HyREX at INEX 2003

In this paper, we describe two new approaches for processing INEX queries. For CO queries, we adopt Amati’s divergence from randomness approach (aka language model) and extend it by an additional factor for considering the hierarchical level of the element to be retrieved. For CAS queries, we investigate several mappings from INEX queries to our query language XIRQL, where we tried to introduce different degrees of vagueness. Both approaches yield good retrieval results, but still leave room for improvement.


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