Search (2 results, page 1 of 1)

  • × author_ss:"Tsay, M.-y."
  1. Tsay, M.-y.: Literature growth, journal characteristics, and suthor productivity in subject indexing, 1977 to 2000 (2004) 0.04
    0.041113295 = product of:
      0.10963546 = sum of:
        0.067414425 = weight(_text_:storage in 2070) [ClassicSimilarity], result of:
          0.067414425 = score(doc=2070,freq=2.0), product of:
            0.1866346 = queryWeight, product of:
              5.4488444 = idf(docFreq=516, maxDocs=44218)
              0.034252144 = queryNorm
            0.36121076 = fieldWeight in 2070, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.4488444 = idf(docFreq=516, maxDocs=44218)
              0.046875 = fieldNorm(doc=2070)
        0.020776404 = weight(_text_:retrieval in 2070) [ClassicSimilarity], result of:
          0.020776404 = score(doc=2070,freq=2.0), product of:
            0.10360982 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.034252144 = queryNorm
            0.20052543 = fieldWeight in 2070, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=2070)
        0.021444622 = weight(_text_:systems in 2070) [ClassicSimilarity], result of:
          0.021444622 = score(doc=2070,freq=2.0), product of:
            0.10526281 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.034252144 = queryNorm
            0.2037246 = fieldWeight in 2070, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.046875 = fieldNorm(doc=2070)
      0.375 = coord(3/8)
    
    Abstract
    This study employed the Perl program, Excel software, and some bibliometric techniques to investigate growth pattern, journal characteristics, and author productivity of the subject indexing literature from 1977 to 2000, based an the subject search of a descriptor field in the Library and Information Science Abstracts (LISA) database. The literature growth from 1977 to 2000 in subject indexing could be fitted well by the logistic curve. The Bradford plot of journal literature fits the typical Bradford-Zipf S-shaped curve. Twenty core journals making a significant contribution could be identified from the Bradford-Zipf distribution. Four major research topics in the area of subject indexing were identified as: (1) information organization, (2) information processing, (3) information storage and retrieval, and (4) information systems and services. It was also found that a vast majority of authors (76.7%) contributed only one article, which is a much larger percentage than the 60% of original Lotka's data. The 15 most productive authors and the key concepts of their research were identified.
  2. Tsay, M.-y.; Shu, Z.-y.: Journal bibliometric analysis : a case study on the Journal of Documentation (2011) 0.04
    0.036950413 = product of:
      0.098534435 = sum of:
        0.05617869 = weight(_text_:storage in 294) [ClassicSimilarity], result of:
          0.05617869 = score(doc=294,freq=2.0), product of:
            0.1866346 = queryWeight, product of:
              5.4488444 = idf(docFreq=516, maxDocs=44218)
              0.034252144 = queryNorm
            0.30100897 = fieldWeight in 294, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.4488444 = idf(docFreq=516, maxDocs=44218)
              0.0390625 = fieldNorm(doc=294)
        0.024485227 = weight(_text_:retrieval in 294) [ClassicSimilarity], result of:
          0.024485227 = score(doc=294,freq=4.0), product of:
            0.10360982 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.034252144 = queryNorm
            0.23632148 = fieldWeight in 294, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0390625 = fieldNorm(doc=294)
        0.01787052 = weight(_text_:systems in 294) [ClassicSimilarity], result of:
          0.01787052 = score(doc=294,freq=2.0), product of:
            0.10526281 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.034252144 = queryNorm
            0.1697705 = fieldWeight in 294, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.0390625 = fieldNorm(doc=294)
      0.375 = coord(3/8)
    
    Abstract
    Purpose - This study aims to explore the journal bibliometric characteristics of the Journal of Documentation (JOD) and the subject relationship with other disciplines by citation analysis. Design/methodology/approach - The citation data were drawn from references of each article of JOD during 1998 and 2008. Ulrich's Periodicals Directory, Library of Congress Subject Heading, retrieved from the WorldCat and LISA database were used to identify the main class, subclass and subject of cited journals and books. Findings - The results of this study revealed that journal articles are the most cited document, followed by books and book chapters, electronic resources, and conference proceedings, respectively. The three main classes of cited journals in JOD papers are library science, science, and social sciences. The three subclasses of non-LIS journals that were highly cited in JOD papers are Science, "Mathematics. Computer science", and "Industries. Land use. Labor". The three highly cited subjects of library and information science journals encompass searching, information work, and online information retrieval. The most cited main class of books in JOD papers is library and information science, followed by social sciences, science, "Philosophy. Psychology. Religion." The three highly cited subclasses of books in JOD papers are "Books (General). Writing. Paleography. Book industries and trade. Libraries. Bibliography," "Philology and linguistics," and Science, and the most cited subject of books is information storage and retrieval systems. Originality/value - Results for the present research found that information science, as represented by JOD, is a developing discipline with an expanding literature relating to multiple subject areas.