TIJAH at INEX 2004 - Modeling Phrases and Relevance Feedback


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Mihajlovic, Vojkan and Ramirez, Georgina and Vries de, Arjen P. and Hiemstra, Djoerd and Blok, Henk Ernst (2005) TIJAH at INEX 2004 - Modeling Phrases and Relevance Feedback. In: Third International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2004, 6-8 December 2004, Dagstuhl, Germany.

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Abstract:This paper discusses our participation in INEX using the TIJAH XML-IR system. We have enriched the TIJAH system, which follows a standard layered database architecture, with several new features. An extensible conceptual level processing unit has been added to the system. The algebra on the logical level and the implementation on the physical level have been extended to support phrase search and structural relevance feedback. The conceptual processing unit is capable of rewriting NEXI content-only and content-and-structure queries into the internal form, based on the retrieval model parameter specification, that is either predefined or based on relevance feedback. Relevance feedback parameters are produced based on the data fusion of result element score values and sizes, and relevance assessments. The introduction of new operators supporting phrase search in score region algebra on the logical level is discussed in the paper, as well as their implementation on the physical level using the pre-post numbering scheme. The framework for structural relevance feedback is also explained in the paper. We conclude with a preliminary analysis of the system performance based on INEX 2004 runs.
Item Type:Conference or Workshop Item
Copyright:© 2005 Springer
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/63515
Official URL:http://dx.doi.org/10.1007/11424550_22
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