Power-law distributions for the citation index of scientific publications and scientists
نویسندگان
چکیده
منابع مشابه
Gradually Truncated Power Law distribution - citation of scientists
The number of times, a scientist is cited in other scientific publications is now an important factor in his merit consideration. Normally citation indices of highly cited scientists are available, which in turn give information only about the dynamics of the citation mechanism of this group. In the present work, we studied the statistical distribution of the citation index of Brazilian scienti...
متن کاملThe Citation Merit of Scientific Publications
We propose a new method to assess the merit of any set of scientific papers in a given field based on the citations they receive. Given a field and a citation impact indicator, such as the mean citation or the [Formula: see text]-index, the merit of a given set of [Formula: see text] articles is identified with the probability that a randomly drawn set of [Formula: see text] articles from a giv...
متن کاملPower-law citation distributions are not scale-free
We analyze time evolution of statistical distributions of citations to scientific papers published in the same year. While these distributions seem to follow the power-law dependence we find that they are nonstationary and the exponent of the power-law fit decreases with time and does not come to saturation. We attribute the nonstationarity of citation distributions to different longevity of th...
متن کاملAre the discretised lognormal and hooked power law distributions plausible for citation data?
There is no agreement over which statistical distribution is most appropriate for modelling citation count data. This is important because if one distribution is accepted then the relative merits of different citation-based indicators, such as percentiles, arithmetic means and geometric means, can be more fully assessed. In response, this article investigates the plausibility of the discretised...
متن کاملthe role of semantic and communicative translation on reading comprehension of scientific texts
the following null hypothesis was proposed: h : there is no significant difference between the use of semantically or communicatively translates scientific texts. to test the null hypothesis, a number of procedures were taken first, two passages were selected form soyrcebooks of food and nutrition industry and gardening deciplines. each, in turn, was following by a number of comprehension quest...
15 صفحه اولذخیره 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: Brazilian Journal of Physics
سال: 2005
ISSN: 0103-9733
DOI: 10.1590/s0103-97332005000600012