Search (146 results, page 1 of 8)

  • × theme_ss:"Retrievalstudien"
  1. Lundquist, C.; Grossmann, D.A.; Reichart, J.; Holmes, D.O.; Chowdhury, A.; Frieder, O.: Using relevance feedback within the relational model for TREC-5 (1997) 0.07 
    0.06520914 = product of:
  0.16302285 = sum of:
    0.11432747 = weight(_text_:o in 3093) [ClassicSimilarity], result of:
      0.11432747 = score(doc=3093,freq=2.0), product of:
        0.20624171 = queryWeight, product of:
          5.017288 = idf(docFreq=795, maxDocs=44218)
          0.041106213 = queryNorm
        0.55433726 = fieldWeight in 3093, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.017288 = idf(docFreq=795, maxDocs=44218)
          0.078125 = fieldNorm(doc=3093)
    0.048695378 = weight(_text_:u in 3093) [ClassicSimilarity], result of:
      0.048695378 = score(doc=3093,freq=2.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.3617784 = fieldWeight in 3093, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=3093)
  0.4 = coord(2/5)
    Source
    The Fifth Text Retrieval Conference (TREC-5). Ed.: E.M. Voorhees u. D.K. Harman
  2. ¬The Second Text Retrieval Conference : TREC-2 (1995) 0.05 
    0.049946796 = product of:
  0.12486699 = sum of:
    0.08263879 = weight(_text_:u in 1320) [ClassicSimilarity], result of:
      0.08263879 = score(doc=1320,freq=16.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.6139583 = fieldWeight in 1320, product of:
          4.0 = tf(freq=16.0), with freq of:
            16.0 = termFreq=16.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.046875 = fieldNorm(doc=1320)
    0.042228196 = weight(_text_:r in 1320) [ClassicSimilarity], result of:
      0.042228196 = score(doc=1320,freq=4.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.3103367 = fieldWeight in 1320, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.046875 = fieldNorm(doc=1320)
  0.4 = coord(2/5)
    Content
    Enthält die Beiträge: HARMAN, D.: Overview of the Second Text Retrieval Conference (TREC-2); SPRACK JONES, K.: Reflections on TREC; BUCKLEY, C., J. ALLAN u. G. SALTON: Automatic routing and retrieval using SMART: TREC-2; CALLAN, J.P., W.B. CROFT u. J. BROGLIO: TREC and TIPSTER experiments with INQUERY; ROBERTSON, S.R., S. WALKER u. M.M. HANCOCK-BEAULIEU: Large test collection experiments on an operational, interactive system: OKAPI at TREC; ZOBEL, J., A. MOFFAT, R. WILKINSON u. R. SACKS-DAVIS: Efficient retrieval of partial documents; METTLER, M. u. F. NORDBY: TREC routing experiments with the TRW/Paracel Fast Data Finder; EVANS, D.A. u. R.G. LEFFERTS: CLARIT-TREC experiments; STRZALKOWSKI, T.: Natural language information retrieval; CAID, W.R., S.T. DUMAIS u. S.I. GALLANT: Learned vector-space models for document retrieval; BELKIN, N.J. P. KANTOR, E.A. FOX u. J.A. SHAW: Combining the evidence of multiple query representations for information retrieval
  3. Harman, D.K.: ¬The TREC conferences (1995) 0.05 
    0.04745283 = product of:
  0.11863207 = sum of:
    0.068865664 = weight(_text_:u in 1932) [ClassicSimilarity], result of:
      0.068865664 = score(doc=1932,freq=4.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.5116319 = fieldWeight in 1932, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=1932)
    0.049766406 = weight(_text_:r in 1932) [ClassicSimilarity], result of:
      0.049766406 = score(doc=1932,freq=2.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.36573532 = fieldWeight in 1932, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.078125 = fieldNorm(doc=1932)
  0.4 = coord(2/5)
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufman 1997. S.247-256.
    Source
    Hypertext - Information Retrieval - Multimedia: HIM '95. Synergieeffekte elektronischer Informationssysteme. Hrsg.: R. Kuhlen u. M. Rittberger
  4. Burnett, M.; Jones, R.; Pape, L.: InTEXT automatic query enhancements in TREC-5 (1997) 0.05 
    0.047261655 = product of:
  0.11815414 = sum of:
    0.058434453 = weight(_text_:u in 3091) [ClassicSimilarity], result of:
      0.058434453 = score(doc=3091,freq=2.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.43413407 = fieldWeight in 3091, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.09375 = fieldNorm(doc=3091)
    0.05971969 = weight(_text_:r in 3091) [ClassicSimilarity], result of:
      0.05971969 = score(doc=3091,freq=2.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.4388824 = fieldWeight in 3091, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.09375 = fieldNorm(doc=3091)
  0.4 = coord(2/5)
    Source
    The Fifth Text Retrieval Conference (TREC-5). Ed.: E.M. Voorhees u. D.K. Harman
  5. Smeaton, A.F.; Kelledy, L.; O'Donnell, R.: TREC-4 experiments at Dublin City University : thresholding posting lists, query expansion with WordNet and POS tagging of Spanish (1996) 0.04 
    0.039384715 = product of:
  0.098461784 = sum of:
    0.048695378 = weight(_text_:u in 7000) [ClassicSimilarity], result of:
      0.048695378 = score(doc=7000,freq=2.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.3617784 = fieldWeight in 7000, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=7000)
    0.049766406 = weight(_text_:r in 7000) [ClassicSimilarity], result of:
      0.049766406 = score(doc=7000,freq=2.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.36573532 = fieldWeight in 7000, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.078125 = fieldNorm(doc=7000)
  0.4 = coord(2/5)
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  6. Ballerini, J.-P.; Büchel, M.; Domenig, R.; Knaus, D.; Mateev, B.; Mittendorf, E.; Schäuble, P.; Wechsler, M.; Sheridan, P.: SPIDER retrieval system at TREC-5 (1997) 0.04 
    0.039384715 = product of:
  0.098461784 = sum of:
    0.048695378 = weight(_text_:u in 3104) [ClassicSimilarity], result of:
      0.048695378 = score(doc=3104,freq=2.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.3617784 = fieldWeight in 3104, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=3104)
    0.049766406 = weight(_text_:r in 3104) [ClassicSimilarity], result of:
      0.049766406 = score(doc=3104,freq=2.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.36573532 = fieldWeight in 3104, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.078125 = fieldNorm(doc=3104)
  0.4 = coord(2/5)
    Source
    The Fifth Text Retrieval Conference (TREC-5). Ed.: E.M. Voorhees u. D.K. Harman
  7. Belkin, N.J.; Cabezas, A.; Cool, C.; Kim, K.; Ng, K.B.; Park, S.; Pressman, R.; Rieh, S.; Savage, P.; Xie, H.: Rutgers interactive track at TREC-5 (1997) 0.04 
    0.039384715 = product of:
  0.098461784 = sum of:
    0.048695378 = weight(_text_:u in 3112) [ClassicSimilarity], result of:
      0.048695378 = score(doc=3112,freq=2.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.3617784 = fieldWeight in 3112, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=3112)
    0.049766406 = weight(_text_:r in 3112) [ClassicSimilarity], result of:
      0.049766406 = score(doc=3112,freq=2.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.36573532 = fieldWeight in 3112, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.078125 = fieldNorm(doc=3112)
  0.4 = coord(2/5)
    Source
    The Fifth Text Retrieval Conference (TREC-5). Ed.: E.M. Voorhees u. D.K. Harman
  8. Womser-Hacker, C.: Evaluierung im Information Retrieval (2013) 0.04 
    0.039384715 = product of:
  0.098461784 = sum of:
    0.048695378 = weight(_text_:u in 728) [ClassicSimilarity], result of:
      0.048695378 = score(doc=728,freq=2.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.3617784 = fieldWeight in 728, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=728)
    0.049766406 = weight(_text_:r in 728) [ClassicSimilarity], result of:
      0.049766406 = score(doc=728,freq=2.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.36573532 = fieldWeight in 728, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.078125 = fieldNorm(doc=728)
  0.4 = coord(2/5)
    Source
    Grundlagen der praktischen Information und Dokumentation. Handbuch zur Einführung in die Informationswissenschaft und -praxis. 6., völlig neu gefaßte Ausgabe. Hrsg. von R. Kuhlen, W. Semar u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried
  9. Oberhauser, O.; Labner, J.: Einführung der automatischen Indexierung im Österreichischen Verbundkatalog? : Bericht über eine empirische Studie (2003) 0.03 
    0.03201169 = product of:
  0.16005845 = sum of:
    0.16005845 = weight(_text_:o in 1878) [ClassicSimilarity], result of:
      0.16005845 = score(doc=1878,freq=2.0), product of:
        0.20624171 = queryWeight, product of:
          5.017288 = idf(docFreq=795, maxDocs=44218)
          0.041106213 = queryNorm
        0.77607214 = fieldWeight in 1878, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.017288 = idf(docFreq=795, maxDocs=44218)
          0.109375 = fieldNorm(doc=1878)
  0.2 = coord(1/5)
  10. Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997) 0.03 
    0.030616803 = product of:
  0.076542005 = sum of:
    0.048695378 = weight(_text_:u in 3103) [ClassicSimilarity], result of:
      0.048695378 = score(doc=3103,freq=2.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.3617784 = fieldWeight in 3103, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=3103)
    0.027846623 = product of:
      0.055693246 = sum of:
        0.055693246 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
          0.055693246 = score(doc=3103,freq=2.0), product of:
            0.14394696 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041106213 = 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)
  0.4 = coord(2/5)
    Date
    27. 2.1999 20:55:22
    Source
    The Fifth Text Retrieval Conference (TREC-5). Ed.: E.M. Voorhees u. D.K. Harman
  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) 0.03 
    0.030616803 = product of:
  0.076542005 = sum of:
    0.048695378 = weight(_text_:u in 3107) [ClassicSimilarity], result of:
      0.048695378 = score(doc=3107,freq=2.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.3617784 = fieldWeight in 3107, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=3107)
    0.027846623 = product of:
      0.055693246 = sum of:
        0.055693246 = weight(_text_:22 in 3107) [ClassicSimilarity], result of:
          0.055693246 = score(doc=3107,freq=2.0), product of:
            0.14394696 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041106213 = 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)
  0.4 = coord(2/5)
    Date
    27. 2.1999 20:59:22
    Source
    The Fifth Text Retrieval Conference (TREC-5). Ed.: E.M. Voorhees u. D.K. Harman
  12. Grossman, D.A.; Holmes, D.O.; Frieder, O.; Nguyen, M.D.; Kingsbury, C.E.: Improving accuracy and run-time performance for TREC-4 (1996) 0.03 
    0.02743859 = product of:
  0.13719295 = sum of:
    0.13719295 = weight(_text_:o in 7531) [ClassicSimilarity], result of:
      0.13719295 = score(doc=7531,freq=2.0), product of:
        0.20624171 = queryWeight, product of:
          5.017288 = idf(docFreq=795, maxDocs=44218)
          0.041106213 = queryNorm
        0.6652047 = fieldWeight in 7531, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.017288 = idf(docFreq=795, maxDocs=44218)
          0.09375 = fieldNorm(doc=7531)
  0.2 = coord(1/5)
  13. Sanderson, M.: ¬The Reuters test collection (1996) 0.02 
    0.02483617 = product of:
  0.062090423 = sum of:
    0.039813124 = weight(_text_:r in 6971) [ClassicSimilarity], result of:
      0.039813124 = score(doc=6971,freq=2.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.29258826 = fieldWeight in 6971, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.0625 = fieldNorm(doc=6971)
    0.0222773 = product of:
      0.0445546 = sum of:
        0.0445546 = weight(_text_:22 in 6971) [ClassicSimilarity], result of:
          0.0445546 = score(doc=6971,freq=2.0), product of:
            0.14394696 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041106213 = 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)
  0.4 = coord(2/5)
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  14. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.02 
    0.02483617 = product of:
  0.062090423 = sum of:
    0.039813124 = weight(_text_:r in 261) [ClassicSimilarity], result of:
      0.039813124 = score(doc=261,freq=2.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.29258826 = fieldWeight in 261, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.0625 = fieldNorm(doc=261)
    0.0222773 = product of:
      0.0445546 = sum of:
        0.0445546 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
          0.0445546 = score(doc=261,freq=2.0), product of:
            0.14394696 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041106213 = 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)
  0.4 = coord(2/5)
    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
  15. ¬The Fifth Text Retrieval Conference (TREC-5) (1997) 0.02 
    0.024493441 = product of:
  0.061233602 = sum of:
    0.038956303 = weight(_text_:u in 3087) [ClassicSimilarity], result of:
      0.038956303 = score(doc=3087,freq=2.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.28942272 = fieldWeight in 3087, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=3087)
    0.0222773 = product of:
      0.0445546 = sum of:
        0.0445546 = weight(_text_:22 in 3087) [ClassicSimilarity], result of:
          0.0445546 = score(doc=3087,freq=2.0), product of:
            0.14394696 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041106213 = 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)
  0.4 = coord(2/5)
    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
    Editor
    Voorhees, E.M. u. D.K. Harman
  16. ¬The Eleventh Text Retrieval Conference, TREC 2002 (2003) 0.02 
    0.024493441 = product of:
  0.061233602 = sum of:
    0.038956303 = weight(_text_:u in 4049) [ClassicSimilarity], result of:
      0.038956303 = score(doc=4049,freq=2.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.28942272 = fieldWeight in 4049, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=4049)
    0.0222773 = product of:
      0.0445546 = sum of:
        0.0445546 = weight(_text_:22 in 4049) [ClassicSimilarity], result of:
          0.0445546 = score(doc=4049,freq=2.0), product of:
            0.14394696 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041106213 = 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)
  0.4 = coord(2/5)
    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.
    Editor
    Voorhees, E.M. u. D.K. Harman
  17. Wood, F.; Ford, N.; Miller, D.; Sobczyk, G.; Duffin, R.: Information skills, searching behaviour and cognitive styles for student-centred learning : a computer-assisted learning approach (1996) 0.02 
    0.018627128 = product of:
  0.04656782 = sum of:
    0.029859845 = weight(_text_:r in 4341) [ClassicSimilarity], result of:
      0.029859845 = score(doc=4341,freq=2.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.2194412 = fieldWeight in 4341, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.046875 = fieldNorm(doc=4341)
    0.016707974 = product of:
      0.033415947 = sum of:
        0.033415947 = weight(_text_:22 in 4341) [ClassicSimilarity], result of:
          0.033415947 = score(doc=4341,freq=2.0), product of:
            0.14394696 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041106213 = queryNorm
            0.23214069 = fieldWeight in 4341, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=4341)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Source
    Journal of information science. 22(1996) no.2, S.79-92
  18. Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996) 0.02 
    0.018627128 = product of:
  0.04656782 = sum of:
    0.029859845 = weight(_text_:r in 6967) [ClassicSimilarity], result of:
      0.029859845 = score(doc=6967,freq=2.0), product of:
        0.13607219 = queryWeight, product of:
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.041106213 = queryNorm
        0.2194412 = fieldWeight in 6967, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.3102584 = idf(docFreq=4387, maxDocs=44218)
          0.046875 = fieldNorm(doc=6967)
    0.016707974 = product of:
      0.033415947 = sum of:
        0.033415947 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
          0.033415947 = score(doc=6967,freq=2.0), product of:
            0.14394696 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041106213 = queryNorm
            0.23214069 = fieldWeight in 6967, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=6967)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    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
  19. Gauch, S.; Wang, J.: Corpus analysis for TREC 5 query expansion (1997) 0.02 
    0.016527759 = product of:
  0.08263879 = sum of:
    0.08263879 = weight(_text_:u in 5800) [ClassicSimilarity], result of:
      0.08263879 = score(doc=5800,freq=4.0), product of:
        0.13460001 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041106213 = queryNorm
        0.6139583 = fieldWeight in 5800, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.09375 = fieldNorm(doc=5800)
  0.2 = coord(1/5)
    Source
    The Fifth Text Retrieval Conference (TREC-5). Ed.: E.M. Voorhees u. D.K. Harman
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  20. Madelung, H.-O.: Subject searching in the social sciences : a comparison of PRECIS and KWIC indexes indexes to newspaper articles (1982) 0.02 
    0.016005846 = product of:
  0.08002923 = sum of:
    0.08002923 = weight(_text_:o in 5517) [ClassicSimilarity], result of:
      0.08002923 = score(doc=5517,freq=2.0), product of:
        0.20624171 = queryWeight, product of:
          5.017288 = idf(docFreq=795, maxDocs=44218)
          0.041106213 = queryNorm
        0.38803607 = fieldWeight in 5517, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.017288 = idf(docFreq=795, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5517)
  0.2 = coord(1/5)

Authors

Years

Languages

  • e 121
  • d 20
  • chi 1
  • f 1
  • m 1
  • nl 1
  • More… Less…

Types

  • a 123
  • r 12
  • s 8
  • m 5
  • p 1
  • x 1
  • More… Less…

Themes

Subjects

Classifications