Search (4 results, page 1 of 1)

  • × theme_ss:"Citation indexing"
  • × year_i:[1980 TO 1990}
  1. Cronin. B.: Some reflections on citation habits in psychology (1980) 0.01 
    0.014225486 = product of:
  0.042676456 = sum of:
    0.042676456 = weight(_text_:on in 7775) [ClassicSimilarity], result of:
      0.042676456 = score(doc=7775,freq=2.0), product of:
        0.109763056 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.04990557 = queryNorm
        0.3888053 = fieldWeight in 7775, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.125 = fieldNorm(doc=7775)
  0.33333334 = coord(1/3)
  2. Rajan, T.N.; Guha, B.; Sayanarayana, R.: Associate relationship of concepts as seen through citations and citation index (1982) 0.01 
    0.010669115 = product of:
  0.032007344 = sum of:
    0.032007344 = weight(_text_:on in 58) [ClassicSimilarity], result of:
      0.032007344 = score(doc=58,freq=2.0), product of:
        0.109763056 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.04990557 = queryNorm
        0.29160398 = fieldWeight in 58, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.09375 = fieldNorm(doc=58)
  0.33333334 = coord(1/3)
    Source
    Universal classification II: subject analysis and ordering systems. Proc. of the 4th Int. Study Conf. on Classification research, Augsburg, 28.6.-2.7.1982. Ed.: I. Dahlberg
  3. Malanga, G.: Classifying and screening journal literature with citation data (1982) 0.01 
    0.008890929 = product of:
  0.026672786 = sum of:
    0.026672786 = weight(_text_:on in 553) [ClassicSimilarity], result of:
      0.026672786 = score(doc=553,freq=2.0), product of:
        0.109763056 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.04990557 = queryNorm
        0.24300331 = fieldWeight in 553, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.078125 = fieldNorm(doc=553)
  0.33333334 = coord(1/3)
    Source
    Universal classification I: subject analysis and ordering systems. Proc. of the 4th Int. Study Conf. on Classification Research, Augsburg, 28.6.-2.7.1982. Ed.: I. Dahlberg
  4. Pao, M.L.; Worthen, D.B.: Retrieval effectiveness by semantic and citation searching (1989) 0.01 
    0.0053345575 = product of:
  0.016003672 = sum of:
    0.016003672 = weight(_text_:on in 2288) [ClassicSimilarity], result of:
      0.016003672 = score(doc=2288,freq=2.0), product of:
        0.109763056 = queryWeight, product of:
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.04990557 = queryNorm
        0.14580199 = fieldWeight in 2288, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.199415 = idf(docFreq=13325, maxDocs=44218)
          0.046875 = fieldNorm(doc=2288)
  0.33333334 = coord(1/3)
    Abstract
    A pilot study on the relative retrieval effectiveness of semantic relevance (by terms) and pragmatic relevance (by citations) is reported. A single database has been constructed to provide access by both descriptors and cited references. For each question from a set of queries, two equivalent sets were retrieved. All retrieved items were evaluated by subject experts for relevance to their originating queries. We conclude that there are essentially two types of relevance at work resulting in two different sets of documents. Using both search methods to create a union set is likely to increase recall. Those few retrieved by the intersection of the two methods tend to result in higher precision. Suggestions are made to develop a front-end system to display the overlapping items for higher precision and to manipulate and rank the union set sets retrieved by the two search modes for improved output

Authors