Sometimes Why finding entities in Wikipedia is difficult

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sometimes Why finding entities in Wikipedia is difficult is a 2010 journal article by G. Demartini, C. Firan, T. Iofciu, R. Krestel, W. Nejdl and published in Information Retrieval.

[edit] Abstract

Entity Retrieval {(ER)--in} comparison to classical search--aims at finding individual entities instead of relevant documents. Finding a list of entities requires therefore techniques different to classical search engines. In this paper, we present a model to describe entities more formally and how an {ER} system can be build on top of it. We compare different approaches designed for finding entities in Wikipedia and report on results using standard test collections. An analysis of entity-centric queries reveals different aspects and problems related to {ER} and shows limitations of current systems performing {ER} with Wikipedia. It also indicates which approaches are suitable for which kinds of queries.

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