Specificity

Jovan Pehcevski (1) , Benjamin Piwowarski (2)

1 AxIS - Usage-centered design, analysis and improvement of information systems
2 Yahoo! Labs Latin America

Specificity is a relevance dimension that describes the extent to which a document part focuses on the topic of request. In the context of semi-structured text (XML) retrieval, a document part corresponds to an XML element. Specificity is defined as the length ratio, typically in number of characters, of contained relevant to irrelevant text in the document part. Different Specificity values can be associated to a document part. These values are drawn from the Specificity relevance scale, which has evolved from a discrete multi-graded relevance scale to a continuous relevance scale.

Domaines: Recherche d'information [cs.IR]

Jovan Pehcevski, Benjamin Piwowarski. Specificity. Ling Liu and M. Tamer Özsu. Encyclopedia of Database Systems, Springer-Verlag, 2007. ⟨inria-00174155⟩