Search (26 results, page 1 of 2)

  • × theme_ss:"Retrievalalgorithmen"
  • × type_ss:"a"
  • × year_i:[1990 TO 2000}
  1. Faloutsos, C.: Signature files (1992) 0.05
    0.046324927 = product of:
      0.092649855 = sum of:
        0.092649855 = sum of:
          0.04321946 = weight(_text_:u in 3499) [ClassicSimilarity], result of:
            0.04321946 = score(doc=3499,freq=2.0), product of:
              0.14932987 = queryWeight, product of:
                3.2744443 = idf(docFreq=4547, maxDocs=44218)
                0.045604642 = queryNorm
              0.28942272 = fieldWeight in 3499, 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=3499)
          0.049430396 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
            0.049430396 = score(doc=3499,freq=2.0), product of:
              0.1596997 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045604642 = 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)
    
    Date
    7. 5.1999 15:22:48
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  2. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.04
    0.04053431 = product of:
      0.08106862 = sum of:
        0.08106862 = sum of:
          0.037817024 = weight(_text_:u in 1319) [ClassicSimilarity], result of:
            0.037817024 = score(doc=1319,freq=2.0), product of:
              0.14932987 = queryWeight, product of:
                3.2744443 = idf(docFreq=4547, maxDocs=44218)
                0.045604642 = queryNorm
              0.25324488 = fieldWeight in 1319, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2744443 = idf(docFreq=4547, maxDocs=44218)
                0.0546875 = fieldNorm(doc=1319)
          0.043251596 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
            0.043251596 = score(doc=1319,freq=2.0), product of:
              0.1596997 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045604642 = 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)
    
    Date
    1. 8.1996 22:08:06
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  3. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.03
    0.02895308 = product of:
      0.05790616 = sum of:
        0.05790616 = sum of:
          0.027012162 = weight(_text_:u in 5697) [ClassicSimilarity], result of:
            0.027012162 = score(doc=5697,freq=2.0), product of:
              0.14932987 = queryWeight, product of:
                3.2744443 = idf(docFreq=4547, maxDocs=44218)
                0.045604642 = queryNorm
              0.1808892 = fieldWeight in 5697, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2744443 = idf(docFreq=4547, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5697)
          0.030893998 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
            0.030893998 = score(doc=5697,freq=2.0), product of:
              0.1596997 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045604642 = 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)
    
    Date
    22. 2.1996 13:14:10
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  4. Koopman, R.: ¬Ein OPAC mit Gewichtungsalgorithmen : Der PICA Micro OPC (1996) 0.01
    0.013506081 = product of:
      0.027012162 = sum of:
        0.027012162 = product of:
          0.054024324 = sum of:
            0.054024324 = weight(_text_:u in 4114) [ClassicSimilarity], result of:
              0.054024324 = score(doc=4114,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.3617784 = fieldWeight in 4114, 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=4114)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Zukunft der Sacherschließung im OPAC: Vorträge des 2. Düsseldorfer OPAC-Kolloquiums am 21. Juni 1995. Hrsg.: E. Niggemann u. K. Lepsky
  5. Baeza-Yates, R.A.: Introduction to data structures and algorithms related to information retrieval (1992) 0.01
    0.013506081 = product of:
      0.027012162 = sum of:
        0.027012162 = product of:
          0.054024324 = sum of:
            0.054024324 = weight(_text_:u in 3082) [ClassicSimilarity], result of:
              0.054024324 = score(doc=3082,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.3617784 = fieldWeight in 3082, 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=3082)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  6. Hüther, H.: Selix im DFG-Projekt Kascade (1998) 0.01
    0.013506081 = product of:
      0.027012162 = sum of:
        0.027012162 = product of:
          0.054024324 = sum of:
            0.054024324 = weight(_text_:u in 5151) [ClassicSimilarity], result of:
              0.054024324 = score(doc=5151,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.3617784 = fieldWeight in 5151, 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=5151)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Knowledge Management und Kommunikationssysteme: Proceedings des 6. Internationalen Symposiums für Informationswissenschaft (ISI '98) Prag, 3.-7. November 1998 / Hochschulverband für Informationswissenschaft (HI) e.V. Konstanz ; Fachrichtung Informationswissenschaft der Universität des Saarlandes, Saarbrücken. Hrsg.: Harald H. Zimmermann u. Volker Schramm
  7. Srinivasan, P.: Query expansion and MEDLINE (1996) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 8453) [ClassicSimilarity], result of:
              0.04321946 = score(doc=8453,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 8453, 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=8453)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  8. Pfeifer, U.; Pennekamp, S.: Incremental processing of vague queries in interactive retrieval systems (1997) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 735) [ClassicSimilarity], result of:
              0.04321946 = score(doc=735,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 735, 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=735)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  9. Harman, D.; Fox, E.; Baeza-Yates, R.; Lee, W.: Inverted files (1992) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 3497) [ClassicSimilarity], result of:
              0.04321946 = score(doc=3497,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 3497, 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=3497)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  10. Gonnet, G.H.; Snider, T.; Baeza-Yates, R.A.: New indices for text : PAT trees and PAT arrays (1992) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 3500) [ClassicSimilarity], result of:
              0.04321946 = score(doc=3500,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 3500, 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=3500)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  11. Frakes, W.B.: Stemming algorithms (1992) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 3503) [ClassicSimilarity], result of:
              0.04321946 = score(doc=3503,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 3503, 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=3503)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  12. Baeza-Yates, R.A.: String searching algorithms (1992) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 3505) [ClassicSimilarity], result of:
              0.04321946 = score(doc=3505,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 3505, 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=3505)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  13. Harman, D.: Relevance feedback and other query modification techniques (1992) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 3508) [ClassicSimilarity], result of:
              0.04321946 = score(doc=3508,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 3508, 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=3508)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  14. Wartik, S.: Boolean operators (1992) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 3509) [ClassicSimilarity], result of:
              0.04321946 = score(doc=3509,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 3509, 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=3509)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  15. Wartik, S.; Fox, E.; Heath, L.; Chen, Q.-F.: Hashing algorithms (1992) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 3510) [ClassicSimilarity], result of:
              0.04321946 = score(doc=3510,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 3510, 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=3510)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  16. Harman, D.: Ranking algorithms (1992) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 3511) [ClassicSimilarity], result of:
              0.04321946 = score(doc=3511,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 3511, 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=3511)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  17. Stanfill, C.: Parallel information retrieval algorithms (1992) 0.01
    0.010804865 = product of:
      0.02160973 = sum of:
        0.02160973 = product of:
          0.04321946 = sum of:
            0.04321946 = weight(_text_:u in 3515) [ClassicSimilarity], result of:
              0.04321946 = score(doc=3515,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.28942272 = fieldWeight in 3515, 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=3515)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  18. Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992) 0.01
    0.009454256 = product of:
      0.018908512 = sum of:
        0.018908512 = product of:
          0.037817024 = sum of:
            0.037817024 = weight(_text_:u in 2731) [ClassicSimilarity], result of:
              0.037817024 = score(doc=2731,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.25324488 = fieldWeight in 2731, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2731)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  19. Beaulieu, M.; Jones, S.: Interactive searching and interface issues in the Okapi best match probabilistic retrieval system (1998) 0.01
    0.009454256 = product of:
      0.018908512 = sum of:
        0.018908512 = product of:
          0.037817024 = sum of:
            0.037817024 = weight(_text_:u in 430) [ClassicSimilarity], result of:
              0.037817024 = score(doc=430,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.25324488 = fieldWeight in 430, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=430)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  20. Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996) 0.01
    0.009268199 = product of:
      0.018536398 = sum of:
        0.018536398 = product of:
          0.037072796 = sum of:
            0.037072796 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
              0.037072796 = score(doc=5123,freq=2.0), product of:
                0.1596997 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045604642 = 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)
      0.5 = coord(1/2)
    
    Date
    12. 9.1996 13:56:22