Search (60 results, page 1 of 3)

  • × theme_ss:"Retrievalstudien"
  • × year_i:[1990 TO 2000}
  1. Van der Walt, H.E.A.; Brakel, P.A. van: Method for the evaluation of the retrieval effectiveness of a CD-ROM bibliographic database (1991) 0.08
    0.07909426 = product of:
      0.15818852 = sum of:
        0.14969662 = weight(_text_:van in 3114) [ClassicSimilarity], result of:
          0.14969662 = score(doc=3114,freq=4.0), product of:
            0.24542865 = queryWeight, product of:
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.044010527 = queryNorm
            0.60993946 = fieldWeight in 3114, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3114)
        0.008491908 = product of:
          0.016983816 = sum of:
            0.016983816 = weight(_text_:der in 3114) [ClassicSimilarity], result of:
              0.016983816 = score(doc=3114,freq=2.0), product of:
                0.098309256 = queryWeight, product of:
                  2.2337668 = idf(docFreq=12875, maxDocs=44218)
                  0.044010527 = queryNorm
                0.17275909 = fieldWeight in 3114, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.2337668 = idf(docFreq=12875, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3114)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
  2. Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997) 0.06
    0.057424027 = product of:
      0.114848055 = sum of:
        0.08503396 = weight(_text_:j in 3103) [ClassicSimilarity], result of:
          0.08503396 = score(doc=3103,freq=6.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.608066 = fieldWeight in 3103, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.078125 = fieldNorm(doc=3103)
        0.029814096 = product of:
          0.059628192 = sum of:
            0.059628192 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
              0.059628192 = score(doc=3103,freq=2.0), product of:
                0.15411738 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044010527 = queryNorm
                0.38690117 = fieldWeight in 3103, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=3103)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Date
    27. 2.1999 20:55:22
  3. Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998) 0.06
    0.05523593 = product of:
      0.11047186 = sum of:
        0.06873213 = weight(_text_:j in 6418) [ClassicSimilarity], result of:
          0.06873213 = score(doc=6418,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.4914939 = fieldWeight in 6418, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.109375 = fieldNorm(doc=6418)
        0.041739732 = product of:
          0.083479464 = sum of:
            0.083479464 = weight(_text_:22 in 6418) [ClassicSimilarity], result of:
              0.083479464 = score(doc=6418,freq=2.0), product of:
                0.15411738 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044010527 = queryNorm
                0.5416616 = fieldWeight in 6418, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=6418)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Source
    Online. 22(1998) no.6, S.57-58
  4. Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996) 0.05
    0.054309156 = product of:
      0.10861831 = sum of:
        0.090729855 = weight(_text_:van in 6967) [ClassicSimilarity], result of:
          0.090729855 = score(doc=6967,freq=2.0), product of:
            0.24542865 = queryWeight, product of:
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.044010527 = queryNorm
            0.36967915 = fieldWeight in 6967, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.046875 = fieldNorm(doc=6967)
        0.017888457 = product of:
          0.035776913 = sum of:
            0.035776913 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
              0.035776913 = score(doc=6967,freq=2.0), product of:
                0.15411738 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044010527 = 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)
      0.5 = coord(2/4)
    
    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
  5. Crestani, F.; Ruthven, I.; Sanderson, M.; Rijsbergen, C.J. van: ¬The troubles with using a logical model of IR on a large collection of documents : experimenting retrieval by logical imaging on TREC (1996) 0.04
    0.037804104 = product of:
      0.15121642 = sum of:
        0.15121642 = weight(_text_:van in 7522) [ClassicSimilarity], result of:
          0.15121642 = score(doc=7522,freq=2.0), product of:
            0.24542865 = queryWeight, product of:
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.044010527 = queryNorm
            0.6161319 = fieldWeight in 7522, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.078125 = fieldNorm(doc=7522)
      0.25 = coord(1/4)
    
  6. Krause, J.; Womser-Hacker, C.: PADOK-II : Retrievaltests zur Bewertung von Volltextindexierungsvarianten für das deutsche Patentinformationssystem (1990) 0.03
    0.03247631 = product of:
      0.06495262 = sum of:
        0.0392755 = weight(_text_:j in 2653) [ClassicSimilarity], result of:
          0.0392755 = score(doc=2653,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.28085366 = fieldWeight in 2653, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.0625 = fieldNorm(doc=2653)
        0.025677118 = product of:
          0.051354237 = sum of:
            0.051354237 = weight(_text_:der in 2653) [ClassicSimilarity], result of:
              0.051354237 = score(doc=2653,freq=14.0), product of:
                0.098309256 = queryWeight, product of:
                  2.2337668 = idf(docFreq=12875, maxDocs=44218)
                  0.044010527 = queryNorm
                0.5223744 = fieldWeight in 2653, product of:
                  3.7416575 = tf(freq=14.0), with freq of:
                    14.0 = termFreq=14.0
                  2.2337668 = idf(docFreq=12875, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2653)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Abstract
    Vorgestellt werden die Ergebnisse extensiver Retrievaltests von zwei Varianten von Inhalteserschließungen (Freitext und PASSAT) für das deutsche Patentinformationssystem auf der Basis von Volltexten. Die Tests führte die Fachgruppe Linguistische Informationswissenschaft der Universität Regensburg von 1986-1989 in Zusammenarbeit mit dem Deutschen Patentamt, dem Fachinformationszentrum Karlsruhe und meheren industrieellen Partnern durch. Der Schwerpunkt des Berichts liegt auf dem allgemeinen Ansatz der Bewertung der Ziele des Projekts und auf der Darstellung der statistischen Evaluierungsergebnisse.
  7. Strzalkowski, T.; Guthrie, L.; Karlgren, J.; Leistensnider, J.; Lin, F.; Perez-Carballo, J.; Straszheim, T.; Wang, J.; Wilding, J.: Natural language information retrieval : TREC-5 report (1997) 0.03
    0.027444592 = product of:
      0.10977837 = sum of:
        0.10977837 = weight(_text_:j in 3100) [ClassicSimilarity], result of:
          0.10977837 = score(doc=3100,freq=10.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.78500986 = fieldWeight in 3100, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.078125 = fieldNorm(doc=3100)
      0.25 = coord(1/4)
    
  8. Callan, J.; Croft, W.B.; Broglio, J.: TREC and TIPSTER experiments with INQUERY (1995) 0.02
    0.017357484 = product of:
      0.069429934 = sum of:
        0.069429934 = weight(_text_:j in 1944) [ClassicSimilarity], result of:
          0.069429934 = score(doc=1944,freq=4.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.4964838 = fieldWeight in 1944, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.078125 = fieldNorm(doc=1944)
      0.25 = coord(1/4)
    
  9. Krause, J.; Mutschke, P.: Indexierung und Fulcrum-Evaluierung (1999) 0.02
    0.017183032 = product of:
      0.06873213 = sum of:
        0.06873213 = weight(_text_:j in 6256) [ClassicSimilarity], result of:
          0.06873213 = score(doc=6256,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.4914939 = fieldWeight in 6256, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.109375 = fieldNorm(doc=6256)
      0.25 = coord(1/4)
    
  10. Strzalkowski, T.; Perez-Carballo, J.: Natural language information retrieval : TREC-4 report (1996) 0.01
    0.014728314 = product of:
      0.058913257 = sum of:
        0.058913257 = weight(_text_:j in 3211) [ClassicSimilarity], result of:
          0.058913257 = score(doc=3211,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.4212805 = fieldWeight in 3211, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.09375 = fieldNorm(doc=3211)
      0.25 = coord(1/4)
    
  11. Gauch, S.; Wang, J.: Corpus analysis for TREC 5 query expansion (1997) 0.01
    0.014728314 = product of:
      0.058913257 = sum of:
        0.058913257 = weight(_text_:j in 5800) [ClassicSimilarity], result of:
          0.058913257 = score(doc=5800,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.4212805 = fieldWeight in 5800, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.09375 = fieldNorm(doc=5800)
      0.25 = coord(1/4)
    
  12. Cowie, J.; Guan, Z.: CRL English routing system for TREC-5 (1997) 0.01
    0.014728314 = product of:
      0.058913257 = sum of:
        0.058913257 = weight(_text_:j in 3106) [ClassicSimilarity], result of:
          0.058913257 = score(doc=3106,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.4212805 = fieldWeight in 3106, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.09375 = fieldNorm(doc=3106)
      0.25 = coord(1/4)
    
  13. Savoy, J.; Calvé, A. le; Vrajitoru, D.: Report on the TREC5 experiment : data fusion and collection fusion (1997) 0.01
    0.014728314 = product of:
      0.058913257 = sum of:
        0.058913257 = weight(_text_:j in 3108) [ClassicSimilarity], result of:
          0.058913257 = score(doc=3108,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.4212805 = fieldWeight in 3108, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.09375 = fieldNorm(doc=3108)
      0.25 = coord(1/4)
    
  14. Chevallet, J.-P.; Bruandet, M.F.: Impact de l'utilisation de multi terms sur la qualité des résponses dùn système de recherche d'information a indexation automatique (1999) 0.01
    0.013885987 = product of:
      0.055543948 = sum of:
        0.055543948 = weight(_text_:j in 6253) [ClassicSimilarity], result of:
          0.055543948 = score(doc=6253,freq=4.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.39718705 = fieldWeight in 6253, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.0625 = fieldNorm(doc=6253)
      0.25 = coord(1/4)
    
    Source
    Organisation des connaissances en vue de leur intégration dans les systèmes de représentation et de recherche d'information. Ed.: J. Maniez, et al
  15. ¬The Second Text Retrieval Conference : TREC-2 (1995) 0.01
    0.012755094 = product of:
      0.051020376 = sum of:
        0.051020376 = weight(_text_:j in 1320) [ClassicSimilarity], result of:
          0.051020376 = score(doc=1320,freq=6.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.3648396 = fieldWeight in 1320, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.046875 = fieldNorm(doc=1320)
      0.25 = coord(1/4)
    
    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
  16. 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) 0.01
    0.012273594 = product of:
      0.049094375 = sum of:
        0.049094375 = weight(_text_:j in 3093) [ClassicSimilarity], result of:
          0.049094375 = score(doc=3093,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.35106707 = fieldWeight in 3093, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.078125 = fieldNorm(doc=3093)
      0.25 = coord(1/4)
    
  17. Hull, D.; Grefenstette, G.; Schulze, B.M.; Gaussier, E.; Schütze, H.; Pedersen, J.: Xerox TREC-5 site reports : routing, filtering, NLP, and Spanisch tracks (1997) 0.01
    0.012273594 = product of:
      0.049094375 = sum of:
        0.049094375 = weight(_text_:j in 3096) [ClassicSimilarity], result of:
          0.049094375 = score(doc=3096,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.35106707 = fieldWeight in 3096, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.078125 = fieldNorm(doc=3096)
      0.25 = coord(1/4)
    
  18. 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) 0.01
    0.012273594 = product of:
      0.049094375 = sum of:
        0.049094375 = weight(_text_:j in 3104) [ClassicSimilarity], result of:
          0.049094375 = score(doc=3104,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.35106707 = fieldWeight in 3104, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.078125 = fieldNorm(doc=3104)
      0.25 = coord(1/4)
    
  19. Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990) 0.01
    0.010434933 = product of:
      0.041739732 = sum of:
        0.041739732 = product of:
          0.083479464 = sum of:
            0.083479464 = weight(_text_:22 in 5089) [ClassicSimilarity], result of:
              0.083479464 = score(doc=5089,freq=2.0), product of:
                0.15411738 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044010527 = 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)
      0.25 = coord(1/4)
    
    Date
    22. 7.2006 18:43:54
  20. Saracevic, T.: Individual differences in organizing, searching and retrieving information (1991) 0.01
    0.009818875 = product of:
      0.0392755 = sum of:
        0.0392755 = weight(_text_:j in 3692) [ClassicSimilarity], result of:
          0.0392755 = score(doc=3692,freq=2.0), product of:
            0.1398433 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.044010527 = queryNorm
            0.28085366 = fieldWeight in 3692, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.0625 = fieldNorm(doc=3692)
      0.25 = coord(1/4)
    
    Source
    ASIS'91: systems understanding people. Proc. of the 54th Annual Meeting of the ASIS, vol.28, Washington, DC, 27.-31.10.1991. Ed.: J.-M. Griffiths

Languages

  • e 45
  • d 12
  • f 2
  • chi 1
  • More… Less…

Types

  • a 53
  • r 3
  • el 1
  • m 1
  • s 1
  • x 1
  • More… Less…