Among the benefits they bring, social or professional networks like Facebook or LinkedIn bring also some considerable issues, the most important of them being the identity theft. Defined by Wikipedia as a “form of fraud in which someone pretends to be someone else in order to steal money or obtain other benefits” [2], the identity theft extended naturally also to the internet. Given the fact that each person from such an online network provides personal information, photos and day-to-day activity statuses, it becomes thus exposed to the online identity theft, being easier for a person infiltrated in the circle of friends or professionals to misuse the respective information.
I wanted to write about this issue several weeks ago though I preferred to wait for later, when I was supposed to have more time in order to do some research on this topic, especially from the point of view of the social networking platforms and how they fight against identity theft. I haven’t had the time to do that until now, however today I received an email from a friend asking for help, though the story from the email was questionable. Scammers and identity thefts might have a really good story, though no story is perfect. It might look as the below email story I received today though it might be even more elaborated (I hope I won’t be sued for copy rights by its creator):
“How you doing? We made a trip to London (United Kingdom) unannounced some days back,Unfortunately we got mugged at gun point last night! All cash, Credit card and phone were stolen, we got messed up in another country, stranded in London, fortunately passport was back in my hotel room. It was a bitter experience and i was hurt on my right hand, but would be fine. I am sending you this message because i don't want anyone to panic, we want you to keep it that way for now!
Our return flight leaves in a few hours but I’m having troubles sorting out the hotel bills, wondering if you could loan me some money to sort out the hotel bills and also take a cab to the airport about ($2000). I have been to the police and embassy here, but they aren't helping issues, I have limited means of getting out of here, we canceled our cards already and made a police report, I won’t get a new card number till I get back home! So I really need your help.
You could wire whatever you can spare to my name and hotel address via Western union”
This was not the first message of this type I received in the past, though it was the first time I received such a message from a friend. Given various circumstances I suspected that the story can’t be right, in addition the formulation from the email was raising additional doubts. Knowing that my friend is using one of the social networks, I sent a message, and surprise, some minutes later I’m contacted back by the person certifying the validity of the email message, in plus having a nice discussion. While discussing with the respective person, I finally decided to give a call to a close relative of the respective friend, certifying me that I’m dealing with an identity theft.
Many people think: “no, that won’t happen to me, who will spend so much time longing for my few bucks I saved in my bank account?!”. The internet is the perfect environment for faking an identity, and that’s quite easy to do. Is enough to save some photos from the sites you visit, collect some information about some people and you’re ready to pursuit your criminal goals. For example Facebook allows you to see the photos of the friends of your friends, now it depends also on the privacy options they have chosen, however for many people is possible to see their date of birth, city, children, education, employer, etc. In a recent study made by Sophos was found that 46% of Facebook users accepted friends requests from strangers, 89% of users in their 20s divulged their full birthday, nearly 100% of users post their email address and between 30-40% of users list data about their family and friends [1]. The numbers might not be that high, though there is an issue even when we talk about 1% of the users.
A fact is that your personal information could be further used to collect other details about you, for example by crosschecking the profile against other sites. Some of the users even provide the links to the other social networks they belong to. Of course, that could be useful not only for friends but also for thieves to follow them, and it’s so easy to build such a profile. A courageous thief might even contact the persons and find out thus more information about them, and in theory it’s so easy to do that, it depends also on credulity of the people. 2-3 weeks ago I was watching in the news how a couple discovered they were robbed by one of their new acquaintances from one of the social networks they were using.
On the other side direct contact might not be necessary, a psychological social profile could be built upon the information provided by the people on their hobbies and other interests, preferences, things they are looking for on the web, etc. Of course, for this are need some skills and eventually a good story to sell, though people nowadays become more and more inventive and anything is possible. Sure is that each time you are making public information about you on the internet you should think also how the respective information could be used against you, on whether they could be used to guess any of your passwords or as a start to access other information. The users shouldn’t forget that there are many people who got fired because of the information posted on social networks.
Even if social networks and professional networks are based in general on the principle of friendship, collegiality and professional collaboration, in theory such networks could be easily penetrated by a skilled criminal by creating an adequate profile and interacting eventually with people. In networks of thousands of people catching such criminal could become quite difficult. Who’s responsible for protecting us against online criminality?! Is it the site owners? In many cases site owners run from responsibility or just do something to save their image. It would be great if there would be some governmental or global organizations responsible for that, attempting to monitor and protect users/people’s rights in the virtual world. On the other side even if there are a few organizations of this type (e.g. Identity Theft Resource Center), given the huge amount of virtual users and issues, it’s almost impossible to handle all the issues and be proactive. In the end it’s in users’ interest to minimize the risks! For more information on identity theft and how to protect yourself you could check also www.Combat-Identity-Theft.com or www.justice.gov.
References:
[1] Sohpos. (2009). Facebook: The privacy challenge. [Online] Available from: http://www.sophos.com/security/topic/facebook.html (Accessed: 16 April 2010)
[2] Wikipedia (2010) Identity Theft. [Online] Available from: http://en.wikipedia.org/wiki/Identity_theft (Accessed: 16 April 2010)
16 April 2010
09 April 2010
🔖Knowledge Representation: Knowledge Maps (Part VII: Knowledge Mapping in Action)
Sometimes in order to easier/better understand a text, be it a chapter from a book or an article, online or offline source, I prefer to highlight the most meaningful concepts (the primary concepts) related to the topic(s) the text is approaching, and bring the concepts together in a digital knowledge map. It depends on the text material, sometimes when the subject is too vast and too many concepts are introduced, I prefer to consider the concepts and the relations between them, while other times, when the author tries to treat a topic from various angles I prefer to use techniques like 5W1H and its variations, typically trying to answer to the following questions: who, what, why, where, when, how, in what way and by what means.
In between the identified concepts it might happen to add other concepts that come into my mind or combine two or more sources on the same topic. Thus it happens to arrive to a map like the below one, draw using CMapTools and based initially on an article on Project Management written by C. Roan. The map isn’t by far perfect, this being just its current state, in time following to add more concepts as I get deeper in the subject or new associations are triggered.
Once the map is built it helps to read again the text but this time from the perspective of the map, most probably that this step would help you to find new meaning, conceptual differences and approaches, helping to ground the new knowledge. Each time I’m reviewing such a map, I remember sections from the text, associations, how I arrived to the given associations, in the end each concept in the map is telling a story of its own. In parallel with the source texts and their associated maps, is built also an alternative map, the itinerary and evolution of acquired knowledge and its implication with respect to further knowledge acquisition, retention, retrieval or reuse. In addition this process helps to make the hidden existing knowledge explicit, to ground knowledge into existing structures and derive new meaning and possible areas of exploration.
Each concept from such a map could be taken separately and create a similar map for it, eventually create a map for each of the concepts from the respective maps, and repeat the process over and over again, this allowing to built the whole picture. That’s quite an endeavor, isn’t it? Many of such maps will have common concepts or when put together there could be added other associations. Putting all these maps together is not an easy task, and I feel that more has to be done from this perspective, because are needed powerful tools that allow users to represent knowledge in various forms and patterns, navigate inside of a map or between maps, share the map with others, collaborate, do comparisons and assessments, validate input from a semantical point of view because multiple labels (e.g. synonym family, acronyms) could be used for the same concepts.
Such a map could be used to share knowledge, as starting point for other types of explorations, for example the above map could be used to discuss the issues related to communication, each such concepts coming with its own causes, some of them could have even common root causes, so it would be helpful to identify such situations in order to understand the complexity of causation.
It helps creating such a map also before writing an article, because the map allows identifying the overall coverage of the article, the topics that remain to be approached, the conceptual intersection between the articles. Such a map or text’s projection in such a map could be used as navigation tool for the text, much like book’s indexes but in a hierarchical manner, the association between concepts allowing, at least from my point of view, an easier and better coverage of the text than indexes. Of course, there are still steps to be done in order to directly integrate the text with the built map in order to facilitate text’s navigation, though many of the applications that allow rendering text have built-in search capabilities that could be used by the users to identify the actual location of the concept. On the other side the fact the existence of multiple labels for naming the same concept could raise several problems that could be in theory solved by using powerful semantic search.
The labels I used to represent the concepts might not be the same as the ones used in the source, mainly because I prefer to use the labels that allow me trigger easier memories, sometimes trying to identify a concept that could replace or stand for a whole sentence. The target is actually to find the concept with the smallest unit of meaning that reflects what is said in the text from my perception. I even might choose to represent concepts that have similar meaning, or general and particular meaning with respect to the same scale of meaning, for example the “email” and “voicemail” could be regarded as a “messaging system” but given its importance I feel they need to be shown separately; actually I could have grouped the “email” and “voicemail” as a subgroup of “messaging system”, as I did in case of the “project drivers” case, and usually I prefer to do that, though it depends also on map’s focus, on whether I intent to highlight only the primary concepts or to built the whole range of associations.
There should be a methodology for creating such maps, actually almost each type of map used (e.g. Concept Maps, Mind Maps) come with their own philosophies/methodologies, though the human nature in general and the learning process in particular should not be necessarily bound by that, being important to have the flexibility of representing concepts with the labels we consider as appropriate, alternate representation techniques or unit of meaning.
Once the map is built it helps to read again the text but this time from the perspective of the map, most probably that this step would help you to find new meaning, conceptual differences and approaches, helping to ground the new knowledge. Each time I’m reviewing such a map, I remember sections from the text, associations, how I arrived to the given associations, in the end each concept in the map is telling a story of its own. In parallel with the source texts and their associated maps, is built also an alternative map, the itinerary and evolution of acquired knowledge and its implication with respect to further knowledge acquisition, retention, retrieval or reuse. In addition this process helps to make the hidden existing knowledge explicit, to ground knowledge into existing structures and derive new meaning and possible areas of exploration.
Each concept from such a map could be taken separately and create a similar map for it, eventually create a map for each of the concepts from the respective maps, and repeat the process over and over again, this allowing to built the whole picture. That’s quite an endeavor, isn’t it? Many of such maps will have common concepts or when put together there could be added other associations. Putting all these maps together is not an easy task, and I feel that more has to be done from this perspective, because are needed powerful tools that allow users to represent knowledge in various forms and patterns, navigate inside of a map or between maps, share the map with others, collaborate, do comparisons and assessments, validate input from a semantical point of view because multiple labels (e.g. synonym family, acronyms) could be used for the same concepts.
Such a map could be used to share knowledge, as starting point for other types of explorations, for example the above map could be used to discuss the issues related to communication, each such concepts coming with its own causes, some of them could have even common root causes, so it would be helpful to identify such situations in order to understand the complexity of causation.
It helps creating such a map also before writing an article, because the map allows identifying the overall coverage of the article, the topics that remain to be approached, the conceptual intersection between the articles. Such a map or text’s projection in such a map could be used as navigation tool for the text, much like book’s indexes but in a hierarchical manner, the association between concepts allowing, at least from my point of view, an easier and better coverage of the text than indexes. Of course, there are still steps to be done in order to directly integrate the text with the built map in order to facilitate text’s navigation, though many of the applications that allow rendering text have built-in search capabilities that could be used by the users to identify the actual location of the concept. On the other side the fact the existence of multiple labels for naming the same concept could raise several problems that could be in theory solved by using powerful semantic search.
21 November 2009
🔖Knowledge Representation: The Semantic Web (Part II: On RDF Triples)
W3C (WWW Consortium) created RDF (Resource Description Framework) as an extensible XML-based simple data model with formal semantics capabilities in order to define web metadata, allowing machines to "understand", create, exchange and process information. At the heart of RDF stands the triple, referred also as RDF triple, representing a subject-predicate-object relation indicating that a relationship represented by predicate exists between subject and object. It sounds like it’s possible to describe relationships between concepts, allowing thus to represent the information in (web) documents, resulting a nice set of triples, in which subjects, objects and predicates might be repeated several times.
Even nicer, RDFs can be represented visually, the resulting structure having the form of a graph, also referred as RDF graph, in which subjects and objects are represented as nodes and predicates as arcs, arcs’ direction always pointing towards objects. The graph-like structures allow RDF to take advantage of a whole set of algorithms and models developed over ages in Theory of Graphs, including searching, comparisons, representation and data mining, a nice asset isn’t it?
Having the possibility to describe documents in triple-like fashion is an important step of W3C, though, on the other side, using a syntagma I heard some time ago in OOP (Object Oriented Programming), how many triples it takes to describe the world, with all its beauty and knowledge accumulated over the years? How about expressing complex mathematical relations like the ones defined in algebra. Imagine a relation between a set of m elements and another one of n elements, how would you express that using triples, how about if there are a set of p relations?! How about defining more complex algebra structures? How would you express multidimensionality or hyper-relations using triples? Of course, for the current needs triples suffice, anyway we still ramble in acquiring simple relations in the clouds, no need to go so far away.
Coming to more simplistic representation models, I wonder if it’s possible to model all types of knowledge maps with RDF triples, models that make use of additional attributes like weight, cost, rules, sequencing, time delays, etc. Why am I launching such questions in the dark? We have developed a huge collection of mathematical models, how are we putting them into use?! It’s also possible that I’m missing the overall point over triples, even if I actually used them during schools in Algebra and Graph Theory, it’s true, at basic level compared with the current state of art, though I hope I have an idea of what all it’s about.
Having the possibility to describe documents in triple-like fashion is an important step of W3C, though, on the other side, using a syntagma I heard some time ago in OOP (Object Oriented Programming), how many triples it takes to describe the world, with all its beauty and knowledge accumulated over the years? How about expressing complex mathematical relations like the ones defined in algebra. Imagine a relation between a set of m elements and another one of n elements, how would you express that using triples, how about if there are a set of p relations?! How about defining more complex algebra structures? How would you express multidimensionality or hyper-relations using triples? Of course, for the current needs triples suffice, anyway we still ramble in acquiring simple relations in the clouds, no need to go so far away.
Coming to more simplistic representation models, I wonder if it’s possible to model all types of knowledge maps with RDF triples, models that make use of additional attributes like weight, cost, rules, sequencing, time delays, etc. Why am I launching such questions in the dark? We have developed a huge collection of mathematical models, how are we putting them into use?! It’s also possible that I’m missing the overall point over triples, even if I actually used them during schools in Algebra and Graph Theory, it’s true, at basic level compared with the current state of art, though I hope I have an idea of what all it’s about.
02 October 2009
🔖Knowledge Representation: Cities, Trees and Imagination at Work, a sketch on Mind Maps
From all the definitions of a Mind Map rooted in common experience I find representative the one based on the similarities to a city given by [3]. A city is generally built around a centre (the central idea in Mind Maps) with boulevards (key ideas) branching in radial manner out of it, with secondary streets (secondary ideas) branching out of them, and gradually smaller and smaller streets (less correlated ideas to the central idea), and with cross streets (crossing ideas) connecting them. For a foreigner in a city it’s easier to memorize the boulevards and the streets toward the points of interest or relevance together with landmarks and images (e.g. buildings).
Same as a tourist can manage in the territory with a mental map of the city, same a simple but well formed Mind Map can depict the essential structure of knowledge related to a certain subject. Actually a Mind Map could be compared with the Map of a city rather than the city itself, because both type of Maps represent the territory up to a certain level of detail, they are not the territory itself. On the other side the city like the Mind Map has a dynamic nature, while a Map is more static.
The example of a city has its flows – most of the cities have a networked rather than a radial structure, the number of dead ends could be significantly less than the streets ending in another street. In contrast a typical Mind Map has few crossing ideas, the dead ends governing its structure, for this reason the comparison between a Mind Map and a tree seems to be more natural. On the other side, the comparison with a city has other aspects – for example a city can grow forming a metropolis, same thing could be achieved by adding small Mind Maps to a central Mind Map. Two or more metropolis can form a megalopolis, each with its own centre or in contrast by developing their own centre or just gravitating around one of the already existing centres; the Mind Maps formed by the aggregation or two or more
The example of a city has its flows – most of the cities have a networked rather than a radial structure, the number of dead ends could be significantly less than the streets ending in another street. In contrast a typical Mind Map has few crossing ideas, the dead ends governing its structure, for this reason the comparison between a Mind Map and a tree seems to be more natural. On the other side, the comparison with a city has other aspects – for example a city can grow forming a metropolis, same thing could be achieved by adding small Mind Maps to a central Mind Map. Two or more metropolis can form a megalopolis, each with its own centre or in contrast by developing their own centre or just gravitating around one of the already existing centres; the Mind Maps formed by the aggregation or two or more
Maps are seldom, but not impossible to realize. Another example with small probability to happen is the one in which a city changes in time its centre, the old historical centre being replaced for example by a new business centre, reflecting city’s development; in the same way a Mind Map could shift in theory its centre, though this could happen more because of inconsistencies in Map’s building or because of changes supervened in Map’s detail. These characteristics of a city add a plus to this example versus the one of a tree, in which the trunk represents the central idea, the main branches the key ideas, and the decreasing in thickness branches the less correlated ideas. Unlike a city, a tree doesn’t include crossing ideas unless its 3-dimensionality is ignored or we deal with a curiosity of nature, the same applying to trees’ merging.
Trees have been used from Antiquity in order to represent knowledge - Trees of Life, Trees of Love, Trees of Knowledge, genealogic, kinship or blood relation trees have resisted the time on artefacts dated before B.C., or in printed manuscripts and documents especially from 10th century on, the richness of design and content increasing with the advancement in printing technology. The “Tree of blood relations” (fr: Arbre de consanguinité) appearing in Christiane Klapisch-Zuber’s book, L’ombre des Ancêtres is dated as belonging to the 9th century [4], several others similar trees are dated between 10th and 14th century and available online through Enluminures [1], or in the works of Joachim of Fiore [2], Ramon Lull [5] and others. Usually in such tree-like representations, the branches are just connectors between the various islands of text often represented as leaves, having the characteristics of archaic Mind Maps, resembling more to the graph-like representations. It is impressive the richness of styles and representations, the mixture between text and images, the use of colour and symmetric arrangement.
The city or tree syntagmas are just helpers in understanding the Mind Map, for a deeper apprehension of the subject is maybe more indicated to check Tony Buzan’s books.
References:
[1] Enluminures. [Online] Available from: www.enluminures.culture.fr (Accessed: 1 October 2009)
[2] International Center for Joachimist Studies. (????). Joachim of Fiore. [Online] Available from: http://www.centrostudigioachimiti.it/Gioacchino/GF_Tavoleeng.asp (Accessed: 13 February 2009)
[3] MindMapping.com. (2008) Theory behind Mind Maps [Online] Available from: http://www.mindmapping.com/Theory_Behind_Mind_Maps.htm (Accessed: 1 October 2009)
[4] Weigel. S. (2002) Genealogy: On the iconography and rhetorics of an epistemological topos. [Online] Available from: (Accessed: 1 October 2009)
[5] Wikipedia. 2009. Ramon Llull. [Online] Available from: http://commons.wikimedia.org/wiki/Category:Ramon_Llull (Accessed: 1 October 2009)
Trees have been used from Antiquity in order to represent knowledge - Trees of Life, Trees of Love, Trees of Knowledge, genealogic, kinship or blood relation trees have resisted the time on artefacts dated before B.C., or in printed manuscripts and documents especially from 10th century on, the richness of design and content increasing with the advancement in printing technology. The “Tree of blood relations” (fr: Arbre de consanguinité) appearing in Christiane Klapisch-Zuber’s book, L’ombre des Ancêtres is dated as belonging to the 9th century [4], several others similar trees are dated between 10th and 14th century and available online through Enluminures [1], or in the works of Joachim of Fiore [2], Ramon Lull [5] and others. Usually in such tree-like representations, the branches are just connectors between the various islands of text often represented as leaves, having the characteristics of archaic Mind Maps, resembling more to the graph-like representations. It is impressive the richness of styles and representations, the mixture between text and images, the use of colour and symmetric arrangement.
The city or tree syntagmas are just helpers in understanding the Mind Map, for a deeper apprehension of the subject is maybe more indicated to check Tony Buzan’s books.
References:
[1] Enluminures. [Online] Available from: www.enluminures.culture.fr (Accessed: 1 October 2009)
[2] International Center for Joachimist Studies. (????). Joachim of Fiore. [Online] Available from: http://www.centrostudigioachimiti.it/Gioacchino/GF_Tavoleeng.asp (Accessed: 13 February 2009)
[3] MindMapping.com. (2008) Theory behind Mind Maps [Online] Available from: http://www.mindmapping.com/Theory_Behind_Mind_Maps.htm (Accessed: 1 October 2009)
[4] Weigel. S. (2002) Genealogy: On the iconography and rhetorics of an epistemological topos. [Online] Available from: (Accessed: 1 October 2009)
[5] Wikipedia. 2009. Ramon Llull. [Online] Available from: http://commons.wikimedia.org/wiki/Category:Ramon_Llull (Accessed: 1 October 2009)
28 September 2009
🕸️Web x.0:Sidewiki, to be or not to be
One important fact I failed to remark in the research for the previous post was that Google's initiative in not singular, a first attempt in the world of “commenting systems” was made in 2001 by Third Voice though it had to discontinue its services only after 2 years [3]. More recent similar but almost anonym initiatives are Blerp, Reframe it or You Sticker, and now Google‘s Sidewiki joined the club! Why would Google succeed where other companies failed? What Google has and other companies don't have? First of all Google is established as brand, has credibility, human and financial resources, the infrastructure and processing power its predecessor and competitors didn't had.
As also [2] remarks "None so far has been backed by a company that could reach the critical mass needed to make the program a success". Secondly, Google doesn't depend only on one project and it has many other initiatives focusing on Web 2.0, having the capacity to evolve the tool and in time integrate it with other products. Actually Sidewiki commenting system is based on Google profiles, the posted comments appearing in users’ profile and by choice also in the owned blogs. Third Google offers an API which I hope can be easily integrated in third party tools and used for data mining such content. Above all Google has accumulated lot of experience in the sphere of Web technologies, is one of the pioneers and architects of Web x.0 and it has the potential to succeed where other failed.
Even if Third Voice gathered a couple hundred thousand users, according to [3] it succumbed under the menace of a powerful coalition formed by 400 independent Web hosts. Another reason for its weakness what the fact that it "couldn't generate enough advertising revenue to raise consumers' awareness of its free service, and it couldn't generate enough consumer awareness to raise the advertising revenue it needed to stay in business" [3], a chain of weakness isn’t it? Often for small companies it's not so easy to reach the potential customers or manage advertising own products enough, and that can be seen especially in case of startups. Even if the message reached the customers, it’s difficult to stir their interest and gain their trust. How do I know that the tool I download does only what is supposed to do?! Sometimes I am reluctant to install a tool on my computer because I haven't heard of it or/and the supporting website doesn't inspire any credibility or by being too vague in describing the functionality doesn't encourages me in a significant manner to download the tool.
As in the case of Third Voice, the number of early adopters is not always sufficient in order to make a tool survive the early adoption difficulties. Moreover, many new technologies in order to survive need a market prepared to accept them, and this seems to be one of the most important barriers. Even there was a need in the market and the intents were noble, the “Web graffiti”, as Third Voice “sticky notes” were named by its opponents [3], didn’t make it. Philosophies behind technologies look nice on paper though they might perish in the touch world of the Internet. Is it a different situation for Sidewiki?
Even if Third Voice gathered a couple hundred thousand users, according to [3] it succumbed under the menace of a powerful coalition formed by 400 independent Web hosts. Another reason for its weakness what the fact that it "couldn't generate enough advertising revenue to raise consumers' awareness of its free service, and it couldn't generate enough consumer awareness to raise the advertising revenue it needed to stay in business" [3], a chain of weakness isn’t it? Often for small companies it's not so easy to reach the potential customers or manage advertising own products enough, and that can be seen especially in case of startups. Even if the message reached the customers, it’s difficult to stir their interest and gain their trust. How do I know that the tool I download does only what is supposed to do?! Sometimes I am reluctant to install a tool on my computer because I haven't heard of it or/and the supporting website doesn't inspire any credibility or by being too vague in describing the functionality doesn't encourages me in a significant manner to download the tool.
As in the case of Third Voice, the number of early adopters is not always sufficient in order to make a tool survive the early adoption difficulties. Moreover, many new technologies in order to survive need a market prepared to accept them, and this seems to be one of the most important barriers. Even there was a need in the market and the intents were noble, the “Web graffiti”, as Third Voice “sticky notes” were named by its opponents [3], didn’t make it. Philosophies behind technologies look nice on paper though they might perish in the touch world of the Internet. Is it a different situation for Sidewiki?
Even if the number of its opponents is not to neglect, I tend to believe that the nowadays conjuncture is beneficial, the transition toward a read-write Web is helped by a change in mentality at micro and macro level. There are still barriers to overcome raised especially from people’s confusion concerning what the read-write Web is about. People or in general content publishers feel they are loosing the control over their own content, and that’s one of the cases against such “commenting systems”. Is it really so?! Sidewiki is installed by choice by those interested in commenting and reading others' comments; it’s isolated from publisher's content the only links being the integrated display and the reference to the source. Content creators are not loosing the control over their content and websites but about the comments made at their address, and that’s quite a pain, however as Mike Koss nicely puts it in an answer to J.A. Seidl’s posting, “just as a publishers "owns" their content, readers have a right to "own" their feedback and comments” [1].
Many argue that such comments will have a negative impact on the quality of the content, that the discussions might take two distinct flows on the sites having already built-in commenting functionality; in the end is at users' latitude which one of them they want to use. I would expect that most of the users are interested in receiving feedback on what they wrote, either from the publisher or from other users, and thus the built-in functionality would more likely be used. On the other side, some sites make it difficult to include comments for example by having a poor interface or the well known annoying captchas.
We sometimes have too great expectations and forget that each technology and initiative needs time to catch ground and maturity. Maybe we see too easy the flaws and neglect the potential. It will be interesting to watch the degree Google will use such comments, either for simple categorization of pages, consolidating user profiles or for complex web data mining. By projecting users' comments in the space created by the commented content can be established a backbone on which the content was built (e.g. words/concepts with higher relevance) fact which can help better categorize web pages but also identify users' sphere of interests and even determine their competency in a certain area. Could be thus established more "accurate" and "detailed" users profiles, and derived increased "profitability" by reducing the number of anonymous posts. Some people might argue that we don't need a tool like Sidewiki to post comments on or about sites, same can be obtained with other tools too, of course, there is always the freedom of choice. I find Sidewiki having greater potential than the tools I arrived to know.
There will be many content creators (publishers), users and communities against Sidewiki, resuming to solid or childish grounds, with an expected plus for the later. In the end what it counts is the number of adopters, number that might increase with the degree of credibility the tool obtains in time. Sometimes is needed a big stone in order to create a meaningful wave, Goggle launched it, let's see how far it goes!
References:
[1] FASeild. (2009). Google Sidewiki: Do [No?] Evil. [Online] Available from: http://faseidl.com/public/item/241498 (Accessed: 28 September 2009)
[2] GHacks. (2009). Google Sidewiki. [Online] Available from: http://www.ghacks.net/2009/09/25/google-sidewiki/(Accessed: 28 September 2009)
[3] Wired. (2001). Third Voice Trails Off... [Online] Available from: http://www.wired.com/techbiz/media/news/2001/04/42803 (Accessed: 28 September 2009)
Many argue that such comments will have a negative impact on the quality of the content, that the discussions might take two distinct flows on the sites having already built-in commenting functionality; in the end is at users' latitude which one of them they want to use. I would expect that most of the users are interested in receiving feedback on what they wrote, either from the publisher or from other users, and thus the built-in functionality would more likely be used. On the other side, some sites make it difficult to include comments for example by having a poor interface or the well known annoying captchas.
We sometimes have too great expectations and forget that each technology and initiative needs time to catch ground and maturity. Maybe we see too easy the flaws and neglect the potential. It will be interesting to watch the degree Google will use such comments, either for simple categorization of pages, consolidating user profiles or for complex web data mining. By projecting users' comments in the space created by the commented content can be established a backbone on which the content was built (e.g. words/concepts with higher relevance) fact which can help better categorize web pages but also identify users' sphere of interests and even determine their competency in a certain area. Could be thus established more "accurate" and "detailed" users profiles, and derived increased "profitability" by reducing the number of anonymous posts. Some people might argue that we don't need a tool like Sidewiki to post comments on or about sites, same can be obtained with other tools too, of course, there is always the freedom of choice. I find Sidewiki having greater potential than the tools I arrived to know.
There will be many content creators (publishers), users and communities against Sidewiki, resuming to solid or childish grounds, with an expected plus for the later. In the end what it counts is the number of adopters, number that might increase with the degree of credibility the tool obtains in time. Sometimes is needed a big stone in order to create a meaningful wave, Goggle launched it, let's see how far it goes!
References:
[1] FASeild. (2009). Google Sidewiki: Do [No?] Evil. [Online] Available from: http://faseidl.com/public/item/241498 (Accessed: 28 September 2009)
[2] GHacks. (2009). Google Sidewiki. [Online] Available from: http://www.ghacks.net/2009/09/25/google-sidewiki/(Accessed: 28 September 2009)
[3] Wired. (2001). Third Voice Trails Off... [Online] Available from: http://www.wired.com/techbiz/media/news/2001/04/42803 (Accessed: 28 September 2009)
24 September 2009
🕸️Web x.0: Sidewiki, new Google tool for Web 2.0
On Wednesday Google launched Sidewiki, a browser sidebar tool coming as part of Google Toolbars and installable on Firefox2+, Internet Explorer6+ and soon on Google Chrome. What’s great about Sidewiki?! It allows adding comments to the whole content or sections of a Web Page, all content posted in this manner being public and thus seen by other people. It is thus possible to add annotations to Web Pages, share thoughts and ideas, criticize or encourage, categorize content, etc. It’s also a way of saying I’ve been here, (didn’t) liked that, here are my 2 cents, my extraordinary philosophy obtained sitting in front of the TV, etc. Because of that Google avoided to show the messages in the order they were entered but, according to their presentation, they are “using an algorithm that promotes the most useful, high-quality entries".
I like the idea! I've been actually waiting for this! I consider it as a step forward toward collaborative content creation, of allowing users to create more structured metadata (e.g. Knowledge Maps, concept clouds) for Web Pages outside of the functionality provided by their creators. In addition, it is thus build a new network structure on top of existing Web graph, structure from which users and creators could have something to win. I’d expect more functionality can be built on top of Sidewiki’s API
and hopefully Google will add to it more functionality – for example I’d like to manage the content I’ve commented, allow me to categorize content or simply select passages I really liked without adding any comments, and store the content in the Google repository or exporting it on the local computer, together with additional metadata about source (references to the source should be a must). Talking about categorization of content, if it's not possible to select phrases because of copywrite contention, then it would be great if I could select words that were meaningful for me and further use them in creating Knowledge Maps, in tool itself or by exporting/importing them in third party tools.
The news has been taken over by bloggers, pros and cons being more or less professionally advocated. Jeff Jarvis in BuzzMachine seems to see the new feature as a danger because “is trying to take interactivity away from the source and centralize it”, resulting a conflict between Goggle’s tool and Web Page’s built-in functionality, the lost of ownership over owns’ content. I’d say that he sees the negative side of the story and I can’t say he’s wrong though that’s one of the risks content creators assumed once they made the content available publicly online. Their work might be “ruined”, but not entirely, there is a potentiality for growth in information’s richness and maybe quality residing in the exchange of ideas. On the other side users don’t know how to handle too much freedom, stupid comments and ads are waiting at the corner. Probably the content creators should have a say in all this, at least by weighting negatively such posts if not by deleting the content. I observed there is a way to report abuse, though I wonder how much is really working, how much content creators and users are really willing to use it?! It is true that Google enforces Sidewiki Program Policies, though nothing seems to stop the spammers.
17 July 2009
🔖Knowledge Representation: Thinking Maps
Introduction
Dr. D. Hyerle grouped under Thinking Maps syntagm a set of eight metacognitive visual tools rooted in the eight cognitive skills: defining in context, describing attributes, comparing and contrasting, classification, part-whole spatial reasoning, sequencing, cause and effect reasoning, and reasoning by analogy [1]. He used the tools to create a easy to use language for learning and information representation, the eight graphic primitives can be used in an infinite of ways. There are several diagrams which summarize what the eight Maps are about:
Benefits associated with the use of Thinking Maps can be found in [3], [11] and [2] together with modes of employment.
Circle Maps
Circle Maps are used to place concepts into a context with the help of two concentric circles, the smaller one containing the context, while in the outer circle are placed the associated concepts, acting like properties or association bag. Concepts are usually clustered without creating explicit relations between them, more complex Circle Maps being created using multiple concentric circles, a target diagram according to [12], or by partitioning the outer circle, creating thus different spheres of meaning.
Given its geometrical properties (e.g. centricity, equidistance, regularity), the circle is a perfect tool for representations, though it doesn’t have to be used as a leitmotif; triangles, squares, rectangles or any other regular polygons can be used for the same purpose, especially when additional intrinsic characteristic are highlighted, for example trinity, square of opposition, n-tuplicity, etc.
Circle Maps can be pretty simplistic, in simplicity residing their beauty and use; overall Circle Maps are a perfect tool to introduce concepts, especially in primary school. Their importance should not be underestimated, they can have strong representational power especially when used in combination with other representational patterns.
Bubble Maps
Bubble Maps focus on direct associations between a concept and its descriptors, also called adjectives, qualities, attributes or characteristics [11]. Such representations are integrant part of many types of Maps that represent associations explicitly (e.g. Mind Maps, Concept Maps). Extensively, a Bubble Map could be used for the same representations as Circle Maps, allowing thus explicit associations between a concept and its attributes, same it can include other part of speech, concepts or fragments of text. For greater effect, Bubble Maps could be combined with Circle Maps, especially when needed to highlight different boundaries.
Double Bubble Maps
Double Bubble Maps are used for comparing and contrasting the descriptors of two concepts. Another popular tools used for the same purpose are the Venn diagrams, which mixes some of the characteristics of Circle Maps and Double Bubble Maps, though they are sometimes more complex to use and, in plus, they allow the comparison of multiple concepts. Are few the situations in which more than two concepts need to be compared, how should such a Map be called?! Maybe Multi-Bubble Maps…
Flow Map
Most probably many people are already familiar with flowcharts or flow diagrams, one of the process diagrams used to model the flow of processes (systems), and sometimes considered synonym to them. Hyerle’s Flow Map seems to be slightly different than the flow diagrams used to model processes, and even if both maps are based on sequencing and ordering principle, the later seems to be more complex and use more representational elements, containing symbols for decision, delays, predefined subprocesses or data input/output. Hyerle’s Flow Map resumes only at presenting information in sequencing and ordering manner, being capable of represent for example a linear causality sequence or the points on a scale (e.g. past, present, near future, future or very cold, cold, warm, very warm). I consider scales, also named continuums by [12], a pattern of its own, used to represent a set of ordered concepts, including timelines, transition between two states, scales of values, ordered sets, etc. It is possible to represent together two or more scales/continuums within the same system of coordinates, each scale on an axis of its own. Such a system is called a crossed continuum by [12] and conceptual space by [13].
Multi-Flow Maps
A Multi-Flow Map is obtained by combining more than one Flow Maps, creating parallel or intersected sequences. Therefore they are useful to represent causes and effects diagrams, more like the well-known Fishbone diagram, the distinction residing in the fact that the multi-flow Maps not necessarily follow a hierarchical structure, multiple effects being possible. In addition the Fishbone diagram has a “methodology” of its own, the causes being identified starting from an observed effect.
It’s interesting that [10] makes distinction between Multiple Causes Maps and Multiple Effects, which could be taken as particular Multi-Flow Maps.
Brace Maps and Tree Maps
Brace Maps are the only type of Maps I often saw used in manuals or other type of books, usually for detailing the parts of concepts allowing thus to analyze the parts of a concept and the concept itself. Brace Maps are used also for the classification and grouping of concepts, in Hyerle’s system usually represented using Tree Maps.
I often used Brace Maps in Mathematical definitions, when the definitions need to be split in parallel threads (left braces), or demonstrations, when multiple threads flow into the final result (right). Even the use is slightly different the principle is somehow similar.
Bridge Maps
Bridge Maps are used for highlighting analogies between concepts into an inversed Vee-like diagram, which can be repeated for each additional analogy added to the chain, with the comparison concepts on top and the relating factors below. Bridge Maps can be used not only for simple analogies, but also for metaphors. I expect that in case are needed to be compared multiple related factor types for the same concepts, then it will be created one Bridge Map for each factor type. For such scenarios a simple table could be a better choice, in which the compared concepts form the headers, while the related factors are the actual records. Even more, the concept representing the concept type can be added too, forming a matrix. An example of such matrix can be found in a previous posting on Web’s evolution. Even if the use of Bridge Maps expresses directly the intent of representing analogies, I find tables or matrixes much simpler to use and non-redundant.
New Patterns, Old Patterns
The patterns encompassed in Thinking Maps are not new, many of them have been used a few centuries ago, as can be seen from the below examples. In the first figure can be seen the Buenting clover leaf map, woodcut made in 1581 in Megdeburg; it can be regarded as a combination between Circle Map and Bubble Map. In the second figure from Athanasius Kircher’s Oedipus Aegyptiacus can be seen a wonderful complex diagram of the names of God, a combination of a partitioned target diagram (multi-concentric Circle Maps) and Tree Maps. In the third figure, a simple I Chin diagram based on Pa Gua trigrams, a partitioned Circle Map making use of symbols, the same theme being present also in the fourth diagram, which evolves the I Ching model to a representation of the DNA world.
References:
[1] Hyerle, D. (2008). Thinking Maps®: A Visual Language for Learning. In: Thinking Maps®: A Visual Language for Learning, ISBN: 978-1-84800-149-7. [Online] Available from: http://www.springerlink.com/content/x57121720731381j/ (Accessed: 23 June 2009)
[2] A. Costa, P. Wolfe, H. Gardner, D. Goldman. The Networking Brain and Mind. [Online] Available from: http://www.mapthemind.com/pdf/visual_tools/visual_tools_CH2_20_35.pdf (Accessed: 7 July 2009)
[3] Learning Prep School. Thinking Maps. [Online] Available from: http://www.learningprep.org/thinkingmaps.htm (Accessed: 7 July 2009)
[4] Zen’s Sekai I. (2007). I Ching. [Online] Available from: http://zensekai.wordpress.com/2007/04/05/i-ching/ (Accessed: 8 July 2009)
[5] The Abysmal. (2006). DNA Codon Mandala. [Online] Available from: http://theabysmal.wordpress.com/2006/07/15/dna-codon-mandala/ (Accessed: 8 July 2009)
[6] Learn NC. Buenting clover leaf map. [Online] Available from: http://www.learnnc.org/lp/multimedia/6981
[7] L. Sachar. Multiple Mapping: Holes. [Online] Available from: http://www.learningprep.org/images/thinkingmaps_album/student_work_images/mult_mapping_holes_louis.JPG (Accessed: 12 July 2009)
[8] Seattle Schools. Thinking Maps. [Online] Available from: http://www.seattleschools.org/area/arts/visualarts/thi_map.html (Accessed: 13 July 2009)
[9] SaskEd. Unit Five: Social Development. [Online] Available from: http://www.sasked.gov.sk.ca/docs/native30/nover5.html (Accessed: 13 July 2009)
[10] Somers Central School District. ????. Graphic Organizers that Support Specific Thinking Skills. [Online] Available from: http://www.somers.k12.ny.us/intranet/skills/thinkmaps.html (Accessed: 14 July 2009)
[11] Hyerle. D. (2000) Thinking Maps® for Reading Minds. In: A Field Guide to Using Visual Tools. Association for Supervision & Curriculum Deve. ISBN: 978-0871203670. [Online] Available from: http://www.mapthemind.com/PDF/visual_tools/visual_tools_CH6_100_123.pdf (Accessed: 14 July 2009)
[12] G. Petty. (2009). ISBN: 978-1-4085-0452-9. Evidence Based Teaching: A Practical Approach. 2nd Ed. [Online] Available from: http://bookshop.blackwell.co.uk/extracts/evidence_based_teaching.pdf (Accessed: 16 July 2009)
[13] Gaerdenfors, P. (2000). Conceptual Spaces: The Geometry of Thought. Massachusetts Institute of Technology. ISBN: 0-262-07199-1.
[14] Cramer, F (2005) Computations of Totality. In: Words Made Flesh – Code, Culture, Imagination. Piet Zwart Institute. [Online] Available from: http://pzwart.wdka.hro.nl/mdr/research/fcramer/wordsmadeflesh/03-chapter_2/ (Accessed: 16 July 2009)
Dr. D. Hyerle grouped under Thinking Maps syntagm a set of eight metacognitive visual tools rooted in the eight cognitive skills: defining in context, describing attributes, comparing and contrasting, classification, part-whole spatial reasoning, sequencing, cause and effect reasoning, and reasoning by analogy [1]. He used the tools to create a easy to use language for learning and information representation, the eight graphic primitives can be used in an infinite of ways. There are several diagrams which summarize what the eight Maps are about:
|
 |
| Thinking Maps [8] | Thinking Maps [9] |
Benefits associated with the use of Thinking Maps can be found in [3], [11] and [2] together with modes of employment.
Circle Maps
Circle Maps are used to place concepts into a context with the help of two concentric circles, the smaller one containing the context, while in the outer circle are placed the associated concepts, acting like properties or association bag. Concepts are usually clustered without creating explicit relations between them, more complex Circle Maps being created using multiple concentric circles, a target diagram according to [12], or by partitioning the outer circle, creating thus different spheres of meaning.
Given its geometrical properties (e.g. centricity, equidistance, regularity), the circle is a perfect tool for representations, though it doesn’t have to be used as a leitmotif; triangles, squares, rectangles or any other regular polygons can be used for the same purpose, especially when additional intrinsic characteristic are highlighted, for example trinity, square of opposition, n-tuplicity, etc.
Circle Maps can be pretty simplistic, in simplicity residing their beauty and use; overall Circle Maps are a perfect tool to introduce concepts, especially in primary school. Their importance should not be underestimated, they can have strong representational power especially when used in combination with other representational patterns.
Bubble Maps
Bubble Maps focus on direct associations between a concept and its descriptors, also called adjectives, qualities, attributes or characteristics [11]. Such representations are integrant part of many types of Maps that represent associations explicitly (e.g. Mind Maps, Concept Maps). Extensively, a Bubble Map could be used for the same representations as Circle Maps, allowing thus explicit associations between a concept and its attributes, same it can include other part of speech, concepts or fragments of text. For greater effect, Bubble Maps could be combined with Circle Maps, especially when needed to highlight different boundaries.
Double Bubble Maps
Double Bubble Maps are used for comparing and contrasting the descriptors of two concepts. Another popular tools used for the same purpose are the Venn diagrams, which mixes some of the characteristics of Circle Maps and Double Bubble Maps, though they are sometimes more complex to use and, in plus, they allow the comparison of multiple concepts. Are few the situations in which more than two concepts need to be compared, how should such a Map be called?! Maybe Multi-Bubble Maps…
Flow Map
Most probably many people are already familiar with flowcharts or flow diagrams, one of the process diagrams used to model the flow of processes (systems), and sometimes considered synonym to them. Hyerle’s Flow Map seems to be slightly different than the flow diagrams used to model processes, and even if both maps are based on sequencing and ordering principle, the later seems to be more complex and use more representational elements, containing symbols for decision, delays, predefined subprocesses or data input/output. Hyerle’s Flow Map resumes only at presenting information in sequencing and ordering manner, being capable of represent for example a linear causality sequence or the points on a scale (e.g. past, present, near future, future or very cold, cold, warm, very warm). I consider scales, also named continuums by [12], a pattern of its own, used to represent a set of ordered concepts, including timelines, transition between two states, scales of values, ordered sets, etc. It is possible to represent together two or more scales/continuums within the same system of coordinates, each scale on an axis of its own. Such a system is called a crossed continuum by [12] and conceptual space by [13].
Multi-Flow Maps
A Multi-Flow Map is obtained by combining more than one Flow Maps, creating parallel or intersected sequences. Therefore they are useful to represent causes and effects diagrams, more like the well-known Fishbone diagram, the distinction residing in the fact that the multi-flow Maps not necessarily follow a hierarchical structure, multiple effects being possible. In addition the Fishbone diagram has a “methodology” of its own, the causes being identified starting from an observed effect.
It’s interesting that [10] makes distinction between Multiple Causes Maps and Multiple Effects, which could be taken as particular Multi-Flow Maps.
Brace Maps and Tree Maps
Brace Maps are the only type of Maps I often saw used in manuals or other type of books, usually for detailing the parts of concepts allowing thus to analyze the parts of a concept and the concept itself. Brace Maps are used also for the classification and grouping of concepts, in Hyerle’s system usually represented using Tree Maps.
I often used Brace Maps in Mathematical definitions, when the definitions need to be split in parallel threads (left braces), or demonstrations, when multiple threads flow into the final result (right). Even the use is slightly different the principle is somehow similar.
Bridge Maps
Bridge Maps are used for highlighting analogies between concepts into an inversed Vee-like diagram, which can be repeated for each additional analogy added to the chain, with the comparison concepts on top and the relating factors below. Bridge Maps can be used not only for simple analogies, but also for metaphors. I expect that in case are needed to be compared multiple related factor types for the same concepts, then it will be created one Bridge Map for each factor type. For such scenarios a simple table could be a better choice, in which the compared concepts form the headers, while the related factors are the actual records. Even more, the concept representing the concept type can be added too, forming a matrix. An example of such matrix can be found in a previous posting on Web’s evolution. Even if the use of Bridge Maps expresses directly the intent of representing analogies, I find tables or matrixes much simpler to use and non-redundant.
New Patterns, Old Patterns
The patterns encompassed in Thinking Maps are not new, many of them have been used a few centuries ago, as can be seen from the below examples. In the first figure can be seen the Buenting clover leaf map, woodcut made in 1581 in Megdeburg; it can be regarded as a combination between Circle Map and Bubble Map. In the second figure from Athanasius Kircher’s Oedipus Aegyptiacus can be seen a wonderful complex diagram of the names of God, a combination of a partitioned target diagram (multi-concentric Circle Maps) and Tree Maps. In the third figure, a simple I Chin diagram based on Pa Gua trigrams, a partitioned Circle Map making use of symbols, the same theme being present also in the fourth diagram, which evolves the I Ching model to a representation of the DNA world.
|
|
| Buenting clover leaf map [6] | Athanasius Kircher’s Oedipus Aegyptiacus [14] |
|
|
| I Ching [4] | DNA/RNA Mandala [5] |
References:
[1] Hyerle, D. (2008). Thinking Maps®: A Visual Language for Learning. In: Thinking Maps®: A Visual Language for Learning, ISBN: 978-1-84800-149-7. [Online] Available from: http://www.springerlink.com/content/x57121720731381j/ (Accessed: 23 June 2009)
[2] A. Costa, P. Wolfe, H. Gardner, D. Goldman. The Networking Brain and Mind. [Online] Available from: http://www.mapthemind.com/pdf/visual_tools/visual_tools_CH2_20_35.pdf (Accessed: 7 July 2009)
[3] Learning Prep School. Thinking Maps. [Online] Available from: http://www.learningprep.org/thinkingmaps.htm (Accessed: 7 July 2009)
[4] Zen’s Sekai I. (2007). I Ching. [Online] Available from: http://zensekai.wordpress.com/2007/04/05/i-ching/ (Accessed: 8 July 2009)
[5] The Abysmal. (2006). DNA Codon Mandala. [Online] Available from: http://theabysmal.wordpress.com/2006/07/15/dna-codon-mandala/ (Accessed: 8 July 2009)
[6] Learn NC. Buenting clover leaf map. [Online] Available from: http://www.learnnc.org/lp/multimedia/6981
[7] L. Sachar. Multiple Mapping: Holes. [Online] Available from: http://www.learningprep.org/images/thinkingmaps_album/student_work_images/mult_mapping_holes_louis.JPG (Accessed: 12 July 2009)
[8] Seattle Schools. Thinking Maps. [Online] Available from: http://www.seattleschools.org/area/arts/visualarts/thi_map.html (Accessed: 13 July 2009)
[9] SaskEd. Unit Five: Social Development. [Online] Available from: http://www.sasked.gov.sk.ca/docs/native30/nover5.html (Accessed: 13 July 2009)
[10] Somers Central School District. ????. Graphic Organizers that Support Specific Thinking Skills. [Online] Available from: http://www.somers.k12.ny.us/intranet/skills/thinkmaps.html (Accessed: 14 July 2009)
[11] Hyerle. D. (2000) Thinking Maps® for Reading Minds. In: A Field Guide to Using Visual Tools. Association for Supervision & Curriculum Deve. ISBN: 978-0871203670. [Online] Available from: http://www.mapthemind.com/PDF/visual_tools/visual_tools_CH6_100_123.pdf (Accessed: 14 July 2009)
[12] G. Petty. (2009). ISBN: 978-1-4085-0452-9. Evidence Based Teaching: A Practical Approach. 2nd Ed. [Online] Available from: http://bookshop.blackwell.co.uk/extracts/evidence_based_teaching.pdf (Accessed: 16 July 2009)
[13] Gaerdenfors, P. (2000). Conceptual Spaces: The Geometry of Thought. Massachusetts Institute of Technology. ISBN: 0-262-07199-1.
[14] Cramer, F (2005) Computations of Totality. In: Words Made Flesh – Code, Culture, Imagination. Piet Zwart Institute. [Online] Available from: http://pzwart.wdka.hro.nl/mdr/research/fcramer/wordsmadeflesh/03-chapter_2/ (Accessed: 16 July 2009)
03 July 2009
🔖Knowledge Representation: Knowledge Representation in Antiquity
I’m fascinated by the techniques and tools used for Knowledge Representation, especially the ones used in the past, centuries and even thousands of years before. Somebody was saying that nothing is new under the sky, everything existed before, even if it was in a more archaic form of expression, the simplicity doesn’t diminish the importance.
My fascination is somehow correlated to the fact that many of the representations that can be catalogued under Knowledge Representation are related to philosophical and religious believes, two of the domains that played an important role in the life of the spiritual man from antiquity. Oh, I forgot astronomy or, astrology if you want, the associations of stars in constellations, uniting the dots in a pattern that can be easier memorized and identified, can be considered maybe as a pseudo-technique for Knowledge Representation.
In my dissertation paper, in a short historical overview of Knowledge Representation structures used over time, I mentioned the Tree of Life representations on stone, ceramic or clay artefacts preserved until now from different cultures, the “arbor porphyriana” or “Porphyrian tree”, genealogical trees dated from 11th century, KRS like representation of Joachim of Fiore [1] or Ramon Llul [2], the Sephirotic Tree central to Jewish tradition, quipas and square of oppositions. Actually, the list of such representation is much bigger; I tried to point only the oldest sources in order to highlight the existence of various such representation techniques. I think that I could have talked more about some representations and add many more examples, though I don’t think it was nor the place and neither the time to do it, for some of them needing to do more research, given their interpretational richness. In the past two weeks I tried to do some research in this direction, I advanced a little in the subject though there is still a long way to go. I realized that for the moment would be impossible to approach the subject in a more structured and professional form, on subjects like the Tree of Life or Sephirotic Tree has been written many books and advanced many theories. As I am interested in the Kabbalistic and Hermetic traditions, some of the mentioned representations were not new to me, their richness of meaning intriguing me, this being also one of the reasons for which I chosen a topic for my dissertation paper related to Knowledge Representation.
The Sephirotic Tree is actually my first meaningful intersection with a KRS, giving it some thought over time, trying to understand the various interpretations, and believe me, there is a whole set of philosophies based on it. As Frater FP highlights, the Sephirotic Tree became a Meta-Map or Meta-Model for a Meta-System “capable of comprehending other systems within itself”, the Seven Rays and Chakra systems, the astrology itself and Tarot being examples of other meta-models [4]. It is actually interesting to study how such models were formed and evolved, unfortunately all we can is to launch in the blue other more or less fantastic theories. In many sources it is advanced the idea that the Jewish Sephirotic Tree derives from the Egyptian or Assyrian/Babylonian Tree of Life, theory proved by the antique artefacts found, though Trees of Life can be met also Indian or Nazca antic cultures, revealing the universality of such a symbol. These various tree representations could have in theory a unique source, though this supposes the existence of an older culture, why not the Atlanteans, though that’s maybe a little too much SF for this post, unlike you are open for such theories. If no such common source exists, then most probably exist something higher, a collective or archetypal consciousness, same as is possible that people arrived independently to the same truths, so there must be a correlation between the tree and the inner/outer world.
Other religious representations are centred on trinity, the various types of crosses and shields of trinity being an example in this direction. The oldest shields of trinity I know of are the ones available in Cotton Faustina and Summa Vitiorum manuscripts from 13th century. A second type of representations was transmitted through the intermediary of seals and even coins, their means being lost in the past.
As I previously mentioned, an important amount of knowledge was transmitted in relation to the stars, zodiacs like the ones present in a 6th century synagogue at Beit Alpha, Israel, cosmic diagrams like the Macrobian diagram from 9th century and sky charts like the Chinese one dated to 7th century seems to be common along the time. Such testimonies of the past are again present on all continents in various forms and styles. Now that we are approaching with rapid steps the year 2012, the end of the world or beginning of a new era after some interpreters of Mayan calendar, a hoax for others, based on moon’s natural cycle, the Mayan calendar spans over a range of 5125 years, between 3113 BC and 2012 AD; jumping over interpretations, it remains the beauty and abstractness of Mayan calendar representations.
It doesn’t makes sense to talk about Knowledge Representation in antiquity without mentioning, at least roughly, a masterpieces of Chinese thought, I Ching, the Book of Changes. Based on 64 hexagrams rooted in yin and yang principles, it presents a beautiful complex Meta-Model, hard to grasp by most of the mortals, and I’m one of them, at least for now.
References:
1. International Center for Joachimist Studies. (????). Joachim of Fiore. [Online] Available from: http://www.centrostudigioachimiti.it/Gioacchino/GF_Tavoleeng.asp (Accessed: 13 February 2009)
2. Cahill, M.J. 2005. Graphical Languages – History and Uses. Future Knowledge Group. [Online] Available from: http://www.futureknowledge.biz/Graphical%20Languages%20-%20History%20and%20Uses-1.1.pdf (Accessed: 8 January 2008)
3. S. Weigel. ????. Genealogy, On the iconography and rhetorics of an epistemological topos. Enciclopédia e Hipertexto. [Online] Available from: http://www.educ.fc.ul.pt/hyper/resources/sweigel/ (Accessed: 3 July 2009)
4. Frater FP. 2005. The Magician’s Kabbalah. [Online] Available from: http://www.scribd.com/doc/16605805/The-Magicians-Kabbalah (Accessed: 3 July 2009)
5. TutorGig. 2009. Astrology [Online] Available from: http://www.tutorgig.com/ed/Astrology (Accessed: 3 July 2009)
6. Wikipedia. 2009. Flat Earth. [Online] Available from: http://en.wikipedia.org/wiki/Flat_Earth (Accessed: 3 July 2009)
7. KIDIPEDE. 2009. Chinese Astronomy. [Online] Available from: http://www.historyforkids.org/learn/china/science/pictures/starmap.jpg (Accessed: 3 July 2009)
My fascination is somehow correlated to the fact that many of the representations that can be catalogued under Knowledge Representation are related to philosophical and religious believes, two of the domains that played an important role in the life of the spiritual man from antiquity. Oh, I forgot astronomy or, astrology if you want, the associations of stars in constellations, uniting the dots in a pattern that can be easier memorized and identified, can be considered maybe as a pseudo-technique for Knowledge Representation.
In my dissertation paper, in a short historical overview of Knowledge Representation structures used over time, I mentioned the Tree of Life representations on stone, ceramic or clay artefacts preserved until now from different cultures, the “arbor porphyriana” or “Porphyrian tree”, genealogical trees dated from 11th century, KRS like representation of Joachim of Fiore [1] or Ramon Llul [2], the Sephirotic Tree central to Jewish tradition, quipas and square of oppositions. Actually, the list of such representation is much bigger; I tried to point only the oldest sources in order to highlight the existence of various such representation techniques. I think that I could have talked more about some representations and add many more examples, though I don’t think it was nor the place and neither the time to do it, for some of them needing to do more research, given their interpretational richness. In the past two weeks I tried to do some research in this direction, I advanced a little in the subject though there is still a long way to go. I realized that for the moment would be impossible to approach the subject in a more structured and professional form, on subjects like the Tree of Life or Sephirotic Tree has been written many books and advanced many theories. As I am interested in the Kabbalistic and Hermetic traditions, some of the mentioned representations were not new to me, their richness of meaning intriguing me, this being also one of the reasons for which I chosen a topic for my dissertation paper related to Knowledge Representation.
The Sephirotic Tree is actually my first meaningful intersection with a KRS, giving it some thought over time, trying to understand the various interpretations, and believe me, there is a whole set of philosophies based on it. As Frater FP highlights, the Sephirotic Tree became a Meta-Map or Meta-Model for a Meta-System “capable of comprehending other systems within itself”, the Seven Rays and Chakra systems, the astrology itself and Tarot being examples of other meta-models [4]. It is actually interesting to study how such models were formed and evolved, unfortunately all we can is to launch in the blue other more or less fantastic theories. In many sources it is advanced the idea that the Jewish Sephirotic Tree derives from the Egyptian or Assyrian/Babylonian Tree of Life, theory proved by the antique artefacts found, though Trees of Life can be met also Indian or Nazca antic cultures, revealing the universality of such a symbol. These various tree representations could have in theory a unique source, though this supposes the existence of an older culture, why not the Atlanteans, though that’s maybe a little too much SF for this post, unlike you are open for such theories. If no such common source exists, then most probably exist something higher, a collective or archetypal consciousness, same as is possible that people arrived independently to the same truths, so there must be a correlation between the tree and the inner/outer world.
Other religious representations are centred on trinity, the various types of crosses and shields of trinity being an example in this direction. The oldest shields of trinity I know of are the ones available in Cotton Faustina and Summa Vitiorum manuscripts from 13th century. A second type of representations was transmitted through the intermediary of seals and even coins, their means being lost in the past.
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| Zodiac [5] | Macrobian cosmic diagram [6] | Chinese chart [7] |
As I previously mentioned, an important amount of knowledge was transmitted in relation to the stars, zodiacs like the ones present in a 6th century synagogue at Beit Alpha, Israel, cosmic diagrams like the Macrobian diagram from 9th century and sky charts like the Chinese one dated to 7th century seems to be common along the time. Such testimonies of the past are again present on all continents in various forms and styles. Now that we are approaching with rapid steps the year 2012, the end of the world or beginning of a new era after some interpreters of Mayan calendar, a hoax for others, based on moon’s natural cycle, the Mayan calendar spans over a range of 5125 years, between 3113 BC and 2012 AD; jumping over interpretations, it remains the beauty and abstractness of Mayan calendar representations.
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| Maya Calendars |
It doesn’t makes sense to talk about Knowledge Representation in antiquity without mentioning, at least roughly, a masterpieces of Chinese thought, I Ching, the Book of Changes. Based on 64 hexagrams rooted in yin and yang principles, it presents a beautiful complex Meta-Model, hard to grasp by most of the mortals, and I’m one of them, at least for now.
References:
1. International Center for Joachimist Studies. (????). Joachim of Fiore. [Online] Available from: http://www.centrostudigioachimiti.it/Gioacchino/GF_Tavoleeng.asp (Accessed: 13 February 2009)
2. Cahill, M.J. 2005. Graphical Languages – History and Uses. Future Knowledge Group. [Online] Available from: http://www.futureknowledge.biz/Graphical%20Languages%20-%20History%20and%20Uses-1.1.pdf (Accessed: 8 January 2008)
3. S. Weigel. ????. Genealogy, On the iconography and rhetorics of an epistemological topos. Enciclopédia e Hipertexto. [Online] Available from: http://www.educ.fc.ul.pt/hyper/resources/sweigel/ (Accessed: 3 July 2009)
4. Frater FP. 2005. The Magician’s Kabbalah. [Online] Available from: http://www.scribd.com/doc/16605805/The-Magicians-Kabbalah (Accessed: 3 July 2009)
5. TutorGig. 2009. Astrology [Online] Available from: http://www.tutorgig.com/ed/Astrology (Accessed: 3 July 2009)
6. Wikipedia. 2009. Flat Earth. [Online] Available from: http://en.wikipedia.org/wiki/Flat_Earth (Accessed: 3 July 2009)
7. KIDIPEDE. 2009. Chinese Astronomy. [Online] Available from: http://www.historyforkids.org/learn/china/science/pictures/starmap.jpg (Accessed: 3 July 2009)
Technology x.0: Finally the Digital Book Reader - Part II
One month is gone and I had a great time playing with my Sony Digital Reader – overall is a nice experience, reading in the evening before falling asleep became actually more pleasant, the reader weighting less than some of the books I’m having in my small library. As often I’m using the laptop only for reading electronic documents, the Reader helped me to reduce the number of hours spent In front of the laptop, and that’s quite a deal considering the huge amount of time I’m spending daily working on computer. The device proved to be also useful while using the medical bike, being much easier to fix it on the bike than a normal book.
Excepting the creation of Knowledge Maps with Digital Readers disscussed in the previous post, on my wish list for future Reader devices and services appeared a few more points appeared since then:
1. A dictionary that would show a definition or synonyms for the highlighted word. The existence of bilingual dictionaries would be a plus, a tool like Babylon on a reading device would be more than appreciated.
2. The possibility to categorize notes, for example in key-words, concepts, quotes, unknown words, etc. This shouldn’t be limited to predefined categories, custom categories could be used in combination with predefined categories; the user for example could assign a set of categories to a set of buttons for faster response, thus not needing to select a category from a list each time the assignment is done.
3. The possibility to save multiple bookmarks – now the device stores the last visited page, great thing, though if for example I click on saved notes, the previous bookmark is lost. This could be covered somehow in point 2, though I considered it deserves a place of its own in my list.
4. Improved view/editing capabilities, right now there are cases in which the Reader fails to select the exact piece of text I want, most probably because of documents’ format, the same could be blame also for the strange display of text when increasing font’s size. This includes cross-page text selections – right now I find it quite difficult to select a text found on two consecutive pages.
It won’t be bad if the files’ name and other metadata could be modified directly in Reader.
5. Internet browsing and the possibility to save content on the local device, for beginning read-only capabilities for simple HTML Web pages would do, though, on the long run, it would be nice if a Digital Reader could dispose of read-write capabilities.
6. A wider digital display to allow at least normal read of small-format books;
7. A longer battery duration - because I’m using the stick to select text, the energy consume is higher, after a few hours being requested to recharge it. I wonder whether solar energy could be used to recharge Reader’s battery…
8. Collaboration between content Vendors, right now vendors like Sony and Amazon providing content only for their products, on one side this strengthen their positions on the Readers’ market, though limits the accessibility to content consumers, market which could prove to be more profitable than the one of the Readers.
9. Global services – I was quite disappointed when I wanted to buy a book and I couldn’t because Sony offers content only for the Canadian and US market. I understand that this is a new market which might not be mature enough, though I think that such Vendors should be a little more aggressive.
10. Processing tools that allow processing the content created with Readers (e.g. Notes), exporting it for example to other types of files,
I see the Digital Reader device playing a more important role in learning, not only simple reading, Reader Based Training (RBT) could have maybe the same impact on users as Computer Based Training (CBT) or Web Based Training (WBT) services, on a Reader being maybe more easier to consume such content.
Excepting the creation of Knowledge Maps with Digital Readers disscussed in the previous post, on my wish list for future Reader devices and services appeared a few more points appeared since then:
1. A dictionary that would show a definition or synonyms for the highlighted word. The existence of bilingual dictionaries would be a plus, a tool like Babylon on a reading device would be more than appreciated.
2. The possibility to categorize notes, for example in key-words, concepts, quotes, unknown words, etc. This shouldn’t be limited to predefined categories, custom categories could be used in combination with predefined categories; the user for example could assign a set of categories to a set of buttons for faster response, thus not needing to select a category from a list each time the assignment is done.
3. The possibility to save multiple bookmarks – now the device stores the last visited page, great thing, though if for example I click on saved notes, the previous bookmark is lost. This could be covered somehow in point 2, though I considered it deserves a place of its own in my list.
4. Improved view/editing capabilities, right now there are cases in which the Reader fails to select the exact piece of text I want, most probably because of documents’ format, the same could be blame also for the strange display of text when increasing font’s size. This includes cross-page text selections – right now I find it quite difficult to select a text found on two consecutive pages.
It won’t be bad if the files’ name and other metadata could be modified directly in Reader.
5. Internet browsing and the possibility to save content on the local device, for beginning read-only capabilities for simple HTML Web pages would do, though, on the long run, it would be nice if a Digital Reader could dispose of read-write capabilities.
6. A wider digital display to allow at least normal read of small-format books;
7. A longer battery duration - because I’m using the stick to select text, the energy consume is higher, after a few hours being requested to recharge it. I wonder whether solar energy could be used to recharge Reader’s battery…
8. Collaboration between content Vendors, right now vendors like Sony and Amazon providing content only for their products, on one side this strengthen their positions on the Readers’ market, though limits the accessibility to content consumers, market which could prove to be more profitable than the one of the Readers.
9. Global services – I was quite disappointed when I wanted to buy a book and I couldn’t because Sony offers content only for the Canadian and US market. I understand that this is a new market which might not be mature enough, though I think that such Vendors should be a little more aggressive.
10. Processing tools that allow processing the content created with Readers (e.g. Notes), exporting it for example to other types of files,
I see the Digital Reader device playing a more important role in learning, not only simple reading, Reader Based Training (RBT) could have maybe the same impact on users as Computer Based Training (CBT) or Web Based Training (WBT) services, on a Reader being maybe more easier to consume such content.
20 June 2009
🔖Knowledge Representation: 3D Maps using 3D TopicScape Pro
Today I took the time and played with 3D TopicScape Pro, a nice 3D tool that can be used for Mind and Concept Mapping. 3D TopicScape Pro together with 3D TopicScape Lite, products of TopicScape, can be run on Windows 2000, XP and Vista.
From a first user experience the look and feel is interesting, the tool is easy to use and has a small learning curve, and it includes a few demos which make the learning process easier. The Landscaped Maps seems to be useful for representing several levels of children, though when the number of children is greater than 4-5, the labels are hard to see. The topics are represented as cones (see Figure 1) and to each topic can be attached up to 10 tags, the flagging of topics as important allows easier visual identification.
Figure 1: Learning Mind Map created with 3D TopicScape Pro
The tool offers multiple views – home, full, top, tag pool and hit list, the later offering an historical list of Map’s elements (see Figure 2). It includes several skins, rich editing and configuring features that add a plus to overall usability.
Figure 2: Hit List for the above Mind Map
Frankly I was expecting more from the tool and personally I prefer the 2D version of the Map (see Figure 3), it is less graphically loaded, and the increase border or text size can be used to obtain the same visual contrast as in landscapes. 2D Maps have the advantage that they can be constructed using Visio or PowerPoint, two of the tools used by many IT professionals and managers.
In exchange, I would use a 3D Map for representing weighted Topics, in which cone's size would be proportional with its weight.
Figure 3: Personal Topicscape, sample 2D Mind Map available with 3D TopicScape Pro
The site offers also a collection of more than 1000 Mind Maps which could give you a feeling what Mind Mapping is about. Actually from the TopicScape’s blog I found the link to a nice source for learning how to make a Mind Map.
From a first user experience the look and feel is interesting, the tool is easy to use and has a small learning curve, and it includes a few demos which make the learning process easier. The Landscaped Maps seems to be useful for representing several levels of children, though when the number of children is greater than 4-5, the labels are hard to see. The topics are represented as cones (see Figure 1) and to each topic can be attached up to 10 tags, the flagging of topics as important allows easier visual identification.
Figure 1: Learning Mind Map created with 3D TopicScape ProThe tool offers multiple views – home, full, top, tag pool and hit list, the later offering an historical list of Map’s elements (see Figure 2). It includes several skins, rich editing and configuring features that add a plus to overall usability.
Figure 2: Hit List for the above Mind MapFrankly I was expecting more from the tool and personally I prefer the 2D version of the Map (see Figure 3), it is less graphically loaded, and the increase border or text size can be used to obtain the same visual contrast as in landscapes. 2D Maps have the advantage that they can be constructed using Visio or PowerPoint, two of the tools used by many IT professionals and managers.
In exchange, I would use a 3D Map for representing weighted Topics, in which cone's size would be proportional with its weight.
Figure 3: Personal Topicscape, sample 2D Mind Map available with 3D TopicScape ProThe site offers also a collection of more than 1000 Mind Maps which could give you a feeling what Mind Mapping is about. Actually from the TopicScape’s blog I found the link to a nice source for learning how to make a Mind Map.
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