Experiments on Manual Thesaurus based Query Expansion for Ad-hoc Monolingual Gujarati Information Retrieval Tasks
This addresses retrieval challenges for Gujarati language users, but it is incremental as it applies an existing method to a new domain.
The paper tackled the problem of improving information retrieval for Gujarati text documents by using manual thesaurus-based query expansion, and the result showed that this approach improved recall.
In this paper, we present the experimental work done on Query Expansion (QE) for retrieval tasks of Gujarati text documents. In information retrieval, it is very difficult to estimate the exact user need, query expansion adds terms to the original query, which provides more information about the user need. There are various approaches to query expansion. In our work, manual thesaurus based query expansion was performed to evaluate the performance of widely used information retrieval models for Gujarati text documents. Results show that query expansion improves the recall of text documents.