Istituto di Scienza e Tecnologie dell'Informazione     
Trani S., Ceccarelli D., De Francesco A., Perego R., Segala M., Tonellotto N. Entity linking on philosophical documents. In: IIR 2015 - Italian Information Retrieval Workshop (Cagliari, Italy, 25-26 May 2015). Atti, article n. 12. Paolo Boldi, Reffaele Perego, Fabrizio Sebastiani (eds.). (CEUR Workshop Proceedings, vol. 1404). CEUR-WS.org, 2015.
Entity Linking consists in automatically enriching a docu- ment by detecting the text fragments mentioning a given entity in an external knowledge base, e.g., Wikipedia. This problem is a hot research topic due to its impact in several text-understanding related tasks. How- ever, its application to some specific, restricted topic domains has not received much attention. In this work we study how we can improve entity linking performance by exploiting a domain-oriented knowledge base, obtained by filtering out from Wikipedia the entities that are not relevant for the target do- main. We focus on the philosophical domain, and we experiment a com- bination of three diā†µerent entity filtering approaches: one based on the "Philosophy" category of Wikipedia, and two based on similarity metrics between philosophical documents and the textual description of the enti- ties in the knowledge base, namely cosine similarity and Kullback-Leibler divergence. We apply traditional entity linking strategies to the domain- oriented knowledge base obtained with these filtering techniques. Finally, we use the resulting enriched documents to conduct a preliminary user study with an expert in the area.
URL: http://ceur-ws.org/Vol-1404/
Subject Entity linking
Semantic enrichment
Entity filtering
H.3.3 Information Search and Retrieval

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