Search (54 results, page 1 of 3)

  • × theme_ss:"Retrievalstudien"
  1. ¬The Eleventh Text Retrieval Conference, TREC 2002 (2003) 0.05 
    0.05442158 = product of:
  0.16326474 = sum of:
    0.16326474 = sum of:
      0.11092015 = weight(_text_:2002 in 4049) [ClassicSimilarity], result of:
        0.11092015 = score(doc=4049,freq=4.0), product of:
          0.20701107 = queryWeight, product of:
            4.28654 = idf(docFreq=1652, maxDocs=44218)
            0.048293278 = queryNorm
          0.5358175 = fieldWeight in 4049, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.28654 = idf(docFreq=1652, maxDocs=44218)
            0.0625 = fieldNorm(doc=4049)
      0.05234458 = weight(_text_:22 in 4049) [ClassicSimilarity], result of:
        0.05234458 = score(doc=4049,freq=2.0), product of:
          0.16911483 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.048293278 = queryNorm
          0.30952093 = fieldWeight in 4049, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0625 = fieldNorm(doc=4049)
  0.33333334 = coord(1/3)
    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.
  2. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.04 
    0.043592326 = product of:
  0.13077697 = sum of:
    0.13077697 = sum of:
      0.07843239 = weight(_text_:2002 in 261) [ClassicSimilarity], result of:
        0.07843239 = score(doc=261,freq=2.0), product of:
          0.20701107 = queryWeight, product of:
            4.28654 = idf(docFreq=1652, maxDocs=44218)
            0.048293278 = queryNorm
          0.37888017 = fieldWeight in 261, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.28654 = idf(docFreq=1652, maxDocs=44218)
            0.0625 = fieldNorm(doc=261)
      0.05234458 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
        0.05234458 = score(doc=261,freq=2.0), product of:
          0.16911483 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.048293278 = 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)
    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
  3. Kuriyama, K.; Kando, N.; Nozue, T.; Eguchi, K.: Pooling for a large-scale test collection : an analysis of the search results from the First NTCIR Workshop (2002) 0.03 
    0.031003129 = product of:
  0.09300938 = sum of:
    0.09300938 = product of:
      0.18601876 = sum of:
        0.18601876 = weight(_text_:2002 in 3830) [ClassicSimilarity], result of:
          0.18601876 = score(doc=3830,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.8985933 = fieldWeight in 3830, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.09375 = fieldNorm(doc=3830)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Information retrieval. 5(2002), S.41-59
    Year
    2002
  4. Griesbaum, J.; Rittberger, M.; Bekavac, B.: Deutsche Suchmaschinen im Vergleich : AltaVista.de, Fireball.de, Google.de und Lycos.de (2002) 0.03 
    0.025835939 = product of:
  0.077507816 = sum of:
    0.077507816 = product of:
      0.15501563 = sum of:
        0.15501563 = weight(_text_:2002 in 1159) [ClassicSimilarity], result of:
          0.15501563 = score(doc=1159,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.74882776 = fieldWeight in 1159, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.078125 = fieldNorm(doc=1159)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Information und Mobilität: Optimierung und Vermeidung von Mobilität durch Information. Proceedings des 8. Internationalen Symposiums für Informationswissenschaft (ISI 2002), 7.-10.10.2002, Regensburg. Hrsg.: Rainer Hammwöhner, Christian Wolff, Christa Womser-Hacker
    Year
    2002
  5. Bar-Ilan, J.: Methods for measuring search engine performance over time (2002) 0.02 
    0.020668752 = product of:
  0.062006254 = sum of:
    0.062006254 = product of:
      0.12401251 = sum of:
        0.12401251 = weight(_text_:2002 in 305) [ClassicSimilarity], result of:
          0.12401251 = score(doc=305,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.5990622 = fieldWeight in 305, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.0625 = fieldNorm(doc=305)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.4, S.308-319
    Year
    2002
  6. Blair, D.C.: Some thoughts on the reported results of TREC (2002) 0.02 
    0.020668752 = product of:
  0.062006254 = sum of:
    0.062006254 = product of:
      0.12401251 = sum of:
        0.12401251 = weight(_text_:2002 in 2583) [ClassicSimilarity], result of:
          0.12401251 = score(doc=2583,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.5990622 = fieldWeight in 2583, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.0625 = fieldNorm(doc=2583)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Information processing and management. 38(2002) no.3, S.445-451
    Year
    2002
  7. Morse, E.; Lewis, M.; Olsen, K.A.: Testing visual information retrieval methodologies case study : comparative analysis of textual, icon, graphical, and "spring" displays (2002) 0.02 
    0.01808516 = product of:
  0.054255478 = sum of:
    0.054255478 = product of:
      0.108510956 = sum of:
        0.108510956 = weight(_text_:2002 in 191) [ClassicSimilarity], result of:
          0.108510956 = score(doc=191,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.52417946 = fieldWeight in 191, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.0546875 = fieldNorm(doc=191)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.1, S.28-40
    Year
    2002
  8. Kluck, M.; Mandl, T.; Womser-Hacker, C.: Cross-Language Evaluation Forum (CLEF) : Europäische Initiative zur Bewertung sprachübergreifender Retrievalverfahren (2002) 0.02 
    0.01808516 = product of:
  0.054255478 = sum of:
    0.054255478 = product of:
      0.108510956 = sum of:
        0.108510956 = weight(_text_:2002 in 266) [ClassicSimilarity], result of:
          0.108510956 = score(doc=266,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.52417946 = fieldWeight in 266, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.0546875 = fieldNorm(doc=266)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Information - Wissenschaft und Praxis. 53(2002) H.2, S.82-89
    Year
    2002
  9. Zhang, X.: Collaborative relevance judgment : a group consensus method for evaluating user search performance (2002) 0.02 
    0.015501564 = product of:
  0.04650469 = sum of:
    0.04650469 = product of:
      0.09300938 = sum of:
        0.09300938 = weight(_text_:2002 in 250) [ClassicSimilarity], result of:
          0.09300938 = score(doc=250,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.44929665 = fieldWeight in 250, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.046875 = fieldNorm(doc=250)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.3, S.220-231
    Year
    2002
  10. Ferret, O.; Grau, B.; Hurault-Plantet, M.; Illouz, G.; Jacquemin, C.; Monceaux, L.; Robba, I.; Vilnat, A.: How NLP can improve question answering (2002) 0.02 
    0.015501564 = product of:
  0.04650469 = sum of:
    0.04650469 = product of:
      0.09300938 = sum of:
        0.09300938 = weight(_text_:2002 in 1850) [ClassicSimilarity], result of:
          0.09300938 = score(doc=1850,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.44929665 = fieldWeight in 1850, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.046875 = fieldNorm(doc=1850)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Knowledge organization. 29(2002) nos.3/4, S.135-155
    Year
    2002
  11. Maglaughlin, K.L.; Sonnenwald, D.H.: User perspectives an relevance criteria : a comparison among relevant, partially relevant, and not-relevant judgements (2002) 0.02 
    0.015501564 = product of:
  0.04650469 = sum of:
    0.04650469 = product of:
      0.09300938 = sum of:
        0.09300938 = weight(_text_:2002 in 5201) [ClassicSimilarity], result of:
          0.09300938 = score(doc=5201,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.44929665 = fieldWeight in 5201, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.046875 = fieldNorm(doc=5201)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.5, S.327-342
    Year
    2002
  12. Mielke, B.: Wider einige gängige Ansichten zur juristischen Informationserschließung (2002) 0.02 
    0.015501564 = product of:
  0.04650469 = sum of:
    0.04650469 = product of:
      0.09300938 = sum of:
        0.09300938 = weight(_text_:2002 in 2145) [ClassicSimilarity], result of:
          0.09300938 = score(doc=2145,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.44929665 = fieldWeight in 2145, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.046875 = fieldNorm(doc=2145)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Information und Mobilität: Optimierung und Vermeidung von Mobilität durch Information. Proceedings des 8. Internationalen Symposiums für Informationswissenschaft (ISI 2002), 7.-10.10.2002, Regensburg. Hrsg.: Rainer Hammwöhner, Christian Wolff, Christa Womser-Hacker
    Year
    2002
  13. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.02 
    0.015267169 = product of:
  0.045801505 = sum of:
    0.045801505 = product of:
      0.09160301 = sum of:
        0.09160301 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
          0.09160301 = score(doc=262,freq=2.0), product of:
            0.16911483 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.048293278 = 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)
  0.33333334 = coord(1/3)
    Date
    20.10.2000 12:22:23
  14. Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998) 0.02 
    0.015267169 = product of:
  0.045801505 = sum of:
    0.045801505 = product of:
      0.09160301 = sum of:
        0.09160301 = weight(_text_:22 in 6418) [ClassicSimilarity], result of:
          0.09160301 = score(doc=6418,freq=2.0), product of:
            0.16911483 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.048293278 = 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)
  0.33333334 = coord(1/3)
    Source
    Online. 22(1998) no.6, S.57-58
  15. Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000) 0.02 
    0.015267169 = product of:
  0.045801505 = sum of:
    0.045801505 = product of:
      0.09160301 = sum of:
        0.09160301 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
          0.09160301 = score(doc=6438,freq=2.0), product of:
            0.16911483 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.048293278 = 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)
  0.33333334 = coord(1/3)
    Date
    11. 8.2001 16:22:19
  16. Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990) 0.02 
    0.015267169 = product of:
  0.045801505 = sum of:
    0.045801505 = product of:
      0.09160301 = sum of:
        0.09160301 = weight(_text_:22 in 5089) [ClassicSimilarity], result of:
          0.09160301 = score(doc=5089,freq=2.0), product of:
            0.16911483 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.048293278 = 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)
  0.33333334 = coord(1/3)
    Date
    22. 7.2006 18:43:54
  17. Radev, D.R.; Libner, K.; Fan, W.: Getting answers to natural language questions on the Web (2002) 0.01 
    0.012917969 = product of:
  0.038753908 = sum of:
    0.038753908 = product of:
      0.077507816 = sum of:
        0.077507816 = weight(_text_:2002 in 5204) [ClassicSimilarity], result of:
          0.077507816 = score(doc=5204,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.37441388 = fieldWeight in 5204, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5204)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.5, S.359-364
    Year
    2002
  18. Kekäläinen, J.; Järvelin, K.: Using graded relevance assessments in IR evaluation (2002) 0.01 
    0.012917969 = product of:
  0.038753908 = sum of:
    0.038753908 = product of:
      0.077507816 = sum of:
        0.077507816 = weight(_text_:2002 in 5225) [ClassicSimilarity], result of:
          0.077507816 = score(doc=5225,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.37441388 = fieldWeight in 5225, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5225)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.13, S.1120-xxxx
    Year
    2002
  19. Eastman, C.M.: 30,000 hits may be better than 300 : precision anomalies in Internet searches (2002) 0.01 
    0.012917969 = product of:
  0.038753908 = sum of:
    0.038753908 = product of:
      0.077507816 = sum of:
        0.077507816 = weight(_text_:2002 in 5231) [ClassicSimilarity], result of:
          0.077507816 = score(doc=5231,freq=5.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.37441388 = fieldWeight in 5231, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5231)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Source
    Journal of the American Society for Information Science and Technology. 53(2002) no.11, S.879-882
    Year
    2002
  20. Oberhauser, O.; Labner, J.: OPAC-Erweiterung durch automatische Indexierung : Empirische Untersuchung mit Daten aus dem Österreichischen Verbundkatalog (2002) 0.01 
    0.012007459 = product of:
  0.036022376 = sum of:
    0.036022376 = product of:
      0.07204475 = sum of:
        0.07204475 = weight(_text_:2002 in 883) [ClassicSimilarity], result of:
          0.07204475 = score(doc=883,freq=3.0), product of:
            0.20701107 = queryWeight, product of:
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.048293278 = queryNorm
            0.34802365 = fieldWeight in 883, product of:
              1.7320508 = tf(freq=3.0), with freq of:
                3.0 = termFreq=3.0
              4.28654 = idf(docFreq=1652, maxDocs=44218)
              0.046875 = fieldNorm(doc=883)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Year
    2002

Authors

Years

Languages

  • e 45
  • d 7
  • f 1
  • More… Less…

Types

  • a 50
  • s 3
  • el 2
  • m 2
  • More… Less…

Themes