Tuesday, December 13, 2011

Wikimania 2011 - Semantic, better wikis (English)

Towards a Semantic Wikipedia
Zdenko Vrande i (User:Denny), Denny Vrandecic, Yaron Koren, Daniel Kinzler
Semantic MediaWiki (SMW) is a free, open-source extension
to MediaWiki -- the wiki software that powers Wikipedia --
that lets you store and query data within the wiki's pages. It is
also a full-fledged framework, in conjunction with many spinoff
extensions, which can turn a wiki into a powerful and flexible
"collaborative database". We will give a quick introduction in
the concepts behind Semantic MediaWiki, and provide a few
example use cases demonstrating the power of the technology.


There is short exert below.
Ниже есть продолжение.

Semantic MediaWiki (SMW) is an extension of MediaWiki – the wiki application best known for powering Wikipedia – that helps to search, organise, tag, browse, evaluate, and share the wiki's content. While traditional wikis contain only text which computers can neither understand nor evaluate, SMW adds semantic annotations that allow a wiki to function as a collaborative database. Semantic MediaWiki was first released in 2005...

Wikis have become a great tool for collecting and sharing knowledge in communities. This knowledge is mostly contained within texts and multimedia files, and is thus easily accessible for human readers. But though wikis are very good for storing and retrieving individual facts, they are less useful for getting queried or aggregated information. As a simple example, consider the following question:

«What are the hundred world-largest cities with a female mayor?»

Wikipedia should be able to provide the answer: it contains all large cities, their mayors, and articles about the mayor that tell us about their gender. Yet the question is almost impossible to answer for a human, since one would have to read all articles about all large cities first! Even if the answer is found, it might not remain valid for very long. Computers can deal with large datasets much easier, yet they are not able to support us very much when seeking answers from a wiki: Even sophisticated programs cannot yet read and «understand» human-language texts unless the topic and language of the text is very restricted. The wiki's keyword search does not help either.

Semantic MediaWiki enables wikis to make their knowledge computer-processable, e.g. to answer the above question.


UPDATE 18-12-2011:
See also:

Wikimania 2011 - Testing for MediaWiki
Scheduled Lectured with link to youtube
Youtube list: Wikimania 2011
List: Wikimania 2011 posts

UPDATE 11-05-2013:
The Semantic Web - An Overview
Wake-up Discussion: The End of the Semantic Web?

UPDATE 17-02-2013:
The Semantic Web - Raising of the Dead?
Wikidata: Wikimedia going structured data
Wikimania 2011 - Semantic, better wikis
Google's Semantic Search
Wikimania 2011 - Testing for MediaWiki

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