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In this paper, we present the experimental work done on Query Expansion (QE)for retrieval tasks of Gujarati text documents. In information retrieval, it isvery difficult to estimate the exact user need, query expansion adds terms tothe original query, which provides more information about the user need. Thereare various approaches to query expansion. In our work, manual thesaurus basedquery expansion was performed to evaluate the performance of widely usedinformation retrieval models for Gujarati text documents. Results show thatquery expansion improves the recall of text documents.

Experiments on Manual Thesaurus based Query Expansion for Ad-hoc Monolingual Gujarati Information Retrieval Tasks