Search (469 results, page 2 of 24)

  • × theme_ss:"Retrievalstudien"
  1. Hawking, D.; Craswell, N.: ¬The very large collection and Web tracks (2005) 0.02
    0.018830704 = product of:
      0.028246054 = sum of:
        0.006291794 = weight(_text_:s in 5085) [ClassicSimilarity], result of:
          0.006291794 = score(doc=5085,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 5085, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=5085)
        0.02195426 = product of:
          0.06586278 = sum of:
            0.06586278 = weight(_text_:29 in 5085) [ClassicSimilarity], result of:
              0.06586278 = score(doc=5085,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.46638384 = fieldWeight in 5085, 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=5085)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    29. 3.1996 18:16:49
    Pages
    S.199-232
  2. Allan, J.; Croft, W.B.; Callan, J.: ¬The University of Massachusetts and a dozen TRECs (2005) 0.02
    0.018830704 = product of:
      0.028246054 = sum of:
        0.006291794 = weight(_text_:s in 5086) [ClassicSimilarity], result of:
          0.006291794 = score(doc=5086,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 5086, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=5086)
        0.02195426 = product of:
          0.06586278 = sum of:
            0.06586278 = weight(_text_:29 in 5086) [ClassicSimilarity], result of:
              0.06586278 = score(doc=5086,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.46638384 = fieldWeight in 5086, 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=5086)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    29. 3.1996 18:16:49
    Pages
    S.261-286
  3. Buckley, C.: ¬The SMART Project at TREC (2005) 0.02
    0.018830704 = product of:
      0.028246054 = sum of:
        0.006291794 = weight(_text_:s in 5088) [ClassicSimilarity], result of:
          0.006291794 = score(doc=5088,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 5088, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=5088)
        0.02195426 = product of:
          0.06586278 = sum of:
            0.06586278 = weight(_text_:29 in 5088) [ClassicSimilarity], result of:
              0.06586278 = score(doc=5088,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.46638384 = fieldWeight in 5088, 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=5088)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    29. 3.1996 18:16:49
    Pages
    S.301-320
  4. Kwok, K.-L.: Ten years of ad hoc retrieval at TREC using PIRCS (2005) 0.02
    0.018830704 = product of:
      0.028246054 = sum of:
        0.006291794 = weight(_text_:s in 5090) [ClassicSimilarity], result of:
          0.006291794 = score(doc=5090,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 5090, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=5090)
        0.02195426 = product of:
          0.06586278 = sum of:
            0.06586278 = weight(_text_:29 in 5090) [ClassicSimilarity], result of:
              0.06586278 = score(doc=5090,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.46638384 = fieldWeight in 5090, 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=5090)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    29. 3.1996 18:16:49
    Pages
    S.321-346
  5. Hiemstra, D.; Kraaij, W.: ¬A language-modeling approach to TREC (2005) 0.02
    0.018830704 = product of:
      0.028246054 = sum of:
        0.006291794 = weight(_text_:s in 5091) [ClassicSimilarity], result of:
          0.006291794 = score(doc=5091,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 5091, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=5091)
        0.02195426 = product of:
          0.06586278 = sum of:
            0.06586278 = weight(_text_:29 in 5091) [ClassicSimilarity], result of:
              0.06586278 = score(doc=5091,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.46638384 = fieldWeight in 5091, 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=5091)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    29. 3.1996 18:16:49
    Pages
    S.373-396
  6. Sparck Jones, K.: Metareflections on TREC (2005) 0.02
    0.018830704 = product of:
      0.028246054 = sum of:
        0.006291794 = weight(_text_:s in 5092) [ClassicSimilarity], result of:
          0.006291794 = score(doc=5092,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 5092, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=5092)
        0.02195426 = product of:
          0.06586278 = sum of:
            0.06586278 = weight(_text_:29 in 5092) [ClassicSimilarity], result of:
              0.06586278 = score(doc=5092,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.46638384 = fieldWeight in 5092, 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=5092)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    29. 3.1996 18:16:49
    Pages
    S.421-448
  7. Blair, D.C.; Maron, M.E.: ¬An evaluation of retrieval effectiveness for a full-text document-retrieval system (1985) 0.02
    0.018251097 = product of:
      0.027376644 = sum of:
        0.009081424 = weight(_text_:s in 1345) [ClassicSimilarity], result of:
          0.009081424 = score(doc=1345,freq=6.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.20806074 = fieldWeight in 1345, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=1345)
        0.01829522 = product of:
          0.054885656 = sum of:
            0.054885656 = weight(_text_:29 in 1345) [ClassicSimilarity], result of:
              0.054885656 = score(doc=1345,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.38865322 = fieldWeight in 1345, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1345)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Footnote
    Vgl. auch : Salton, G.: Another look ... Comm. ACM 29(1986) S.S.648-656; 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.
    Source
    Communications of the Association for Computing Machinery. 28(1985), S.280-299
  8. Brown, E.W.; Carmel, D.; Franz, M.; Ittycheriah, A.; Kanungo, T.; Maarek, Y.; McCarley, J.S.; Mack, R.L.; Prager, J.M.; Smith, J.R.; Soffer, A.; Zien, J.Y.; Marwick, A.D.: IBM research activities at TREC (2005) 0.02
    0.015692255 = product of:
      0.02353838 = sum of:
        0.005243162 = weight(_text_:s in 5093) [ClassicSimilarity], result of:
          0.005243162 = score(doc=5093,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.120123915 = fieldWeight in 5093, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=5093)
        0.01829522 = product of:
          0.054885656 = sum of:
            0.054885656 = weight(_text_:29 in 5093) [ClassicSimilarity], result of:
              0.054885656 = score(doc=5093,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.38865322 = fieldWeight in 5093, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.078125 = fieldNorm(doc=5093)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    29. 3.1996 18:16:49
    Pages
    S.397-420
  9. Womser-Hacker, C.: Evaluierung im Information Retrieval (2013) 0.02
    0.015692255 = product of:
      0.02353838 = sum of:
        0.005243162 = weight(_text_:s in 728) [ClassicSimilarity], result of:
          0.005243162 = score(doc=728,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.120123915 = fieldWeight in 728, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=728)
        0.01829522 = product of:
          0.054885656 = sum of:
            0.054885656 = weight(_text_:29 in 728) [ClassicSimilarity], result of:
              0.054885656 = score(doc=728,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.38865322 = fieldWeight in 728, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.078125 = fieldNorm(doc=728)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    5. 4.2013 13:53:29
    Pages
    S.396-410
  10. Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997) 0.02
    0.015582535 = product of:
      0.023373803 = sum of:
        0.005243162 = weight(_text_:s in 3103) [ClassicSimilarity], result of:
          0.005243162 = score(doc=3103,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.120123915 = fieldWeight in 3103, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=3103)
        0.018130641 = product of:
          0.05439192 = sum of:
            0.05439192 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
              0.05439192 = score(doc=3103,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
      0.6666667 = coord(2/3)
    
    Date
    27. 2.1999 20:55:22
    Pages
    S.191-197
  11. 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
    0.015582535 = product of:
      0.023373803 = sum of:
        0.005243162 = weight(_text_:s in 3107) [ClassicSimilarity], result of:
          0.005243162 = score(doc=3107,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.120123915 = fieldWeight in 3107, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=3107)
        0.018130641 = product of:
          0.05439192 = sum of:
            0.05439192 = weight(_text_:22 in 3107) [ClassicSimilarity], result of:
              0.05439192 = score(doc=3107,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
      0.6666667 = coord(2/3)
    
    Date
    27. 2.1999 20:59:22
    Pages
    S.477-487
  12. Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.02
    0.015582535 = product of:
      0.023373803 = sum of:
        0.005243162 = weight(_text_:s in 2417) [ClassicSimilarity], result of:
          0.005243162 = score(doc=2417,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.120123915 = fieldWeight in 2417, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=2417)
        0.018130641 = product of:
          0.05439192 = sum of:
            0.05439192 = weight(_text_:22 in 2417) [ClassicSimilarity], result of:
              0.05439192 = score(doc=2417,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
      0.6666667 = coord(2/3)
    
    Pages
    S.22-25
  13. Ellis, D.: Progress and problems in information retrieval (1996) 0.01
    0.014513101 = product of:
      0.021769652 = sum of:
        0.007265139 = weight(_text_:s in 789) [ClassicSimilarity], result of:
          0.007265139 = score(doc=789,freq=6.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.1664486 = fieldWeight in 789, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=789)
        0.014504513 = product of:
          0.043513536 = sum of:
            0.043513536 = weight(_text_:22 in 789) [ClassicSimilarity], result of:
              0.043513536 = score(doc=789,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
      0.6666667 = coord(2/3)
    
    Date
    26. 7.2002 20:22:46
    Footnote
    Rez. in: Managing information 3(1996) no.10, S.49 (D. Bawden); Program 32(1998) no.2, S.190-192 (C. Revie)
    Pages
    220 S
  14. ¬The Fifth Text Retrieval Conference (TREC-5) (1997) 0.01
    0.013624316 = product of:
      0.020436473 = sum of:
        0.005931961 = weight(_text_:s in 3087) [ClassicSimilarity], result of:
          0.005931961 = score(doc=3087,freq=4.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.1359047 = fieldWeight in 3087, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=3087)
        0.014504513 = product of:
          0.043513536 = sum of:
            0.043513536 = weight(_text_:22 in 3087) [ClassicSimilarity], result of:
              0.043513536 = score(doc=3087,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
      0.6666667 = coord(2/3)
    
    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
    Pages
    546 S
    Type
    s
  15. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.01
    0.013624316 = product of:
      0.020436473 = sum of:
        0.005931961 = weight(_text_:s in 261) [ClassicSimilarity], result of:
          0.005931961 = score(doc=261,freq=4.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.1359047 = fieldWeight in 261, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=261)
        0.014504513 = product of:
          0.043513536 = sum of:
            0.043513536 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
              0.043513536 = score(doc=261,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
      0.6666667 = coord(2/3)
    
    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
    Footnote
    Vgl. auch den Bericht in: nfd 53(2002) H.2, S.71
    Source
    nfd Information - Wissenschaft und Praxis. 52(2001) H.7, S.381-392
  16. Kristensen, J.: Expanding end-users' query statements for free text searching with a search-aid thesaurus (1993) 0.01
    0.012553803 = product of:
      0.018830704 = sum of:
        0.0041945297 = weight(_text_:s in 6621) [ClassicSimilarity], result of:
          0.0041945297 = score(doc=6621,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.09609913 = fieldWeight in 6621, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=6621)
        0.014636174 = product of:
          0.04390852 = sum of:
            0.04390852 = weight(_text_:29 in 6621) [ClassicSimilarity], result of:
              0.04390852 = score(doc=6621,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.31092256 = fieldWeight in 6621, 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=6621)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Source
    Information processing and management. 29(1993) no.6, S.733-744
  17. Harman, D.K.: ¬The first text retrieval conference : TREC-1, 1992 (1993) 0.01
    0.012553803 = product of:
      0.018830704 = sum of:
        0.0041945297 = weight(_text_:s in 1317) [ClassicSimilarity], result of:
          0.0041945297 = score(doc=1317,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.09609913 = fieldWeight in 1317, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=1317)
        0.014636174 = product of:
          0.04390852 = sum of:
            0.04390852 = weight(_text_:29 in 1317) [ClassicSimilarity], result of:
              0.04390852 = score(doc=1317,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.31092256 = fieldWeight in 1317, 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=1317)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Source
    Information processing and management. 29(1993) no.4, S.411-414
  18. Bar-Ilan, J.: Methods for measuring search engine performance over time (2002) 0.01
    0.012553803 = product of:
      0.018830704 = sum of:
        0.0041945297 = weight(_text_:s in 305) [ClassicSimilarity], result of:
          0.0041945297 = score(doc=305,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.09609913 = fieldWeight in 305, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=305)
        0.014636174 = product of:
          0.04390852 = sum of:
            0.04390852 = weight(_text_:29 in 305) [ClassicSimilarity], result of:
              0.04390852 = score(doc=305,freq=2.0), product of:
                0.14122012 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04014573 = queryNorm
                0.31092256 = fieldWeight in 305, 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=305)
          0.33333334 = coord(1/3)
      0.6666667 = coord(2/3)
    
    Date
    23. 3.2002 9:50:29
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.4, S.308-319
  19. Sanderson, M.: ¬The Reuters test collection (1996) 0.01
    0.012466028 = product of:
      0.018699042 = sum of:
        0.0041945297 = weight(_text_:s in 6971) [ClassicSimilarity], result of:
          0.0041945297 = score(doc=6971,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.09609913 = fieldWeight in 6971, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=6971)
        0.014504513 = product of:
          0.043513536 = sum of:
            0.043513536 = weight(_text_:22 in 6971) [ClassicSimilarity], result of:
              0.043513536 = score(doc=6971,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
      0.6666667 = coord(2/3)
    
    Pages
    S.219-227
    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
  20. Lespinasse, K.: TREC: une conference pour l'evaluation des systemes de recherche d'information (1997) 0.01
    0.012466028 = product of:
      0.018699042 = sum of:
        0.0041945297 = weight(_text_:s in 744) [ClassicSimilarity], result of:
          0.0041945297 = score(doc=744,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.09609913 = fieldWeight in 744, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=744)
        0.014504513 = product of:
          0.043513536 = sum of:
            0.043513536 = weight(_text_:22 in 744) [ClassicSimilarity], result of:
              0.043513536 = score(doc=744,freq=2.0), product of:
                0.1405835 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04014573 = 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)
      0.6666667 = coord(2/3)
    
    Date
    1. 8.1996 22:01:00
    Source
    Documentaliste. 34(1997) no.2, S.74-81

Years

Languages

Types

  • a 435
  • s 15
  • m 9
  • r 8
  • el 6
  • x 6
  • More… Less…