Search (40 results, page 1 of 2)

  • × author_ss:"Salton, G."
  1. Salton, G.: Another look at automatic text-retrieval systems (1986) 0.02
    0.019436456 = product of:
      0.09070346 = sum of:
        0.02688897 = weight(_text_:system in 1356) [ClassicSimilarity], result of:
          0.02688897 = score(doc=1356,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.3479797 = fieldWeight in 1356, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.078125 = fieldNorm(doc=1356)
        0.008353474 = weight(_text_:information in 1356) [ClassicSimilarity], result of:
          0.008353474 = score(doc=1356,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.19395474 = fieldWeight in 1356, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=1356)
        0.055461008 = weight(_text_:retrieval in 1356) [ClassicSimilarity], result of:
          0.055461008 = score(doc=1356,freq=10.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.74731416 = fieldWeight in 1356, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=1356)
      0.21428572 = coord(3/14)
    
    Footnote
    Bezugnahme auf: Blair, D.C.: An evaluation of retrieval effectiveness for a full-text document-retrieval system. Comm. ACM 28(1985) S.280-299. - Vgl. auch: Blair, D.C.: Full text retrieval ... Int. Class. 13(1986) S.18-23; Blair, D.C., M.E. Maron: full-text information retrieval ... Inf. Proc. Man. 26(1990) S.437-447.
  2. Salton, G.: SMART System: 1961-1976 (2009) 0.01
    0.014557195 = product of:
      0.067933574 = sum of:
        0.030421399 = weight(_text_:system in 3879) [ClassicSimilarity], result of:
          0.030421399 = score(doc=3879,freq=4.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.3936941 = fieldWeight in 3879, 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=3879)
        0.009450877 = weight(_text_:information in 3879) [ClassicSimilarity], result of:
          0.009450877 = score(doc=3879,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.21943474 = fieldWeight in 3879, 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=3879)
        0.028061297 = weight(_text_:retrieval in 3879) [ClassicSimilarity], result of:
          0.028061297 = score(doc=3879,freq=4.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.37811437 = fieldWeight in 3879, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=3879)
      0.21428572 = coord(3/14)
    
    Abstract
    While a number of researchers had experimented during the 1950's on automatic indexing and retrieval in various forms, it was Gerard Salton who brought the information retrieval experimental paradigm to full fruition, with his "SMART" system. His work has been enormously influential.
    Source
    Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates
  3. Salton, G.: ¬The state of retrieval system evaluation (1992) 0.01
    0.013406118 = product of:
      0.062561885 = sum of:
        0.021511177 = weight(_text_:system in 5250) [ClassicSimilarity], result of:
          0.021511177 = score(doc=5250,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.27838376 = fieldWeight in 5250, 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=5250)
        0.006682779 = weight(_text_:information in 5250) [ClassicSimilarity], result of:
          0.006682779 = score(doc=5250,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.1551638 = fieldWeight in 5250, 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=5250)
        0.03436793 = weight(_text_:retrieval in 5250) [ClassicSimilarity], result of:
          0.03436793 = score(doc=5250,freq=6.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.46309367 = fieldWeight in 5250, 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=5250)
      0.21428572 = coord(3/14)
    
    Abstract
    Substatioal misgivings have been voiced over the years about the methodologies used to evaluate IR procedures and about the credibility of many of the available test results. In this note, an attempt is made to review the state of retrieval evaluation and to separate certain misgivings about the design of retrieval tests from conclusions that can legitimately be drawn from the evaluation results
    Source
    Information processing and management. 28(1992) no.4, S.441-449
  4. Salton, G.: Thoughts about modern retrieval technologies (1988) 0.01
    0.012493712 = product of:
      0.05830399 = sum of:
        0.026618723 = weight(_text_:system in 1522) [ClassicSimilarity], result of:
          0.026618723 = score(doc=1522,freq=4.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.34448233 = fieldWeight in 1522, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1522)
        0.014323224 = weight(_text_:information in 1522) [ClassicSimilarity], result of:
          0.014323224 = score(doc=1522,freq=12.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3325631 = fieldWeight in 1522, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1522)
        0.017362041 = weight(_text_:retrieval in 1522) [ClassicSimilarity], result of:
          0.017362041 = score(doc=1522,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.23394634 = fieldWeight in 1522, 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=1522)
      0.21428572 = coord(3/14)
    
    Abstract
    Paper presented at the 30th Annual Conference of the National Federation of Astracting and Information Services, Philadelphia, 28 Feb-2 Mar 88. In recent years, the amount and the variety of available machine-readable data, new technologies have been introduced, such as high density storage devices, and fancy graphic displays useful for information transformation and access. New approaches have also been considered for processing the stored data based on the construction of knowledge bases representing the contents and structure of the information, and the use of expert system techniques to control the user-system interactions. Provides a brief evaluation of the new information processing technologies, and of the software methods proposed for information manipulation.
    Source
    Information services and use. 8(1988) no.2/3/4, S.107-113
  5. Lesk, M.E.; Salton, G.: Relevance assements and retrieval system evaluation (1969) 0.01
    0.012249373 = product of:
      0.057163738 = sum of:
        0.018822279 = weight(_text_:system in 4151) [ClassicSimilarity], result of:
          0.018822279 = score(doc=4151,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.2435858 = fieldWeight in 4151, 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=4151)
        0.008269517 = weight(_text_:information in 4151) [ClassicSimilarity], result of:
          0.008269517 = score(doc=4151,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.1920054 = fieldWeight in 4151, 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=4151)
        0.03007194 = weight(_text_:retrieval in 4151) [ClassicSimilarity], result of:
          0.03007194 = score(doc=4151,freq=6.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.40520695 = fieldWeight in 4151, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4151)
      0.21428572 = coord(3/14)
    
    Abstract
    Two widerly used criteria for evaluating the effectiveness of information retrieval systems are, respectively, the recall and the precision. Since the determiniation of these measures is dependent on a distinction between documents which are relevant to a given query and documents which are not relevant to that query, it has sometimes been claimed that an accurate, generally valid evaluation cannot be based on recall and precision measure. A study was made to determine the effect of variations in relevance assesments do not produce significant variations in average recall and precision. It thus appears that properly computed recall and precision data may represent effectiveness indicators which are gemerally valid for many distinct user classes.
    Source
    Information storage and retrieval. 4(1969), S.343-359
  6. Salton, G.: Automatic processing of foreign language documents (1985) 0.01
    0.011666335 = product of:
      0.054442897 = sum of:
        0.021511177 = weight(_text_:system in 3650) [ClassicSimilarity], result of:
          0.021511177 = score(doc=3650,freq=8.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.27838376 = fieldWeight in 3650, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03125 = fieldNorm(doc=3650)
        0.006682779 = weight(_text_:information in 3650) [ClassicSimilarity], result of:
          0.006682779 = score(doc=3650,freq=8.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.1551638 = fieldWeight in 3650, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=3650)
        0.02624894 = weight(_text_:retrieval in 3650) [ClassicSimilarity], result of:
          0.02624894 = score(doc=3650,freq=14.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.3536936 = fieldWeight in 3650, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.03125 = fieldNorm(doc=3650)
      0.21428572 = coord(3/14)
    
    Abstract
    The attempt to computerize a process, such as indexing, abstracting, classifying, or retrieving information, begins with an analysis of the process into its intellectual and nonintellectual components. That part of the process which is amenable to computerization is mechanical or algorithmic. What is not is intellectual or creative and requires human intervention. Gerard Salton has been an innovator, experimenter, and promoter in the area of mechanized information systems since the early 1960s. He has been particularly ingenious at analyzing the process of information retrieval into its algorithmic components. He received a doctorate in applied mathematics from Harvard University before moving to the computer science department at Cornell, where he developed a prototype automatic retrieval system called SMART. Working with this system he and his students contributed for over a decade to our theoretical understanding of the retrieval process. On a more practical level, they have contributed design criteria for operating retrieval systems. The following selection presents one of the early descriptions of the SMART system; it is valuable as it shows the direction automatic retrieval methods were to take beyond simple word-matching techniques. These include various word normalization techniques to improve recall, for instance, the separation of words into stems and affixes; the correlation and clustering, using statistical association measures, of related terms; and the identification, using a concept thesaurus, of synonymous, broader, narrower, and sibling terms. They include, as weIl, techniques, both linguistic and statistical, to deal with the thorny problem of how to automatically extract from texts index terms that consist of more than one word. They include weighting techniques and various documentrequest matching algorithms. Significant among the latter are those which produce a retrieval output of citations ranked in relevante order. During the 1970s, Salton and his students went an to further refine these various techniques, particularly the weighting and statistical association measures. Many of their early innovations seem commonplace today. Some of their later techniques are still ahead of their time and await technological developments for implementation. The particular focus of the selection that follows is an the evaluation of a particular component of the SMART system, a multilingual thesaurus. By mapping English language expressions and their German equivalents to a common concept number, the thesaurus permitted the automatic processing of German language documents against English language queries and vice versa. The results of the evaluation, as it turned out, were somewhat inconclusive. However, this SMART experiment suggested in a bold and optimistic way how one might proceed to answer such complex questions as What is meant by retrieval language compatability? How it is to be achieved, and how evaluated?
    Footnote
    Original in: Journal of the American Society for Information Science 21(1970) no.3, S.187-194.
  7. Salton, G.; Rijsbergen, C.J. van; Maron, M.E.: Panel on key issues in information retrieval (1983) 0.01
    0.009281856 = product of:
      0.06497299 = sum of:
        0.016369399 = weight(_text_:information in 7410) [ClassicSimilarity], result of:
          0.016369399 = score(doc=7410,freq=12.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.38007212 = fieldWeight in 7410, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=7410)
        0.04860359 = weight(_text_:retrieval in 7410) [ClassicSimilarity], result of:
          0.04860359 = score(doc=7410,freq=12.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.6549133 = fieldWeight in 7410, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=7410)
      0.14285715 = coord(2/14)
    
    Abstract
    Contribution to an issue devoted to the 6th Annual International Conference of the Special Interest Group on Information Retrieval of the Association for Computing Machinery (USA) held at the National Library of Medicine, Bethesda, Maryland, from 6-8 June 83. The following papers were presented in session 12 which was a panel on key issues in information retrieval: SALTON, G.: Research problems in automatic information retrieval; RIJSBERGEN, C.J. van: Information retrieval: new directions, old solutions; MARON, M.E.: Open problems in information retrieval
  8. Salton, G.: ¬The Smart environment for retrieval systeme valuation : advantages and problem areas (1981) 0.01
    0.008686019 = product of:
      0.060802132 = sum of:
        0.011694863 = weight(_text_:information in 3159) [ClassicSimilarity], result of:
          0.011694863 = score(doc=3159,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.27153665 = fieldWeight in 3159, 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=3159)
        0.04910727 = weight(_text_:retrieval in 3159) [ClassicSimilarity], result of:
          0.04910727 = score(doc=3159,freq=4.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.6617001 = fieldWeight in 3159, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.109375 = fieldNorm(doc=3159)
      0.14285715 = coord(2/14)
    
    Source
    Information retrieval experiments. Ed.: K. Sparck Jones
  9. Salton, G.: Historical note: the past thirty years in information retrieval (1987) 0.01
    0.00836949 = product of:
      0.058586422 = sum of:
        0.018901754 = weight(_text_:information in 3910) [ClassicSimilarity], result of:
          0.018901754 = score(doc=3910,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.43886948 = fieldWeight in 3910, 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=3910)
        0.03968467 = weight(_text_:retrieval in 3910) [ClassicSimilarity], result of:
          0.03968467 = score(doc=3910,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 3910, 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=3910)
      0.14285715 = coord(2/14)
    
    Source
    Journal of the American Society for Information Science. 38(1987) no.5, S.375-380
  10. Salton, G.; Fox, E.A.; Voorhees, E.: Advanced feedback methods in information retrieval (1985) 0.01
    0.00836949 = product of:
      0.058586422 = sum of:
        0.018901754 = weight(_text_:information in 5445) [ClassicSimilarity], result of:
          0.018901754 = score(doc=5445,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.43886948 = fieldWeight in 5445, 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=5445)
        0.03968467 = weight(_text_:retrieval in 5445) [ClassicSimilarity], result of:
          0.03968467 = score(doc=5445,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 5445, 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=5445)
      0.14285715 = coord(2/14)
    
    Source
    Journal of the American Society for Information Science. 36(1985), S.200-210
  11. Salton, G.; Waldstein, R.H.: Term relevance weights in on-line information retrieval (1978) 0.01
    0.00836949 = product of:
      0.058586422 = sum of:
        0.018901754 = weight(_text_:information in 5484) [ClassicSimilarity], result of:
          0.018901754 = score(doc=5484,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.43886948 = fieldWeight in 5484, 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=5484)
        0.03968467 = weight(_text_:retrieval in 5484) [ClassicSimilarity], result of:
          0.03968467 = score(doc=5484,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 5484, 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=5484)
      0.14285715 = coord(2/14)
    
    Source
    Information processing and management. 14(1978), S.20-35
  12. Salton, G.; McGill, M. J.: Information Retrieval: Grundlegendes für Informationswissenschaftler (1987) 0.01
    0.00820408 = product of:
      0.057428557 = sum of:
        0.014468643 = weight(_text_:information in 8648) [ClassicSimilarity], result of:
          0.014468643 = score(doc=8648,freq=6.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3359395 = fieldWeight in 8648, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=8648)
        0.042959914 = weight(_text_:retrieval in 8648) [ClassicSimilarity], result of:
          0.042959914 = score(doc=8648,freq=6.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5788671 = fieldWeight in 8648, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=8648)
      0.14285715 = coord(2/14)
    
    Content
    Enthält die Kapitel: Information Retrieval: eine Einführung; Invertierte Dateisysteme; Textanalyse und automatisches Indexieren; Die experimentellen Retrievalsysteme SMART und SIRE; Die Bewertung von Retrievalsystemen; Fortgeschrittene Retrievaltechniken; Verarbeitung natürlicher Sprache; Informationstechnologie: Hardware und Software; Datenbankmanagementsysteme; Zukünftige Entwicklungen im Information Retrieval
  13. Salton, G.: Automatic text processing : the transformation, analysis, and retrieval of information by computer (1989) 0.01
    0.00820408 = product of:
      0.057428557 = sum of:
        0.014468643 = weight(_text_:information in 1307) [ClassicSimilarity], result of:
          0.014468643 = score(doc=1307,freq=6.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3359395 = fieldWeight in 1307, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=1307)
        0.042959914 = weight(_text_:retrieval in 1307) [ClassicSimilarity], result of:
          0.042959914 = score(doc=1307,freq=6.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5788671 = fieldWeight in 1307, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=1307)
      0.14285715 = coord(2/14)
    
    COMPASS
    Information retrieval / Use of / On-line computers
    Subject
    Information retrieval / Use of / On-line computers
  14. Salton, G.; Buckley, C.: Term-weighting approaches in automatic text retrieval (1988) 0.01
    0.008038323 = product of:
      0.05626826 = sum of:
        0.014176315 = weight(_text_:information in 1938) [ClassicSimilarity], result of:
          0.014176315 = score(doc=1938,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3291521 = fieldWeight in 1938, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=1938)
        0.042091947 = weight(_text_:retrieval in 1938) [ClassicSimilarity], result of:
          0.042091947 = score(doc=1938,freq=4.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5671716 = fieldWeight in 1938, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.09375 = fieldNorm(doc=1938)
      0.14285715 = coord(2/14)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.323-328.
    Source
    Information processing and management. 24(1988) no.5, S.513-523
  15. Salton, G.; Fox, E.: Extended Boolean information retrieval (1983) 0.01
    0.0075786044 = product of:
      0.053050227 = sum of:
        0.013365558 = weight(_text_:information in 1137) [ClassicSimilarity], result of:
          0.013365558 = score(doc=1137,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3103276 = fieldWeight in 1137, 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=1137)
        0.03968467 = weight(_text_:retrieval in 1137) [ClassicSimilarity], result of:
          0.03968467 = score(doc=1137,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 1137, 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=1137)
      0.14285715 = coord(2/14)
    
  16. Salton, G.; McGill, M. J.: Introduction to modern information retrieval (1983) 0.01
    0.0075786044 = product of:
      0.053050227 = sum of:
        0.013365558 = weight(_text_:information in 2328) [ClassicSimilarity], result of:
          0.013365558 = score(doc=2328,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3103276 = fieldWeight in 2328, 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=2328)
        0.03968467 = weight(_text_:retrieval in 2328) [ClassicSimilarity], result of:
          0.03968467 = score(doc=2328,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 2328, 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=2328)
      0.14285715 = coord(2/14)
    
  17. Salton, G.: Expert systems and information retrieval (1987) 0.01
    0.0075786044 = product of:
      0.053050227 = sum of:
        0.013365558 = weight(_text_:information in 2837) [ClassicSimilarity], result of:
          0.013365558 = score(doc=2837,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3103276 = fieldWeight in 2837, 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=2837)
        0.03968467 = weight(_text_:retrieval in 2837) [ClassicSimilarity], result of:
          0.03968467 = score(doc=2837,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 2837, 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=2837)
      0.14285715 = coord(2/14)
    
  18. Yu, C.T.; Salton, G.: Effective information retrieval using term accuracy (1971) 0.01
    0.0075786044 = product of:
      0.053050227 = sum of:
        0.013365558 = weight(_text_:information in 5485) [ClassicSimilarity], result of:
          0.013365558 = score(doc=5485,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3103276 = fieldWeight in 5485, 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=5485)
        0.03968467 = weight(_text_:retrieval in 5485) [ClassicSimilarity], result of:
          0.03968467 = score(doc=5485,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5347345 = fieldWeight in 5485, 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=5485)
      0.14285715 = coord(2/14)
    
  19. Salton, G.: Mathematics and information retrieval (1979) 0.01
    0.0072167963 = product of:
      0.05051757 = sum of:
        0.011694863 = weight(_text_:information in 5467) [ClassicSimilarity], result of:
          0.011694863 = score(doc=5467,freq=8.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.27153665 = fieldWeight in 5467, 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=5467)
        0.038822707 = weight(_text_:retrieval in 5467) [ClassicSimilarity], result of:
          0.038822707 = score(doc=5467,freq=10.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.5231199 = fieldWeight in 5467, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5467)
      0.14285715 = coord(2/14)
    
    Abstract
    The development of a given discipline in science and technology often depends on the availability of theorie capable of describing the processes which control the field and of modelling the interactions between the processes. The absence of an accepted theory of information retrieval has benn blamed for the relative disorder and the lack of technical advances in the area. The main mathematical approaches to information retrieval are examined in this study, including both algebraic and probabilistic models, and the difficulties which impede the formalization of information retrieval processes are described. A number of developments are covered where new theoretical understandings have directly led to the improvemenet of retrieval techniques and operations
  20. Salton, G.: Experiments in automatic thesaurus construction for information retrieval (1972) 0.01
    0.0066312784 = product of:
      0.046418946 = sum of:
        0.011694863 = weight(_text_:information in 5314) [ClassicSimilarity], result of:
          0.011694863 = score(doc=5314,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.27153665 = fieldWeight in 5314, 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=5314)
        0.034724083 = weight(_text_:retrieval in 5314) [ClassicSimilarity], result of:
          0.034724083 = score(doc=5314,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.46789268 = fieldWeight in 5314, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.109375 = fieldNorm(doc=5314)
      0.14285715 = coord(2/14)