-
Wolfram, D.; Dimitroff, A.: Hypertext vs. Boolean-based searching in a bibliographic database environment : a direct comparison of searcher performance (1998)
0.01
0.009717386 = product of:
0.019434772 = sum of:
0.019434772 = product of:
0.029152157 = sum of:
0.021960331 = weight(_text_:d in 6436) [ClassicSimilarity], result of:
0.021960331 = score(doc=6436,freq=2.0), product of:
0.0871823 = queryWeight, product of:
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.045888513 = queryNorm
0.2518898 = fieldWeight in 6436, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.09375 = fieldNorm(doc=6436)
0.0071918257 = weight(_text_:s in 6436) [ClassicSimilarity], result of:
0.0071918257 = score(doc=6436,freq=2.0), product of:
0.049891718 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.045888513 = queryNorm
0.14414869 = fieldWeight in 6436, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.09375 = fieldNorm(doc=6436)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Source
- Information processing and management. 34(1998) no.6, S.669-679
-
Wolfram, D.; Volz, A.; Dimitroff, A.: ¬The effect of linkage structure on retrieval performance in a hypertext-based bibliographic retrieval system (1996)
0.01
0.0056684753 = product of:
0.011336951 = sum of:
0.011336951 = product of:
0.017005425 = sum of:
0.012810193 = weight(_text_:d in 6622) [ClassicSimilarity], result of:
0.012810193 = score(doc=6622,freq=2.0), product of:
0.0871823 = queryWeight, product of:
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.045888513 = queryNorm
0.14693572 = fieldWeight in 6622, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.0546875 = fieldNorm(doc=6622)
0.004195232 = weight(_text_:s in 6622) [ClassicSimilarity], result of:
0.004195232 = score(doc=6622,freq=2.0), product of:
0.049891718 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.045888513 = queryNorm
0.08408674 = fieldWeight in 6622, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0546875 = fieldNorm(doc=6622)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Source
- Information processing and management. 32(1996) no.5, S.529-541
-
Wolfram, D.; Dimitroff, A.: Preliminary findings on searcher performance and perceptions of performance in a hypertext bibliographic retrieval system (1997)
0.01
0.0056684753 = product of:
0.011336951 = sum of:
0.011336951 = product of:
0.017005425 = sum of:
0.012810193 = weight(_text_:d in 1857) [ClassicSimilarity], result of:
0.012810193 = score(doc=1857,freq=2.0), product of:
0.0871823 = queryWeight, product of:
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.045888513 = queryNorm
0.14693572 = fieldWeight in 1857, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.0546875 = fieldNorm(doc=1857)
0.004195232 = weight(_text_:s in 1857) [ClassicSimilarity], result of:
0.004195232 = score(doc=1857,freq=2.0), product of:
0.049891718 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.045888513 = queryNorm
0.08408674 = fieldWeight in 1857, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0546875 = fieldNorm(doc=1857)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science. 48(1997) no.12, S.1142-1145
-
Dimitroff, A.; Wolfram, D.; Volz, A.: Affective response and retrieval performance : analysis of contributing factors (1996)
0.00
0.004858693 = product of:
0.009717386 = sum of:
0.009717386 = product of:
0.014576078 = sum of:
0.010980166 = weight(_text_:d in 164) [ClassicSimilarity], result of:
0.010980166 = score(doc=164,freq=2.0), product of:
0.0871823 = queryWeight, product of:
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.045888513 = queryNorm
0.1259449 = fieldWeight in 164, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.046875 = fieldNorm(doc=164)
0.0035959128 = weight(_text_:s in 164) [ClassicSimilarity], result of:
0.0035959128 = score(doc=164,freq=2.0), product of:
0.049891718 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.045888513 = queryNorm
0.072074346 = fieldWeight in 164, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=164)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Source
- Library and information science research. 18(1996) no.2, S.121-132