Search (7 results, page 1 of 1)

Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02

0.024513958 = product of:
  0.049027916 = sum of:
    0.049027916 = product of:
      0.09805583 = sum of:
        0.09805583 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
          0.09805583 = score(doc=2134,freq=2.0), product of:
            0.18102784 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051695216 = queryNorm
            0.5416616 = fieldWeight in 2134, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=2134)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 30. 3.2001 13:32:22

Efthimiadis, E.N.: Interactive query expansion : a user-based evaluation in a relevance feedback environment (2000) 0.01

0.014830641 = product of:
  0.029661283 = sum of:
    0.029661283 = product of:
      0.059322566 = sum of:
        0.059322566 = weight(_text_:2000 in 5701) [ClassicSimilarity], result of:
          0.059322566 = score(doc=5701,freq=5.0), product of:
            0.20949209 = queryWeight, product of:
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.051695216 = queryNorm
            0.2831733 = fieldWeight in 5701, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.0524464 = idf(docFreq=2088, maxDocs=44218)
              0.03125 = fieldNorm(doc=5701)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Journal of the American Society for Information Science. 51(2000) no.11, S.989-1003
Year: 2000

Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.01

0.012256979 = product of:
  0.024513958 = sum of:
    0.024513958 = product of:
      0.049027916 = sum of:
        0.049027916 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
          0.049027916 = score(doc=1319,freq=2.0), product of:
            0.18102784 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051695216 = queryNorm
            0.2708308 = fieldWeight in 1319, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1319)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 1. 8.1996 22:08:06

Klas, C.-P.; Fuhr, N.; Schaefer, A.: Evaluating strategic support for information access in the DAFFODIL system (2004) 0.01

0.010505982 = product of:
  0.021011963 = sum of:
    0.021011963 = product of:
      0.042023927 = sum of:
        0.042023927 = weight(_text_:22 in 2419) [ClassicSimilarity], result of:
          0.042023927 = score(doc=2419,freq=2.0), product of:
            0.18102784 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051695216 = queryNorm
            0.23214069 = fieldWeight in 2419, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=2419)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 16.11.2008 16:22:48

Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.01

0.008754985 = product of:
  0.01750997 = sum of:
    0.01750997 = product of:
      0.03501994 = sum of:
        0.03501994 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
          0.03501994 = score(doc=5697,freq=2.0), product of:
            0.18102784 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051695216 = queryNorm
            0.19345059 = fieldWeight in 5697, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5697)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 22. 2.1996 13:14:10

Song, D.; Bruza, P.D.: Towards context sensitive information inference (2003) 0.01

0.008754985 = product of:
  0.01750997 = sum of:
    0.01750997 = product of:
      0.03501994 = sum of:
        0.03501994 = weight(_text_:22 in 1428) [ClassicSimilarity], result of:
          0.03501994 = score(doc=1428,freq=2.0), product of:
            0.18102784 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051695216 = queryNorm
            0.19345059 = fieldWeight in 1428, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1428)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 22. 3.2003 19:35:46

Shiri, A.A.; Revie, C.: Query expansion behavior within a thesaurus-enhanced search environment : a user-centered evaluation (2006) 0.01

0.008754985 = product of:
  0.01750997 = sum of:
    0.01750997 = product of:
      0.03501994 = sum of:
        0.03501994 = weight(_text_:22 in 56) [ClassicSimilarity], result of:
          0.03501994 = score(doc=56,freq=2.0), product of:
            0.18102784 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051695216 = queryNorm
            0.19345059 = fieldWeight in 56, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=56)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 22. 7.2006 16:32:43

Search (7 results, page 1 of 1)

Authors

Years

Themes