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Query expansion (QE) is one of the most important mechanisms in the information retrieval field. A typical QE method usually redefines the query with related terms. These techniques suffer from retrieval performance degradation due to imprecise choice of query's additive terms in the QE process. Semantic expansion is proposed to improve query precision, while the expansion concept is hard to be obtained...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.