Ostroff, D.; Shneiderman, B.: Selection devices for user of an electronic encyclopedia : an empirical comparison of four possibilities (1988)
0.00
5.930406E-4 = product of:
0.008302568 = sum of:
0.008302568 = weight(_text_:information in 816) [ClassicSimilarity], result of:
0.008302568 = score(doc=816,freq=2.0), product of:
0.053508412 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.030480823 = queryNorm
0.1551638 = fieldWeight in 816, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=816)
0.071428575 = coord(1/14)
- Source
- Information processing and management. 24(1988), S.665-680