Search (4 results, page 1 of 1)

  • × theme_ss:"OPAC"
  • × theme_ss:"Retrievalalgorithmen"
  1. Tseng, Y.H.; Lin, Y.I.: Evaluation of fuzzy search, term suggestion, and term relevance feedback in an OPAC system (1998) 0.02
    0.015504516 = product of:
      0.077522576 = sum of:
        0.077522576 = weight(_text_:21 in 6430) [ClassicSimilarity], result of:
          0.077522576 = score(doc=6430,freq=2.0), product of:
            0.1887428 = queryWeight, product of:
              3.0979297 = idf(docFreq=5425, maxDocs=44218)
              0.060925465 = queryNorm
            0.41073132 = fieldWeight in 6430, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0979297 = idf(docFreq=5425, maxDocs=44218)
              0.09375 = fieldNorm(doc=6430)
      0.2 = coord(1/5)
    
    Date
    13. 5.1996 21:43:23
  2. Koopman, R.: ¬Ein OPAC mit Gewichtungsalgorithmen : Der PICA Micro OPC (1996) 0.01
    0.012920431 = product of:
      0.06460215 = sum of:
        0.06460215 = weight(_text_:21 in 4114) [ClassicSimilarity], result of:
          0.06460215 = score(doc=4114,freq=2.0), product of:
            0.1887428 = queryWeight, product of:
              3.0979297 = idf(docFreq=5425, maxDocs=44218)
              0.060925465 = queryNorm
            0.3422761 = fieldWeight in 4114, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0979297 = idf(docFreq=5425, maxDocs=44218)
              0.078125 = fieldNorm(doc=4114)
      0.2 = coord(1/5)
    
    Source
    Zukunft der Sacherschließung im OPAC: Vorträge des 2. Düsseldorfer OPAC-Kolloquiums am 21. Juni 1995. Hrsg.: E. Niggemann u. K. Lepsky
  3. Beaulieu, M.; Jones, S.: Interactive searching and interface issues in the Okapi best match probabilistic retrieval system (1998) 0.01
    0.009044301 = product of:
      0.045221504 = sum of:
        0.045221504 = weight(_text_:21 in 430) [ClassicSimilarity], result of:
          0.045221504 = score(doc=430,freq=2.0), product of:
            0.1887428 = queryWeight, product of:
              3.0979297 = idf(docFreq=5425, maxDocs=44218)
              0.060925465 = queryNorm
            0.23959327 = fieldWeight in 430, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0979297 = idf(docFreq=5425, maxDocs=44218)
              0.0546875 = fieldNorm(doc=430)
      0.2 = coord(1/5)
    
    Date
    18. 3.1997 21:11:33
  4. Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.01
    0.005778191 = product of:
      0.028890956 = sum of:
        0.028890956 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
          0.028890956 = score(doc=2509,freq=2.0), product of:
            0.2133506 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.060925465 = 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)
      0.2 = coord(1/5)
    
    Source
    Electronic library. 22(2004) no.2, S.112-120