Search (2 results, page 1 of 1)

Schabas, A.H.: ¬A comparative evaluation of the retrieval effectiveness of titles, Library of Congress Subject Headings and PRECIS strings for computer searching of UK MARC data (1979) 0.03

0.027506953 = product of:
  0.13753477 = sum of:
    0.13753477 = weight(_text_:doksprachen in 5277) [ClassicSimilarity], result of:
      0.13753477 = score(doc=5277,freq=2.0), product of:
        0.17061387 = queryWeight, product of:
          6.0801163 = idf(docFreq=274, maxDocs=44218)
          0.028060954 = queryNorm
        0.8061172 = fieldWeight in 5277, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0801163 = idf(docFreq=274, maxDocs=44218)
          0.09375 = fieldNorm(doc=5277)
  0.2 = coord(1/5)

Theme: Verbale Doksprachen im Online-Retrieval

Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.00

0.0015207487 = product of:
  0.0076037436 = sum of:
    0.0076037436 = product of:
      0.030414974 = sum of:
        0.030414974 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
          0.030414974 = score(doc=5002,freq=2.0), product of:
            0.09826468 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.028060954 = queryNorm
            0.30952093 = fieldWeight in 5002, 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=5002)
      0.25 = coord(1/4)
  0.2 = coord(1/5)

Date: 19. 3.1996 11:22:12

Search (2 results, page 1 of 1)

Authors

Types