Search (1 results, page 1 of 1)

  • × author_ss:"Feng, S."
  • × theme_ss:"Retrievalstudien"
  • × type_ss:"a"
  1. Feng, S.: ¬A comparative study of indexing languages in single and multidatabase searching (1989) 0.01 
    0.010828791 = product of:
  0.043315165 = sum of:
    0.043315165 = weight(_text_:library in 2494) [ClassicSimilarity], result of:
      0.043315165 = score(doc=2494,freq=4.0), product of:
        0.1317883 = queryWeight, product of:
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.050121464 = queryNorm
        0.32867232 = fieldWeight in 2494, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.6293786 = idf(docFreq=8668, maxDocs=44218)
          0.0625 = fieldNorm(doc=2494)
  0.25 = coord(1/4)
    Abstract
    An experiment was conducted using 3 data bases in library and information science - Library and Information Science Abstracts (LISA), Information Science Abstracts and ERIC - to investigate some of the main factors affecting on-line searching: effectiveness of search vocabularies, combinations of fields searched, and overlaps among databases. Natural language, controlled vocabulary and a mixture of natural language and controlled terms were tested using different fields of bibliographic records. Also discusses a comparative evaluation of single and multi-data base searching, measuring the overlap among data bases and their influence upon on-line searching.