A Taxonomy and Survey of Semantic Approaches for Query Expansion. - Muhammad Ahsan Raza; Rahmah Mokhtar; Noraziah Ahmad; Maruf Pasha; Urooj Pasha (IEEE Access, 2019)

A survey of statistical approaches for query expansion. - Muhammad Ahsan Raza; Rahmah Mokhtar; Noraziah Ahmad (Knowl. Inf. Syst., 2019)