Search (36 results, page 1 of 2)

  • × theme_ss:"Retrievalstudien"
  1. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.01 
    0.005773678 = product of:
  0.023094712 = sum of:
    0.023094712 = product of:
      0.06928413 = sum of:
        0.06928413 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
          0.06928413 = score(doc=262,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = 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)
  0.25 = coord(1/4)
    Date
    20.10.2000 12:22:23
  2. Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998) 0.01 
    0.005773678 = product of:
  0.023094712 = sum of:
    0.023094712 = product of:
      0.06928413 = sum of:
        0.06928413 = weight(_text_:22 in 6418) [ClassicSimilarity], result of:
          0.06928413 = score(doc=6418,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = 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)
  0.25 = coord(1/4)
    Source
    Online. 22(1998) no.6, S.57-58
  3. Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000) 0.01 
    0.005773678 = product of:
  0.023094712 = sum of:
    0.023094712 = product of:
      0.06928413 = sum of:
        0.06928413 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
          0.06928413 = score(doc=6438,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = 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)
  0.25 = coord(1/4)
    Date
    11. 8.2001 16:22:19
  4. Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990) 0.01 
    0.005773678 = product of:
  0.023094712 = sum of:
    0.023094712 = product of:
      0.06928413 = sum of:
        0.06928413 = weight(_text_:22 in 5089) [ClassicSimilarity], result of:
          0.06928413 = score(doc=5089,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = 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)
  0.25 = coord(1/4)
    Date
    22. 7.2006 18:43:54
  5. Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997) 0.00 
    0.0041240556 = product of:
  0.016496222 = sum of:
    0.016496222 = product of:
      0.049488667 = sum of:
        0.049488667 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
          0.049488667 = score(doc=3103,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.38690117 = fieldWeight in 3103, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=3103)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Date
    27. 2.1999 20:55:22
  6. Ng, K.B.; Loewenstern, D.; Basu, C.; Hirsh, H.; Kantor, P.B.: Data fusion of machine-learning methods for the TREC5 routing tak (and other work) (1997) 0.00 
    0.0041240556 = product of:
  0.016496222 = sum of:
    0.016496222 = product of:
      0.049488667 = sum of:
        0.049488667 = weight(_text_:22 in 3107) [ClassicSimilarity], result of:
          0.049488667 = score(doc=3107,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.38690117 = fieldWeight in 3107, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=3107)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Date
    27. 2.1999 20:59:22
  7. Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.00 
    0.0041240556 = product of:
  0.016496222 = sum of:
    0.016496222 = product of:
      0.049488667 = sum of:
        0.049488667 = weight(_text_:22 in 2417) [ClassicSimilarity], result of:
          0.049488667 = score(doc=2417,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.38690117 = fieldWeight in 2417, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=2417)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Pages
    S.22-25
  8. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.00 
    0.0032992444 = product of:
  0.013196978 = sum of:
    0.013196978 = product of:
      0.039590932 = sum of:
        0.039590932 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
          0.039590932 = score(doc=5002,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = 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)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Date
    19. 3.1996 11:22:12
  9. Sanderson, M.: ¬The Reuters test collection (1996) 0.00 
    0.0032992444 = product of:
  0.013196978 = sum of:
    0.013196978 = product of:
      0.039590932 = sum of:
        0.039590932 = weight(_text_:22 in 6971) [ClassicSimilarity], result of:
          0.039590932 = score(doc=6971,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.30952093 = fieldWeight in 6971, 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=6971)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    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
  10. Lespinasse, K.: TREC: une conference pour l'evaluation des systemes de recherche d'information (1997) 0.00 
    0.0032992444 = product of:
  0.013196978 = sum of:
    0.013196978 = product of:
      0.039590932 = sum of:
        0.039590932 = weight(_text_:22 in 744) [ClassicSimilarity], result of:
          0.039590932 = score(doc=744,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.30952093 = fieldWeight in 744, 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=744)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Date
    1. 8.1996 22:01:00
  11. ¬The Fifth Text Retrieval Conference (TREC-5) (1997) 0.00 
    0.0032992444 = product of:
  0.013196978 = sum of:
    0.013196978 = product of:
      0.039590932 = sum of:
        0.039590932 = weight(_text_:22 in 3087) [ClassicSimilarity], result of:
          0.039590932 = score(doc=3087,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.30952093 = fieldWeight in 3087, 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=3087)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Abstract
    Proceedings of the 5th TREC-confrerence held in Gaithersburgh, Maryland, Nov 20-22, 1996. Aim of the conference was discussion on retrieval techniques for large test collections. Different research groups used different techniques, such as automated thesauri, term weighting, natural language techniques, relevance feedback and advanced pattern matching, for information retrieval from the same large database. This procedure makes it possible to compare the results. The proceedings include papers, tables of the system results, and brief system descriptions including timing and storage information
  12. Pemberton, J.K.; Ojala, M.; Garman, N.: Head to head : searching the Web versus traditional services (1998) 0.00 
    0.0032992444 = product of:
  0.013196978 = sum of:
    0.013196978 = product of:
      0.039590932 = sum of:
        0.039590932 = weight(_text_:22 in 3572) [ClassicSimilarity], result of:
          0.039590932 = score(doc=3572,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.30952093 = fieldWeight in 3572, 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=3572)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Source
    Online. 22(1998) no.3, S.24-26,28
  13. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.00 
    0.0032992444 = product of:
  0.013196978 = sum of:
    0.013196978 = product of:
      0.039590932 = sum of:
        0.039590932 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
          0.039590932 = score(doc=261,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.30952093 = fieldWeight in 261, 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=261)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Abstract
    Die deutschen Suchmaschinen, Abacho, Acoon, Fireball und Lycos sowie die Web-Kataloge Web.de und Yahoo! werden einem Qualitätstest nach relativem Recall, Precision und Availability unterzogen. Die Methoden der Retrievaltests werden vorgestellt. Im Durchschnitt werden bei einem Cut-Off-Wert von 25 ein Recall von rund 22%, eine Precision von knapp 19% und eine Verfügbarkeit von 24% erreicht
  14. Ellis, D.: Progress and problems in information retrieval (1996) 0.00 
    0.0032992444 = product of:
  0.013196978 = sum of:
    0.013196978 = product of:
      0.039590932 = sum of:
        0.039590932 = weight(_text_:22 in 789) [ClassicSimilarity], result of:
          0.039590932 = score(doc=789,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.30952093 = fieldWeight in 789, 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=789)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Date
    26. 7.2002 20:22:46
  15. ¬The Eleventh Text Retrieval Conference, TREC 2002 (2003) 0.00 
    0.0032992444 = product of:
  0.013196978 = sum of:
    0.013196978 = product of:
      0.039590932 = sum of:
        0.039590932 = weight(_text_:22 in 4049) [ClassicSimilarity], result of:
          0.039590932 = score(doc=4049,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.30952093 = fieldWeight in 4049, 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=4049)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Abstract
    Proceedings of the llth TREC-conference held in Gaithersburg, Maryland (USA), November 19-22, 2002. Aim of the conference was discussion an retrieval and related information-seeking tasks for large test collection. 93 research groups used different techniques, for information retrieval from the same large database. This procedure makes it possible to compare the results. The tasks are: Cross-language searching, filtering, interactive searching, searching for novelty, question answering, searching for video shots, and Web searching.
  16. Blagden, J.F.: How much noise in a role-free and link-free co-ordinate indexing system? (1966) 0.00 
    0.002886839 = product of:
  0.011547356 = sum of:
    0.011547356 = product of:
      0.034642067 = sum of:
        0.034642067 = weight(_text_:22 in 2718) [ClassicSimilarity], result of:
          0.034642067 = score(doc=2718,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.2708308 = fieldWeight in 2718, 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=2718)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Source
    Journal of documentation. 22(1966), S.203-209
  17. Smithson, S.: Information retrieval evaluation in practice : a case study approach (1994) 0.00 
    0.002886839 = product of:
  0.011547356 = sum of:
    0.011547356 = product of:
      0.034642067 = sum of:
        0.034642067 = weight(_text_:22 in 7302) [ClassicSimilarity], result of:
          0.034642067 = score(doc=7302,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = 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)
  0.25 = coord(1/4)
    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
  18. Blair, D.C.: STAIRS Redux : thoughts on the STAIRS evaluation, ten years after (1996) 0.00 
    0.002886839 = product of:
  0.011547356 = sum of:
    0.011547356 = product of:
      0.034642067 = sum of:
        0.034642067 = weight(_text_:22 in 3002) [ClassicSimilarity], result of:
          0.034642067 = score(doc=3002,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = 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)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Source
    Journal of the American Society for Information Science. 47(1996) no.1, S.4-22
  19. Losee, R.M.: Determining information retrieval and filtering performance without experimentation (1995) 0.00 
    0.002886839 = product of:
  0.011547356 = sum of:
    0.011547356 = product of:
      0.034642067 = sum of:
        0.034642067 = weight(_text_:22 in 3368) [ClassicSimilarity], result of:
          0.034642067 = score(doc=3368,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = 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)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Date
    22. 2.1996 13:14:10
  20. Hodges, P.R.: Keyword in title indexes : effectiveness of retrieval in computer searches (1983) 0.00 
    0.002886839 = product of:
  0.011547356 = sum of:
    0.011547356 = product of:
      0.034642067 = sum of:
        0.034642067 = weight(_text_:22 in 5001) [ClassicSimilarity], result of:
          0.034642067 = score(doc=5001,freq=2.0), product of:
            0.12791036 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.036526725 = queryNorm
            0.2708308 = fieldWeight in 5001, 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=5001)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Date
    14. 3.1996 13:22:21

Authors

Years

Languages

  • e 31
  • d 3
  • f 1
  • More… Less…

Types

  • a 32
  • s 3
  • m 2
  • More… Less…

Themes