Boer, V. de; Porter, A.L.; Someren, M. v.: Extracting historical time periods from the Web (2010)
0.00
0.0038203069 = product of:
0.019101534 = sum of:
0.019101534 = weight(_text_:m in 3988) [ClassicSimilarity], result of:
0.019101534 = score(doc=3988,freq=2.0), product of:
0.09925137 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.039884835 = queryNorm
0.19245613 = fieldWeight in 3988, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0546875 = fieldNorm(doc=3988)
0.2 = coord(1/5)
