Search (10 results, page 1 of 1)

0.07495199 = product of:
  0.11242799 = sum of:
    0.086019 = weight(_text_:citation in 5767) [ClassicSimilarity], result of:
      0.086019 = score(doc=5767,freq=4.0), product of:
        0.23479973 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.050071523 = queryNorm
        0.36635053 = fieldWeight in 5767, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5767)
    0.026408987 = product of:
      0.052817974 = sum of:
        0.052817974 = weight(_text_:index in 5767) [ClassicSimilarity], result of:
          0.052817974 = score(doc=5767,freq=2.0), product of:
            0.21880072 = queryWeight, product of:
              4.369764 = idf(docFreq=1520, maxDocs=44218)
              0.050071523 = queryNorm
            0.24139762 = fieldWeight in 5767, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.369764 = idf(docFreq=1520, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5767)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

We explore the intellectual subject structure and research themes in software engineering through the identification and analysis of a core journal literature. We examine this literature via two expert perspectives: that of the author, who identified significant work by citing it (journal cocitation analysis), and that of the professional indexer, who tags published work with subject terms to facilitate retrieval from a bibliographic database (subject profile analysis). The data sources are SCISEARCH (the on-line version of Science Citation Index), and INSPEC (a database covering software engineering, computer science, and information systems). We use data visualization tools (cluster analysis, multidimensional scaling, and PFNets) to show the "intellectual maps" of software engineering. Cocitation and subject profile analyses demonstrate that software engineering is a distinct interdisciplinary field, valuing practical and applied aspects, and spanning a subject continuum from "programming-in-the-smalI" to "programming-in-the-large." This continuum mirrors the software development life cycle by taking the operating system or major application from initial programming through project management, implementation, and maintenance. Object orientation is an integral but distinct subject area in software engineering. Key differences are the importance of management and programming: (1) cocitation analysis emphasizes project management and systems development; (2) programming techniques/languages are more influential in subject profiles; (3) cocitation profiles place object-oriented journals separately and centrally while the subject profile analysis locates these journals with the programming/languages group

Theme

Citation indexing

0.064879596 = product of:
  0.19463879 = sum of:
    0.19463879 = weight(_text_:citation in 6903) [ClassicSimilarity], result of:
      0.19463879 = score(doc=6903,freq=2.0), product of:
        0.23479973 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.050071523 = queryNorm
        0.8289566 = fieldWeight in 6903, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.125 = fieldNorm(doc=6903)
  0.33333334 = coord(1/3)

Theme

Citation indexing

0.064879596 = product of:
  0.19463879 = sum of:
    0.19463879 = weight(_text_:citation in 6904) [ClassicSimilarity], result of:
      0.19463879 = score(doc=6904,freq=2.0), product of:
        0.23479973 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.050071523 = queryNorm
        0.8289566 = fieldWeight in 6904, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.125 = fieldNorm(doc=6904)
  0.33333334 = coord(1/3)

Theme

Citation indexing

0.05815574 = product of:
  0.08723361 = sum of:
    0.06082462 = weight(_text_:citation in 2388) [ClassicSimilarity], result of:
      0.06082462 = score(doc=2388,freq=2.0), product of:
        0.23479973 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.050071523 = queryNorm
        0.25904894 = fieldWeight in 2388, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2388)
    0.026408987 = product of:
      0.052817974 = sum of:
        0.052817974 = weight(_text_:index in 2388) [ClassicSimilarity], result of:
          0.052817974 = score(doc=2388,freq=2.0), product of:
            0.21880072 = queryWeight, product of:
              4.369764 = idf(docFreq=1520, maxDocs=44218)
              0.050071523 = queryNorm
            0.24139762 = fieldWeight in 2388, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.369764 = idf(docFreq=1520, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2388)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

To study the structure of Iranian chemistry research, we identified 43 Iranian and international chemists who were highly cited in 7,682 Iranian chemistry publications (defined as an article with at least one Iranian author address) indexed in Science Citation Index (SciSearch) between 1990 and 2006, inclusive. We collected cocitation data for these authors from the entire SciSearch file (Dialog, File 34) over the time period. A principal components analysis identified seven interrelated factors accounting for 78% of the variance in the cocitation matrix. Iranian and international authors tended to load on separate factors. Three factors - synthesis of carbonyl compounds, solvent-free synthesis of organic compounds and oxidation of organic compounds - had an inter-correlation of 0.3 or higher. Physical organic chemistry and ionophores (a mixed factor of Iranian and international authors) connected at a lower value, while crown ethers and analytical chemistry were essentially uncorrelated. The PFNet structure maintained the topical factor groupings and Iranian and international authors tended to appear in separate subnetworks. Geographic and institutional influences, apparently relating in part to institutional affiliation and in part to restricted research topics, appear to underlie the primary structural features of Iranian chemistry in this time period.

0.056769647 = product of:
  0.17030893 = sum of:
    0.17030893 = weight(_text_:citation in 5505) [ClassicSimilarity], result of:
      0.17030893 = score(doc=5505,freq=2.0), product of:
        0.23479973 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.050071523 = queryNorm
        0.725337 = fieldWeight in 5505, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.109375 = fieldNorm(doc=5505)
  0.33333334 = coord(1/3)

Theme

Citation indexing

0.056187384 = product of:
  0.16856214 = sum of:
    0.16856214 = weight(_text_:citation in 5020) [ClassicSimilarity], result of:
      0.16856214 = score(doc=5020,freq=6.0), product of:
        0.23479973 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.050071523 = queryNorm
        0.71789753 = fieldWeight in 5020, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.0625 = fieldNorm(doc=5020)
  0.33333334 = coord(1/3)

Abstract

Presents an extensive domain analysis of information science in terms of its authors. Names of those most frequently cited in 12 key journals from 1972 through 1995 were retrieved from Social SciSearch via Dialog. The top 120 were submitted to author co-citation analyzes, yielding automatic classifications relevant to histories of the field

Theme

Citation indexing

0.051856413 = product of:
  0.07778462 = sum of:
    0.06082462 = weight(_text_:citation in 2260) [ClassicSimilarity], result of:
      0.06082462 = score(doc=2260,freq=2.0), product of:
        0.23479973 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.050071523 = queryNorm
        0.25904894 = fieldWeight in 2260, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2260)
    0.01696 = product of:
      0.03392 = sum of:
        0.03392 = weight(_text_:22 in 2260) [ClassicSimilarity], result of:
          0.03392 = score(doc=2260,freq=2.0), product of:
            0.17534193 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050071523 = queryNorm
            0.19345059 = fieldWeight in 2260, 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=2260)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)

Abstract

This study explores the usefulness of full-text retrieval in assessing obliteration by incorporation (OBI) by comparing patterns of OBI and citation substitution across economics, management, and psychology for two concept catch phrases-bounded rationality and satisficing. Searches using each term are conducted in JSTOR and in selected additional full-text journal sources from over the years 1987-2011. Two measures of OBI are used, one simply tallying the presence or absence of references to Simon's oeuvre (strict OBI) linked to the catch phrase and one counting only papers lacking any embedded reference as evidence of obliteration (lenient OBI). By either measure, OBI existed but varied across subject area, time period, and catch phrase. Economics had the highest strict OBI (82%) and lenient OBI (43%) for bounded rationality and the highest strict OBI (64%) for satisficing; all 3 subject areas were essentially tied for lenient OBI at about 30%. Sixty-two percent of the articles for bounded rationality-psychology were retrieved only because the catch phrase occurred in a title in the article bibliography. OBI research can benefit from full-text searching; the main tradeoff is more detailed and nuanced evidence concerning OBI existence and trends versus increased noise in the retrieval.

Date

15.10.2015 19:22:55

0.049663093 = product of:
  0.14898928 = sum of:
    0.14898928 = weight(_text_:citation in 485) [ClassicSimilarity], result of:
      0.14898928 = score(doc=485,freq=12.0), product of:
        0.23479973 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.050071523 = queryNorm
        0.6345377 = fieldWeight in 485, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.0390625 = fieldNorm(doc=485)
  0.33333334 = coord(1/3)

Abstract

Empirical studies of obliteration by incorporation (OBI) may be conducted at the level of the database record or the fulltext citation-in-context. To assess the difference between the two approaches, 1,040 articles with a variant of the phrase "evolutionarily stable strategies" (ESS) were identified by searching the Web of Science (Thomson Reuters, Philadelphia, PA) and discipline-level databases. The majority (72%) of all articles were published in life sciences journals. The ESS concept is associated with a small set of canonical publications by John Maynard Smith; OBI represents a decoupling of the use of the phrase and a citation to a John Maynard Smith publication. Across all articles at the record level, OBI is measured by the number of articles with the phrase in the database record but which lack a reference to a source article (implicit citations). At the citation-in-context level, articles that coupled a non-Maynard Smith citation with the ESS phrase (indirect citations) were counted along with those that cited relevant Maynard Smith publications (explicit citations) and OBI counted only based on those articles that lacked any citation coupled with the ESS text phrase. The degree of OBI observed depended on the level of analysis. Record-level OBI trended upward, peaking in 2002 (62%), with a secondary drop and rebound to 53% (2008). Citation-in-context OBI percentages were lower with no clear pattern. Several issues relating to the design of empirical OBI studies are discussed.

0.040142205 = product of:
  0.12042661 = sum of:
    0.12042661 = weight(_text_:citation in 143) [ClassicSimilarity], result of:
      0.12042661 = score(doc=143,freq=4.0), product of:
        0.23479973 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.050071523 = queryNorm
        0.51289076 = fieldWeight in 143, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.0546875 = fieldNorm(doc=143)
  0.33333334 = coord(1/3)

Abstract

This paper shows that, given co-citation data, Kohonen feature mapping produces results quite similar to those of multidimensional scaling, the traditional mode for computer-assisted mapping of intellectual domains. It further presents a Kohonen feature map based on author co-citation data that links author names to information about them on the World Wide Web. The results bear on a goal for present-day information science: the integration of computerized bibliometrics with document retrieval

0.020274874 = product of:
  0.06082462 = sum of:
    0.06082462 = weight(_text_:citation in 4479) [ClassicSimilarity], result of:
      0.06082462 = score(doc=4479,freq=2.0), product of:
        0.23479973 = queryWeight, product of:
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.050071523 = queryNorm
        0.25904894 = fieldWeight in 4479, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.6892867 = idf(docFreq=1104, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4479)
  0.33333334 = coord(1/3)

Abstract

In order to examine the phenomena of eponymy and Obliteration by Incorporation at both the aggregate and individual subject level, the literature relating to the game-theoretic concept of the Nash Equilibrium was studied over the period 1950-2008. Almost 5,300 bibliographic database records for publications explicitly citing at least one of two papers by John Nash and/or using the phrase "Nash Equilibrium/Nash Equilibria" were retrieved from the Web of Science and various subject-related databases. Breadth of influence is demonstrated by the wide variety of subject areas in which Nash Equilibrium-related publications occur, including in the natural and social sciences, humanities, law, and medicine. Fifty percent of all items have been published since 2002, suggesting that Nash's papers have experienced "delayed recognition." A degree of Obliteration by Incorporation is observed in that implicit citations (use of the phrase without citation) increased over the time period studied, although the proportion of all citations that are implicit has remained relatively stable during the most recent decade with an annual rate of between 60% and 70%; subject areas vary in their level of obliteration.