Vague Element Selection and Query Rewriting for XML Retrieval
Vojkan Mihajlović, Djoerd Hiemstra, Henk Ernst Blok, Franciska M. G. de Jong, W. Kraaij · University of Twente Research Information · 2006
In this paper we present the extension of our prototype three-level database system (TIJAH) developed for struc-tured information retrieval. The extension is aimed at mod-eling vague search on XML elements. All three levels (con-ceptual, logical, and physical) of the TIJAH system are enhanced to support vague search concepts. The vague search is implemented as vague selection of XML elements using XML element name expansion lists and rewriting tech-niques. We test the performance of retrieval models us-ing automatically generated expansion lists and compared them with models that use manual ones. The goal is to find the best approach for structured information retrieval with vague structural constraints on element names expressed in the query. 1.