Search (3 results, page 1 of 1)

  • × author_ss:"Efthimiadis, E.N."
  • × year_i:[1990 TO 2000}
  1. Efthimiadis, E.N.: ¬A study of end-user behaviour in searching CD-ROM bibliographic databases (1994) 0.03 
    0.026923468 = product of:
  0.13461734 = sum of:
    0.13461734 = weight(_text_:cd in 8583) [ClassicSimilarity], result of:
      0.13461734 = score(doc=8583,freq=6.0), product of:
        0.21311972 = queryWeight, product of:
          4.125929 = idf(docFreq=1940, maxDocs=44218)
          0.051653754 = queryNorm
        0.6316513 = fieldWeight in 8583, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          4.125929 = idf(docFreq=1940, maxDocs=44218)
          0.0625 = fieldNorm(doc=8583)
  0.2 = coord(1/5)
    Abstract
    The searching behaviour of 79 end-users of CD-ROM databases was studied at the UCLA campus libraries. The results indicate that users lack basic knowledge on how to search and consequently their searches are not effective despite their efforts. Users therefore need help through training but most importantly by improving the CD-ROM user interfaces and retrieval systems
  2. Efthimiadis, E.N.: End-users' understanding of thesaural knowledge structures in interactive query expansion (1994) 0.01 
    0.011197394 = product of:
  0.055986967 = sum of:
    0.055986967 = weight(_text_:22 in 5693) [ClassicSimilarity], result of:
      0.055986967 = score(doc=5693,freq=2.0), product of:
        0.18088265 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.051653754 = queryNorm
        0.30952093 = fieldWeight in 5693, 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=5693)
  0.2 = coord(1/5)
    Date
    30. 3.2001 13:35:22
  3. Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995) 0.01 
    0.006998371 = product of:
  0.034991853 = sum of:
    0.034991853 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
      0.034991853 = score(doc=5697,freq=2.0), product of:
        0.18088265 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.051653754 = 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)
  0.2 = coord(1/5)
    Date
    22. 2.1996 13:14:10

Themes