Seminar: Semantic Search on the Web. Held by Thomas Lukasiewicz Oxford University

Seminar: Semantic Search on the Web. Held by Thomas Lukasiewicz, Oxford University - Computing Laboratory (Aula 2 DEE, 29-07-10 h. 15.00)

Many experts predict that the next huge step forward in Web information technology will be achieved by adding semantics to Web data, and will possibly consist of (some form of) the Semantic Web. In this talk, I will present a novel approach to semantic search on the Web, which al-lows for a semantic processing of Web search queries, and for evaluating complex Web search queries that in-volve reasoning over the Web. More specifically, one first adds ontological structure and semantics to Web pages, which then allows for both attaching a meaning to Web search queries and Web pages, and for formulating and processing ontology-based complex Web search queries (i.e., conjunctive queries) that involve reasoning over the Web. This semantic search on the Web is then realized by reduction to standard Web search on standard Web pages and logically completed ontological annotations. That is, standard Web search engines are used as the main inference motor for ontology-based Semantic Web search. I will talk about the formal model behind this ap-proach and about the implementation and experiments in desktop search. The talk reports on joint work with Bettina Fazzinga, Giorgio Gianforme, and Georg Gottlob.

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