Search (57 results, page 3 of 3)

  • × theme_ss:"Retrievalstudien"
  • × year_i:[1990 TO 2000}
  1. Sachse, E.; Liebig, M.; Gödert, W.: Automatische Indexierung unter Einbeziehung semantischer Relationen : Ergebnisse des Retrievaltests zum MILOS II-Projekt (1998) 0.01 
    0.007176996 = product of:
  0.021530988 = sum of:
    0.021530988 = weight(_text_:m in 3577) [ClassicSimilarity], result of:
      0.021530988 = score(doc=3577,freq=2.0), product of:
        0.11187479 = queryWeight, product of:
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.044957645 = queryNorm
        0.19245613 = fieldWeight in 3577, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3577)
  0.33333334 = coord(1/3)
  2. Gödert, W.; Liebig, M.: Maschinelle Indexierung auf dem Prüfstand : Ergebnisse eines Retrievaltests zum MILOS II Projekt (1997) 0.01 
    0.007176996 = product of:
  0.021530988 = sum of:
    0.021530988 = weight(_text_:m in 1174) [ClassicSimilarity], result of:
      0.021530988 = score(doc=1174,freq=2.0), product of:
        0.11187479 = queryWeight, product of:
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.044957645 = queryNorm
        0.19245613 = fieldWeight in 1174, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1174)
  0.33333334 = coord(1/3)
  3. Smithson, S.: Information retrieval evaluation in practice : a case study approach (1994) 0.01 
    0.0071063302 = product of:
  0.02131899 = sum of:
    0.02131899 = product of:
      0.04263798 = sum of:
        0.04263798 = weight(_text_:22 in 7302) [ClassicSimilarity], result of:
          0.04263798 = score(doc=7302,freq=2.0), product of:
            0.15743402 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044957645 = queryNorm
            0.2708308 = fieldWeight in 7302, 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=7302)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Abstract
    The evaluation of information retrieval systems is an important yet difficult operation. This paper describes an exploratory evaluation study that takes an interpretive approach to evaluation. The longitudinal study examines evaluation through the information-seeking behaviour of 22 case studies of 'real' users. The eclectic approach to data collection produced behavioral data that is compared with relevance judgements and satisfaction ratings. The study demonstrates considerable variations among the cases, among different evaluation measures within the same case, and among the same measures at different stages within a single case. It is argued that those involved in evaluation should be aware of the difficulties, and base any evaluation on a good understanding of the cases in question
  4. Blair, D.C.: STAIRS Redux : thoughts on the STAIRS evaluation, ten years after (1996) 0.01 
    0.0071063302 = product of:
  0.02131899 = sum of:
    0.02131899 = product of:
      0.04263798 = sum of:
        0.04263798 = weight(_text_:22 in 3002) [ClassicSimilarity], result of:
          0.04263798 = score(doc=3002,freq=2.0), product of:
            0.15743402 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044957645 = queryNorm
            0.2708308 = fieldWeight in 3002, 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=3002)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Journal of the American Society for Information Science. 47(1996) no.1, S.4-22
  5. Losee, R.M.: Determining information retrieval and filtering performance without experimentation (1995) 0.01 
    0.0071063302 = product of:
  0.02131899 = sum of:
    0.02131899 = product of:
      0.04263798 = sum of:
        0.04263798 = weight(_text_:22 in 3368) [ClassicSimilarity], result of:
          0.04263798 = score(doc=3368,freq=2.0), product of:
            0.15743402 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044957645 = queryNorm
            0.2708308 = fieldWeight in 3368, 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=3368)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    22. 2.1996 13:14:10
  6. Brown, M.E.: By any other name : accounting for failure in the naming of subject categories (1995) 0.01 
    0.0071063302 = product of:
  0.02131899 = sum of:
    0.02131899 = product of:
      0.04263798 = sum of:
        0.04263798 = weight(_text_:22 in 5598) [ClassicSimilarity], result of:
          0.04263798 = score(doc=5598,freq=2.0), product of:
            0.15743402 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044957645 = queryNorm
            0.2708308 = fieldWeight in 5598, 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=5598)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    2.11.1996 13:08:22
  7. Gluck, M.: Understanding performance in information systems : blending relevance and competence (1995) 0.01 
    0.006151711 = product of:
  0.018455133 = sum of:
    0.018455133 = weight(_text_:m in 2678) [ClassicSimilarity], result of:
      0.018455133 = score(doc=2678,freq=2.0), product of:
        0.11187479 = queryWeight, product of:
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.044957645 = queryNorm
        0.1649624 = fieldWeight in 2678, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.046875 = fieldNorm(doc=2678)
  0.33333334 = coord(1/3)
  8. Shafique, M.; Chaudhry, A.S.: Intelligent agent-based online information retrieval (1995) 0.01 
    0.006151711 = product of:
  0.018455133 = sum of:
    0.018455133 = weight(_text_:m in 3851) [ClassicSimilarity], result of:
      0.018455133 = score(doc=3851,freq=2.0), product of:
        0.11187479 = queryWeight, product of:
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.044957645 = queryNorm
        0.1649624 = fieldWeight in 3851, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.046875 = fieldNorm(doc=3851)
  0.33333334 = coord(1/3)
  9. Shakir, H.S.; Nagao, M.: Context-sensitive processing of semantic queries in an image database system (1996) 0.01 
    0.006151711 = product of:
  0.018455133 = sum of:
    0.018455133 = weight(_text_:m in 6626) [ClassicSimilarity], result of:
      0.018455133 = score(doc=6626,freq=2.0), product of:
        0.11187479 = queryWeight, product of:
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.044957645 = queryNorm
        0.1649624 = fieldWeight in 6626, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.046875 = fieldNorm(doc=6626)
  0.33333334 = coord(1/3)
  10. Drabenstott, K.M.; Vizine-Goetz, D.: Using subject headings for online retrieval : theory, practice and potential (1994) 0.01 
    0.006151711 = product of:
  0.018455133 = sum of:
    0.018455133 = weight(_text_:m in 386) [ClassicSimilarity], result of:
      0.018455133 = score(doc=386,freq=2.0), product of:
        0.11187479 = queryWeight, product of:
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.044957645 = queryNorm
        0.1649624 = fieldWeight in 386, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.046875 = fieldNorm(doc=386)
  0.33333334 = coord(1/3)
    Type
    m
  11. ¬The Second Text Retrieval Conference : TREC-2 (1995) 0.01 
    0.006151711 = product of:
  0.018455133 = sum of:
    0.018455133 = weight(_text_:m in 1320) [ClassicSimilarity], result of:
      0.018455133 = score(doc=1320,freq=2.0), product of:
        0.11187479 = queryWeight, product of:
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.044957645 = queryNorm
        0.1649624 = fieldWeight in 1320, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.046875 = fieldNorm(doc=1320)
  0.33333334 = coord(1/3)
    Content
    Enthält die Beiträge: HARMAN, D.: Overview of the Second Text Retrieval Conference (TREC-2); SPRACK JONES, K.: Reflections on TREC; BUCKLEY, C., J. ALLAN u. G. SALTON: Automatic routing and retrieval using SMART: TREC-2; CALLAN, J.P., W.B. CROFT u. J. BROGLIO: TREC and TIPSTER experiments with INQUERY; ROBERTSON, S.R., S. WALKER u. M.M. HANCOCK-BEAULIEU: Large test collection experiments on an operational, interactive system: OKAPI at TREC; ZOBEL, J., A. MOFFAT, R. WILKINSON u. R. SACKS-DAVIS: Efficient retrieval of partial documents; METTLER, M. u. F. NORDBY: TREC routing experiments with the TRW/Paracel Fast Data Finder; EVANS, D.A. u. R.G. LEFFERTS: CLARIT-TREC experiments; STRZALKOWSKI, T.: Natural language information retrieval; CAID, W.R., S.T. DUMAIS u. S.I. GALLANT: Learned vector-space models for document retrieval; BELKIN, N.J. P. KANTOR, E.A. FOX u. J.A. SHAW: Combining the evidence of multiple query representations for information retrieval
  12. Wood, F.; Ford, N.; Miller, D.; Sobczyk, G.; Duffin, R.: Information skills, searching behaviour and cognitive styles for student-centred learning : a computer-assisted learning approach (1996) 0.01 
    0.00609114 = product of:
  0.01827342 = sum of:
    0.01827342 = product of:
      0.03654684 = sum of:
        0.03654684 = weight(_text_:22 in 4341) [ClassicSimilarity], result of:
          0.03654684 = score(doc=4341,freq=2.0), product of:
            0.15743402 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044957645 = queryNorm
            0.23214069 = fieldWeight in 4341, 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=4341)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Journal of information science. 22(1996) no.2, S.79-92
  13. Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996) 0.01 
    0.00609114 = product of:
  0.01827342 = sum of:
    0.01827342 = product of:
      0.03654684 = sum of:
        0.03654684 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
          0.03654684 = score(doc=6967,freq=2.0), product of:
            0.15743402 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044957645 = queryNorm
            0.23214069 = fieldWeight in 6967, 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=6967)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    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
  14. Gluck, M.: Exploring the relationship between user satisfaction and relevance in information systems (1996) 0.01 
    0.005126426 = product of:
  0.015379278 = sum of:
    0.015379278 = weight(_text_:m in 4082) [ClassicSimilarity], result of:
      0.015379278 = score(doc=4082,freq=2.0), product of:
        0.11187479 = queryWeight, product of:
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.044957645 = queryNorm
        0.13746867 = fieldWeight in 4082, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4082)
  0.33333334 = coord(1/3)
  15. Robertson, S.E.; Sparck Jones, K.: Simple, proven approaches to text retrieval (1997) 0.01 
    0.005126426 = product of:
  0.015379278 = sum of:
    0.015379278 = weight(_text_:m in 4532) [ClassicSimilarity], result of:
      0.015379278 = score(doc=4532,freq=2.0), product of:
        0.11187479 = queryWeight, product of:
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.044957645 = queryNorm
        0.13746867 = fieldWeight in 4532, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4532)
  0.33333334 = coord(1/3)
    Abstract
    This technical note describes straightforward techniques for document indexing and retrieval that have been solidly established through extensive testing and are easy to apply. They are useful for many different types of text material, are viable for very large files, and have the advantage that they do not require special skills or training for searching, but are easy for end users. The document and text retrieval methods described here have a sound theoretical basis, are well established by extensive testing, and the ideas involved are now implemented in some commercial retrieval systems. Testing in the last few years has, in particular, shown that the methods presented here work very well with full texts, not only title and abstracts, and with large files of texts containing three quarters of a million documents. These tests, the TREC Tests (see Harman 1993 - 1997; IP&M 1995), have been rigorous comparative evaluations involving many different approaches to information retrieval. These techniques depend an the use of simple terms for indexing both request and document texts; an term weighting exploiting statistical information about term occurrences; an scoring for request-document matching, using these weights, to obtain a ranked search output; and an relevance feedback to modify request weights or term sets in iterative searching. The normal implementation is via an inverted file organisation using a term list with linked document identifiers, plus counting data, and pointers to the actual texts. The user's request can be a word list, phrases, sentences or extended text.
  16. Belkin, N.J.: ¬An overview of results from Rutgers' investigations of interactive information retrieval (1998) 0.01 
    0.0050759506 = product of:
  0.015227851 = sum of:
    0.015227851 = product of:
      0.030455703 = sum of:
        0.030455703 = weight(_text_:22 in 2339) [ClassicSimilarity], result of:
          0.030455703 = score(doc=2339,freq=2.0), product of:
            0.15743402 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044957645 = queryNorm
            0.19345059 = fieldWeight in 2339, 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=2339)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    22. 9.1997 19:16:05
  17. Cross-language information retrieval (1998) 0.00 
    0.002563213 = product of:
  0.007689639 = sum of:
    0.007689639 = weight(_text_:m in 6299) [ClassicSimilarity], result of:
      0.007689639 = score(doc=6299,freq=2.0), product of:
        0.11187479 = queryWeight, product of:
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.044957645 = queryNorm
        0.06873433 = fieldWeight in 6299, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.4884486 = idf(docFreq=9980, maxDocs=44218)
          0.01953125 = fieldNorm(doc=6299)
  0.33333334 = coord(1/3)
    Type
    m

Authors

Languages

Types

  • a 48
  • m 3
  • r 3
  • el 2
  • s 2
  • More… Less…

Themes