Relevance Feedback Based Query Expansion Model Using Borda Count and Semantic Similarity Approach

Table 1

Summary of used datasets and query numbers.

Datasets	Task	Queries	Docs	Number of unique terms	Average document length
TREC-3 (disks 1 and 2)	Ad hoc	151–200	7,41,856	14,83,71,200	349
FIRE	Ad hoc	126–175	4,56,329	6,27,56,468	273