Search (3 results, page 1 of 1)

  • × author_ss:"Kostoff, R.N."
  • × year_i:[1990 TO 2000}
  1. Kostoff, R.N.: ¬The use and misuse of citation analysis in research evaluation (1998) 0.09 
    0.08569981 = product of:
  0.25709942 = sum of:
    0.25709942 = weight(_text_:citation in 4129) [ClassicSimilarity], result of:
      0.25709942 = score(doc=4129,freq=14.0), product of:
        0.23445003 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.04999695 = queryNorm
        1.0966065 = fieldWeight in 4129, product of:
          3.7416575 = tf(freq=14.0), with freq of:
            14.0 = termFreq=14.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.0625 = fieldNorm(doc=4129)
  0.33333334 = coord(1/3)
    Abstract
    Leydesdorff, in his 1998 paper 'Theories of citation?', addresses the history of citations and citation analysis, and the transformation of a reference mechanism into a purportedly quantitative measure of research impact/quality. Examines different facets of citations and citation analysis, and discusses the validity of citation analysis as a useful measure of research impact/quality
    Footnote
    Contribution to a thematic issue devoted to 'Theories of citation?'
    Theme
    Citation indexing
  2. Kostoff, R.N.: Citation analysis cross field normalization : a new paradigm (1997) 0.05 
    0.045808475 = product of:
  0.13742542 = sum of:
    0.13742542 = weight(_text_:citation in 464) [ClassicSimilarity], result of:
      0.13742542 = score(doc=464,freq=4.0), product of:
        0.23445003 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.04999695 = queryNorm
        0.58616084 = fieldWeight in 464, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.0625 = fieldNorm(doc=464)
  0.33333334 = coord(1/3)
    Theme
    Citation indexing
  3. Kostoff, R.N.; Eberhart, H.J.; Toothman, D.R.: Database tomography for information retrieval (1997) 0.03 
    0.028342549 = product of:
  0.08502764 = sum of:
    0.08502764 = weight(_text_:citation in 1) [ClassicSimilarity], result of:
      0.08502764 = score(doc=1,freq=2.0), product of:
        0.23445003 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.04999695 = queryNorm
        0.3626685 = fieldWeight in 1, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1)
  0.33333334 = coord(1/3)
    Abstract
    Database tomography is an information extraction and analysis system which operates on textual databases. Its primary use to date has been to idetify pervasive technical trends and themes, and the interrelationships among these main algorithmic components are multiword phrase frequency analysis and phrase proximity analysis. Shows how database tomography can be used to enhance information retrieval from large textual databases through the newly developed process of simulated nucleation. Discusses the principles of simulated nucleation and the advantages for information retrieval. Describes an application involving the development, from Science Citation Index and Engineering Compendex, a database of periodical articles focused on near Earth space and technology

Authors

Themes