-
Sparck Jones, K.: Automatic keyword classification for information retrieval (1971)
0.01
0.014702573 = product of:
0.04410772 = sum of:
0.04410772 = product of:
0.13232316 = sum of:
0.13232316 = weight(_text_:k in 5176) [ClassicSimilarity], result of:
0.13232316 = score(doc=5176,freq=2.0), product of:
0.16774888 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.046991404 = queryNorm
0.7888169 = fieldWeight in 5176, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.15625 = fieldNorm(doc=5176)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Sparck Jones, K.; Tait, J.I.: Automatic search term variant generation (1984)
0.01
0.01176206 = product of:
0.03528618 = sum of:
0.03528618 = product of:
0.105858535 = sum of:
0.105858535 = weight(_text_:k in 2918) [ClassicSimilarity], result of:
0.105858535 = score(doc=2918,freq=2.0), product of:
0.16774888 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.046991404 = queryNorm
0.63105357 = fieldWeight in 2918, 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=2918)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Sparck Jones, K.; Jackson, D.M.: ¬The use of automatically obtained keyword classification for information retrieval (1970)
0.01
0.01176206 = product of:
0.03528618 = sum of:
0.03528618 = product of:
0.105858535 = sum of:
0.105858535 = weight(_text_:k in 5177) [ClassicSimilarity], result of:
0.105858535 = score(doc=5177,freq=2.0), product of:
0.16774888 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.046991404 = queryNorm
0.63105357 = fieldWeight in 5177, 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=5177)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Sparck Jones, K.: Index term weighting (1973)
0.01
0.01176206 = product of:
0.03528618 = sum of:
0.03528618 = product of:
0.105858535 = sum of:
0.105858535 = weight(_text_:k in 5491) [ClassicSimilarity], result of:
0.105858535 = score(doc=5491,freq=2.0), product of:
0.16774888 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.046991404 = queryNorm
0.63105357 = fieldWeight in 5491, 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=5491)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Needham, R.M.; Sparck Jones, K.: Keywords and clumps (1985)
0.00
0.0025729504 = product of:
0.0077188513 = sum of:
0.0077188513 = product of:
0.023156554 = sum of:
0.023156554 = weight(_text_:k in 3645) [ClassicSimilarity], result of:
0.023156554 = score(doc=3645,freq=2.0), product of:
0.16774888 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.046991404 = queryNorm
0.13804297 = fieldWeight in 3645, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.02734375 = fieldNorm(doc=3645)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)