Search (89 results, page 5 of 5)

0.0020133762 = product of:
  0.01610701 = sum of:
    0.01610701 = product of:
      0.03221402 = sum of:
        0.03221402 = weight(_text_:22 in 1736) [ClassicSimilarity], result of:
          0.03221402 = score(doc=1736,freq=2.0), product of:
            0.13876937 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03962768 = queryNorm
            0.23214069 = fieldWeight in 1736, 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=1736)
      0.5 = coord(1/2)
  0.125 = coord(1/8)

Date

22. 9.2014 19:00:13

0.0016778135 = product of:
  0.013422508 = sum of:
    0.013422508 = product of:
      0.026845016 = sum of:
        0.026845016 = weight(_text_:22 in 5282) [ClassicSimilarity], result of:
          0.026845016 = score(doc=5282,freq=2.0), product of:
            0.13876937 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03962768 = queryNorm
            0.19345059 = fieldWeight in 5282, 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=5282)
      0.5 = coord(1/2)
  0.125 = coord(1/8)

Date

22. 7.2006 16:46:36

0.0016778135 = product of:
  0.013422508 = sum of:
    0.013422508 = product of:
      0.026845016 = sum of:
        0.026845016 = weight(_text_:22 in 1022) [ClassicSimilarity], result of:
          0.026845016 = score(doc=1022,freq=2.0), product of:
            0.13876937 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03962768 = queryNorm
            0.19345059 = fieldWeight in 1022, 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=1022)
      0.5 = coord(1/2)
  0.125 = coord(1/8)

Date

26.12.2007 20:22:11

0.0016778135 = product of:
  0.013422508 = sum of:
    0.013422508 = product of:
      0.026845016 = sum of:
        0.026845016 = weight(_text_:22 in 4793) [ClassicSimilarity], result of:
          0.026845016 = score(doc=4793,freq=2.0), product of:
            0.13876937 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03962768 = queryNorm
            0.19345059 = fieldWeight in 4793, 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=4793)
      0.5 = coord(1/2)
  0.125 = coord(1/8)

Source

Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly

0.0016778135 = product of:
  0.013422508 = sum of:
    0.013422508 = product of:
      0.026845016 = sum of:
        0.026845016 = weight(_text_:22 in 2834) [ClassicSimilarity], result of:
          0.026845016 = score(doc=2834,freq=2.0), product of:
            0.13876937 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03962768 = queryNorm
            0.19345059 = fieldWeight in 2834, 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=2834)
      0.5 = coord(1/2)
  0.125 = coord(1/8)

Source

Knowledge organization. 43(2016) no.1, S.22-34

0.0016608563 = product of:
  0.01328685 = sum of:
    0.01328685 = product of:
      0.0265737 = sum of:
        0.0265737 = weight(_text_:area in 6299) [ClassicSimilarity], result of:
          0.0265737 = score(doc=6299,freq=2.0), product of:
            0.1952553 = queryWeight, product of:
              4.927245 = idf(docFreq=870, maxDocs=44218)
              0.03962768 = queryNorm
            0.13609721 = fieldWeight in 6299, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.927245 = idf(docFreq=870, maxDocs=44218)
              0.01953125 = fieldNorm(doc=6299)
      0.5 = coord(1/2)
  0.125 = coord(1/8)

Footnote

The retrieved output from a query including the phrase 'big rockets' may be, for instance, a sentence containing 'giant rocket' which is semantically ranked above 'military ocket'. David Hull (Xerox Research Centre, Grenoble) describes an implementation of a weighted Boolean model for Spanish-English CLIR. Users construct Boolean-type queries, weighting each term in the query, which is then translated by an on-line dictionary before being applied to the database. Comparisons with the performance of unweighted free-form queries ('vector space' models) proved encouraging. Two contributions consider the evaluation of CLIR systems. In order to by-pass the time-consuming and expensive process of assembling a standard collection of documents and of user queries against which the performance of an CLIR system is manually assessed, Páriac Sheridan et al (ETH Zurich) propose a method based on retrieving 'seed documents'. This involves identifying a unique document in a database (the 'seed document') and, for a number of queries, measuring how fast it is retrieved. The authors have also assembled a large database of multilingual news documents for testing purposes. By storing the (fairly short) documents in a structured form tagged with descriptor codes (e.g. for topic, country and area), the test suite is easily expanded while remaining consistent for the purposes of testing. Douglas Ouard and Bonne Dorr (University of Maryland) describe an evaluation methodology which appears to apply LSI techniques in order to filter and rank incoming documents designed for testing CLIR systems. The volume provides the reader an excellent overview of several projects in CLIR. It is well supported with references and is intended as a secondary text for researchers and practitioners. It highlights the need for a good, general tutorial introduction to the field."

0.0013422508 = product of:
  0.010738007 = sum of:
    0.010738007 = product of:
      0.021476014 = sum of:
        0.021476014 = weight(_text_:22 in 1512) [ClassicSimilarity], result of:
          0.021476014 = score(doc=1512,freq=2.0), product of:
            0.13876937 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03962768 = queryNorm
            0.15476047 = fieldWeight in 1512, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03125 = fieldNorm(doc=1512)
      0.5 = coord(1/2)
  0.125 = coord(1/8)

Date

22. 4.2003 12:09:10

0.0013422508 = product of:
  0.010738007 = sum of:
    0.010738007 = product of:
      0.021476014 = sum of:
        0.021476014 = weight(_text_:22 in 1515) [ClassicSimilarity], result of:
          0.021476014 = score(doc=1515,freq=2.0), product of:
            0.13876937 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03962768 = queryNorm
            0.15476047 = fieldWeight in 1515, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03125 = fieldNorm(doc=1515)
      0.5 = coord(1/2)
  0.125 = coord(1/8)

Date

22. 4.2003 12:05:56

0.0013422508 = product of:
  0.010738007 = sum of:
    0.010738007 = product of:
      0.021476014 = sum of:
        0.021476014 = weight(_text_:22 in 2656) [ClassicSimilarity], result of:
          0.021476014 = score(doc=2656,freq=2.0), product of:
            0.13876937 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03962768 = queryNorm
            0.15476047 = fieldWeight in 2656, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03125 = fieldNorm(doc=2656)
      0.5 = coord(1/2)
  0.125 = coord(1/8)

Source

Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas