Search (15 results, page 1 of 1)

Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.02

0.021377591 = product of:
  0.042755183 = sum of:
    0.042755183 = product of:
      0.085510366 = sum of:
        0.085510366 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
          0.085510366 = score(doc=3445,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.5416616 = fieldWeight in 3445, 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=3445)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 25. 8.2005 17:42:22

MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.01

0.012215767 = product of:
  0.024431534 = sum of:
    0.024431534 = product of:
      0.04886307 = sum of:
        0.04886307 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
          0.04886307 = score(doc=5108,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.30952093 = fieldWeight in 5108, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=5108)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 20. 1.2007 18:30:22

Losada, D.E.; Barreiro, A.: Emebedding term similarity and inverse document frequency into a logical model of information retrieval (2003) 0.01

0.012215767 = product of:
  0.024431534 = sum of:
    0.024431534 = product of:
      0.04886307 = sum of:
        0.04886307 = weight(_text_:22 in 1422) [ClassicSimilarity], result of:
          0.04886307 = score(doc=1422,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.30952093 = fieldWeight in 1422, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=1422)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 22. 3.2003 19:27:23

Kanaeva, Z.: Ranking: Google und CiteSeer (2005) 0.01

0.010688796 = product of:
  0.021377591 = sum of:
    0.021377591 = product of:
      0.042755183 = sum of:
        0.042755183 = weight(_text_:22 in 3276) [ClassicSimilarity], result of:
          0.042755183 = score(doc=3276,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.2708308 = fieldWeight in 3276, 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=3276)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 20. 3.2005 16:23:22

White, K.J.; Sutcliffe, R.F.E.: Applying incremental tree induction to retrieval : from manuals and medical texts (2006) 0.01
```
0.009856974 = product of:
  0.019713948 = sum of:
    0.019713948 = product of:
      0.039427895 = sum of:
        0.039427895 = weight(_text_:1997 in 5044) [ClassicSimilarity], result of:
          0.039427895 = score(doc=5044,freq=2.0), product of:
            0.1637463 = queryWeight, product of:
              3.6322508 = idf(docFreq=3179, maxDocs=44218)
              0.04508122 = queryNorm
            0.2407865 = fieldWeight in 5044, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.6322508 = idf(docFreq=3179, maxDocs=44218)
              0.046875 = fieldNorm(doc=5044)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
```
Abstract

The Decision Tree Forest (DTF) is an architecture for information retrieval that uses a separate decision tree for each document in a collection. Experiments were conducted in which DTFs working with the incremental tree induction (ITI) algorithm of Utgoff, Berkman, and Clouse (1997) were trained and evaluated in the medical and word processing domains using the Cystic Fibrosis and SIFT collections. Performance was compared with that of a conventional inverted index system (IIS) using a BM25-derived probabilistic matching function. Initial results using DTF were poor compared to those obtained with IIS. We then simulated scenarios in which large quantities of training data were available, by using only those parts of the document collection that were well covered by the data sets. Consequently, the retrieval effectiveness of DTF improved substantially. In one particular experiment, precision and recall for DTF were 0.65 and 0.67 respectively, values that compared favorably with values of 0.49 and 0.56 for IIS.

Crestani, F.; Dominich, S.; Lalmas, M.; Rijsbergen, C.J.K. van: Mathematical, logical, and formal methods in information retrieval : an introduction to the special issue (2003) 0.01

0.009161824 = product of:
  0.018323649 = sum of:
    0.018323649 = product of:
      0.036647297 = sum of:
        0.036647297 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
          0.036647297 = score(doc=1451,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.23214069 = fieldWeight in 1451, 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=1451)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 22. 3.2003 19:27:36

Fan, W.; Fox, E.A.; Pathak, P.; Wu, H.: ¬The effects of fitness functions an genetic programming-based ranking discovery for Web search (2004) 0.01

0.009161824 = product of:
  0.018323649 = sum of:
    0.018323649 = product of:
      0.036647297 = sum of:
        0.036647297 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
          0.036647297 = score(doc=2239,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.23214069 = fieldWeight in 2239, 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=2239)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 31. 5.2004 19:22:06

Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003) 0.01

0.009161824 = product of:
  0.018323649 = sum of:
    0.018323649 = product of:
      0.036647297 = sum of:
        0.036647297 = weight(_text_:22 in 2717) [ClassicSimilarity], result of:
          0.036647297 = score(doc=2717,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.23214069 = fieldWeight in 2717, 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=2717)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 11. 9.2004 17:32:22

Witschel, H.F.: Global term weights in distributed environments (2008) 0.01

0.009161824 = product of:
  0.018323649 = sum of:
    0.018323649 = product of:
      0.036647297 = sum of:
        0.036647297 = weight(_text_:22 in 2096) [ClassicSimilarity], result of:
          0.036647297 = score(doc=2096,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.23214069 = fieldWeight in 2096, 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=2096)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 1. 8.2008 9:44:22

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

0.009161824 = product of:
  0.018323649 = sum of:
    0.018323649 = product of:
      0.036647297 = sum of:
        0.036647297 = weight(_text_:22 in 2419) [ClassicSimilarity], result of:
          0.036647297 = score(doc=2419,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = 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

Campos, L.M. de; Fernández-Luna, J.M.; Huete, J.F.: Implementing relevance feedback in the Bayesian network retrieval model (2003) 0.01

0.009161824 = product of:
  0.018323649 = sum of:
    0.018323649 = product of:
      0.036647297 = sum of:
        0.036647297 = weight(_text_:22 in 825) [ClassicSimilarity], result of:
          0.036647297 = score(doc=825,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.23214069 = fieldWeight in 825, 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=825)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 22. 3.2003 19:30:19

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

0.0076348544 = product of:
  0.015269709 = sum of:
    0.015269709 = product of:
      0.030539418 = sum of:
        0.030539418 = weight(_text_:22 in 1428) [ClassicSimilarity], result of:
          0.030539418 = score(doc=1428,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = 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

0.0076348544 = product of:
  0.015269709 = sum of:
    0.015269709 = product of:
      0.030539418 = sum of:
        0.030539418 = weight(_text_:22 in 56) [ClassicSimilarity], result of:
          0.030539418 = score(doc=56,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = 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

Dominich, S.: Mathematical foundations of information retrieval (2001) 0.01

0.0076348544 = product of:
  0.015269709 = sum of:
    0.015269709 = product of:
      0.030539418 = sum of:
        0.030539418 = weight(_text_:22 in 1753) [ClassicSimilarity], result of:
          0.030539418 = score(doc=1753,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.19345059 = fieldWeight in 1753, 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=1753)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 22. 3.2008 12:26:32

Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.01

0.005344398 = product of:
  0.010688796 = sum of:
    0.010688796 = product of:
      0.021377591 = sum of:
        0.021377591 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
          0.021377591 = score(doc=2509,freq=2.0), product of:
            0.15786676 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04508122 = queryNorm
            0.1354154 = fieldWeight in 2509, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.02734375 = fieldNorm(doc=2509)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source: Electronic library. 22(2004) no.2, S.112-120

Search (15 results, page 1 of 1)

Authors

Languages

Types

Themes

Subjects

Classifications