Search (15 results, page 1 of 1)

  • × theme_ss:"Retrievalalgorithmen"
  • × year_i:[1990 TO 2000}
  1. Jones, K.: Linguistic searching versus relevance ranking : DR-LINK and TARGET (1999) 0.03
    0.028982675 = product of:
      0.08694802 = sum of:
        0.08694802 = weight(_text_:k in 6423) [ClassicSimilarity], result of:
          0.08694802 = score(doc=6423,freq=2.0), product of:
            0.1574655 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.044110727 = queryNorm
            0.5521719 = fieldWeight in 6423, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.109375 = fieldNorm(doc=6423)
      0.33333334 = coord(1/3)
    
  2. Clarke, C.L.A.; Cormack, G.V.; Burkowski, F.J.: Shortest substring ranking : multitext experiments for TREC-4 (1996) 0.02
    0.024842292 = product of:
      0.074526876 = sum of:
        0.074526876 = weight(_text_:k in 549) [ClassicSimilarity], result of:
          0.074526876 = score(doc=549,freq=2.0), product of:
            0.1574655 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.044110727 = queryNorm
            0.47329018 = fieldWeight in 549, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.09375 = fieldNorm(doc=549)
      0.33333334 = coord(1/3)
    
    Source
    The Fourth Text Retrieval Conference (TREC-4). Ed.: K. Harman
  3. Savoy, J.; Ndarugendamwo, M.; Vrajitoru, D.: Report on the TREC-4 experiment : combining probabilistic and vector-space schemes (1996) 0.02
    0.024842292 = product of:
      0.074526876 = sum of:
        0.074526876 = weight(_text_:k in 7574) [ClassicSimilarity], result of:
          0.074526876 = score(doc=7574,freq=2.0), product of:
            0.1574655 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.044110727 = queryNorm
            0.47329018 = fieldWeight in 7574, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.09375 = fieldNorm(doc=7574)
      0.33333334 = coord(1/3)
    
    Source
    The Fourth Text Retrieval Conference (TREC-4). Ed.: K. Harman
  4. Belkin, N.J.; Cool, C.; Koenemann, J.; Ng, K.B.; Park, S.: Using relevance feedback and ranking in interactive searching (1996) 0.02
    0.024842292 = product of:
      0.074526876 = sum of:
        0.074526876 = weight(_text_:k in 7588) [ClassicSimilarity], result of:
          0.074526876 = score(doc=7588,freq=2.0), product of:
            0.1574655 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.044110727 = queryNorm
            0.47329018 = fieldWeight in 7588, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.09375 = fieldNorm(doc=7588)
      0.33333334 = coord(1/3)
    
    Source
    The Fourth Text Retrieval Conference (TREC-4). Ed.: K. Harman
  5. Koopman, R.: ¬Ein OPAC mit Gewichtungsalgorithmen : Der PICA Micro OPC (1996) 0.02
    0.02070191 = product of:
      0.062105726 = sum of:
        0.062105726 = weight(_text_:k in 4114) [ClassicSimilarity], result of:
          0.062105726 = score(doc=4114,freq=2.0), product of:
            0.1574655 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.044110727 = queryNorm
            0.39440846 = fieldWeight in 4114, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.078125 = fieldNorm(doc=4114)
      0.33333334 = coord(1/3)
    
    Source
    Zukunft der Sacherschließung im OPAC: Vorträge des 2. Düsseldorfer OPAC-Kolloquiums am 21. Juni 1995. Hrsg.: E. Niggemann u. K. Lepsky
  6. Sembok, T.M.T.; Rijsbergen, C.J. van: IMAGING: a relevant feedback retrieval with nearest neighbour clusters (1994) 0.02
    0.020208094 = product of:
      0.06062428 = sum of:
        0.06062428 = product of:
          0.12124856 = sum of:
            0.12124856 = weight(_text_:van in 1071) [ClassicSimilarity], result of:
              0.12124856 = score(doc=1071,freq=2.0), product of:
                0.24598742 = queryWeight, product of:
                  5.5765896 = idf(docFreq=454, maxDocs=44218)
                  0.044110727 = queryNorm
                0.49290553 = fieldWeight in 1071, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.5765896 = idf(docFreq=454, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1071)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
  7. Kantor, P.; Kim, M.H.; Ibraev, U.; Atasoy, K.: Estimating the number of relevant documents in enormous collections (1999) 0.01
    0.010350955 = product of:
      0.031052863 = sum of:
        0.031052863 = weight(_text_:k in 6690) [ClassicSimilarity], result of:
          0.031052863 = score(doc=6690,freq=2.0), product of:
            0.1574655 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.044110727 = queryNorm
            0.19720423 = fieldWeight in 6690, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.0390625 = fieldNorm(doc=6690)
      0.33333334 = coord(1/3)
    
  8. Robertson, S.E.; Sparck Jones, K.: Simple, proven approaches to text retrieval (1997) 0.01
    0.010350955 = product of:
      0.031052863 = sum of:
        0.031052863 = weight(_text_:k in 4532) [ClassicSimilarity], result of:
          0.031052863 = score(doc=4532,freq=2.0), product of:
            0.1574655 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.044110727 = queryNorm
            0.19720423 = fieldWeight in 4532, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4532)
      0.33333334 = coord(1/3)
    
  9. Faloutsos, C.: Signature files (1992) 0.01
    0.007968526 = product of:
      0.023905579 = sum of:
        0.023905579 = product of:
          0.047811158 = sum of:
            0.047811158 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
              0.047811158 = score(doc=3499,freq=2.0), product of:
                0.15446825 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044110727 = queryNorm
                0.30952093 = fieldWeight in 3499, 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=3499)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    7. 5.1999 15:22:48
  10. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.01
    0.00697246 = product of:
      0.02091738 = sum of:
        0.02091738 = product of:
          0.04183476 = sum of:
            0.04183476 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
              0.04183476 = score(doc=1319,freq=2.0), product of:
                0.15446825 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044110727 = queryNorm
                0.2708308 = fieldWeight in 1319, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1319)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    1. 8.1996 22:08:06
  11. Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996) 0.01
    0.0059763948 = product of:
      0.017929183 = sum of:
        0.017929183 = product of:
          0.035858367 = sum of:
            0.035858367 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
              0.035858367 = score(doc=5123,freq=2.0), product of:
                0.15446825 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044110727 = queryNorm
                0.23214069 = fieldWeight in 5123, 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=5123)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    12. 9.1996 13:56:22
  12. Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996) 0.01
    0.0059763948 = product of:
      0.017929183 = sum of:
        0.017929183 = product of:
          0.035858367 = sum of:
            0.035858367 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
              0.035858367 = score(doc=6973,freq=2.0), product of:
                0.15446825 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044110727 = queryNorm
                0.23214069 = fieldWeight in 6973, 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=6973)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    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
  13. Cross-language information retrieval (1998) 0.01
    0.0051754774 = product of:
      0.015526432 = sum of:
        0.015526432 = weight(_text_:k in 6299) [ClassicSimilarity], result of:
          0.015526432 = score(doc=6299,freq=2.0), product of:
            0.1574655 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.044110727 = queryNorm
            0.098602116 = fieldWeight in 6299, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.01953125 = fieldNorm(doc=6299)
      0.33333334 = coord(1/3)
    
    Content
    Enthält die Beiträge: GREFENSTETTE, G.: The Problem of Cross-Language Information Retrieval; DAVIS, M.W.: On the Effective Use of Large Parallel Corpora in Cross-Language Text Retrieval; BALLESTEROS, L. u. W.B. CROFT: Statistical Methods for Cross-Language Information Retrieval; Distributed Cross-Lingual Information Retrieval; Automatic Cross-Language Information Retrieval Using Latent Semantic Indexing; EVANS, D.A. u.a.: Mapping Vocabularies Using Latent Semantics; PICCHI, E. u. C. PETERS: Cross-Language Information Retrieval: A System for Comparable Corpus Querying; YAMABANA, K. u.a.: A Language Conversion Front-End for Cross-Language Information Retrieval; GACHOT, D.A. u.a.: The Systran NLP Browser: An Application of Machine Translation Technology in Cross-Language Information Retrieval; HULL, D.: A Weighted Boolean Model for Cross-Language Text Retrieval; SHERIDAN, P. u.a. Building a Large Multilingual Test Collection from Comparable News Documents; OARD; D.W. u. B.J. DORR: Evaluating Cross-Language Text Filtering Effectiveness
  14. Burgin, R.: ¬The retrieval effectiveness of 5 clustering algorithms as a function of indexing exhaustivity (1995) 0.00
    0.0049803294 = product of:
      0.014940987 = sum of:
        0.014940987 = product of:
          0.029881975 = sum of:
            0.029881975 = weight(_text_:22 in 3365) [ClassicSimilarity], result of:
              0.029881975 = score(doc=3365,freq=2.0), product of:
                0.15446825 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044110727 = queryNorm
                0.19345059 = fieldWeight in 3365, 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=3365)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    22. 2.1996 11:20:06
  15. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.00
    0.0049803294 = product of:
      0.014940987 = sum of:
        0.014940987 = product of:
          0.029881975 = sum of:
            0.029881975 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
              0.029881975 = score(doc=5697,freq=2.0), product of:
                0.15446825 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044110727 = queryNorm
                0.19345059 = fieldWeight in 5697, 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=5697)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    22. 2.1996 13:14:10