Abstract
Presentation from Wikiconference focuses on the most important characteristics and possibilities of usage of encyclopedia Wikipedia’s categorial system (folksonomy). The first section provides basic similarities and differences between Wikipedia’s categorial system and Wikipedia as a whole.
The following part provides a list of important similarities and differences between Wikipedia’s categorial system and systems of classification of information created by experts. The final part of the presentation deals with the differences in the usage of Wikipedia’s categorial system and systems of classification of information created by experts with focus on the importance of Wikipedia’s categorial system for the purpose of building the semantic web.
Some problematic issues of categorization of content in Czech and English versions of Wikipedia are demonstrated through concrete examples of screen shots.