Using Knowledge Base Semantics in Context-Aware Entity Linking

Cheikh Brahim El Vaigh 1 François Goasdoué 2 Guillaume Gravier 1 Pascale Sébillot 1
1 LinkMedia - Creating and exploiting explicit links between multimedia fragments
Inria Rennes – Bretagne Atlantique , IRISA-D6 - MEDIA ET INTERACTIONS
2 SHAMAN - Symbolic and Human-centric view of dAta MANagement
IRISA-D7 - GESTION DES DONNÉES ET DE LA CONNAISSANCE
Abstract : Entity linking is a core task in textual document processing, which consists in identifying the entities of a knowledge base (KB) that are mentioned in a text. Approaches in the literature consider either independent linking of individual mentions or collective linking of all mentions. Regardless of this distinction, most approaches rely on the Wikipedia encyclopedic KB in order to improve the linking quality, by exploiting its entity descriptions (web pages) or its entity interconnections (hyperlink graph of web pages). In this paper, we devise a novel collective linking technique which departs from most approaches in the literature by relying on a structured RDF KB. This allows exploiting the semantics of the interrelationships that candidate entities may have at disambiguation time rather than relying on raw structural approximation based on Wikipedia’s hyperlink, graph. The few approaches that also use an RDF KB simply rely on the existence of a relation between the candidate entities to which mentions may be linked. Instead, we weight such relations based on ùthe RDF KB structure and propose an efficient decoding strategy for collective linking. Experiments on standard benchmarks show significant improvement over the state of the art.
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Cheikh Brahim El Vaigh, François Goasdoué, Guillaume Gravier, Pascale Sébillot. Using Knowledge Base Semantics in Context-Aware Entity Linking. DocEng 2019 - 19th ACM Symposium on Document Engineering, Sep 2019, Berlin, Germany. pp.1-10, ⟨10.1007/978-3-030-27520-4_8⟩. ⟨hal-02171981⟩

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