Ostroff, D.; Shneiderman, B.: Selection devices for user of an electronic encyclopedia : an empirical comparison of four possibilities (1988)
0.00
7.915163E-4 = product of:
0.0015830325 = sum of:
0.0015830325 = product of:
0.0047490974 = sum of:
0.0047490974 = weight(_text_:s in 816) [ClassicSimilarity], result of:
0.0047490974 = score(doc=816,freq=2.0), product of:
0.049418733 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04545348 = queryNorm
0.09609913 = fieldWeight in 816, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0625 = fieldNorm(doc=816)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Source
- Information processing and management. 24(1988), S.665-680