-
Robertson, S.E.: ¬The methodology of information retrieval experiment (1981)
0.00
0.0042019994 = product of:
0.008403999 = sum of:
0.008403999 = product of:
0.016807998 = sum of:
0.016807998 = weight(_text_:e in 3146) [ClassicSimilarity], result of:
0.016807998 = score(doc=3146,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.2540935 = fieldWeight in 3146, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.125 = fieldNorm(doc=3146)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Robertson, S.E.; Thompson, C.L.: ¬An operational evaluation of weighting, ranking and relevance feedback via a front-end system (1987)
0.00
0.0036767495 = product of:
0.007353499 = sum of:
0.007353499 = product of:
0.014706998 = sum of:
0.014706998 = weight(_text_:e in 3858) [ClassicSimilarity], result of:
0.014706998 = score(doc=3858,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.2223318 = fieldWeight in 3858, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.109375 = fieldNorm(doc=3858)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Robertson, S.E.; Walker, S.; Beaulieu, M.: Experimentation as a way of life : Okapi at TREC (2000)
0.00
0.0031514994 = product of:
0.006302999 = sum of:
0.006302999 = product of:
0.012605998 = sum of:
0.012605998 = weight(_text_:e in 6030) [ClassicSimilarity], result of:
0.012605998 = score(doc=6030,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.19057012 = fieldWeight in 6030, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.09375 = fieldNorm(doc=6030)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Beaulieu, M.M.; Gatford, M.; Huang, X.; Robertson, S.E.; Walker, S.; Williams, P.: Okapi an TREC-5 (1997)
0.00
0.0031514994 = product of:
0.006302999 = sum of:
0.006302999 = product of:
0.012605998 = sum of:
0.012605998 = weight(_text_:e in 3097) [ClassicSimilarity], result of:
0.012605998 = score(doc=3097,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.19057012 = fieldWeight in 3097, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.09375 = fieldNorm(doc=3097)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Robertson, S.E.; Walker, S.; Beaulieu, M.: Laboratory experiments with Okapi : participation in the TREC programme (1997)
0.00
0.0018383748 = product of:
0.0036767495 = sum of:
0.0036767495 = product of:
0.007353499 = sum of:
0.007353499 = weight(_text_:e in 2216) [ClassicSimilarity], result of:
0.007353499 = score(doc=2216,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.1111659 = fieldWeight in 2216, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0546875 = fieldNorm(doc=2216)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Robertson, S.E.: ¬The parametric description of retrieval tests : Part I: The basic parameters (1969)
0.00
0.0018383748 = product of:
0.0036767495 = sum of:
0.0036767495 = product of:
0.007353499 = sum of:
0.007353499 = weight(_text_:e in 4155) [ClassicSimilarity], result of:
0.007353499 = score(doc=4155,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.1111659 = fieldWeight in 4155, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0546875 = fieldNorm(doc=4155)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Robertson, S.E.: ¬The parametric description of retrieval tests : Part II: Overall measures (1969)
0.00
0.0018383748 = product of:
0.0036767495 = sum of:
0.0036767495 = product of:
0.007353499 = sum of:
0.007353499 = weight(_text_:e in 4156) [ClassicSimilarity], result of:
0.007353499 = score(doc=4156,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.1111659 = fieldWeight in 4156, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0546875 = fieldNorm(doc=4156)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995)
0.00
0.0018383748 = product of:
0.0036767495 = sum of:
0.0036767495 = product of:
0.007353499 = sum of:
0.007353499 = weight(_text_:e in 6964) [ClassicSimilarity], result of:
0.007353499 = score(doc=6964,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.1111659 = fieldWeight in 6964, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0546875 = fieldNorm(doc=6964)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Robertson, S.E.; Sparck Jones, K.: Simple, proven approaches to text retrieval (1997)
0.00
0.0013131249 = product of:
0.0026262498 = sum of:
0.0026262498 = product of:
0.0052524996 = sum of:
0.0052524996 = weight(_text_:e in 4532) [ClassicSimilarity], result of:
0.0052524996 = score(doc=4532,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.07940422 = fieldWeight in 4532, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0390625 = fieldNorm(doc=4532)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e