Natural language information retrieval: TREC-8 report

Strzalkowski, Tomek and Perez-Carballo, Jose and Karlgren, Jussi and Hulth, Anette and Tapanainen, Pasi and Lahtinen, TImo (1999) Natural language information retrieval: TREC-8 report. In: Eighth Text REtrieval Conference (TREC-8), November 1999, Gaithersburg, Maryland.

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This report describes the adhoc experiments performed by the GE/Rutgers/SICS/SU/Conexor team in the context of TREC-8. The research efforts went in four directions: 1. As in previous years, we performed a full linguistic analysis of the entire corpus, and used the re- sults of the analysis to provide index terms on a higher level of abstraction than can be provided by stems alone. 2. We made use of two different query expansion techniques, one automatic and one manual, both de- veloped for TREC-8. 3. The various analysis models were combined using a stream model architecture, where each stream represents an alternative text indexing method, and the stream's various overlapping knowledge was merged using a new merging algorithm derived from first principles. 4. The entire text was analyzed for various stylistic items. Due to the distributed approach, this years’ research efforts partly canceled out each other. New ex- periments in every step of the process did not result in an overwhelming overall result. We are able to determine that the manual query expansion technique developed at General Electric performed very well.

Item Type:Conference or Workshop Item (Paper)
ID Code:2884
Deposited By:SICS Adminstrator
Deposited On:21 May 2008
Last Modified:18 Nov 2009 16:14

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