The dynamics of triads in aggregated journal–journal citation relations: Specialty developments at the above-journal level
نویسندگان
چکیده
منابع مشابه
The dynamics of triads in aggregated journal-journal citation relations: Specialty developments at the above-journal level
Dyads of journals—related by citations—can agglomerate into specialties through the mechanism of triadic closure. Using the Journal Citation Reports 2011, 2012, and 2013, we analyze triad formation as indicators of integration (specialty growth) and disintegration (restructuring). The strongest integration is found among the large journals that report on studies in different scientific specialt...
متن کاملClassification of scientific networks using aggregated journal-journal citation relations in the Journal Citation Reports
I propose an approach to classifying scientific networks in terms of aggregated journal-journal citation relations of the ISI Journal Citation Reports using the affinity propagation method. This algorithm is applied to obtain the classification of SCI and SSCI journals by minimizing intracategory journal-journal (J-J) distances in the database, where distance between journals is calculated from...
متن کاملthe effect of authentic listening materials on the listening proficiency of efl learners in the intermediate level
having conducted the experiment and analysed the data, the researcher computed the groups mean scores and variances for the test relating to the research question. as the final atep, a t-test was conodonted for the hypothesis. as noted earlier, the significance level was determined at .05 and .01 respectively. the observed t-value was higher than the critical t-value at. 5 and .01 levels. conse...
15 صفحه اولCan "Hot Spots" in the Sciences Be Mapped Using the Dynamics of Aggregated Journal-Journal Citation Relations?
Using three years of the Journal Citation Reports (2011, 2012, and 2013), indicators of change are developed involving only changes of more than one standard deviation above average. Two forms of change are distinguished: monotonic increases or decreases of citation intensity (cited or citing) and critical revisions of the a posteriori (2013) prediction in 2012 on the basis of 2011 data. Change...
متن کاملCan Scientific Journals be Classified in terms of Aggregated Journal-Journal Citation Relations using the Journal Citation Reports?
The aggregated citation relations among journals included in the Science Citation Index provide us with a huge matrix which can be analyzed in various ways. Using principal component analysis or factor analysis, the factor scores can be used as indicators of the position of the cited journals in the citing dimensions of the database. Unrotated factor scores are exact, and the extraction of prin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Informetrics
سال: 2015
ISSN: 1751-1577
DOI: 10.1016/j.joi.2015.04.005