Tag Archives: Knowledge representation

Tassilo Pellegrini

Topic Maps and the Semantic Web

by , Category: Conferences & Events, Miscellaneous, Tools & Software

tmraFrom November 11 – 13, 2009 this will be one of the big issues at the 5th International Conference on Topic Maps taking place in Leipzig/Germany. When asked about the relationship between TM and SemWeb conference organizer Lutz Maicher says:

With the vision of the web of data Topic Maps and the Semantic Web move closer over time. Anywhere URIs represent subjects, structured statements are gathered around them. In this context I see subj3ct.com as an interesting ventures. This recently launched service provides URIs for 15 million subjects to be used in structured data. Naturally, linked data hubs like dbpedia or geonames.org are part of it. The crowd is invited to contribute to this collection, also the Topic Maps Lab provides several feeds to register new URIs. Subj3ct.com turns out to be an infrastructure technology for Web 3.0 applications, regardless whether they are based on Topic Maps or other Semantic Web technologies.

Through this convergence the uniqueness of each technology sharpens. Reasoning is the strong point of the Semantic Web. But the strength of Topic Maps are semantic portals and the global federation of facts around subjects. Bringing together all and even contradictory information about each subject – and not building reasoning-ready consistent models of the world – is built into the genes of Topic Maps.

Read the full interview here.

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Helmut Nagy

Knowledge Management and the Semantic Web

by , Category: Knowledge Management, Literature & Publications

That’s the title of my diploma thesis and first of all, thanks to SWC for the possibility to say some words about it. My interest in knowledge management reaches back some time now and I decided to make it the subject of my diploma thesis in my first attempt to write one back in 2001. The semantic web “came to me” in the last one or two years and the TRIPLE-I conference last year was somehow the trigger for me to connect the two topics.

My basic idea was very simple. When you read about the Semantic Web you are confronted right away with connections to creating knowledge and knowledge management. But in my understanding the Semantic Web is a technical thing and knowledge management is primarily a cultural and organisational thing. So the research questions for my thesis where:

  • What relevance do knowledge management and semantic technologies have in the daily work of people working in knowledge intensive domains?
  • Which possibilities lie in the adoption of knowledge management and semantic technologies?
  • Are semantic technologies already fit for practical use?

The basis of the empirical part of my thesis are group discussions held in different organisations. As a result I developed starting points for an understanding of the topics “Knowledge Management” and “Semantic Web” and their relevance in organisations. The empirical results, in short, provide the following answers to the research questions:

  • The “theoretical relevance” of both topics is high, the “practical relevance” on the other hand is rather low. Neither do structured concepts for knowledge management exist in the studied organisations, nor are there attempts at using semantic technologies
  • Most of the participants have not heard of the “semantic web” prior to the discussions. After having been introduced to the topic, the relevance of the semantic web and of semantic technologies is rated high
  • Possibilities are seen in a better management of information or knowledge in organisations and, especially for semantic technologies, in the improvement of search functionality’s and search results
  • Semantic technologies are not yet seen as fit for practical use
  • The connection between knowledge management and semantic web is taken as a fact without giving any justification for it.

In my conclusion I tried to match my results with the results of the Semantic Web Barometer 2009 and it was very interesting for me, that there were several similarities. I also found that talking to the people that have to work with technologies that are developed for them can be quite interesting and that group discussion are a great way to do that.

I wrote most parts of my diploma thesis in a wiki (and the rest is available as PDF) so you can find it on my wiki.

Your comments and annotations are very welcome!

Thanks for reading as far as this, Helmut

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Thomas Thurner

1000-and-one pulldowns

by , Category: Internet & Media, Knowledge Management, Search Engines
Personalisation interface
Image by wocrig via Flickr

Luckily, times have come, where semantic search techniques have found their way to enhance knowledge providing theme portals. Nearly once a week a new knowledge portal with built-in semantic search pops up. They deal with environmental issues, health care, economy etc. These sites are good examples how the vision of a knowledge web is fostered by semantic technologies. Such focused approaches are great showcases for “a” semantic web (even if they are not based on “the” RDF semantic web) in the next few months besides general knowledge portals like Wolfram Alpha.

But the potential of these semantic theme portals is often reduced essentially by their bad usability. You get lost in categories and flags – you get puzzled by pulldowns, mouseovers and embedded hierachies – it’s sometimes a mess out off 1001 functions. You need to understand the underpinning semantic concept to get oriented within these applications – and this is not the goal of the exercise. Search has to be easy.

To show the potential of semantic technologies, we need good examples, which offer good usability. This is a call to everyone to provide such examples.

See my favorites:

  • NextBio, a platform that enables life science researchers to search, discover, and share knowledge locked within public and proprietary data
  • reegle, the Search Engine for Renewable Energy and Energy Efficiency
  • CultureSampo, a Finnish cultural heritage platform for institutional organizations as well as private citizens
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Tassilo Pellegrini

loomp supports structured annotation in corporate settings

by , Category: Corporate Semantic Web, Enterprise 2.0, Knowledge Management, Tools & Software

loomp

Markus Luczak-Rösch and his team from FU Berlin have published loomp, a WYSIWYG annotation tool especially designed for inhouse use. loomp is aiming at the Corporate Semantic Web market, providing a semantic application with low entry barriers and high usability designed for non-techies.

When asked about the concrete application area Markus says:

We have found various use cases especially in knowledge and content intense domains. The most interesting one is the journalists use case. Consider journalists which research and write articles and editors which revise and publish the work of journalists.

Journalists research specific topics on demand and access various information sources for this purpose, e.g. websites, books, related articles, and human informants. Only few journalists use digital devices for this task and even fewer apply information management systems. To transfer the finished article to the responsible editor at the publishing house the people use free text documents and email communication. Finally, an editor revises and releases the articles for his department. loomp can help journalists to manage their notes, interview logs, references, addresses, etc. loomp helps to link an article to its information sources.

Read the full interview here.

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