tsuomela + bibliometrics   22

[1501.05462] A Review of Theory and Practice in Scientometrics
"Scientometrics is the study of the quantitative aspects of the process of science as a communication system. It is centrally, but not only, concerned with the analysis of citations in the academic literature. In recent years it has come to play a major role in the measurement and evaluation of research performance. In this review we consider: the historical development of scientometrics, sources of citation data, citation metrics and the "laws" of scientometrics, normalisation, journal impact factors and other journal metrics, visualising and mapping science, evaluation and policy, and future developments."
bibliometrics  scientometrics  measurement  citations  citation-analysis 
january 2015 by tsuomela
Long-term variations in the aging of scientific literature: From exponential growth to steady-state science (1900–2004) - Larivière - 2007 - Journal of the American Society for Information Science and Technology - Wiley Online Library
"Despite a very large number of studies on the aging and obsolescence of scientific literature, no study has yet measured, over a very long time period, the changes in the rates at which scientific literature becomes obsolete. This article studies the evolution of the aging phenomenon and, in particular, how the age of cited literature has changed over more than 100 years of scientific activity. It shows that the average and median ages of cited literature have undergone several changes over the period. Specifically, both World War I and World War II had the effect of significantly increasing the age of the cited literature. The major finding of this article is that contrary to a widely held belief, the age of cited material has risen continuously since the mid-1960s. In other words, during that period, researchers were relying on an increasingly old body of literature. Our data suggest that this phenomenon is a direct response to the steady-state dynamics of modern science that followed its exponential growth; however, we also have observed that online preprint archives such as arXiv have had the opposite effect in some subfields."
science  literature  citations  bibliometrics  history  growth  20c  scholarly-communication 
november 2014 by tsuomela
[1407.8010] Alternative metrics in scientometrics: A meta-analysis of research into three altmetrics
"Alternative metrics are currently one of the most popular research topics in scientometric research. This paper provides an overview of research into three of the most important altmetrics: microblogging (Twitter), online reference managers (Mendeley and CiteULike) and blogging. The literature is discussed in relation to the possible use of altmetrics in research evaluation. Since the research was particularly interested in the correlation between altmetrics counts and citation counts, this overview focuses particularly on this correlation. For each altmetric, a meta-analysis is calculated for its correlation with traditional citation counts. As the results of the meta-analyses show, the correlation with traditional citations for micro-blogging counts is negligible (pooled r=0.003), for blog counts it is small (pooled r=0.12) and for bookmark counts from online reference managers, medium to large (CiteULike pooled r=0.23; Mendeley pooled r=0.51). Since the added value of an alternative metric, as an additional metric compared with traditional citation counts, is greater the less it correlates with traditional citation counts, the greatest added value - according to the meta-analysis - is associated with Twitter citations."
altmetrics  metrics  bibliometrics  measurement 
august 2014 by tsuomela
[1406.5688] Information, Meaning, and Intellectual Organization in Networks of Inter-Human Communication
"The Shannon-Weaver model of linear information transmission is extended with two loops potentially generating redundancies: (i) meaning is provided locally to the information from the perspective of hindsight, and (ii) meanings can be codified differently and then refer to other horizons of meaning. Thus, three layers are distinguished: variations in the communications, historical organization at each moment of time, and evolutionary self-organization of the codes of communication over time. Furthermore, the codes of communication can functionally be different and then the system is both horizontally and vertically differentiated. All these subdynamics operate in parallel and necessarily generate uncertainty. However, meaningful information can be considered as the specific selection of a signal from the noise; the codes of communication are social constructs that can generate redundancy by giving different meanings to the same information. Reflexively, one can translate among codes in more elaborate discourses. The second (instantiating) layer can be operationalized in terms of semantic maps using the vector space model; the third in terms of mutual redundancy among the latent dimensions of the vector space. Using Blaise Cronin's {\oe}uvre, the different operations of the three layers are demonstrated empirically. "
research  paper  bibliometrics  information-theory  communication  meaning 
june 2014 by tsuomela
Publish or Perish - Anne-Wil Harzing
"Are you applying for tenure, promotion or a new job? Do you want to include evidence of the impact of your research? Is your work cited in journals which are not ISI listed? Then you might want to try Publish or Perish, designed to help individual academics to present their case for research impact to its best advantage."
software  academic  publishing  scholarly-communication  bibliometrics  research  tool 
july 2013 by tsuomela
Science, Superstars
"What, if anything, is the world trying to tell us? On some level it seems that things are getting harder — it is tougher to be a dominant player in sports given global talent pools, better training, more mimicry, etc. Similarly, science in many important areas does seem stalled, with progress proceeding glacially, whether it is drug discovery, or fundamental physics, or energy."
science  discovery  history  sts  decline  innovation  funding  research  bibliometrics 
july 2011 by tsuomela
What Happens If Science Becomes a Low-Yield Activity? « The Scholarly Kitchen
"And what if science becomes — or has become — lower-yield? Is that a reason to reconsider funding policies? Rationally, looking at the cost-benefit may already have effects on resource and funding allocations.

Is it unreasonable to assume that science will continue to produce large, demonstrable advances and insights of the size and importance of the major breakthroughs?"
science  discovery  history  sts  decline  innovation  funding  research  bibliometrics 
july 2011 by tsuomela
Academic Productivity » ReaderMeter: Crowdsourcing research impact
ReaderMeter is a proof-of-concept application showcasing the potential of readership data obtained from reference management tools. Following the announcement of the Mendeley API, I decided to see what could be built on top of the data exposed by Mendeley and the first idea was to write a mashup aggregating author-level readership statistics based on the number of bookmarks scored by each of one’s publications.
bibliometrics  crowdsourcing  bibliography 
october 2010 by tsuomela
The impact factor's Matthew Effect: A natural experiment in bibliometrics - Larivière - 2009 - Journal of the American Society for Information Science and Technology - Wiley Online Library
Since the publication of Robert K. Merton's theory of cumulative advantage in science (Matthew Effect), several empirical studies have tried to measure its presence at the level of papers, individual researchers, institutions, or countries... Using an original method for controlling the intrinsic value of papers—identical duplicate papers published in different journals with different impact factors—this paper shows that the journal in which papers are published have a strong influence on their citation rates, as duplicate papers published in high-impact journals obtain, on average, twice as many citations as their identical counterparts published in journals with lower impact factors. The intrinsic value of a paper is thus not the only reason a given paper gets cited or not, there is a specific Matthew Effect attached to journals and this gives to papers published there an added value over and above their intrinsic quality.
paper  bibliometrics  distribution  impact-factor  publishing  research  journals  winner-take-all 
september 2010 by tsuomela

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