Search (5 results, page 1 of 1)

  • × author_ss:"Harman, D."
  • × year_i:[1990 TO 2000}
  1. Harman, D.; Fox, E.; Baeza-Yates, R.; Lee, W.: Inverted files (1992) 0.01
    0.014631464 = product of:
      0.058525857 = sum of:
        0.058525857 = weight(_text_:data in 3497) [ClassicSimilarity], result of:
          0.058525857 = score(doc=3497,freq=4.0), product of:
            0.14807065 = queryWeight, product of:
              3.1620505 = idf(docFreq=5088, maxDocs=44218)
              0.046827413 = queryNorm
            0.3952563 = fieldWeight in 3497, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1620505 = idf(docFreq=5088, maxDocs=44218)
              0.0625 = fieldNorm(doc=3497)
      0.25 = coord(1/4)
    
    Abstract
    This chaper presents a survey of the various structures (techniques) that can be used in building inverted files, and gives the details for producing an inverted file using sorted arrays. The chapter ends with 2 modifications to this basic method that are affective for large data collections
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  2. Harman, D.: Relevance feedback and other query modification techniques (1992) 0.01
    0.0103460075 = product of:
      0.04138403 = sum of:
        0.04138403 = weight(_text_:data in 3508) [ClassicSimilarity], result of:
          0.04138403 = score(doc=3508,freq=2.0), product of:
            0.14807065 = queryWeight, product of:
              3.1620505 = idf(docFreq=5088, maxDocs=44218)
              0.046827413 = queryNorm
            0.2794884 = fieldWeight in 3508, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1620505 = idf(docFreq=5088, maxDocs=44218)
              0.0625 = fieldNorm(doc=3508)
      0.25 = coord(1/4)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  3. Harman, D.: Ranking algorithms (1992) 0.01
    0.0103460075 = product of:
      0.04138403 = sum of:
        0.04138403 = weight(_text_:data in 3511) [ClassicSimilarity], result of:
          0.04138403 = score(doc=3511,freq=2.0), product of:
            0.14807065 = queryWeight, product of:
              3.1620505 = idf(docFreq=5088, maxDocs=44218)
              0.046827413 = queryNorm
            0.2794884 = fieldWeight in 3511, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1620505 = idf(docFreq=5088, maxDocs=44218)
              0.0625 = fieldNorm(doc=3511)
      0.25 = coord(1/4)
    
    Source
    Information retrieval: data structures and algorithms. Ed.: W.B. Frakes u. R. Baeza-Yates
  4. Harman, D.: Overview of the Second Text Retrieval Conference : TREC-2 (1995) 0.01
    0.008478476 = product of:
      0.033913903 = sum of:
        0.033913903 = product of:
          0.067827806 = sum of:
            0.067827806 = weight(_text_:processing in 1915) [ClassicSimilarity], result of:
              0.067827806 = score(doc=1915,freq=2.0), product of:
                0.18956426 = queryWeight, product of:
                  4.048147 = idf(docFreq=2097, maxDocs=44218)
                  0.046827413 = queryNorm
                0.35780904 = fieldWeight in 1915, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.048147 = idf(docFreq=2097, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1915)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Information processing and management. 31(1995) no.3, S.271-289
  5. Harman, D.; McCoy, W.; Toense, R.: Prototyping a distributed information retrieval system that uses statistical ranking (1991) 0.01
    0.007418666 = product of:
      0.029674664 = sum of:
        0.029674664 = product of:
          0.05934933 = sum of:
            0.05934933 = weight(_text_:processing in 3844) [ClassicSimilarity], result of:
              0.05934933 = score(doc=3844,freq=2.0), product of:
                0.18956426 = queryWeight, product of:
                  4.048147 = idf(docFreq=2097, maxDocs=44218)
                  0.046827413 = queryNorm
                0.3130829 = fieldWeight in 3844, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.048147 = idf(docFreq=2097, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3844)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Information processing and management. 27(1991) no.5, S.449-460