Search (4 results, page 1 of 1)

  • × theme_ss:"OPAC"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  • × year_i:[1990 TO 2000}
  1. Walker, S.: Subject access in online catalogues (1991) 0.01 
    0.007224257 = product of:
  0.11558811 = sum of:
    0.11558811 = weight(_text_:anglo in 5690) [ClassicSimilarity], result of:
      0.11558811 = score(doc=5690,freq=2.0), product of:
        0.20485519 = queryWeight, product of:
          6.3836813 = idf(docFreq=202, maxDocs=44218)
          0.032090448 = queryNorm
        0.564243 = fieldWeight in 5690, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.3836813 = idf(docFreq=202, maxDocs=44218)
          0.0625 = fieldNorm(doc=5690)
  0.0625 = coord(1/16)
    Source
    OPACs and the user: Proc. of the 3rd Anglo-Nordic seminar, Apr. 90
  2. Fieldhouse, M.; Hancock-Beaulieu, M.: ¬The changing face of OKAPI (1994) 0.00 
    0.0041880067 = product of:
  0.06700811 = sum of:
    0.06700811 = weight(_text_:2nd in 1493) [ClassicSimilarity], result of:
      0.06700811 = score(doc=1493,freq=2.0), product of:
        0.18010403 = queryWeight, product of:
          5.6123877 = idf(docFreq=438, maxDocs=44218)
          0.032090448 = queryNorm
        0.37205225 = fieldWeight in 1493, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.6123877 = idf(docFreq=438, maxDocs=44218)
          0.046875 = fieldNorm(doc=1493)
  0.0625 = coord(1/16)
    Abstract
    Describes the OKAPI projects and OKAPI's development as an experimental online catalogue system over 10 years, first at the University of Westminster (formerly the Polytechnique of Central London) and subsequently at City University, London. The 1st OKAPI project in 1984 introduced 'best match' retrieval and focused on the user interface design. The 2nd investigated word stemming, spelling correction and cross reference tables as retrieval aids. A comparative study of 2 library catalogues was undertaken in 1987, while in 1988 query expansion and relevance feedback were introduced and evaluated by laboratory tests. In 1990 live evaluation of automatic query expansion was carried out and in 1993 subject enhancement of bibliographic records was investigated. The latest project has examined the design of a graphical user interface to support interactive query expansion. Discusses the research and evaluation of each project
  3. Fieldhouse, M.; Hancock-Beaulieu, M.: ¬The design of a graphical user interface for a highly interactive information retrieval system (1996) 0.00 
    0.003863629 = product of:
  0.061818063 = sum of:
    0.061818063 = sum of:
      0.031383373 = weight(_text_:ed in 6958) [ClassicSimilarity], result of:
        0.031383373 = score(doc=6958,freq=2.0), product of:
          0.11411327 = queryWeight, product of:
            3.5559888 = idf(docFreq=3431, maxDocs=44218)
            0.032090448 = queryNorm
          0.27501947 = fieldWeight in 6958, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5559888 = idf(docFreq=3431, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6958)
      0.030434689 = weight(_text_:22 in 6958) [ClassicSimilarity], result of:
        0.030434689 = score(doc=6958,freq=2.0), product of:
          0.11237528 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.032090448 = queryNorm
          0.2708308 = fieldWeight in 6958, 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=6958)
  0.0625 = coord(1/16)
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  4. Ihadjadene, M.; Bouché, R.: Using syntagmatic relationships based on a RAMEAU list as a browsing relevance feedback strategy in a WWW-OPAC (1998) 0.00 
    9.807304E-4 = product of:
  0.015691686 = sum of:
    0.015691686 = product of:
      0.031383373 = sum of:
        0.031383373 = weight(_text_:ed in 141) [ClassicSimilarity], result of:
          0.031383373 = score(doc=141,freq=2.0), product of:
            0.11411327 = queryWeight, product of:
              3.5559888 = idf(docFreq=3431, maxDocs=44218)
              0.032090448 = queryNorm
            0.27501947 = fieldWeight in 141, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5559888 = idf(docFreq=3431, maxDocs=44218)
              0.0546875 = fieldNorm(doc=141)
      0.5 = coord(1/2)
  0.0625 = coord(1/16)
    Source
    Structures and relations in knowledge organization: Proceedings of the 5th International ISKO-Conference, Lille, 25.-29.8.1998. Ed.: W. Mustafa el Hadi et al

Authors

Themes