Search (14 results, page 1 of 1)

  • × year_i:[2000 TO 2010}
  • × theme_ss:"Retrievalstudien"
  1. Larsen, B.; Ingwersen, P.; Lund, B.: Data fusion according to the principle of polyrepresentation (2009) 0.03
    0.030189436 = product of:
      0.06037887 = sum of:
        0.06037887 = sum of:
          0.035710584 = weight(_text_:b in 2752) [ClassicSimilarity], result of:
            0.035710584 = score(doc=2752,freq=4.0), product of:
              0.16126883 = queryWeight, product of:
                3.542962 = idf(docFreq=3476, maxDocs=44218)
                0.045518078 = queryNorm
              0.22143513 = fieldWeight in 2752, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.542962 = idf(docFreq=3476, maxDocs=44218)
                0.03125 = fieldNorm(doc=2752)
          0.024668286 = weight(_text_:22 in 2752) [ClassicSimilarity], result of:
            0.024668286 = score(doc=2752,freq=2.0), product of:
              0.15939656 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045518078 = queryNorm
              0.15476047 = fieldWeight in 2752, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03125 = fieldNorm(doc=2752)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 18:48:28
  2. Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000) 0.02
    0.02158475 = product of:
      0.0431695 = sum of:
        0.0431695 = product of:
          0.086339 = sum of:
            0.086339 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
              0.086339 = score(doc=6438,freq=2.0), product of:
                0.15939656 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045518078 = 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
  3. Griesbaum, J.; Rittberger, M.; Bekavac, B.: Deutsche Suchmaschinen im Vergleich : AltaVista.de, Fireball.de, Google.de und Lycos.de (2002) 0.02
    0.015781997 = product of:
      0.031563994 = sum of:
        0.031563994 = product of:
          0.06312799 = sum of:
            0.06312799 = weight(_text_:b in 1159) [ClassicSimilarity], result of:
              0.06312799 = score(doc=1159,freq=2.0), product of:
                0.16126883 = queryWeight, product of:
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.045518078 = queryNorm
                0.3914457 = fieldWeight in 1159, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1159)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  4. Carterette, B.: Test collections (2009) 0.01
    0.012625597 = product of:
      0.025251195 = sum of:
        0.025251195 = product of:
          0.05050239 = sum of:
            0.05050239 = weight(_text_:b in 3891) [ClassicSimilarity], result of:
              0.05050239 = score(doc=3891,freq=2.0), product of:
                0.16126883 = queryWeight, product of:
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.045518078 = queryNorm
                0.31315655 = fieldWeight in 3891, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3891)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  5. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.01
    0.012334143 = product of:
      0.024668286 = sum of:
        0.024668286 = product of:
          0.04933657 = sum of:
            0.04933657 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
              0.04933657 = score(doc=261,freq=2.0), product of:
                0.15939656 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045518078 = 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
  6. ¬The Eleventh Text Retrieval Conference, TREC 2002 (2003) 0.01
    0.012334143 = product of:
      0.024668286 = sum of:
        0.024668286 = product of:
          0.04933657 = sum of:
            0.04933657 = weight(_text_:22 in 4049) [ClassicSimilarity], result of:
              0.04933657 = score(doc=4049,freq=2.0), product of:
                0.15939656 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045518078 = 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)
      0.5 = 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.
  7. Ferret, O.; Grau, B.; Hurault-Plantet, M.; Illouz, G.; Jacquemin, C.; Monceaux, L.; Robba, I.; Vilnat, A.: How NLP can improve question answering (2002) 0.01
    0.009469198 = product of:
      0.018938396 = sum of:
        0.018938396 = product of:
          0.037876792 = sum of:
            0.037876792 = weight(_text_:b in 1850) [ClassicSimilarity], result of:
              0.037876792 = score(doc=1850,freq=2.0), product of:
                0.16126883 = queryWeight, product of:
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.045518078 = queryNorm
                0.23486741 = fieldWeight in 1850, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1850)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  8. Mielke, B.: Wider einige gängige Ansichten zur juristischen Informationserschließung (2002) 0.01
    0.009469198 = product of:
      0.018938396 = sum of:
        0.018938396 = product of:
          0.037876792 = sum of:
            0.037876792 = weight(_text_:b in 2145) [ClassicSimilarity], result of:
              0.037876792 = score(doc=2145,freq=2.0), product of:
                0.16126883 = queryWeight, product of:
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.045518078 = queryNorm
                0.23486741 = fieldWeight in 2145, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2145)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  9. Leininger, K.: Interindexer consistency in PsychINFO (2000) 0.01
    0.009250606 = product of:
      0.018501213 = sum of:
        0.018501213 = product of:
          0.037002426 = sum of:
            0.037002426 = weight(_text_:22 in 2552) [ClassicSimilarity], result of:
              0.037002426 = score(doc=2552,freq=2.0), product of:
                0.15939656 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045518078 = queryNorm
                0.23214069 = fieldWeight in 2552, 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=2552)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    9. 2.1997 18:44:22
  10. Greisdorf, H.; O'Connor, B.: Nodes of topicality modeling user notions of on topic documents (2003) 0.01
    0.007890998 = product of:
      0.015781997 = sum of:
        0.015781997 = product of:
          0.031563994 = sum of:
            0.031563994 = weight(_text_:b in 5175) [ClassicSimilarity], result of:
              0.031563994 = score(doc=5175,freq=2.0), product of:
                0.16126883 = queryWeight, product of:
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.045518078 = queryNorm
                0.19572285 = fieldWeight in 5175, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5175)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  11. Hemminger, B.M.; Saelim, B.; Sullivan, P.F.; Vision, T.J.: Comparison of full-text searching to metadata searching for genes in two biomedical literature cohorts (2007) 0.01
    0.007890998 = product of:
      0.015781997 = sum of:
        0.015781997 = product of:
          0.031563994 = sum of:
            0.031563994 = weight(_text_:b in 1327) [ClassicSimilarity], result of:
              0.031563994 = score(doc=1327,freq=2.0), product of:
                0.16126883 = queryWeight, product of:
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.045518078 = queryNorm
                0.19572285 = fieldWeight in 1327, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1327)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  12. Scherer, B.: Automatische Indexierung und ihre Anwendung im DFG-Projekt "Gemeinsames Portal für Bibliotheken, Archive und Museen (BAM)" (2003) 0.01
    0.007890998 = product of:
      0.015781997 = sum of:
        0.015781997 = product of:
          0.031563994 = sum of:
            0.031563994 = weight(_text_:b in 4283) [ClassicSimilarity], result of:
              0.031563994 = score(doc=4283,freq=2.0), product of:
                0.16126883 = queryWeight, product of:
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.045518078 = queryNorm
                0.19572285 = fieldWeight in 4283, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.542962 = idf(docFreq=3476, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4283)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  13. King, D.W.: Blazing new trails : in celebration of an audacious career (2000) 0.01
    0.0077088396 = product of:
      0.015417679 = sum of:
        0.015417679 = product of:
          0.030835358 = sum of:
            0.030835358 = weight(_text_:22 in 1184) [ClassicSimilarity], result of:
              0.030835358 = score(doc=1184,freq=2.0), product of:
                0.15939656 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045518078 = queryNorm
                0.19345059 = fieldWeight in 1184, 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=1184)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 9.1997 19:16:05
  14. Petrelli, D.: On the role of user-centred evaluation in the advancement of interactive information retrieval (2008) 0.01
    0.0077088396 = product of:
      0.015417679 = sum of:
        0.015417679 = product of:
          0.030835358 = sum of:
            0.030835358 = weight(_text_:22 in 2026) [ClassicSimilarity], result of:
              0.030835358 = score(doc=2026,freq=2.0), product of:
                0.15939656 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045518078 = queryNorm
                0.19345059 = fieldWeight in 2026, 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=2026)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 44(2008) no.1, S.22-38