Perzylo, L.; Oliver, R.: ¬An investigation of children's use of a multimedia CD-ROM product for information retrieval (1992)
0.02
0.016126266 = product of:
0.059129637 = sum of:
0.007929806 = weight(_text_:a in 420) [ClassicSimilarity], result of:
0.007929806 = score(doc=420,freq=4.0), product of:
0.03143891 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.02726594 = queryNorm
0.25222903 = fieldWeight in 420, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.109375 = fieldNorm(doc=420)
0.0462144 = weight(_text_:r in 420) [ClassicSimilarity], result of:
0.0462144 = score(doc=420,freq=2.0), product of:
0.09025731 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.02726594 = queryNorm
0.51202947 = fieldWeight in 420, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.109375 = fieldNorm(doc=420)
0.004985428 = weight(_text_:s in 420) [ClassicSimilarity], result of:
0.004985428 = score(doc=420,freq=2.0), product of:
0.029644554 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.02726594 = queryNorm
0.16817348 = fieldWeight in 420, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=420)
0.27272728 = coord(3/11)
- Source
- Microcomputers for information management. 9(1992) no.4, S.225-240
- Type
- a
