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A pilot study of a predicate-based vector space model for a biomedical search engine

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3 Author(s)
Myungjae Kwak ; Sch. of Inf. Technol., Macon State Coll., Macon, GA, USA ; Leroy, G. ; Martinez, J.D.

A search engine that supports finding precise biomedical statements, but also complementary, and contrasting information would greatly help biomedical researchers. We propose the use of predicates in a search engine's underlying data structure to accomplish this. A predicate is a triple that combines two phrases with a predicate. We report on the development and evaluation of a search engine that includes the predicates in its underlying data structure. The evaluation of the search engine was conducted by comparing three different approaches: keyword-based search, triple-based search, and an additive search that combines keywords and predicates. Cancer researchers provided the queries, relevant to their ongoing work, and evaluated the outcome in a double-blind fashion. The results showed that the combined approach, which combines triple-based and keyword-based approaches, always outperformed the 2 other approaches.

Published in:

Bioinformatics and Biomedicine Workshops (BIBMW), 2011 IEEE International Conference on

Date of Conference:

12-15 Nov. 2011

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