Search (112 results, page 1 of 6)

  • × theme_ss:"Retrievalstudien"
  1. Sanderson, M.: ¬The Reuters test collection (1996) 0.04
    0.037372135 = product of:
      0.07474427 = sum of:
        0.07474427 = sum of:
          0.025079379 = weight(_text_:m in 6971) [ClassicSimilarity], result of:
            0.025079379 = score(doc=6971,freq=2.0), product of:
              0.114023164 = queryWeight, product of:
                2.4884486 = idf(docFreq=9980, maxDocs=44218)
                0.045820985 = queryNorm
              0.21994986 = fieldWeight in 6971, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4884486 = idf(docFreq=9980, maxDocs=44218)
                0.0625 = fieldNorm(doc=6971)
          0.04966489 = weight(_text_:22 in 6971) [ClassicSimilarity], result of:
            0.04966489 = score(doc=6971,freq=2.0), product of:
              0.16045728 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045820985 = 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)
      0.5 = coord(1/2)
    
    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
  2. Pemberton, J.K.; Ojala, M.; Garman, N.: Head to head : searching the Web versus traditional services (1998) 0.04
    0.037372135 = product of:
      0.07474427 = sum of:
        0.07474427 = sum of:
          0.025079379 = weight(_text_:m in 3572) [ClassicSimilarity], result of:
            0.025079379 = score(doc=3572,freq=2.0), product of:
              0.114023164 = queryWeight, product of:
                2.4884486 = idf(docFreq=9980, maxDocs=44218)
                0.045820985 = queryNorm
              0.21994986 = fieldWeight in 3572, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4884486 = idf(docFreq=9980, maxDocs=44218)
                0.0625 = fieldNorm(doc=3572)
          0.04966489 = weight(_text_:22 in 3572) [ClassicSimilarity], result of:
            0.04966489 = score(doc=3572,freq=2.0), product of:
              0.16045728 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045820985 = 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)
      0.5 = coord(1/2)
    
    Source
    Online. 22(1998) no.3, S.24-26,28
  3. Ellis, D.: Progress and problems in information retrieval (1996) 0.04
    0.037372135 = product of:
      0.07474427 = sum of:
        0.07474427 = sum of:
          0.025079379 = weight(_text_:m in 789) [ClassicSimilarity], result of:
            0.025079379 = score(doc=789,freq=2.0), product of:
              0.114023164 = queryWeight, product of:
                2.4884486 = idf(docFreq=9980, maxDocs=44218)
                0.045820985 = queryNorm
              0.21994986 = fieldWeight in 789, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4884486 = idf(docFreq=9980, maxDocs=44218)
                0.0625 = fieldNorm(doc=789)
          0.04966489 = weight(_text_:22 in 789) [ClassicSimilarity], result of:
            0.04966489 = score(doc=789,freq=2.0), product of:
              0.16045728 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045820985 = 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)
      0.5 = coord(1/2)
    
    Date
    26. 7.2002 20:22:46
    Type
    m
  4. ¬The Eleventh Text Retrieval Conference, TREC 2002 (2003) 0.04
    0.037372135 = product of:
      0.07474427 = sum of:
        0.07474427 = sum of:
          0.025079379 = weight(_text_:m in 4049) [ClassicSimilarity], result of:
            0.025079379 = score(doc=4049,freq=2.0), product of:
              0.114023164 = queryWeight, product of:
                2.4884486 = idf(docFreq=9980, maxDocs=44218)
                0.045820985 = queryNorm
              0.21994986 = fieldWeight in 4049, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4884486 = idf(docFreq=9980, maxDocs=44218)
                0.0625 = fieldNorm(doc=4049)
          0.04966489 = weight(_text_:22 in 4049) [ClassicSimilarity], result of:
            0.04966489 = score(doc=4049,freq=2.0), product of:
              0.16045728 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045820985 = 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)
      0.5 = coord(1/2)
    
    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.
    Type
    m
  5. Iivonen, M.: Consistency in the selection of search concepts and search terms (1995) 0.03
    0.0280291 = product of:
      0.0560582 = sum of:
        0.0560582 = sum of:
          0.018809535 = weight(_text_:m in 1757) [ClassicSimilarity], result of:
            0.018809535 = score(doc=1757,freq=2.0), product of:
              0.114023164 = queryWeight, product of:
                2.4884486 = idf(docFreq=9980, maxDocs=44218)
                0.045820985 = queryNorm
              0.1649624 = fieldWeight in 1757, 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=1757)
          0.037248664 = weight(_text_:22 in 1757) [ClassicSimilarity], result of:
            0.037248664 = score(doc=1757,freq=2.0), product of:
              0.16045728 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045820985 = queryNorm
              0.23214069 = fieldWeight in 1757, 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=1757)
      0.5 = coord(1/2)
    
    Abstract
    Considers intersearcher and intrasearcher consistency in the selection of search terms. Based on an empirical study where 22 searchers from 4 different types of search environments analyzed altogether 12 search requests of 4 different types in 2 separate test situations between which 2 months elapsed. Statistically very significant differences in consistency were found according to the types of search environments and search requests. Consistency was also considered according to the extent of the scope of search concept. At level I search terms were compared character by character. At level II different search terms were accepted as the same search concept with a rather simple evaluation of linguistic expressions. At level III, in addition to level II, the hierarchical approach of the search request was also controlled. At level IV different search terms were accepted as the same search concept with a broad interpretation of the search concept. Both intersearcher and intrasearcher consistency grew most immediately after a rather simple evaluation of linguistic impressions
  6. Pal, S.; Mitra, M.; Kamps, J.: Evaluation effort, reliability and reusability in XML retrieval (2011) 0.02
    0.023357583 = product of:
      0.046715166 = sum of:
        0.046715166 = sum of:
          0.015674612 = weight(_text_:m in 4197) [ClassicSimilarity], result of:
            0.015674612 = score(doc=4197,freq=2.0), product of:
              0.114023164 = queryWeight, product of:
                2.4884486 = idf(docFreq=9980, maxDocs=44218)
                0.045820985 = queryNorm
              0.13746867 = fieldWeight in 4197, 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=4197)
          0.031040555 = weight(_text_:22 in 4197) [ClassicSimilarity], result of:
            0.031040555 = score(doc=4197,freq=2.0), product of:
              0.16045728 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045820985 = queryNorm
              0.19345059 = fieldWeight in 4197, 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=4197)
      0.5 = coord(1/2)
    
    Date
    22. 1.2011 14:20:56
  7. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.02
    0.021728387 = product of:
      0.043456774 = sum of:
        0.043456774 = product of:
          0.08691355 = sum of:
            0.08691355 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
              0.08691355 = score(doc=262,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    20.10.2000 12:22:23
  8. Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998) 0.02
    0.021728387 = product of:
      0.043456774 = sum of:
        0.043456774 = product of:
          0.08691355 = sum of:
            0.08691355 = weight(_text_:22 in 6418) [ClassicSimilarity], result of:
              0.08691355 = score(doc=6418,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Online. 22(1998) no.6, S.57-58
  9. Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000) 0.02
    0.021728387 = product of:
      0.043456774 = sum of:
        0.043456774 = product of:
          0.08691355 = sum of:
            0.08691355 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
              0.08691355 = score(doc=6438,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    11. 8.2001 16:22:19
  10. Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990) 0.02
    0.021728387 = product of:
      0.043456774 = sum of:
        0.043456774 = product of:
          0.08691355 = sum of:
            0.08691355 = weight(_text_:22 in 5089) [ClassicSimilarity], result of:
              0.08691355 = score(doc=5089,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 18:43:54
  11. Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997) 0.02
    0.015520277 = product of:
      0.031040555 = sum of:
        0.031040555 = product of:
          0.06208111 = sum of:
            0.06208111 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
              0.06208111 = score(doc=3103,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    27. 2.1999 20:55:22
  12. 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) 0.02
    0.015520277 = product of:
      0.031040555 = sum of:
        0.031040555 = product of:
          0.06208111 = sum of:
            0.06208111 = weight(_text_:22 in 3107) [ClassicSimilarity], result of:
              0.06208111 = score(doc=3107,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    27. 2.1999 20:59:22
  13. Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.02
    0.015520277 = product of:
      0.031040555 = sum of:
        0.031040555 = product of:
          0.06208111 = sum of:
            0.06208111 = weight(_text_:22 in 2417) [ClassicSimilarity], result of:
              0.06208111 = score(doc=2417,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Pages
    S.22-25
  14. Dillon, M.: Enhanced bibliographic record retrieval experiments (1989) 0.01
    0.012539689 = product of:
      0.025079379 = sum of:
        0.025079379 = product of:
          0.050158758 = sum of:
            0.050158758 = weight(_text_:m in 1406) [ClassicSimilarity], result of:
              0.050158758 = score(doc=1406,freq=2.0), product of:
                0.114023164 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.045820985 = queryNorm
                0.4398997 = fieldWeight in 1406, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.125 = fieldNorm(doc=1406)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  15. Hofstede, M.: Literatuur over onderwerpen zoeken in de OPC (1994) 0.01
    0.012539689 = product of:
      0.025079379 = sum of:
        0.025079379 = product of:
          0.050158758 = sum of:
            0.050158758 = weight(_text_:m in 5400) [ClassicSimilarity], result of:
              0.050158758 = score(doc=5400,freq=2.0), product of:
                0.114023164 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.045820985 = queryNorm
                0.4398997 = fieldWeight in 5400, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.125 = fieldNorm(doc=5400)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  16. Ronthaler, M.; Zillmann, H.: Literaturrecherche mit OSIRIS : ein Test der OSIRIS-Retrievalkomponente (1998) 0.01
    0.012539689 = product of:
      0.025079379 = sum of:
        0.025079379 = product of:
          0.050158758 = sum of:
            0.050158758 = weight(_text_:m in 414) [ClassicSimilarity], result of:
              0.050158758 = score(doc=414,freq=2.0), product of:
                0.114023164 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.045820985 = queryNorm
                0.4398997 = fieldWeight in 414, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.125 = fieldNorm(doc=414)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  17. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.01
    0.012416222 = product of:
      0.024832444 = sum of:
        0.024832444 = product of:
          0.04966489 = sum of:
            0.04966489 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
              0.04966489 = score(doc=5002,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    19. 3.1996 11:22:12
  18. Lespinasse, K.: TREC: une conference pour l'evaluation des systemes de recherche d'information (1997) 0.01
    0.012416222 = product of:
      0.024832444 = sum of:
        0.024832444 = product of:
          0.04966489 = sum of:
            0.04966489 = weight(_text_:22 in 744) [ClassicSimilarity], result of:
              0.04966489 = score(doc=744,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    1. 8.1996 22:01:00
  19. ¬The Fifth Text Retrieval Conference (TREC-5) (1997) 0.01
    0.012416222 = product of:
      0.024832444 = sum of:
        0.024832444 = product of:
          0.04966489 = sum of:
            0.04966489 = weight(_text_:22 in 3087) [ClassicSimilarity], result of:
              0.04966489 = score(doc=3087,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    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
  20. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.01
    0.012416222 = product of:
      0.024832444 = sum of:
        0.024832444 = product of:
          0.04966489 = sum of:
            0.04966489 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
              0.04966489 = score(doc=261,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    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

Languages

  • e 89
  • d 18
  • chi 1
  • f 1
  • m 1
  • nl 1
  • More… Less…

Types

  • a 93
  • m 10
  • s 7
  • el 5
  • r 4
  • More… Less…