Search (81 results, page 1 of 5)

  • × theme_ss:"Retrievalstudien"
  1. Smithson, S.: Information retrieval evaluation in practice : a case study approach (1994) 0.10 
    0.09687077 = product of:
  0.14530616 = sum of:
    0.1317869 = weight(_text_:205 in 7302) [ClassicSimilarity], result of:
      0.1317869 = score(doc=7302,freq=2.0), product of:
        0.26994494 = queryWeight, product of:
          6.312392 = idf(docFreq=217, maxDocs=44218)
          0.042764284 = queryNorm
        0.48819917 = fieldWeight in 7302, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.312392 = idf(docFreq=217, maxDocs=44218)
          0.0546875 = fieldNorm(doc=7302)
    0.013519264 = product of:
      0.04055779 = sum of:
        0.04055779 = weight(_text_:22 in 7302) [ClassicSimilarity], result of:
          0.04055779 = score(doc=7302,freq=2.0), product of:
            0.14975324 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042764284 = 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)
      0.33333334 = coord(1/3)
  0.6666667 = coord(2/3)
    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
    Source
    Information processing and management. 30(1994) no.2, S.205-221
  2. Wildemuth, B.M.; Jacob, E.K.; Fullington, A.;; Bliek, R. de; Friedman, C.P.: ¬A detailed analysis of end-user search behaviours (1991) 0.03 
    0.031377833 = product of:
  0.0941335 = sum of:
    0.0941335 = weight(_text_:205 in 2423) [ClassicSimilarity], result of:
      0.0941335 = score(doc=2423,freq=2.0), product of:
        0.26994494 = queryWeight, product of:
          6.312392 = idf(docFreq=217, maxDocs=44218)
          0.042764284 = queryNorm
        0.3487137 = fieldWeight in 2423, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.312392 = idf(docFreq=217, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2423)
  0.33333334 = coord(1/3)
    Abstract
    Search statements in this revision process can be viewed as a 'move' in the overall search strategy. Very little is known about how end users develop and revise their search strategies. A study was conducted to analyse the moves made in 244 data base searches conducted by 26 medical students at the University of North Carolina at Chapel Hill. Students search INQUIRER, a data base of facts and concepts in microbiology. The searches were conducted during a 3-week period in spring 1990 and were recorded by the INQUIRER system. Each search statement was categorised, using Fidel's online searching moves (S. Online review 9(1985) S.61-74) and Bates' search tactics (s. JASIS 30(1979) S.205-214). Further analyses indicated that the most common moves were Browse/Specity, Select Exhaust, Intersect, and Vary, and that selection of moves varied by student and by problem. Analysis of search tactics (combinations of moves) identified 5 common search approaches. The results of this study have implcations for future research on search behaviours, for thedesign of system interfaces and data base structures, and for the training of end users
  3. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.02 
    0.020694284 = product of:
  0.06208285 = sum of:
    0.06208285 = product of:
      0.09312427 = sum of:
        0.04677251 = weight(_text_:29 in 5002) [ClassicSimilarity], result of:
          0.04677251 = score(doc=5002,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.31092256 = fieldWeight in 5002, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0625 = fieldNorm(doc=5002)
        0.046351764 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
          0.046351764 = score(doc=5002,freq=2.0), product of:
            0.14975324 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042764284 = queryNorm
            0.30952093 = fieldWeight in 5002, 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=5002)
      0.6666667 = coord(2/3)
  0.33333334 = coord(1/3)
    Date
    19. 3.1996 11:22:12
    Source
    Journal of documentation. 29(1973) no.3, S.251-257
  4. Chu, H.: Factors affecting relevance judgment : a report from TREC Legal track (2011) 0.01 
    0.012933928 = product of:
  0.03880178 = sum of:
    0.03880178 = product of:
      0.058202673 = sum of:
        0.02923282 = weight(_text_:29 in 4540) [ClassicSimilarity], result of:
          0.02923282 = score(doc=4540,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.19432661 = fieldWeight in 4540, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4540)
        0.028969852 = weight(_text_:22 in 4540) [ClassicSimilarity], result of:
          0.028969852 = score(doc=4540,freq=2.0), product of:
            0.14975324 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042764284 = queryNorm
            0.19345059 = fieldWeight in 4540, 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=4540)
      0.6666667 = coord(2/3)
  0.33333334 = coord(1/3)
    Date
    12. 7.2011 18:29:22
  5. Hofstede, M.: Literatuur over onderwerpen zoeken in de OPC (1994) 0.01 
    0.0103938915 = product of:
  0.031181674 = sum of:
    0.031181674 = product of:
      0.09354502 = sum of:
        0.09354502 = weight(_text_:29 in 5400) [ClassicSimilarity], result of:
          0.09354502 = score(doc=5400,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.6218451 = fieldWeight in 5400, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.125 = fieldNorm(doc=5400)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Source
    CRI bulletin. 29(1994), Sept., S.14-15
  6. Hancock-Beaulieu, M.; McKenzie, L.; Irving, A.: Evaluative protocols for searching behaviour in online library catalogues (1991) 0.01 
    0.0090946555 = product of:
  0.027283965 = sum of:
    0.027283965 = product of:
      0.08185189 = sum of:
        0.08185189 = weight(_text_:29 in 347) [ClassicSimilarity], result of:
          0.08185189 = score(doc=347,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.5441145 = fieldWeight in 347, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=347)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    23. 1.1999 19:52:29
  7. Harman, D.K.: ¬The TREC test collections (2005) 0.01 
    0.0090946555 = product of:
  0.027283965 = sum of:
    0.027283965 = product of:
      0.08185189 = sum of:
        0.08185189 = weight(_text_:29 in 4637) [ClassicSimilarity], result of:
          0.08185189 = score(doc=4637,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.5441145 = fieldWeight in 4637, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=4637)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 3.1996 18:16:49
  8. Buckley, C.; Voorhees, E.M.: Retrieval system evaluation (2005) 0.01 
    0.0090946555 = product of:
  0.027283965 = sum of:
    0.027283965 = product of:
      0.08185189 = sum of:
        0.08185189 = weight(_text_:29 in 648) [ClassicSimilarity], result of:
          0.08185189 = score(doc=648,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.5441145 = fieldWeight in 648, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=648)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 3.1996 18:16:49
  9. Voiskunskii, V.G.: Evaluation of search results (2000) 0.01 
    0.0090946555 = product of:
  0.027283965 = sum of:
    0.027283965 = product of:
      0.08185189 = sum of:
        0.08185189 = weight(_text_:29 in 4670) [ClassicSimilarity], result of:
          0.08185189 = score(doc=4670,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.5441145 = fieldWeight in 4670, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=4670)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Source
    Encyclopedia of library and information science. Vol.66, [=Suppl.29]
  10. Harman, D.K.: ¬The TREC ad hoc experiments (2005) 0.01 
    0.0090946555 = product of:
  0.027283965 = sum of:
    0.027283965 = product of:
      0.08185189 = sum of:
        0.08185189 = weight(_text_:29 in 5711) [ClassicSimilarity], result of:
          0.08185189 = score(doc=5711,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.5441145 = fieldWeight in 5711, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=5711)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 3.1996 18:16:49
  11. Robertson, S.; Callan, J.: Routing and filtering (2005) 0.01 
    0.0090946555 = product of:
  0.027283965 = sum of:
    0.027283965 = product of:
      0.08185189 = sum of:
        0.08185189 = weight(_text_:29 in 4688) [ClassicSimilarity], result of:
          0.08185189 = score(doc=4688,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.5441145 = fieldWeight in 4688, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=4688)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 3.1996 18:16:49
  12. Beaulieu, M.: Approaches to user-based studies in information seeking and retrieval : a Sheffield perspective (2003) 0.01 
    0.0090946555 = product of:
  0.027283965 = sum of:
    0.027283965 = product of:
      0.08185189 = sum of:
        0.08185189 = weight(_text_:29 in 4692) [ClassicSimilarity], result of:
          0.08185189 = score(doc=4692,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.5441145 = fieldWeight in 4692, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=4692)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Source
    Journal of information science. 29(2003) no.4, S.239-248
  13. Harman, D.K.: Beyond English (2005) 0.01 
    0.0090946555 = product of:
  0.027283965 = sum of:
    0.027283965 = product of:
      0.08185189 = sum of:
        0.08185189 = weight(_text_:29 in 4850) [ClassicSimilarity], result of:
          0.08185189 = score(doc=4850,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.5441145 = fieldWeight in 4850, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=4850)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 3.1996 18:16:49
  14. Voorhees, E.M.; Garofolo, J.S.: Retrieving noisy text (2005) 0.01 
    0.0090946555 = product of:
  0.027283965 = sum of:
    0.027283965 = product of:
      0.08185189 = sum of:
        0.08185189 = weight(_text_:29 in 5084) [ClassicSimilarity], result of:
          0.08185189 = score(doc=5084,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.5441145 = fieldWeight in 5084, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=5084)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 3.1996 18:16:49
  15. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.01 
    0.009012843 = product of:
  0.027038528 = sum of:
    0.027038528 = product of:
      0.08111558 = sum of:
        0.08111558 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
          0.08111558 = score(doc=262,freq=2.0), product of:
            0.14975324 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042764284 = queryNorm
            0.5416616 = fieldWeight in 262, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=262)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    20.10.2000 12:22:23
  16. Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998) 0.01 
    0.009012843 = product of:
  0.027038528 = sum of:
    0.027038528 = product of:
      0.08111558 = sum of:
        0.08111558 = weight(_text_:22 in 6418) [ClassicSimilarity], result of:
          0.08111558 = score(doc=6418,freq=2.0), product of:
            0.14975324 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042764284 = queryNorm
            0.5416616 = fieldWeight in 6418, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=6418)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Source
    Online. 22(1998) no.6, S.57-58
  17. Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000) 0.01 
    0.009012843 = product of:
  0.027038528 = sum of:
    0.027038528 = product of:
      0.08111558 = sum of:
        0.08111558 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
          0.08111558 = score(doc=6438,freq=2.0), product of:
            0.14975324 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042764284 = queryNorm
            0.5416616 = fieldWeight in 6438, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=6438)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    11. 8.2001 16:22:19
  18. Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990) 0.01 
    0.009012843 = product of:
  0.027038528 = sum of:
    0.027038528 = product of:
      0.08111558 = sum of:
        0.08111558 = weight(_text_:22 in 5089) [ClassicSimilarity], result of:
          0.08111558 = score(doc=5089,freq=2.0), product of:
            0.14975324 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042764284 = queryNorm
            0.5416616 = fieldWeight in 5089, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=5089)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    22. 7.2006 18:43:54
  19. Voorhees, E.M.: Question answering in TREC (2005) 0.01 
    0.0077954186 = product of:
  0.023386255 = sum of:
    0.023386255 = product of:
      0.070158765 = sum of:
        0.070158765 = weight(_text_:29 in 6487) [ClassicSimilarity], result of:
          0.070158765 = score(doc=6487,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.46638384 = fieldWeight in 6487, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.09375 = fieldNorm(doc=6487)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Date
    29. 3.1996 18:16:49
  20. TREC-1: The first text retrieval conference : Rockville, MD, USA, 4-6 Nov. 1993 (1993) 0.01 
    0.0077954186 = product of:
  0.023386255 = sum of:
    0.023386255 = product of:
      0.070158765 = sum of:
        0.070158765 = weight(_text_:29 in 1315) [ClassicSimilarity], result of:
          0.070158765 = score(doc=1315,freq=2.0), product of:
            0.15043138 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042764284 = queryNorm
            0.46638384 = fieldWeight in 1315, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.09375 = fieldNorm(doc=1315)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)
    Source
    Information processing and management. 29(1993) no.4, S.411-521

Authors

Years

Languages

  • e 72
  • d 5
  • f 1
  • fi 1
  • nl 1
  • More… Less…

Types

  • a 74
  • s 5
  • m 3
  • el 1
  • r 1
  • More… Less…

Themes

Subjects

Classifications