Search (3 results, page 1 of 1)

0.0065270998 = product of:
  0.0195813 = sum of:
    0.0195813 = product of:
      0.058743894 = sum of:
        0.058743894 = weight(_text_:online in 2759) [ClassicSimilarity], result of:
          0.058743894 = score(doc=2759,freq=4.0), product of:
            0.1548489 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.051022716 = queryNorm
            0.37936267 = fieldWeight in 2759, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0625 = fieldNorm(doc=2759)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)

Abstract

An important review of design of interfaces to encourage wider use of publicly available online databases. The authors, renowned in this field, indicate the requirements that must be met to give maximum aid to the inexperienced searcher, to spell out the knowledge that must be incoporated, and to describe some of the solutions that have been implemented. They also discuss the problems encountered in implementation. - Enthält ausführliche Bibliographie und Angaben zur Software

0.00499627 = product of:
  0.01498881 = sum of:
    0.01498881 = product of:
      0.04496643 = sum of:
        0.04496643 = weight(_text_:online in 2659) [ClassicSimilarity], result of:
          0.04496643 = score(doc=2659,freq=6.0), product of:
            0.1548489 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.051022716 = queryNorm
            0.29038906 = fieldWeight in 2659, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2659)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)

Abstract

There is a huge amount of information and data stored in publicly available online databases that consist of large text files accessed by Boolean search techniques. It is widely held that less use is made of theses databases than could or should be the case, and that one reason for this is that potential users find it difficult to identify which databases to search, to use the various command languages of the hosts and to construct the Boolean search statements required. This reasoning has stimulated a considerable amount of exploration and development work on the construction of search interfaces, to aid the inexperienced user to gain effective access to these databases. The aim of our paper is to review aspects of the design of such interfaces; to indicate the requirements that must be met if maximum aid is to be offered to the inexperienced searcher; to spell out the knowledge that must be incorporated in an interface if such aid is to be given; to describe some of the solutions that have been implemented in experimental and operational interfaces; and to discuss some of the problems encountered. The paper closes with an extensive bibliography of references relevant to online search aids, going well beyond the items explicitly mentioned in the text. An index to software appears after the bibliography at the end of the paper

0.004615356 = product of:
  0.013846068 = sum of:
    0.013846068 = product of:
      0.0415382 = sum of:
        0.0415382 = weight(_text_:online in 2757) [ClassicSimilarity], result of:
          0.0415382 = score(doc=2757,freq=2.0), product of:
            0.1548489 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.051022716 = queryNorm
            0.2682499 = fieldWeight in 2757, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0625 = fieldNorm(doc=2757)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)

Abstract

The paper describes techniques developed by Tome Associates to process natural language queries into search statements suitable for transmission to online text database systems. The problems discussed include word identification, the handling of unknown words, the contents and structure of system dictionaries, the use of semantic categories and classification, disambiguation of multi-meaning words, stemming and truncation, noun compounds and indications of relationship between search terms