-
Sparck Jones, K.: Search term relevance weighting given little relevance information (1979)
0.03
0.030201826 = product of:
0.060403652 = sum of:
0.060403652 = product of:
0.120807305 = sum of:
0.120807305 = weight(_text_:k in 1939) [ClassicSimilarity], result of:
0.120807305 = score(doc=1939,freq=4.0), product of:
0.180489 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.050560288 = queryNorm
0.66933334 = fieldWeight in 1939, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.09375 = fieldNorm(doc=1939)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.329-338.
-
Sparck Jones, K.: ¬A statistical interpretation of term specifity and its application in retrieval (1972)
0.03
0.028474558 = product of:
0.056949116 = sum of:
0.056949116 = product of:
0.11389823 = sum of:
0.11389823 = weight(_text_:k in 5187) [ClassicSimilarity], result of:
0.11389823 = score(doc=5187,freq=2.0), product of:
0.180489 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.050560288 = queryNorm
0.63105357 = fieldWeight in 5187, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.125 = fieldNorm(doc=5187)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Robertson, S.E.: ¬The probability ranking principle in IR (1977)
0.02
0.021355918 = product of:
0.042711835 = sum of:
0.042711835 = product of:
0.08542367 = sum of:
0.08542367 = weight(_text_:k in 1935) [ClassicSimilarity], result of:
0.08542367 = score(doc=1935,freq=2.0), product of:
0.180489 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.050560288 = queryNorm
0.47329018 = fieldWeight in 1935, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.09375 = fieldNorm(doc=1935)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willet. San Francisco: Morgan Kaufmann 1997. S.281-286.