Yi, K.; Beheshti, J.; Cole, C.; Leide, J.E.; Large, A.: User search behavior of domain-specific information retrieval systems : an analysis of the query logs from PsycINFO and ABC-Clio's Historical Abstracts/America: History and Life (2006)
0.01
0.00636322 = product of:
0.01272644 = sum of:
0.01272644 = product of:
0.02545288 = sum of:
0.02545288 = weight(_text_:j in 197) [ClassicSimilarity], result of:
0.02545288 = score(doc=197,freq=2.0), product of:
0.14500295 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.045634337 = queryNorm
0.17553353 = fieldWeight in 197, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0390625 = fieldNorm(doc=197)
0.5 = coord(1/2)
0.5 = coord(1/2)