Search (154 results, page 1 of 8)

  • × theme_ss:"Informetrie"
  1. Ohly, H.P.: ¬Die Bibliometrie ist tot - es lebe die Bibliometrie (2003) 0.10 
    0.10311131 = product of:
  0.20622262 = sum of:
    0.1428331 = weight(_text_:jasist in 3030) [ClassicSimilarity], result of:
      0.1428331 = score(doc=3030,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.33494282 = fieldWeight in 3030, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.0390625 = fieldNorm(doc=3030)
    0.063389525 = weight(_text_:und in 3030) [ClassicSimilarity], result of:
      0.063389525 = score(doc=3030,freq=22.0), product of:
        0.15599272 = queryWeight, product of:
          2.217899 = idf(docFreq=13141, maxDocs=44421)
          0.07033355 = queryNorm
        0.4063621 = fieldWeight in 3030, product of:
          4.690416 = tf(freq=22.0), with freq of:
            22.0 = termFreq=22.0
          2.217899 = idf(docFreq=13141, maxDocs=44421)
          0.0390625 = fieldNorm(doc=3030)
  0.5 = coord(2/4)
    Abstract
    Vom 5. bis 7. November 2003 findet auf Initiative und in der Verantwortung der Zentralbibliothek des Forschungszentrums Jülich die Konferenz "Bibliometric Analysis in Science and Research" statt: Bibliometrische Indikatoren, Bibliomefrisches Mapping, Webmetrie und Forschungspolitik stehen auf dem Programm. Nach einer Phase der Beruhigung auf dem Bibliometriesektor scheint dieses Forschungsfeld nun von der Bibliothekswissenschaft wieder eine Belebung zu erfahren. Vor allem in den 80erJahren wurden Gesetze von Bradford, Lotka und Zipf heiß diskutiert. Halbwertszeiten, Forschungsfronten und Kernzeitschriften sind Dank der Datenbanken des ISI problemlos aufzuspüren und werden gerne zur Selbstbespiegelung der Wissenschaft benutzt (Diodalo 1994). Die Zeitschrifen Scientometrics und die JASIST belegen, dass die mathematischen Modellierungen auf diesem Gebiet noch immer nicht an ihre Grenzen gestoßen sind. Und Vereinigungen wie die Gesellschaft für Wissenschaftsforschung oder die ISSI und deren Diskussionsliste oder Sigmetrics zeigen, dass nach wie vor eine starke Community auf diesem Gebiet aktiv ist. Andererseits hat der Begriff Bibliometrie ein wenig von seinem schillernden Glanz verloren und wird gerne durch Mapping, Cybermetrics (gleichnamig das "International Journal of Scientometrics, Informetrics and Bibliometrics"), Information Mining und anders in modernere Kontexte gesetzt (Park/Thelwall 2003). War es das relativierende Wissenschaftsverständnis, der Wegfall der konkurrierenden politischen Systeme oder die stürmische Medienentwicklung in der Wissenschaft, welche die Bibliometrie aus der Bibliotheks- und Informationsdiskussion vorübergehend verschwinden ließ?
  2. He, S.; Spink, A.: ¬A comparison of foreign authorship distribution in JASIST and the Journal of Documentation (2002) 0.10 
    0.09998317 = product of:
  0.39993268 = sum of:
    0.39993268 = weight(_text_:jasist in 230) [ClassicSimilarity], result of:
      0.39993268 = score(doc=230,freq=8.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.9378399 = fieldWeight in 230, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.0546875 = fieldNorm(doc=230)
  0.25 = coord(1/4)
    Abstract
    He and Spink count the first authors in JASIST and JDoc from 1950 to 1999 whose affiliation is outside the country of origin of each publication and record the time period and the author's geographic location. Foreign authorship in JASIST increased nearly four fold from 1995 to 1999 and the number of represented locations 3.6 times while in the same time period JDoc's foreign authorship doubled and foreign locations increased four fold. The largest foreign location for JDoc is the USA and the largest foreign location for JASIST is the UK. Canada is second on both lists.
  3. Nicolaisen, J.; Frandsen, T.F.: Bibliometric evolution : is the journal of the association for information science and technology transforming into a specialty Journal? (2015) 0.09 
    0.086587965 = product of:
  0.34635186 = sum of:
    0.34635186 = weight(_text_:jasist in 2821) [ClassicSimilarity], result of:
      0.34635186 = score(doc=2821,freq=6.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.8121932 = fieldWeight in 2821, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.0546875 = fieldNorm(doc=2821)
  0.25 = coord(1/4)
    Abstract
    Applying a recently developed method for measuring the level of specialization over time for a selection of library and information science (LIS)-core journals seems to reveal that Journal of the Association for Information Science and Technology (JASIST) is slowly transforming into a specialty journal. The transformation seems to originate from a growing interest in bibliometric topics. This is evident from a longitudinal study (1990-2012) of the bibliometric coupling strength between Scientometrics and other LIS-core journals (including JASIST). The cause of this gradual transformation is discussed, and possible explanations are analyzed.
    Object
    JASIST
  4. Cabanac, G.; Hartley, J.: Issues of work-life balance among JASIST authors and editors (2013) 0.09 
    0.085699864 = product of:
  0.34279945 = sum of:
    0.34279945 = weight(_text_:jasist in 1996) [ClassicSimilarity], result of:
      0.34279945 = score(doc=1996,freq=8.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.8038628 = fieldWeight in 1996, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.046875 = fieldNorm(doc=1996)
  0.25 = coord(1/4)
    Abstract
    Many dedicated scientists reject the concept of maintaining a "work-life balance." They argue that work is actually a huge part of life. In the mind-set of these scientists, weekdays and weekends are equally appropriate for working on their research. Although we all have encountered such people, we may wonder how widespread this condition is with other scientists in our field. This brief communication probes work-life balance issues among JASIST authors and editors. We collected and examined the publication histories for 1,533 of the 2,402 articles published in JASIST between 2001 and 2012. Although there is no rush to submit, revise, or accept papers, we found that 11% of these events happened during weekends and that this trend has been increasing since 2005. Our findings suggest that working during the weekend may be one of the ways that scientists cope with the highly demanding era of "publish or perish." We hope that our findings will raise an awareness of the steady increases in work among scientists before it affects our work-life balance even more.
    Object
    JASIST
  5. Zhang, P.; Wang, OP.; Wu, Q.: How are the best JASIST papers cited? (2018) 0.07 
    0.07141655 = product of:
  0.2856662 = sum of:
    0.2856662 = weight(_text_:jasist in 259) [ClassicSimilarity], result of:
      0.2856662 = score(doc=259,freq=8.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.66988564 = fieldWeight in 259, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.0390625 = fieldNorm(doc=259)
  0.25 = coord(1/4)
    Abstract
    This study compares the 45 "Best Paper" award articles with nonaward articles published in the Journal of Association for Information Science and Technology (JASIST) to observe the differences in citations. The results show that, in most cases, the citations of the award articles are more numerous than the median, belonging to the Top-50% stratum. Only 15.6% of the award articles have the status of being the most-cited article of the year in which the article was published; 24.4% belong to the Top-5% stratum of the publication year; 44.4% belong to the Top-10% stratum of the publication year; and 73.3% belong to the Top-25% stratum of the publication year. Surprisingly, from 2000 to 2012, none of the award articles made it to the Top-10% stratum, apart from the year 2004; the least-cited award article received only three citations during a 5-year period. The results show a wide range of citations among the Best JASIST Papers. This study also observes that the number of articles changed little from 1969 to 1995 but grew rapidly from 1996 to 2012. Suggestions for possible ways to better meet the challenges of the journal's growth in size and scope in selecting award articles are provided.
    Object
    JASIST
  6. Tavakolizadeh-Ravari, M.: Analysis of the long term dynamics in thesaurus developments and its consequences (2017) 0.06 
    0.060769904 = product of:
  0.12153981 = sum of:
    0.04835163 = weight(_text_:und in 4081) [ClassicSimilarity], result of:
      0.04835163 = score(doc=4081,freq=20.0), product of:
        0.15599272 = queryWeight, product of:
          2.217899 = idf(docFreq=13141, maxDocs=44421)
          0.07033355 = queryNorm
        0.3099608 = fieldWeight in 4081, product of:
          4.472136 = tf(freq=20.0), with freq of:
            20.0 = termFreq=20.0
          2.217899 = idf(docFreq=13141, maxDocs=44421)
          0.03125 = fieldNorm(doc=4081)
    0.07318818 = weight(_text_:headings in 4081) [ClassicSimilarity], result of:
      0.07318818 = score(doc=4081,freq=2.0), product of:
        0.3412866 = queryWeight, product of:
          4.8524013 = idf(docFreq=942, maxDocs=44421)
          0.07033355 = queryNorm
        0.21444786 = fieldWeight in 4081, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.8524013 = idf(docFreq=942, maxDocs=44421)
          0.03125 = fieldNorm(doc=4081)
  0.5 = coord(2/4)
    Abstract
    Die Arbeit analysiert die dynamische Entwicklung und den Gebrauch von Thesaurusbegriffen. Zusätzlich konzentriert sie sich auf die Faktoren, die die Zahl von Indexbegriffen pro Dokument oder Zeitschrift beeinflussen. Als Untersuchungsobjekt dienten der MeSH und die entsprechende Datenbank "MEDLINE". Die wichtigsten Konsequenzen sind: 1. Der MeSH-Thesaurus hat sich durch drei unterschiedliche Phasen jeweils logarithmisch entwickelt. Solch einen Thesaurus sollte folgenden Gleichung folgen: "T = 3.076,6 Ln (d) - 22.695 + 0,0039d" (T = Begriffe, Ln = natürlicher Logarithmus und d = Dokumente). Um solch einen Thesaurus zu konstruieren, muss man demnach etwa 1.600 Dokumente von unterschiedlichen Themen des Bereiches des Thesaurus haben. Die dynamische Entwicklung von Thesauri wie MeSH erfordert die Einführung eines neuen Begriffs pro Indexierung von 256 neuen Dokumenten. 2. Die Verteilung der Thesaurusbegriffe erbrachte drei Kategorien: starke, normale und selten verwendete Headings. Die letzte Gruppe ist in einer Testphase, während in der ersten und zweiten Kategorie die neu hinzukommenden Deskriptoren zu einem Thesauruswachstum führen. 3. Es gibt ein logarithmisches Verhältnis zwischen der Zahl von Index-Begriffen pro Aufsatz und dessen Seitenzahl für die Artikeln zwischen einer und einundzwanzig Seiten. 4. Zeitschriftenaufsätze, die in MEDLINE mit Abstracts erscheinen erhalten fast zwei Deskriptoren mehr. 5. Die Findablity der nicht-englisch sprachigen Dokumente in MEDLINE ist geringer als die englische Dokumente. 6. Aufsätze der Zeitschriften mit einem Impact Factor 0 bis fünfzehn erhalten nicht mehr Indexbegriffe als die der anderen von MEDINE erfassten Zeitschriften. 7. In einem Indexierungssystem haben unterschiedliche Zeitschriften mehr oder weniger Gewicht in ihrem Findability. Die Verteilung der Indexbegriffe pro Seite hat gezeigt, dass es bei MEDLINE drei Kategorien der Publikationen gibt. Außerdem gibt es wenige stark bevorzugten Zeitschriften."
    Footnote
    Dissertation, Humboldt-Universität zu Berlin - Institut für Bibliotheks- und Informationswissenschaft.
    Imprint
    Berlin : Humboldt-Universität zu Berlin / Institut für Bibliotheks- und Informationswissenschaft
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  7. Chua, A.Y.K.; Yang, C.C.: ¬The shift towards multi-disciplinarity in information science (2008) 0.06 
    0.06059895 = product of:
  0.2423958 = sum of:
    0.2423958 = weight(_text_:jasist in 3389) [ClassicSimilarity], result of:
      0.2423958 = score(doc=3389,freq=4.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.56841683 = fieldWeight in 3389, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.046875 = fieldNorm(doc=3389)
  0.25 = coord(1/4)
    Abstract
    This article analyzes the collaboration trends, authorship and keywords of all research articles published in the Journal of American Society for Information Science and Technology (JASIST). Comparing the articles between two 10-year periods, namely, 1988-1997 and 1998-2007, the three-fold objectives are to analyze the shifts in (a) authors' collaboration trends (b) top authors, their affiliations as well as the pattern of coauthorship among them, and (c) top keywords and the subdisciplines from which they emerge. The findings reveal a distinct tendency towards collaboration among authors, with external collaborations becoming more prevalent. Top authors have grown in diversity from those being affiliated predominantly with library/information-related departments to include those from information systems management, information technology, businesss, and the humanities. Amid heterogeneous clusters of collaboration among top authors, strongly connected cross-disciplinary coauthor pairs have become more prevalent. Correspondingly, the distribution of top keywords' occurrences that leans heavily on core information science has shifted towards other subdisciplines such as information technology and sociobehavioral science.
    Object
    JASIST
  8. Stuart, D.: Web metrics for library and information professionals (2014) 0.06 
    0.05945187 = product of:
  0.11890374 = sum of:
    0.09998317 = weight(_text_:jasist in 3274) [ClassicSimilarity], result of:
      0.09998317 = score(doc=3274,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.23445998 = fieldWeight in 3274, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.02734375 = fieldNorm(doc=3274)
    0.018920569 = weight(_text_:und in 3274) [ClassicSimilarity], result of:
      0.018920569 = score(doc=3274,freq=4.0), product of:
        0.15599272 = queryWeight, product of:
          2.217899 = idf(docFreq=13141, maxDocs=44421)
          0.07033355 = queryNorm
        0.121291354 = fieldWeight in 3274, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          2.217899 = idf(docFreq=13141, maxDocs=44421)
          0.02734375 = fieldNorm(doc=3274)
  0.5 = coord(2/4)
    BK
    06.00 Information und Dokumentation: Allgemeines
    Classification
    06.00 Information und Dokumentation: Allgemeines
    Footnote
    Rez. in: JASIST 66(2015) no.11, S.2392-2395 (Enrique Orduña-Malea)
  9. Järvelin, K.; Persson, O.: ¬The DCI-index : discounted cumulated impact-based research evaluation (2008) 0.06 
    0.05713324 = product of:
  0.22853296 = sum of:
    0.22853296 = weight(_text_:jasist in 3332) [ClassicSimilarity], result of:
      0.22853296 = score(doc=3332,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.5359085 = fieldWeight in 3332, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.0625 = fieldNorm(doc=3332)
  0.25 = coord(1/4)
    Abstract
    The article by K. Järvelin & O. Persson published in JASIST 59(9), The DCI-Index: Discounted Cumulated Impact-Based Research Evaluation, (pp. 1433-1440) contains an unfortunate error in one of its formulas, Equation 3. The present paper gives the correction and an example of impact analysis based on the corrected formula.
  10. Scholarly metrics under the microscope : from citation analysis to academic auditing (2015) 0.06 
    0.05713324 = product of:
  0.22853296 = sum of:
    0.22853296 = weight(_text_:jasist in 654) [ClassicSimilarity], result of:
      0.22853296 = score(doc=654,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.5359085 = fieldWeight in 654, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.0625 = fieldNorm(doc=654)
  0.25 = coord(1/4)
    Footnote
    Rez. in JASIST 67(2017) no.2, S.537-538 (Ronald Rousseau).
  11. Haiqi, Z.: ¬The literature of Qigong : publication patterns and subject headings (1997) 0.05 
    0.045282878 = product of:
  0.18113151 = sum of:
    0.18113151 = weight(_text_:headings in 1862) [ClassicSimilarity], result of:
      0.18113151 = score(doc=1862,freq=4.0), product of:
        0.3412866 = queryWeight, product of:
          4.8524013 = idf(docFreq=942, maxDocs=44421)
          0.07033355 = queryNorm
        0.5307314 = fieldWeight in 1862, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.8524013 = idf(docFreq=942, maxDocs=44421)
          0.0546875 = fieldNorm(doc=1862)
  0.25 = coord(1/4)
    Abstract
    Reports results of a bibliometric study of the literature of Qigong: a relaxation technique used to teach patients to control their heart rate, blood pressure, temperature and other involuntary functions through controlles breathing. All articles indexed in the MEDLINE CD-ROM database, between 1965 and 1995 were identified using 'breathing exercises' MeSH term. The articles were analyzed for geographical and language distribution and a ranking exercise enabled a core list of periodicals to be identified. In addition, the study shed light on the changing frequency of the MeSH terms and evaluated the research areas by measuring the information from these respective MeSH headings
  12. Burrell, Q.L.: "Ambiguity" ans scientometric measurement : a dissenting view (2001) 0.04 
    0.042849932 = product of:
  0.17139973 = sum of:
    0.17139973 = weight(_text_:jasist in 981) [ClassicSimilarity], result of:
      0.17139973 = score(doc=981,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.4019314 = fieldWeight in 981, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.046875 = fieldNorm(doc=981)
  0.25 = coord(1/4)
    Abstract
    Abe Bookstein has long been a persuasive advocate of the central role of the classical Lotka-Bradford-Zipf "laws" in bibliometrics and, subsequently, scientometrics and informetrics. In a series of often-quoted papers (Bookstein, 1977, 1990a, 1990b, 1997), he has sought to demonstrate that "Lotka-type" laws have a unique resilience to various forms of reporting, which leads inevitably and naturally to their observance in empirical informetric data collected under a wide variety of circumstances. A general statement of his position was featured in the recent JASIST Special Topic Issue on Information Science at the Millennium (Bookstein, 2001). We shall argue that there are grounds to dispute some of the logic, the mathematics, and the reality of the development. The contention is on the one hand that Bookstein's development lacks a rigorous mathematical basis, and on the other, that, in general, informetric processes are adequately described within a standard probabilistic framework with stochastic modelling offering the more productive approach.
  13. Jonkers, K.; Derrick, G.E.: ¬The bibliometric bandwagon : characteristics of bibliometric articles outside the field literature (2012) 0.04 
    0.042849932 = product of:
  0.17139973 = sum of:
    0.17139973 = weight(_text_:jasist in 1261) [ClassicSimilarity], result of:
      0.17139973 = score(doc=1261,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.4019314 = fieldWeight in 1261, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.046875 = fieldNorm(doc=1261)
  0.25 = coord(1/4)
    Content
    Erratum dazu in: JASIST 63(2012) no.6, S.1280.
  14. Gazni, A.; Sugimoto, C.R.; Didegah, F.: Mapping world scientific collaboration : authors, institutions, and countries (2012) 0.04 
    0.042849932 = product of:
  0.17139973 = sum of:
    0.17139973 = weight(_text_:jasist in 2141) [ClassicSimilarity], result of:
      0.17139973 = score(doc=2141,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.4019314 = fieldWeight in 2141, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.046875 = fieldNorm(doc=2141)
  0.25 = coord(1/4)
    Content
    Erratum in JASIST 64(2013) no.12, S.2600.
  15. Leydesdorff, L.; Rotolo, D.; Rafols, I.: Bibliometric perspectives on medical innovation using the medical subject headings of PubMed (2012) 0.04 
    0.038813893 = product of:
  0.15525557 = sum of:
    0.15525557 = weight(_text_:headings in 1494) [ClassicSimilarity], result of:
      0.15525557 = score(doc=1494,freq=4.0), product of:
        0.3412866 = queryWeight, product of:
          4.8524013 = idf(docFreq=942, maxDocs=44421)
          0.07033355 = queryNorm
        0.4549126 = fieldWeight in 1494, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.8524013 = idf(docFreq=942, maxDocs=44421)
          0.046875 = fieldNorm(doc=1494)
  0.25 = coord(1/4)
    Abstract
    Multiple perspectives on the nonlinear processes of medical innovations can be distinguished and combined using the Medical Subject Headings (MeSH) of the MEDLINE database. Focusing on three main branches-"diseases," "drugs and chemicals," and "techniques and equipment"-we use base maps and overlay techniques to investigate the translations and interactions and thus to gain a bibliometric perspective on the dynamics of medical innovations. To this end, we first analyze the MEDLINE database, the MeSH index tree, and the various options for a static mapping from different perspectives and at different levels of aggregation. Following a specific innovation (RNA interference) over time, the notion of a trajectory which leaves a signature in the database is elaborated. Can the detailed index terms describing the dynamics of research be used to predict the diffusion dynamics of research results? Possibilities are specified for further integration between the MEDLINE database on one hand, and the Science Citation Index and Scopus (containing citation information) on the other.
  16. Leydesdorff, L.; Opthof, T.: Citation analysis with medical subject Headings (MeSH) using the Web of Knowledge : a new routine (2013) 0.04 
    0.038813893 = product of:
  0.15525557 = sum of:
    0.15525557 = weight(_text_:headings in 1943) [ClassicSimilarity], result of:
      0.15525557 = score(doc=1943,freq=4.0), product of:
        0.3412866 = queryWeight, product of:
          4.8524013 = idf(docFreq=942, maxDocs=44421)
          0.07033355 = queryNorm
        0.4549126 = fieldWeight in 1943, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.8524013 = idf(docFreq=942, maxDocs=44421)
          0.046875 = fieldNorm(doc=1943)
  0.25 = coord(1/4)
    Abstract
    Citation analysis of documents retrieved from the Medline database (at the Web of Knowledge) has been possible only on a case-by-case basis. A technique is presented here for citation analysis in batch mode using both Medical Subject Headings (MeSH) at the Web of Knowledge and the Science Citation Index at the Web of Science (WoS). This freeware routine is applied to the case of "Brugada Syndrome," a specific disease and field of research (since 1992). The journals containing these publications, for example, are attributed to WoS categories other than "cardiac and cardiovascular systems", perhaps because of the possibility of genetic testing for this syndrome in the clinic. With this routine, all the instruments available for citation analysis can now be used on the basis of MeSH terms. Other options for crossing between Medline, WoS, and Scopus are also reviewed.
  17. Leydesdorff, L.; Heimeriks, G.: ¬The self-organization of the European information society : the case of "biotechnology" (2001) 0.04 
    0.035708275 = product of:
  0.1428331 = sum of:
    0.1428331 = weight(_text_:jasist in 524) [ClassicSimilarity], result of:
      0.1428331 = score(doc=524,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.33494282 = fieldWeight in 524, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.0390625 = fieldNorm(doc=524)
  0.25 = coord(1/4)
    Footnote
    Vgl. auch die Stellungnahme von P. van den Besselaar: Empirical evidence of self-organization? in: JASIST 54(2003) no.1, S.87-90.
  18. Sin, S.-C.J.: International coauthorship and citation impact : a bibliometric study of six LIS journals, 1980-2008 (2011) 0.04 
    0.035708275 = product of:
  0.1428331 = sum of:
    0.1428331 = weight(_text_:jasist in 753) [ClassicSimilarity], result of:
      0.1428331 = score(doc=753,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.33494282 = fieldWeight in 753, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.0390625 = fieldNorm(doc=753)
  0.25 = coord(1/4)
    Abstract
    International collaborative papers are increasingly common in journals of many disciplines. These types of papers are often cited more frequently. To identify the coauthorship trends within Library and Information Science (LIS), this study analyzed 7,489 papers published in six leading publications (ARIST, IP&M, JAMIA, JASIST, MISQ, and Scientometrics) over the last three decades. Logistic regression tested the relationships between citations received and seven factors: authorship type, author's subregion, country income level, publication year, number of authors, document type, and journal title. The main authorship type since 1995 was national collaboration. It was also the dominant type for all publications studied except ARIST, and for all regions except Africa. For citation counts, the logistic regression analysis found all seven factors were significant. Papers that included international collaboration, Northern European authors, and authors in high-income nations had higher odds of being cited more. Papers from East Asia, Southeast Asia, and Southern Europe had lower odds than North American papers. As discussed in the bibliometric literature, Merton's Matthew Effect sheds light on the differential citation counts based on the authors' subregion. This researcher proposes geographies of invisible colleagues and a geographic scope effect to further investigate the relationships between author geographic affiliation and citation impact.
  19. Thelwall, M.: Web indicators for research evaluation : a practical guide (2016) 0.04 
    0.035708275 = product of:
  0.1428331 = sum of:
    0.1428331 = weight(_text_:jasist in 4384) [ClassicSimilarity], result of:
      0.1428331 = score(doc=4384,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.33494282 = fieldWeight in 4384, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.0390625 = fieldNorm(doc=4384)
  0.25 = coord(1/4)
    Footnote
    Rez. in: JASIST 69(2018) no.3, S.498-499 (Isidro F. Aguillo).
  20. Rousseau, R.; Egghe, L.; Guns, R.: Becoming metric-wise : a bibliometric guide for researchers (2018) 0.04 
    0.035708275 = product of:
  0.1428331 = sum of:
    0.1428331 = weight(_text_:jasist in 226) [ClassicSimilarity], result of:
      0.1428331 = score(doc=226,freq=2.0), product of:
        0.42644024 = queryWeight, product of:
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.07033355 = queryNorm
        0.33494282 = fieldWeight in 226, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.0631127 = idf(docFreq=280, maxDocs=44421)
          0.0390625 = fieldNorm(doc=226)
  0.25 = coord(1/4)
    Footnote
    Rez. in: JASIST 70(2019) no.5, S.530-532 (I. Dorsch)

Authors

Years

Languages

  • d 106
  • e 46
  • m 1
  • More… Less…

Types

  • a 131
  • m 13
  • el 11
  • s 4
  • r 2
  • x 2
  • More… Less…

Themes

Subjects

Classifications