Agata, T.: ¬A measure for evaluating search engines on the World Wide Web : retrieval test with ESL (Expected Search Length) (1997)
0.09
0.0912312 = product of:
0.24328318 = sum of:
0.07977238 = weight(_text_:world in 3892) [ClassicSimilarity], result of:
0.07977238 = score(doc=3892,freq=2.0), product of:
0.15653811 = queryWeight, product of:
3.8436708 = idf(docFreq=2573, maxDocs=44218)
0.040726203 = queryNorm
0.50960356 = fieldWeight in 3892, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8436708 = idf(docFreq=2573, maxDocs=44218)
0.09375 = fieldNorm(doc=3892)
0.10600255 = weight(_text_:wide in 3892) [ClassicSimilarity], result of:
0.10600255 = score(doc=3892,freq=2.0), product of:
0.18044797 = queryWeight, product of:
4.4307585 = idf(docFreq=1430, maxDocs=44218)
0.040726203 = queryNorm
0.5874411 = fieldWeight in 3892, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4307585 = idf(docFreq=1430, maxDocs=44218)
0.09375 = fieldNorm(doc=3892)
0.057508253 = weight(_text_:web in 3892) [ClassicSimilarity], result of:
0.057508253 = score(doc=3892,freq=2.0), product of:
0.13291039 = queryWeight, product of:
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.040726203 = queryNorm
0.43268442 = fieldWeight in 3892, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2635105 = idf(docFreq=4597, maxDocs=44218)
0.09375 = fieldNorm(doc=3892)
0.375 = coord(3/8)
