Search (266 results, page 1 of 14)

  • × theme_ss:"Literaturübersicht"
  1. Smith, L.C.: Artificial intelligence and information retrieval (1987) 0.02
    0.01825259 = product of:
      0.085178755 = sum of:
        0.018901754 = weight(_text_:information in 335) [ClassicSimilarity], result of:
          0.018901754 = score(doc=335,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.43886948 = fieldWeight in 335, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=335)
        0.03968467 = weight(_text_:retrieval in 335) [ClassicSimilarity], result of:
          0.03968467 = score(doc=335,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 335, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=335)
        0.026592331 = product of:
          0.053184662 = sum of:
            0.053184662 = weight(_text_:22 in 335) [ClassicSimilarity], result of:
              0.053184662 = score(doc=335,freq=2.0), product of:
                0.085914485 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02453417 = queryNorm
                0.61904186 = fieldWeight in 335, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.125 = fieldNorm(doc=335)
          0.5 = coord(1/2)
      0.21428572 = coord(3/14)
    
    Source
    Annual review of information science and technology. 22(1987), S.41-77
  2. Enser, P.G.B.: Visual image retrieval (2008) 0.02
    0.017066263 = product of:
      0.07964256 = sum of:
        0.013365558 = weight(_text_:information in 3281) [ClassicSimilarity], result of:
          0.013365558 = score(doc=3281,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3103276 = fieldWeight in 3281, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=3281)
        0.03968467 = weight(_text_:retrieval in 3281) [ClassicSimilarity], result of:
          0.03968467 = score(doc=3281,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 3281, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=3281)
        0.026592331 = product of:
          0.053184662 = sum of:
            0.053184662 = weight(_text_:22 in 3281) [ClassicSimilarity], result of:
              0.053184662 = score(doc=3281,freq=2.0), product of:
                0.085914485 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02453417 = queryNorm
                0.61904186 = fieldWeight in 3281, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.125 = fieldNorm(doc=3281)
          0.5 = coord(1/2)
      0.21428572 = coord(3/14)
    
    Date
    22. 1.2012 13:01:26
    Source
    Annual review of information science and technology. 42(2008), S.3-42
  3. Belkin, N.J.; Croft, W.B.: Retrieval techniques (1987) 0.02
    0.017066263 = product of:
      0.07964256 = sum of:
        0.013365558 = weight(_text_:information in 334) [ClassicSimilarity], result of:
          0.013365558 = score(doc=334,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3103276 = fieldWeight in 334, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=334)
        0.03968467 = weight(_text_:retrieval in 334) [ClassicSimilarity], result of:
          0.03968467 = score(doc=334,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 334, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=334)
        0.026592331 = product of:
          0.053184662 = sum of:
            0.053184662 = weight(_text_:22 in 334) [ClassicSimilarity], result of:
              0.053184662 = score(doc=334,freq=2.0), product of:
                0.085914485 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02453417 = queryNorm
                0.61904186 = fieldWeight in 334, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.125 = fieldNorm(doc=334)
          0.5 = coord(1/2)
      0.21428572 = coord(3/14)
    
    Source
    Annual review of information science and technology. 22(1987), S.109-145
  4. Kantor, P.B.: Information retrieval techniques (1994) 0.02
    0.01554203 = product of:
      0.07252947 = sum of:
        0.022816047 = weight(_text_:system in 1056) [ClassicSimilarity], result of:
          0.022816047 = score(doc=1056,freq=4.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.29527056 = fieldWeight in 1056, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.046875 = fieldNorm(doc=1056)
        0.013260729 = weight(_text_:information in 1056) [ClassicSimilarity], result of:
          0.013260729 = score(doc=1056,freq=14.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3078936 = fieldWeight in 1056, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=1056)
        0.036452696 = weight(_text_:retrieval in 1056) [ClassicSimilarity], result of:
          0.036452696 = score(doc=1056,freq=12.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.49118498 = fieldWeight in 1056, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=1056)
      0.21428572 = coord(3/14)
    
    Abstract
    State of the art review of information retrieval techniques viewed in terms of the growing effort to implement concept based retrieval in content based algorithms. Identifies trends in the automation of indexing, retrieval, and the interaction between systems and users. Identifies 3 central issues: ways in which systems describe documents for purposes of information retrieval; ways in which systems compute the degree of match between a given document and the current state of the query; amd what the systems do with the information that they obtain from the users. Looks at information retrieval techniques in terms of: location, navigation; indexing; documents; queries; structures; concepts; matching documents to queries; restoring query structure; algorithms and content versus concepts; formulation of concepts in terms of contents; formulation of concepts with the assistance of the users; complex system codes versus underlying principles; and system evaluation
    Imprint
    Medford, NJ : Learned Information Inc.
    Source
    Annual review of information science and technology. 29(1994), S.53-90
  5. Drenth, H.; Morris, A.; Tseng, G.: Expert systems as information intermediaries (1991) 0.02
    0.0151761975 = product of:
      0.070822254 = sum of:
        0.021511177 = weight(_text_:system in 3695) [ClassicSimilarity], result of:
          0.021511177 = score(doc=3695,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.27838376 = fieldWeight in 3695, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0625 = fieldNorm(doc=3695)
        0.014943148 = weight(_text_:information in 3695) [ClassicSimilarity], result of:
          0.014943148 = score(doc=3695,freq=10.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3469568 = fieldWeight in 3695, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=3695)
        0.03436793 = weight(_text_:retrieval in 3695) [ClassicSimilarity], result of:
          0.03436793 = score(doc=3695,freq=6.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.46309367 = fieldWeight in 3695, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=3695)
      0.21428572 = coord(3/14)
    
    Abstract
    Points out that expert systems have great potential to enhance access to information retrieval systems as they use expertise to carry out tasks such as diagnosis and planning and make expertise available to nonexperts. Potential end users of online information retrieval systems are frequently deterred by the complexity of theses systems. Expert systems can mediate between the searcher and the information retrieval system and might be the key both to increasing and end user searching and to improving the quality of searches overall
    Source
    Annual review of information science and technology. 26(1991), S.113-154
  6. Shaw, D.: ¬The human-computer interface for information retrieval (1991) 0.01
    0.014276061 = product of:
      0.06662162 = sum of:
        0.018822279 = weight(_text_:system in 5261) [ClassicSimilarity], result of:
          0.018822279 = score(doc=5261,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.2435858 = fieldWeight in 5261, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5261)
        0.013075255 = weight(_text_:information in 5261) [ClassicSimilarity], result of:
          0.013075255 = score(doc=5261,freq=10.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3035872 = fieldWeight in 5261, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5261)
        0.034724083 = weight(_text_:retrieval in 5261) [ClassicSimilarity], result of:
          0.034724083 = score(doc=5261,freq=8.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.46789268 = fieldWeight in 5261, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5261)
      0.21428572 = coord(3/14)
    
    Abstract
    Discusses the human-computer interface for information retrieval and notes that research on human-computer interface design has generated many widely-accepted principles of interface design which should be of interest and value to designers of information retrieval systems. Work on display features such as highlighting, colour, icons, and windows has received considerable attention. research has also focused on how the user interacts with the system, whether by commands, menus, or direct manipulation. Studies of interfaces for information retrieval systems reveal that online searching has emphasised developments of front ends, with some novel uses of graphics. CD-ROM and optical media are characterised by interface diversity, again with some inclusion of graphic interfaces. Online catalogues and full text data bases have provided interesting comparisons of mode of interaction
    Source
    Annual review of information science and technology. 26(1991), S.155-195
  7. Downie, J.S.: Music information retrieval (2002) 0.01
    0.0122728245 = product of:
      0.05727318 = sum of:
        0.022816047 = weight(_text_:system in 4287) [ClassicSimilarity], result of:
          0.022816047 = score(doc=4287,freq=4.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.29527056 = fieldWeight in 4287, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.046875 = fieldNorm(doc=4287)
        0.008681185 = weight(_text_:information in 4287) [ClassicSimilarity], result of:
          0.008681185 = score(doc=4287,freq=6.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.20156369 = fieldWeight in 4287, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=4287)
        0.025775949 = weight(_text_:retrieval in 4287) [ClassicSimilarity], result of:
          0.025775949 = score(doc=4287,freq=6.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.34732026 = fieldWeight in 4287, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=4287)
      0.21428572 = coord(3/14)
    
    Abstract
    Imagine a world where you walk up to a computer and sing the song fragment that has been plaguing you since breakfast. The computer accepts your off-key singing, corrects your request, and promptly suggests to you that "Camptown Races" is the cause of your irritation. You confirm the computer's suggestion by listening to one of the many MP3 files it has found. Satisfied, you kindly decline the offer to retrieve all extant versions of the song, including a recently released Italian rap rendition and an orchestral score featuring a bagpipe duet. Does such a system exist today? No. Will it in the future? Yes. Will such a system be easy to produce? Most decidedly not. Myriad difficulties remain to be overcome before the creation, deployment, and evaluation of robust, large-scale, and content-based Music Information Retrieval (MIR) systems become reality. The dizzyingly complex interaction of music's pitch, temporal, harmonic, timbral, editorial, textual, and bibliographic "facets," for example, demonstrates just one of MIR's perplexing problems. The choice of music representation-whether symbol-based, audio-based, or both-further compounds matters, as each choice determines bandwidth, computation, storage, retrieval, and interface requirements and capabilities.
    Source
    Annual review of information science and technology. 37(2003), S.295-342
  8. Brooks, D.: System-system interaction in computerized indexing of visual materials : a selected review (1988) 0.01
    0.0122028245 = product of:
      0.056946512 = sum of:
        0.030421399 = weight(_text_:system in 656) [ClassicSimilarity], result of:
          0.030421399 = score(doc=656,freq=4.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.3936941 = fieldWeight in 656, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0625 = fieldNorm(doc=656)
        0.006682779 = weight(_text_:information in 656) [ClassicSimilarity], result of:
          0.006682779 = score(doc=656,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.1551638 = fieldWeight in 656, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=656)
        0.019842334 = weight(_text_:retrieval in 656) [ClassicSimilarity], result of:
          0.019842334 = score(doc=656,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.26736724 = fieldWeight in 656, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=656)
      0.21428572 = coord(3/14)
    
    Abstract
    International computerized indexing systems for visual materials are discussed. The systems included were among the best in the literature for their time or have significant potential and represent the state of the art in their respective countries. Technologies available for reproducing images are also investigated, highlighting videotex, videodisc, and digital storage. The interfacing of these technologies with each other and with online, postcoordinate retrieval systems could facilitate the ultimate achievement in visual indexing
    Source
    Information technology and libraries. 7(1988), S.111-123
  9. Chang, S.J.; Rice, R.R.: Browsing: a multidimensional framework (1993) 0.01
    0.012063569 = product of:
      0.056296658 = sum of:
        0.021511177 = weight(_text_:system in 349) [ClassicSimilarity], result of:
          0.021511177 = score(doc=349,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.27838376 = fieldWeight in 349, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0625 = fieldNorm(doc=349)
        0.014943148 = weight(_text_:information in 349) [ClassicSimilarity], result of:
          0.014943148 = score(doc=349,freq=10.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3469568 = fieldWeight in 349, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=349)
        0.019842334 = weight(_text_:retrieval in 349) [ClassicSimilarity], result of:
          0.019842334 = score(doc=349,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.26736724 = fieldWeight in 349, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=349)
      0.21428572 = coord(3/14)
    
    Abstract
    State of the art review of browsing from many different multidisciplinary contexts, integrating the diverse literatures on browsing: library and information science (information searching); end user information retrieval and system design (database searching); consumer behaviour (store shopping); mass media audience (television channel switching); organizational communication; and wayfinding and environmental design. Considers what constitutes browsing, and what are the consequences of browsing. Attempts to identify the underlying common dimensions of browsing and the consequences of browsing in a wide variety of human activities
    Imprint
    Medford, NJ : Learned Information
    Source
    Annual review of information science and technology. 28(1993), S.231-276
  10. Buckland, M.K.; Liu, Z.: History of information science (1995) 0.01
    0.011151483 = product of:
      0.052040253 = sum of:
        0.018901754 = weight(_text_:information in 4226) [ClassicSimilarity], result of:
          0.018901754 = score(doc=4226,freq=16.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.43886948 = fieldWeight in 4226, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=4226)
        0.019842334 = weight(_text_:retrieval in 4226) [ClassicSimilarity], result of:
          0.019842334 = score(doc=4226,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.26736724 = fieldWeight in 4226, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=4226)
        0.0132961655 = product of:
          0.026592331 = sum of:
            0.026592331 = weight(_text_:22 in 4226) [ClassicSimilarity], result of:
              0.026592331 = score(doc=4226,freq=2.0), product of:
                0.085914485 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02453417 = queryNorm
                0.30952093 = fieldWeight in 4226, 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=4226)
          0.5 = coord(1/2)
      0.21428572 = coord(3/14)
    
    Abstract
    State of the art review of the historical development of information science as deemed to be covered by the particular interests of memebers of the American Society for Information Science, as defined as the representation, storage, transmission, selection, retrieval, filtering, and use of documents and messages. Arranges the references cited roughly according to the classification scheme used by Information Science Abstracts, and so uses the headings: background; information science; techniques and technology; information related behaviour; application areas; social aspects; education for information science; institutions; individuals; geographical areas; and conclusions
    Date
    13. 6.1996 19:22:20
    Source
    Annual review of information science and technology. 30(1995), S.385-416
  11. Hjoerland, B.; Kyllesbech Nielsen, L.: Subject access points in electronic retrieval (2001) 0.01
    0.010262678 = product of:
      0.071838744 = sum of:
        0.011694863 = weight(_text_:information in 3826) [ClassicSimilarity], result of:
          0.011694863 = score(doc=3826,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.27153665 = fieldWeight in 3826, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.109375 = fieldNorm(doc=3826)
        0.06014388 = weight(_text_:retrieval in 3826) [ClassicSimilarity], result of:
          0.06014388 = score(doc=3826,freq=6.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.8104139 = fieldWeight in 3826, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.109375 = fieldNorm(doc=3826)
      0.14285715 = coord(2/14)
    
    Source
    Annual review of information science and technology. 35(2001), S.249-298
    Theme
    Klassifikationssysteme im Online-Retrieval
    Verbale Doksprachen im Online-Retrieval
  12. Mostafa, J.: Digital image representation and access (1994) 0.01
    0.0095258225 = product of:
      0.044453837 = sum of:
        0.018822279 = weight(_text_:system in 1102) [ClassicSimilarity], result of:
          0.018822279 = score(doc=1102,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.2435858 = fieldWeight in 1102, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1102)
        0.008269517 = weight(_text_:information in 1102) [ClassicSimilarity], result of:
          0.008269517 = score(doc=1102,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.1920054 = fieldWeight in 1102, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1102)
        0.017362041 = weight(_text_:retrieval in 1102) [ClassicSimilarity], result of:
          0.017362041 = score(doc=1102,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.23394634 = fieldWeight in 1102, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1102)
      0.21428572 = coord(3/14)
    
    Abstract
    State of the art review of techniques used to generate, store and retrieval digital images. Explains basic terms and concepts related to image representation and describes the differences between bilevel, greyscale, and colour images. Introduces additional image related data, specifically colour standards, correction values, resolution parameters and lookup tables. Illustrates the use of data compression techniques and various image data formats that have been used. Identifies 4 branches of imaging research related to dtaa indexing and modelling: verbal indexing; visual surrogates; image indexing; and data structures. Concludes with a discussion of the state of the art in networking technology with consideration of image distribution, local system requirements and data integrity
    Imprint
    Medford, NJ : Learned Information Inc.
    Source
    Annual review of information science and technology. 29(1994), S.91-135
  13. Haas, S.W.: Natural language processing : toward large-scale, robust systems (1996) 0.01
    0.009126295 = product of:
      0.042589378 = sum of:
        0.009450877 = weight(_text_:information in 7415) [ClassicSimilarity], result of:
          0.009450877 = score(doc=7415,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.21943474 = fieldWeight in 7415, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=7415)
        0.019842334 = weight(_text_:retrieval in 7415) [ClassicSimilarity], result of:
          0.019842334 = score(doc=7415,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.26736724 = fieldWeight in 7415, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=7415)
        0.0132961655 = product of:
          0.026592331 = sum of:
            0.026592331 = weight(_text_:22 in 7415) [ClassicSimilarity], result of:
              0.026592331 = score(doc=7415,freq=2.0), product of:
                0.085914485 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02453417 = queryNorm
                0.30952093 = fieldWeight in 7415, 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=7415)
          0.5 = coord(1/2)
      0.21428572 = coord(3/14)
    
    Abstract
    State of the art review of natural language processing updating an earlier review published in ARIST 22(1987). Discusses important developments that have allowed for significant advances in the field of natural language processing: materials and resources; knowledge based systems and statistical approaches; and a strong emphasis on evaluation. Reviews some natural language processing applications and common problems still awaiting solution. Considers closely related applications such as language generation and th egeneration phase of machine translation which face the same problems as natural language processing. Covers natural language methodologies for information retrieval only briefly
    Source
    Annual review of information science and technology. 31(1996), S.83-119
  14. Yang, K.: Information retrieval on the Web (2004) 0.01
    0.008931441 = product of:
      0.041680057 = sum of:
        0.010755588 = weight(_text_:system in 4278) [ClassicSimilarity], result of:
          0.010755588 = score(doc=4278,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.13919188 = fieldWeight in 4278, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03125 = fieldNorm(doc=4278)
        0.011082135 = weight(_text_:information in 4278) [ClassicSimilarity], result of:
          0.011082135 = score(doc=4278,freq=22.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.25731003 = fieldWeight in 4278, product of:
              4.690416 = tf(freq=22.0), with freq of:
                22.0 = termFreq=22.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=4278)
        0.019842334 = weight(_text_:retrieval in 4278) [ClassicSimilarity], result of:
          0.019842334 = score(doc=4278,freq=8.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.26736724 = fieldWeight in 4278, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.03125 = fieldNorm(doc=4278)
      0.21428572 = coord(3/14)
    
    Abstract
    How do we find information an the Web? Although information on the Web is distributed and decentralized, the Web can be viewed as a single, virtual document collection. In that regard, the fundamental questions and approaches of traditional information retrieval (IR) research (e.g., term weighting, query expansion) are likely to be relevant in Web document retrieval. Findings from traditional IR research, however, may not always be applicable in a Web setting. The Web document collection - massive in size and diverse in content, format, purpose, and quality - challenges the validity of previous research findings that are based an relatively small and homogeneous test collections. Moreover, some traditional IR approaches, although applicable in theory, may be impossible or impractical to implement in a Web setting. For instance, the size, distribution, and dynamic nature of Web information make it extremely difficult to construct a complete and up-to-date data representation of the kind required for a model IR system. To further complicate matters, information seeking on the Web is diverse in character and unpredictable in nature. Web searchers come from all walks of life and are motivated by many kinds of information needs. The wide range of experience, knowledge, motivation, and purpose means that searchers can express diverse types of information needs in a wide variety of ways with differing criteria for satisfying those needs. Conventional evaluation measures, such as precision and recall, may no longer be appropriate for Web IR, where a representative test collection is all but impossible to construct. Finding information on the Web creates many new challenges for, and exacerbates some old problems in, IR research. At the same time, the Web is rich in new types of information not present in most IR test collections. Hyperlinks, usage statistics, document markup tags, and collections of topic hierarchies such as Yahoo! (http://www.yahoo.com) present an opportunity to leverage Web-specific document characteristics in novel ways that go beyond the term-based retrieval framework of traditional IR. Consequently, researchers in Web IR have reexamined the findings from traditional IR research.
    Source
    Annual review of information science and technology. 39(2005), S.33-80
  15. Bookstein, A.: Probability and Fuzzy-set applications to information retrieval (1985) 0.01
    0.00836949 = product of:
      0.058586422 = sum of:
        0.018901754 = weight(_text_:information in 781) [ClassicSimilarity], result of:
          0.018901754 = score(doc=781,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.43886948 = fieldWeight in 781, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=781)
        0.03968467 = weight(_text_:retrieval in 781) [ClassicSimilarity], result of:
          0.03968467 = score(doc=781,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 781, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=781)
      0.14285715 = coord(2/14)
    
    Source
    Annual review of information science and technology. 20(1985), S.117-151
  16. Ruthven, R.: Interactive information retrieval (2008) 0.01
    0.00836949 = product of:
      0.058586422 = sum of:
        0.018901754 = weight(_text_:information in 2839) [ClassicSimilarity], result of:
          0.018901754 = score(doc=2839,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.43886948 = fieldWeight in 2839, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=2839)
        0.03968467 = weight(_text_:retrieval in 2839) [ClassicSimilarity], result of:
          0.03968467 = score(doc=2839,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 2839, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=2839)
      0.14285715 = coord(2/14)
    
    Source
    Annual review of information science and technology. 42(2008), S.xxx-xxx
  17. Foster, J.: Collaborative information seeking and retrieval (2006) 0.01
    0.00836949 = product of:
      0.058586422 = sum of:
        0.018901754 = weight(_text_:information in 4321) [ClassicSimilarity], result of:
          0.018901754 = score(doc=4321,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.43886948 = fieldWeight in 4321, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=4321)
        0.03968467 = weight(_text_:retrieval in 4321) [ClassicSimilarity], result of:
          0.03968467 = score(doc=4321,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 4321, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=4321)
      0.14285715 = coord(2/14)
    
    Source
    Annual review of information science and technology. 40(2006), S.xxx-xxx
  18. Saracevic, T.: Relevance: a review of the literature and a framework for thinking on the notion in information science. Part II : nature and manifestations of relevance (2007) 0.01
    0.007867055 = product of:
      0.036712922 = sum of:
        0.015210699 = weight(_text_:system in 612) [ClassicSimilarity], result of:
          0.015210699 = score(doc=612,freq=4.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.19684705 = fieldWeight in 612, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03125 = fieldNorm(doc=612)
        0.007471574 = weight(_text_:information in 612) [ClassicSimilarity], result of:
          0.007471574 = score(doc=612,freq=10.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.1734784 = fieldWeight in 612, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=612)
        0.014030648 = weight(_text_:retrieval in 612) [ClassicSimilarity], result of:
          0.014030648 = score(doc=612,freq=4.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.18905719 = fieldWeight in 612, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.03125 = fieldNorm(doc=612)
      0.21428572 = coord(3/14)
    
    Abstract
    Relevance is a, if not even the, key notion in information science in general and information retrieval in particular. This two-part critical review traces and synthesizes the scholarship on relevance over the past 30 years and provides an updated framework within which the still widely dissonant ideas and works about relevance might be interpreted and related. It is a continuation and update of a similar review that appeared in 1975 under the same title, considered here as being Part I. The present review is organized into two parts: Part II addresses the questions related to nature and manifestations of relevance, and Part III addresses questions related to relevance behavior and effects. In Part II, the nature of relevance is discussed in terms of meaning ascribed to relevance, theories used or proposed, and models that have been developed. The manifestations of relevance are classified as to several kinds of relevance that form an interdependent system of relevances. In Part III, relevance behavior and effects are synthesized using experimental and observational works that incorporate data. In both parts, each section concludes with a summary that in effect provides an interpretation and synthesis of contemporary thinking on the topic treated or suggests hypotheses for future research. Analyses of some of the major trends that shape relevance work are offered in conclusions.
    Content
    Relevant: Having significant and demonstrable bearing on the matter at hand.[Note *][A version of this article has been published in 2006 as a chapter in E.G. Abels & D.A. Nitecki (Eds.), Advances in Librarianship (Vol. 30, pp. 3-71). San Diego: Academic Press. (Saracevic, 2006).] Relevance: The ability as of an information retrieval system to retrieve material that satisfies the needs of the user. - Merriam-Webster Dictionary 2005
    Source
    Journal of the American Society for Information Science and Technology. 58(2007) no.13, S.1915-1933
  19. Harter, S.P.; Hert, C.A.: Evaluation of information retrieval systems : approaches, issues, and methods (1997) 0.01
    0.0077461437 = product of:
      0.054223005 = sum of:
        0.011694863 = weight(_text_:information in 2264) [ClassicSimilarity], result of:
          0.011694863 = score(doc=2264,freq=8.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.27153665 = fieldWeight in 2264, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2264)
        0.04252814 = weight(_text_:retrieval in 2264) [ClassicSimilarity], result of:
          0.04252814 = score(doc=2264,freq=12.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5730491 = fieldWeight in 2264, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2264)
      0.14285715 = coord(2/14)
    
    Abstract
    State of the art review of information retrieval systems, defined as systems retrieving documents a sopposed to numerical data. Explains the classic Cranfield studies that have served as a standard for retrieval testing since the 1960s and discusses the Cranfield model and its relevance based measures of retrieval effectiveness. Details sosme of the problems with the Cranfield instruments and issues of validity and reliability, generalizability, usefulness and basic concepts. Discusses the evaluation of the Internet search engines in light of the Cranfield model, noting the very real differences between batch systems (Cranfield) and interactive systems (Internet). Because the Internet collection is not fixed, it is impossible to determine recall as a measure of retrieval effectiveness. considers future directions in evaluating information retrieval systems
    Source
    Annual review of information science and technology. 32(1997), S.3-94
  20. Daniels, P.J.: Cognitive models in information retrieval : an evaluative review (1986) 0.01
    0.0075786044 = product of:
      0.053050227 = sum of:
        0.013365558 = weight(_text_:information in 833) [ClassicSimilarity], result of:
          0.013365558 = score(doc=833,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3103276 = fieldWeight in 833, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.125 = fieldNorm(doc=833)
        0.03968467 = weight(_text_:retrieval in 833) [ClassicSimilarity], result of:
          0.03968467 = score(doc=833,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 833, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.125 = fieldNorm(doc=833)
      0.14285715 = coord(2/14)
    

Languages

  • e 253
  • d 8
  • m 2
  • pt 1
  • ru 1
  • sp 1
  • More… Less…

Types

  • a 233
  • b 37
  • m 20
  • s 7
  • el 5
  • r 2
  • More… Less…