-
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)
-
Sparck Jones, K.: IDF term weighting and IR research lessons (2004)
0.02
0.017796598 = product of:
0.035593197 = sum of:
0.035593197 = product of:
0.07118639 = sum of:
0.07118639 = weight(_text_:k in 4422) [ClassicSimilarity], result of:
0.07118639 = score(doc=4422,freq=2.0), product of:
0.180489 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.050560288 = queryNorm
0.39440846 = fieldWeight in 4422, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.078125 = fieldNorm(doc=4422)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Sparck Jones, K.: ¬A statistical interpretation of term specificity and its application in retrieval (2004)
0.01
0.012457619 = product of:
0.024915239 = sum of:
0.024915239 = product of:
0.049830478 = sum of:
0.049830478 = weight(_text_:k in 4420) [ClassicSimilarity], result of:
0.049830478 = score(doc=4420,freq=2.0), product of:
0.180489 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.050560288 = queryNorm
0.27608594 = fieldWeight in 4420, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0546875 = fieldNorm(doc=4420)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Robertson, S.E.; Sparck Jones, K.: Simple, proven approaches to text retrieval (1997)
0.01
0.008898299 = product of:
0.017796598 = sum of:
0.017796598 = product of:
0.035593197 = sum of:
0.035593197 = weight(_text_:k in 4532) [ClassicSimilarity], result of:
0.035593197 = score(doc=4532,freq=2.0), product of:
0.180489 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.050560288 = queryNorm
0.19720423 = fieldWeight in 4532, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=4532)
0.5 = coord(1/2)
0.5 = coord(1/2)