Search (7 results, page 1 of 1)

  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  • × type_ss:"a"
  • × year_i:[1990 TO 2000}
  1. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.08
    0.083886914 = product of:
      0.16777383 = sum of:
        0.16777383 = sum of:
          0.11964179 = weight(_text_:assessment in 1319) [ClassicSimilarity], result of:
            0.11964179 = score(doc=1319,freq=2.0), product of:
              0.2801951 = queryWeight, product of:
                5.52102 = idf(docFreq=480, maxDocs=44218)
                0.050750602 = queryNorm
              0.4269946 = fieldWeight in 1319, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.52102 = idf(docFreq=480, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1319)
          0.048132043 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
            0.048132043 = score(doc=1319,freq=2.0), product of:
              0.17771997 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.050750602 = queryNorm
              0.2708308 = fieldWeight in 1319, 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=1319)
      0.5 = coord(1/2)
    
    Abstract
    Keyword based querying has been an immediate and efficient way to specify and retrieve related information that the user inquired. However, conventional document ranking based on an automatic assessment of document relevance to the query may not be the best approach when little information is given. Proposes an idea to integrate 2 existing techniques, query expansion and relevance feedback to achieve a concept-based information search for the Web
    Date
    1. 8.1996 22:08:06
  2. Gödert, W.: Inhaltliche Dokumenterschließung, Information Retrieval und Navigation in Informationsräumen (1995) 0.03
    0.034183368 = product of:
      0.068366736 = sum of:
        0.068366736 = product of:
          0.13673347 = sum of:
            0.13673347 = weight(_text_:assessment in 4438) [ClassicSimilarity], result of:
              0.13673347 = score(doc=4438,freq=2.0), product of:
                0.2801951 = queryWeight, product of:
                  5.52102 = idf(docFreq=480, maxDocs=44218)
                  0.050750602 = queryNorm
                0.4879938 = fieldWeight in 4438, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.52102 = idf(docFreq=480, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4438)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Examines the advantages and disadvantages of precoordinated, postcoordinated and automatic indexing with regard to existing information storage systems, such as card catalogues, OPACs, CR-ROM databases, and online databases. Presents a general model of document content representation and concludes that the library profession needs to address the development of databank design models, relevance feedback methods and automatic indexing assessment methods, to make indexing more effective
  3. Efthimiadis, E.N.: End-users' understanding of thesaural knowledge structures in interactive query expansion (1994) 0.01
    0.0137520125 = product of:
      0.027504025 = sum of:
        0.027504025 = product of:
          0.05500805 = sum of:
            0.05500805 = weight(_text_:22 in 5693) [ClassicSimilarity], result of:
              0.05500805 = score(doc=5693,freq=2.0), product of:
                0.17771997 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050750602 = queryNorm
                0.30952093 = fieldWeight in 5693, 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=5693)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    30. 3.2001 13:35:22
  4. Fieldhouse, M.; Hancock-Beaulieu, M.: ¬The design of a graphical user interface for a highly interactive information retrieval system (1996) 0.01
    0.012033011 = product of:
      0.024066022 = sum of:
        0.024066022 = product of:
          0.048132043 = sum of:
            0.048132043 = weight(_text_:22 in 6958) [ClassicSimilarity], result of:
              0.048132043 = score(doc=6958,freq=2.0), product of:
                0.17771997 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050750602 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    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
  5. Lund, K.; Burgess, C.; Atchley, R.A.: Semantic and associative priming in high-dimensional semantic space (1995) 0.01
    0.012033011 = product of:
      0.024066022 = sum of:
        0.024066022 = product of:
          0.048132043 = sum of:
            0.048132043 = weight(_text_:22 in 2151) [ClassicSimilarity], result of:
              0.048132043 = score(doc=2151,freq=2.0), product of:
                0.17771997 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050750602 = queryNorm
                0.2708308 = fieldWeight in 2151, 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=2151)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Proceedings of the Seventeenth Annual Conference of the Cognitive Science Society: July 22 - 25, 1995, University of Pittsburgh / ed. by Johanna D. Moore and Jill Fain Lehmann
  6. Järvelin, K.; Kristensen, J.; Niemi, T.; Sormunen, E.; Keskustalo, H.: ¬A deductive data model for query expansion (1996) 0.01
    0.010314009 = product of:
      0.020628018 = sum of:
        0.020628018 = product of:
          0.041256037 = sum of:
            0.041256037 = weight(_text_:22 in 2230) [ClassicSimilarity], result of:
              0.041256037 = score(doc=2230,freq=2.0), product of:
                0.17771997 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050750602 = queryNorm
                0.23214069 = fieldWeight in 2230, 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=2230)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (ACM SIGIR '96), Zürich, Switzerland, August 18-22, 1996. Eds.: H.P. Frei et al
  7. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.01
    0.0085950075 = product of:
      0.017190015 = sum of:
        0.017190015 = product of:
          0.03438003 = sum of:
            0.03438003 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
              0.03438003 = score(doc=5697,freq=2.0), product of:
                0.17771997 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050750602 = queryNorm
                0.19345059 = fieldWeight in 5697, 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=5697)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 2.1996 13:14:10