Document (#2703)

Author
Walker, S.
Hancock-Beaulieu, M.
Title
OKAPI at city : an evaluation facility for interactive IR
Imprint
London : British Library
Year
1991
Series
British Library research report; 6056
Theme
OPAC
Object
OKAPI

Similar documents (author)

  1. Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992) 5.99
    5.987689 = sum of:
      5.987689 = sum of:
        1.8178178 = weight(author_txt:walker in 3732) [ClassicSimilarity], result of:
          1.8178178 = score(doc=3732,freq=1.0), product of:
            0.5421679 = queryWeight, product of:
              7.6637 = idf(docFreq=53, maxDocs=42306)
              0.070744924 = queryNorm
            3.3528688 = fieldWeight in 3732, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.6637 = idf(docFreq=53, maxDocs=42306)
              0.4375 = fieldNorm(doc=3732)
        2.0025806 = weight(author_txt:beaulieu in 3732) [ClassicSimilarity], result of:
          2.0025806 = score(doc=3732,freq=1.0), product of:
            0.57830936 = queryWeight, product of:
              1.0327928 = boost
              7.9150147 = idf(docFreq=41, maxDocs=42306)
              0.070744924 = queryNorm
            3.4628189 = fieldWeight in 3732, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.9150147 = idf(docFreq=41, maxDocs=42306)
              0.4375 = fieldNorm(doc=3732)
        2.1672907 = weight(author_txt:hancock in 3732) [ClassicSimilarity], result of:
          2.1672907 = score(doc=3732,freq=1.0), product of:
            0.60960007 = queryWeight, product of:
              1.0603656 = boost
              8.126324 = idf(docFreq=33, maxDocs=42306)
              0.070744924 = queryNorm
            3.5552666 = fieldWeight in 3732, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.126324 = idf(docFreq=33, maxDocs=42306)
              0.4375 = fieldNorm(doc=3732)
    
  2. Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995) 5.13
    5.132305 = sum of:
      5.132305 = sum of:
        1.5581295 = weight(author_txt:walker in 34) [ClassicSimilarity], result of:
          1.5581295 = score(doc=34,freq=1.0), product of:
            0.5421679 = queryWeight, product of:
              7.6637 = idf(docFreq=53, maxDocs=42306)
              0.070744924 = queryNorm
            2.8738875 = fieldWeight in 34, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.6637 = idf(docFreq=53, maxDocs=42306)
              0.375 = fieldNorm(doc=34)
        1.7164977 = weight(author_txt:beaulieu in 34) [ClassicSimilarity], result of:
          1.7164977 = score(doc=34,freq=1.0), product of:
            0.57830936 = queryWeight, product of:
              1.0327928 = boost
              7.9150147 = idf(docFreq=41, maxDocs=42306)
              0.070744924 = queryNorm
            2.9681306 = fieldWeight in 34, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.9150147 = idf(docFreq=41, maxDocs=42306)
              0.375 = fieldNorm(doc=34)
        1.8576778 = weight(author_txt:hancock in 34) [ClassicSimilarity], result of:
          1.8576778 = score(doc=34,freq=1.0), product of:
            0.60960007 = queryWeight, product of:
              1.0603656 = boost
              8.126324 = idf(docFreq=33, maxDocs=42306)
              0.070744924 = queryNorm
            3.0473714 = fieldWeight in 34, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.126324 = idf(docFreq=33, maxDocs=42306)
              0.375 = fieldNorm(doc=34)
    
  3. Jones, S.; Gatford, M.; Robertson, S.; Hancock-Beaulieu, M.; Secker, J.; Walker, S.: Interactive thesaurus navigation : intelligence rules OK? (1995) 3.42
    3.421537 = sum of:
      3.421537 = sum of:
        1.038753 = weight(author_txt:walker in 249) [ClassicSimilarity], result of:
          1.038753 = score(doc=249,freq=1.0), product of:
            0.5421679 = queryWeight, product of:
              7.6637 = idf(docFreq=53, maxDocs=42306)
              0.070744924 = queryNorm
            1.915925 = fieldWeight in 249, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.6637 = idf(docFreq=53, maxDocs=42306)
              0.25 = fieldNorm(doc=249)
        1.1443318 = weight(author_txt:beaulieu in 249) [ClassicSimilarity], result of:
          1.1443318 = score(doc=249,freq=1.0), product of:
            0.57830936 = queryWeight, product of:
              1.0327928 = boost
              7.9150147 = idf(docFreq=41, maxDocs=42306)
              0.070744924 = queryNorm
            1.9787537 = fieldWeight in 249, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.9150147 = idf(docFreq=41, maxDocs=42306)
              0.25 = fieldNorm(doc=249)
        1.2384518 = weight(author_txt:hancock in 249) [ClassicSimilarity], result of:
          1.2384518 = score(doc=249,freq=1.0), product of:
            0.60960007 = queryWeight, product of:
              1.0603656 = boost
              8.126324 = idf(docFreq=33, maxDocs=42306)
              0.070744924 = queryNorm
            2.031581 = fieldWeight in 249, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.126324 = idf(docFreq=33, maxDocs=42306)
              0.25 = fieldNorm(doc=249)
    
  4. Hancock-Beaulieu, M.M.: User friendliness and human-computer interaction in online library catalogues (1992) 3.18
    3.1770449 = sum of:
      3.1770449 = product of:
        4.7655673 = sum of:
          2.2886636 = weight(author_txt:beaulieu in 1255) [ClassicSimilarity], result of:
            2.2886636 = score(doc=1255,freq=1.0), product of:
              0.57830936 = queryWeight, product of:
                1.0327928 = boost
                7.9150147 = idf(docFreq=41, maxDocs=42306)
                0.070744924 = queryNorm
              3.9575074 = fieldWeight in 1255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.9150147 = idf(docFreq=41, maxDocs=42306)
                0.5 = fieldNorm(doc=1255)
          2.4769037 = weight(author_txt:hancock in 1255) [ClassicSimilarity], result of:
            2.4769037 = score(doc=1255,freq=1.0), product of:
              0.60960007 = queryWeight, product of:
                1.0603656 = boost
                8.126324 = idf(docFreq=33, maxDocs=42306)
                0.070744924 = queryNorm
              4.063162 = fieldWeight in 1255, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.126324 = idf(docFreq=33, maxDocs=42306)
                0.5 = fieldNorm(doc=1255)
        0.6666667 = coord(2/3)
    
  5. Hancock-Beaulieu, M.: Query expansion : advances in research in online catalogues (1992) 3.18
    3.1770449 = sum of:
      3.1770449 = product of:
        4.7655673 = sum of:
          2.2886636 = weight(author_txt:beaulieu in 2351) [ClassicSimilarity], result of:
            2.2886636 = score(doc=2351,freq=1.0), product of:
              0.57830936 = queryWeight, product of:
                1.0327928 = boost
                7.9150147 = idf(docFreq=41, maxDocs=42306)
                0.070744924 = queryNorm
              3.9575074 = fieldWeight in 2351, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.9150147 = idf(docFreq=41, maxDocs=42306)
                0.5 = fieldNorm(doc=2351)
          2.4769037 = weight(author_txt:hancock in 2351) [ClassicSimilarity], result of:
            2.4769037 = score(doc=2351,freq=1.0), product of:
              0.60960007 = queryWeight, product of:
                1.0603656 = boost
                8.126324 = idf(docFreq=33, maxDocs=42306)
                0.070744924 = queryNorm
              4.063162 = fieldWeight in 2351, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.126324 = idf(docFreq=33, maxDocs=42306)
                0.5 = fieldNorm(doc=2351)
        0.6666667 = coord(2/3)
    

Similar documents (content)

  1. Fieldhouse, M.; Hancock-Beaulieu, M.: ¬The design of a graphical user interface for a highly interactive information retrieval system (1996) 0.85
    0.85260314 = sum of:
      0.85260314 = product of:
        1.0657539 = sum of:
          0.081716426 = weight(abstract_txt:evaluation in 28) [ClassicSimilarity], result of:
            0.081716426 = score(doc=28,freq=1.0), product of:
              0.19398303 = queryWeight, product of:
                4.4933925 = idf(docFreq=1285, maxDocs=42306)
                0.04317073 = queryNorm
              0.42125553 = fieldWeight in 28, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4933925 = idf(docFreq=1285, maxDocs=42306)
                0.09375 = fieldNorm(doc=28)
          0.21777585 = weight(abstract_txt:interactive in 28) [ClassicSimilarity], result of:
            0.21777585 = score(doc=28,freq=2.0), product of:
              0.29595158 = queryWeight, product of:
                1.2351749 = boost
                5.5501256 = idf(docFreq=446, maxDocs=42306)
                0.04317073 = queryNorm
              0.7358496 = fieldWeight in 28, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5501256 = idf(docFreq=446, maxDocs=42306)
                0.09375 = fieldNorm(doc=28)
          0.31132796 = weight(abstract_txt:city in 28) [ClassicSimilarity], result of:
            0.31132796 = score(doc=28,freq=1.0), product of:
              0.47319078 = queryWeight, product of:
                1.561839 = boost
                7.0179553 = idf(docFreq=102, maxDocs=42306)
                0.04317073 = queryNorm
              0.6579333 = fieldWeight in 28, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.0179553 = idf(docFreq=102, maxDocs=42306)
                0.09375 = fieldNorm(doc=28)
          0.45493373 = weight(abstract_txt:okapi in 28) [ClassicSimilarity], result of:
            0.45493373 = score(doc=28,freq=1.0), product of:
              0.6093352 = queryWeight, product of:
                1.7723367 = boost
                7.9638047 = idf(docFreq=39, maxDocs=42306)
                0.04317073 = queryNorm
              0.7466067 = fieldWeight in 28, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.9638047 = idf(docFreq=39, maxDocs=42306)
                0.09375 = fieldNorm(doc=28)
        0.8 = coord(4/5)
    
  2. Fieldhouse, M.; Hancock-Beaulieu, M.: ¬The changing face of OKAPI (1994) 0.82
    0.8161711 = sum of:
      0.8161711 = product of:
        1.0202138 = sum of:
          0.09630373 = weight(abstract_txt:evaluation in 1562) [ClassicSimilarity], result of:
            0.09630373 = score(doc=1562,freq=2.0), product of:
              0.19398303 = queryWeight, product of:
                4.4933925 = idf(docFreq=1285, maxDocs=42306)
                0.04317073 = queryNorm
              0.49645442 = fieldWeight in 1562, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.4933925 = idf(docFreq=1285, maxDocs=42306)
                0.078125 = fieldNorm(doc=1562)
          0.12832566 = weight(abstract_txt:interactive in 1562) [ClassicSimilarity], result of:
            0.12832566 = score(doc=1562,freq=1.0), product of:
              0.29595158 = queryWeight, product of:
                1.2351749 = boost
                5.5501256 = idf(docFreq=446, maxDocs=42306)
                0.04317073 = queryNorm
              0.43360355 = fieldWeight in 1562, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5501256 = idf(docFreq=446, maxDocs=42306)
                0.078125 = fieldNorm(doc=1562)
          0.25943998 = weight(abstract_txt:city in 1562) [ClassicSimilarity], result of:
            0.25943998 = score(doc=1562,freq=1.0), product of:
              0.47319078 = queryWeight, product of:
                1.561839 = boost
                7.0179553 = idf(docFreq=102, maxDocs=42306)
                0.04317073 = queryNorm
              0.54827774 = fieldWeight in 1562, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.0179553 = idf(docFreq=102, maxDocs=42306)
                0.078125 = fieldNorm(doc=1562)
          0.53614455 = weight(abstract_txt:okapi in 1562) [ClassicSimilarity], result of:
            0.53614455 = score(doc=1562,freq=2.0), product of:
              0.6093352 = queryWeight, product of:
                1.7723367 = boost
                7.9638047 = idf(docFreq=39, maxDocs=42306)
                0.04317073 = queryNorm
              0.8798844 = fieldWeight in 1562, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.9638047 = idf(docFreq=39, maxDocs=42306)
                0.078125 = fieldNorm(doc=1562)
        0.8 = coord(4/5)
    
  3. Robertson, S.E.: Overview of the Okapi projects (1997) 0.78
    0.77608454 = sum of:
      0.77608454 = product of:
        1.2934742 = sum of:
          0.17965592 = weight(abstract_txt:interactive in 704) [ClassicSimilarity], result of:
            0.17965592 = score(doc=704,freq=1.0), product of:
              0.29595158 = queryWeight, product of:
                1.2351749 = boost
                5.5501256 = idf(docFreq=446, maxDocs=42306)
                0.04317073 = queryNorm
              0.607045 = fieldWeight in 704, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5501256 = idf(docFreq=446, maxDocs=42306)
                0.109375 = fieldNorm(doc=704)
          0.36321598 = weight(abstract_txt:city in 704) [ClassicSimilarity], result of:
            0.36321598 = score(doc=704,freq=1.0), product of:
              0.47319078 = queryWeight, product of:
                1.561839 = boost
                7.0179553 = idf(docFreq=102, maxDocs=42306)
                0.04317073 = queryNorm
              0.76758885 = fieldWeight in 704, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.0179553 = idf(docFreq=102, maxDocs=42306)
                0.109375 = fieldNorm(doc=704)
          0.75060236 = weight(abstract_txt:okapi in 704) [ClassicSimilarity], result of:
            0.75060236 = score(doc=704,freq=2.0), product of:
              0.6093352 = queryWeight, product of:
                1.7723367 = boost
                7.9638047 = idf(docFreq=39, maxDocs=42306)
                0.04317073 = queryNorm
              1.2318382 = fieldWeight in 704, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.9638047 = idf(docFreq=39, maxDocs=42306)
                0.109375 = fieldNorm(doc=704)
        0.6 = coord(3/5)
    
  4. Karamuftuoglu, M.: Designing language games in Okapi (1997) 0.74
    0.736202 = sum of:
      0.736202 = product of:
        1.2270033 = sum of:
          0.20532106 = weight(abstract_txt:interactive in 518) [ClassicSimilarity], result of:
            0.20532106 = score(doc=518,freq=1.0), product of:
              0.29595158 = queryWeight, product of:
                1.2351749 = boost
                5.5501256 = idf(docFreq=446, maxDocs=42306)
                0.04317073 = queryNorm
              0.6937657 = fieldWeight in 518, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5501256 = idf(docFreq=446, maxDocs=42306)
                0.125 = fieldNorm(doc=518)
          0.41510397 = weight(abstract_txt:city in 518) [ClassicSimilarity], result of:
            0.41510397 = score(doc=518,freq=1.0), product of:
              0.47319078 = queryWeight, product of:
                1.561839 = boost
                7.0179553 = idf(docFreq=102, maxDocs=42306)
                0.04317073 = queryNorm
              0.8772444 = fieldWeight in 518, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.0179553 = idf(docFreq=102, maxDocs=42306)
                0.125 = fieldNorm(doc=518)
          0.6065783 = weight(abstract_txt:okapi in 518) [ClassicSimilarity], result of:
            0.6065783 = score(doc=518,freq=1.0), product of:
              0.6093352 = queryWeight, product of:
                1.7723367 = boost
                7.9638047 = idf(docFreq=39, maxDocs=42306)
                0.04317073 = queryNorm
              0.9954756 = fieldWeight in 518, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.9638047 = idf(docFreq=39, maxDocs=42306)
                0.125 = fieldNorm(doc=518)
        0.6 = coord(3/5)
    
  5. Hancock-Beaulieu, M.; Fieldhouse, M.; Do, T.: ¬An evaluation of interactive query expansion in an online library catalogue with a graphical user interface (1995) 0.72
    0.7156688 = sum of:
      0.7156688 = product of:
        1.1927813 = sum of:
          0.21777585 = weight(abstract_txt:interactive in 1735) [ClassicSimilarity], result of:
            0.21777585 = score(doc=1735,freq=2.0), product of:
              0.29595158 = queryWeight, product of:
                1.2351749 = boost
                5.5501256 = idf(docFreq=446, maxDocs=42306)
                0.04317073 = queryNorm
              0.7358496 = fieldWeight in 1735, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5501256 = idf(docFreq=446, maxDocs=42306)
                0.09375 = fieldNorm(doc=1735)
          0.52007174 = weight(abstract_txt:facility in 1735) [ClassicSimilarity], result of:
            0.52007174 = score(doc=1735,freq=2.0), product of:
              0.5287573 = queryWeight, product of:
                1.650997 = boost
                7.4185777 = idf(docFreq=68, maxDocs=42306)
                0.04317073 = queryNorm
              0.98357373 = fieldWeight in 1735, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.4185777 = idf(docFreq=68, maxDocs=42306)
                0.09375 = fieldNorm(doc=1735)
          0.45493373 = weight(abstract_txt:okapi in 1735) [ClassicSimilarity], result of:
            0.45493373 = score(doc=1735,freq=1.0), product of:
              0.6093352 = queryWeight, product of:
                1.7723367 = boost
                7.9638047 = idf(docFreq=39, maxDocs=42306)
                0.04317073 = queryNorm
              0.7466067 = fieldWeight in 1735, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.9638047 = idf(docFreq=39, maxDocs=42306)
                0.09375 = fieldNorm(doc=1735)
        0.6 = coord(3/5)