Abstract

To fulfill its ambitious promises, Semantic Web needs practical and accessible tools for collective knowledge engineering. Recent developments in the area of semantic wikis show how such tools can be built. However, existing semantic wikis implementations have both conceptual and technological limitations. These limitations are in the areas of knowledge representation, strong reasoning as well as appropriate user interfaces. In this paper a proposal of a new semantic wiki is presented. Loki uses a coherent logic-based representation for semantic annotations of the content. The same representation is used for implementing reasoning procedures. The representation uses the logic programming paradigm and the Prolog programming language. The proposed architecture allows for rule-based reasoning in the wiki. It also provides a compatibility layer with the popular Semantic MediaWiki (SMW) platform, directly parsing its annotations. In the paper a prototype implementation called PlWiki is described, and a practical use case is given

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