Personal Research Database

Full Text: 2008\Scientometrics75, 439.pdf

Abstract: During the last decade, we have witnessed a sustained growth of South Korea’s research output in terms of the world share of publications in the Science Citation Index database. However, Korea’s citation performance is not yet as competitive as publication performance. In this study, the authors examine the intellectual structure of Korean S&T field based on social network analysis of journal-journal citation data using the ten Korean SCI journals as seed journals. The results reveal that Korean SCI journals function more like publication places, neither research channels nor information sources among national scientists. Thus, these journals may provide Korean scholars with access to international scientific communities by facilitating the respective entry barriers. However, there are no citation relations based on their Korean background. Furthermore, we intend to draw some policy implications which may be helpful to increase Korea’s research potential.

Keywords: Access, Analysis, China, Citation, Database, Function, Growth, Information, Intellectual Structure, International, Journals, Korea, Network, Network Analysis, Policy, Potential, Publication, Publications, Relations, Research, SCI, Science Citation Index, Social Network Analysis, Structure, Terms

? Lee, Y.G. (2008), Patent licensability and life: A study of US patents registered by South Korean public research institutes. Scientometrics, 75 (3), 463-471.

Full Text: 2008\Scientometrics75, 463.pdf

Abstract: The quality and value of a patent can be represented by several proxies, such as how often the patent is cited in other patents, whether it is licensed, and the age of the patent. The paper uses a binary choice model to investigate factors affecting patent licensing, and it uses double-bounded tobit and duration models to investigate factors affecting patent life. Explanatory variables and dependent variables are extracted from U.S. patent information and related data. Findings suggest research collaboration has a positive effect on both patent licensing and patent life. Other characteristics such as invention size, namely, the scope of the invention measured by number of claims, and organizational technological cumulativeness, measured by self-citation counts, also affect patent life.

Keywords: Collaboration, Information, Licensing, Life, Model, Models, Patent, Patents, Quality, Research, Research Collaboration, Self-Citation, Size, US

? Curras, E. and Barreiro, E.W. (2008), Integration in Europe of human genetics results obtained by Spaniards in the USA: A historical perspective. Scientometrics, 75 (3), 473-493.

Full Text: 2008\Scientometrics75, 473.pdf

Abstract: The mobility of Spanish biochemists from Europe to the United States over the past 80 years (1927-2006) is approached from a historical perspective. The academic community on human genetics has awarded this emigrated Spanish community with the Nobel prize as well as other awards from European foundations. The vertical/horizontal integration methodology offers an opportunity to understand the extremely satisfactory history of a small European community overseas. To piece the puzzle together, continuous reference is made to the theory of systems. To test and use this holistic history, the circulation of the knowledge produced on cancer has been studied as intrinsically related to time by using the algorithmic historiography. Francisco Duran Reynals and Severe, Ochoa have been selected as examples of the vertical integration. The former one because he was the director of an important collaborator, his own wife, the latter, as the founder of a Spanish specific research school in America based in his own work. The simultaneous stay of several young Spanish scientists at the Columbia University (Mariano Barbacid, Manuel Perucho and Angel Pellicer) serves to design the horizontal integration, to create a holon hierarchy to reflect the criteria of subsidiarity and acceptability, and to focus on the Spanish discoveries and contributions to cancer research. The transatlantic flows of knowledge generated by the Spanish elite of biochemists in the USA from 1927 on define a network of geographical displacements. As a result, the social structure thus visualizes the identity of the international mobility of scientists who leave for Europe/USA, and their return to Spain. A model of the brain drain of professionals to the USA, that retain 80% of the Spanish cancer researchers, is developed.

Keywords: Biochemistry, Biology, Brain, Brain-Drain, Cancer, Cancer Research, Community, Criteria, Europe, Genes, Genetics, History, Human, Information, Integration, International, Knowledge, Methodology, Mobility, Model, Network, Origin, Research, Small, Spain, Structure, Theory, United States, USA, Work

? Bettencourt, L.M.A., Kaiser, D.I., Kaur, J., Castillo-Chavez, C. and Wojick, D.E. (2008), Population modeling of the emergence and development of scientific fields. Scientometrics, 75 (3), 495-518.

Full Text: 2008\Scientometrics75, 495.pdf

Abstract: We analyze the temporal evolution of emerging fields within several scientific disciplines in terms of numbers of authors and publications. From bibliographic searches we construct databases of authors, papers, and their dates of publication. We show that the temporal development of each field, while different in detail, is well described by population contagion models, suitably adapted from epidemiology to reflect the dynamics of scientific interaction. Dynamical parameters are estimated and discussed to reflect fundamental characteristics of the field, such as time of apprenticeship and recruitment rate. We also show that fields tire characterized by simple scaling laws relating numbers of new publications to new authors, with exponents that reflect increasing or decreasing returns in scientific productivity.

Keywords: Computers, Cosmology, Development, Dynamics, Epidemiology, Evolution, Flatness, Growth, Horizon, Ideas, Inflationary Universe, Interaction, Laws, Mathematical Approach, Modeling, Models, Papers, Population, Publication, Publications, Scaling, Spread

? He, Y. and Guan, J.C. (2008), Contribution of Chinese publications in computer science: A case study on LNCS. Scientometrics, 75 (3), 519-534.

Full Text: 2008\Scientometrics75, 519.pdf

Abstract: Conference proceedings are one of the key communication channels in computer science. This paper aims to analyze the Chinese outputs in the context of conference papers in computer science through an exploration of the conference proceedings series book - Lecture Notes in Computer Science (LNCS) in the period of 1997-2005. Results indicate that: 1. The number of Chinese papers in LNCS keeps growing in the studied period, the share of Chinese papers in LNCS in recent years is much higher than that of Chinese SCI papers in the world, In sharp contrast with remarkable growth of the share of Chinese papers in LNCS, the share of SCI articles in top journals of computer science published by the scientists of mainland China is negligible during the same period. 2. Chinese researchers are more likely to collaborate with domestic fellows, 3. In spite of the increasing amounts of Chinese papers in LNCS, they receive only a few citations, 4. The articles are strikingly more cited by authors themselves and international authors’ citations are more than Chinese authors’ non-self-citations in the first three years after publication, 5. Based on the new indicator Impact Index (II) the authors proposed, the relative impact of Chinese articles in LNCS is increasing although the average impact of Chinese papers in LNCS is obviously less than that of the publications in LNCS in each year during the studied period.

Keywords: Case Study, China, Chinese, Citation Analysis, Citations, Co-Citation, Communication, First, Growth, Indicator, Information, International, Journals, Knowledge Production, Papers, Publication, Publications, Research Performance, SCI, Science, Structural Aspects, Word Analysis

? Kim, H. and Park, Y. (2008), The impact of R&D collaboration on innovative performance in Korea: A Bayesian network approach. Scientometrics, 75 (3), 535-554.

Full Text: 2008\Scientometrics75, 535.pdf

Abstract: It is well known from previous research activities that R&D collaboration among economic actors for knowledge production is very important. An accompanying analysis of the impact of R&D collaboration on innovative performance has to be conducted for transferring knowledge to the globalized knowledge-based economy. When we first investigated previous research concerning R&D collaboration, we found some limitations in the analysis methodology. In order to overcome these limitations in previous research, we applied a Bayesian network for analyzing the impact of R&D collaboration in Korean firms on their innovative performance.

Keywords: Analysis, Biotechnology, Collaboration, Expert-Systems, Firms, First, Graphical Structures, Industry, Interfirm Cooperation, Inventors, Knowledge, Korea, Methodology, National Systems, Network, Probabilities, Research, Taiwan

? Mattsson, P., Laget, P., Nilsson, A. and Sundberg, C.J. (2008), Intra-EU vs. extra-EU scientific co-publication patterns in EU. Scientometrics, 75 (3), 555-574.

Full Text: 2008\Scientometrics75, 555.pdf

Abstract: The increase of co-authored papers is a recognized fact. At the same time the factors influencing this change is not well known. This article aims at studying the patterns of EU science co-authorships. We analyzed articles published in 18 EU countries and their intra-EU (within EU) and extra-EU (with partners outside EU) co-publication pattern in five scientific fields. The results point to a Europeanisation of shared co-authorship rather than an internationalization outside Europe. Smaller countries co-authored more with other EU countries than bigger countries while the co-authorship rate with extra-EU partners was not dependent of the country’s size. The co-authorship patterns were also found to depend on the scientific field. Engineering and Computing & Technology was the field with the highest level of national publications and Physical, Chemical & Earth Sciences the field with the highest level of both intra-EU and extra-EU collaborations. These results support the view that a single market for research is developing within the EU with a seamless extension of national systems into other Member States ones.

Keywords: Co-Authorship, Coauthorship, Cooperation, EU, Europe, Impact, Internationalization, Market, Multiple Authorship, Papers, Publications, Research, Research Collaboration, Science, Size, Universities

? Rousseau, R. and Zhang, L. (2008), Betweenness centrality and Q-measures in directed valued networks. Scientometrics, 75 (3), 575-590.

Full Text: 2008\Scientometrics75, 575.pdf

Abstract: Q-measures express the bridging function of nodes in a network subdivided into two groups. An approach to Q-measures in the context of weighted or valued directed networks is proposed. This new approach uses flow centrality as the main concept. Simple examples illustrate the definition.

Keywords: Function, Network

? Bar-Ilan, J. (2008), The h-index of h-index and of other informetric topics. Scientometrics, 75 (3), 591-605.

Full Text: 2008\Scientometrics75, 591.pdf

Abstract: In this paper we examine the applicability of the concept of h-index to topics, where a topic has index h, if there are h publications that received at least h citations and the rest of the publications on the topic received at most h citations. We discuss methodological issues related to the computation of h-index of topics (denoted h-b index by BANKS [2006]). Data collection for computing the h-b index is much more complex than computing the index for authors, research groups and/or journals, and has several limitations. We demonstrate the methods on a number of informetric topics, among them the h-index.

Keywords: Banks, Citation Counts, Citations, Collection, Google-Scholar, h Index, h-Index, Hirsch-Index, Impact, Index h, Journals, Methods, Publications, Ranking, Research, Science, Scientists, Scopus, Web

? Janssens, F., Glänzel, W. and De Moor, B. (2008), A hybrid mapping of information science. Scientometrics, 75 (3), 607-631.

Full Text: 2008\Scientometrics75, 607.pdf

Abstract: Previous studies have shown that hybrid clustering methods that incorporate textual content and bibliometric information can outperform clustering methods that use only one of these components. In this paper we apply a hybrid clustering method based on Fisher’s inverse chi-square to integrate full-text with citations and to provide a mapping of the field of information science. We quantitatively and qualitatively asses the added value of such an integrated analysis and we investigate whether the clustering outcome is a better representation of the field by comparing with a text-only clustering and with another hybrid method based on linear combination of distance matrices. Our data set consists of almost 1000 articles and notes published in the period 2002-2004 in 5 representative journals. The optimal number of clusters for the field is 5, determined by using a combination of distance-based and stability-based methods. Term networks present the cognitive structure of the field and are complemented by the most representative publications. Three large traditional sub-disciplines, particularly, information retrieval, bibliometrics/scientometrics, and more social aspects, and two smaller clusters about patent analysis and webometrics, can be distinguished.

Keywords: Analysis, Bibliometric, Chi-Square, Citations, Clustering, Data, Field, Information, Information Retrieval, Information Science, Journals, Mapping, Methods, Networks, Outcome, Patent, Patent Analysis, Publications, Representation, Science, Scientific Papers, Social, Structure, Value, Visualization, Web, Webometrics

? Krampen, G. (2008), The evaluation of university departments and their scientists: Some general considerations with reference to exemplary bibliometric publication and citation analyses for a Department of Psychology. Scientometrics, 76 (1), 3-21.

Full Text: 2008\Scientometrics76, 3.pdf

Abstract: In reference to an exemplary bibliometric publication and citation analysis for a University Department of Psychology, some general conceptual and methodological considerations on the evaluation of university departments and their scientists are presented. Data refer to publication and citation-by-others analyses (PsycINFO, PSYNDEX, SSCI, and SCI) for 36 professorial and non-professorial scientists from the tenure staff of the department under study, as well as confidential interviews on self-and colleagues-perceptions with seven of the sample under study. The results point at (1) skewed (Pareto-) distributions of all bibliometric variables demanding nonparametrical statistical analyses, (2) three personally identical outliers which must be excluded from some statistical analyses, (3) rather low rank-order correlations of publication and citation frequencies having approximately 15% common variance, (4) only weak interdependences of bibliometric variables with age, occupational experience, gender, academic status, and engagement in basic versus applied research, (5) the empirical appropriateness and utility of a normative typological model for the evaluation of scientists’ research productivity and impact, which is based on cross-classifications with reference to the number of publications and the frequency of citations by other authors, and (6) low interrater reliabilities and validity of ad hoc evaluations within the departments’ staff. Conclusions refer to the utility of bibliometric data for external peer reviewing and for feedback within scientific departments, in order to make colleague-perceptions more reliable and valid.

Keywords: Age, Analyses, Analysis, Bibliometric, Citation, Citation Analysis, Citations, Confidential, Correlations, Data, Engagement, Evaluation, Experience, Gender, General, Impact, Interviews, Journals, Model, Occupational, Outliers, Pareto, Productivity, Psycinfo, Publication, Publications, Research, Research Productivity, SCI, SSCI, Stands Today, Statistical Analyses, Tenure, University, Utility, Validity, Variance

? Eto, H. (2008), Scientometric definition of science: In what respect is the humanities more scientific than mathematical and social sciences? Scientometrics, 76 (1), 23-42.

Full Text: 2008\Scientometrics76, 23.pdf

Abstract: “What is science” is not only intellectually interesting but also politically crucial in the proper allocation of budget. As science does not define itself and only philosophy defines everything including science, this paper first sketches the philosophical view of science. Then, hypotheses are presented as to what definition is actually given for science by scientific circles themselves. The hypotheses are tested in a scientometric way by observing the trend in the magazine Science. Unexpected results are obtained. The actual trend in Science does not reflect what has long been considered about science. Specifically, chemistry is at the top in the number of papers, far above physics. More papers are in historical sciences (part of the humanities) than in mathematics, computer science and social science. It is discussed in what respect chemistry is the most scientific, and the humanities is more scientific than the abovementioned three scientific fields. It is interpreted that, out of the two aspects in Galilei’s view of science (metodo compositivo and metodo risolutivo.), the latter (empirical solution of problems by using technical instruments) dominates the former (systematic theory using mathematics) in Science.

Keywords: Articles, Authorship, Budget, Chemistry, Citation Patterns, First, Humanities, Journals, Operational-Research, Papers, Philosophy, Physics, Science, Sciences, Scientometric, Social Sciences, Solution, Technology, Theory

? Kostoff, R.N., Barth, R.B. and Lau, C.G.Y. (2008), Relation of seminal nanotechnology document production to total nanotechnology document production - South Korea. Scientometrics, 76 (1), 43-67.

Full Text: 2008\Scientometrics76, 43.pdf

Abstract: This study evaluates trends in quality of nanotechnology and nanoscience papers produced by South Korean authors. The metric used to gauge quality is ratio of highly cited nanotechnology papers to total nanotechnology papers produced in sequential time frames. In the first part of this paper, citations (and publications) for nanotechnology documents published by major producing nations and major producing global institutions in four uneven time frames are examined. All nanotechnology documents in the Science Citation Index [SCI, 2006] for 1998, 1999-2000, 2001-2002, 2003 were retrieved and analyzed in March 2007. In the second part of this paper, all the nanotechnology documents produced by South Korean institutions were retrieved and examined. All nanotechnology documents produced in South Korea (each document had at least one author with a South Korea address) in each of the above time frames were retrieved and analyzed. The South Korean institutions were extracted, and their fraction of total highly cited documents was compared to their fraction of total published documents. Non-Korean institutions that co-authored papers were included as well, to offer some perspective on the value of collaboration.

Keywords: Citations, Collaboration, First, Institutions, Korea, Nanoscience, Nanotechnology, Nations, Papers, Publications, Quality, Science Citation Index, Trends

? Sotudeh, H. and Horri, A. (2008), Great expectations: The role of Open Access in improving countries’ recognition. Scientometrics, 76 (1), 69-93.

Full Text: 2008\Scientometrics76, 69.pdf

Abstract: Open Access movement has been proven to be capable to enhance the recognition of scientific outputs by improving their visibility. However, it is not clear how different entities benefit from the Open Access advantage, because, the recognition process is dominated by some psychological or realistic biases, resulting in an unequal distribution of citations between different entities. The biases may be exacerbated in Open Access world, e.g. due to the scientists uncertainty about the quality of Open Access materials, or quantitatively or qualitatively unequal presence of countries. Consequently, although, Open Access is able to achieve their potential citations, it is not unlikely that it increases the inequalities, depriving the already “have-nots”. Trying to illuminate how countries are benefiting from Open Access advantage, this study compares citation performances of the world’s countries in two journal sets, i.e. Open Access and non Open Access journals. The results of the analyses conducted at subject field level show that overall recognition gap between developed and less-developed blocks is widened by publishing in Open Access journals. The verification of individual countries’ performances confirms the finding by revealing that open-access-advantaged nations are mainly consisted of developed ones. However, some open-access-advantaged instances are from the less-developed block, which may promisingly suggest early heralds of Open Access potentialities to achieve the recognition of “lost sciences”, leading to relative reparation of the gap in future.

Keywords: Advantage, Articles, Citation, Citations, Impact, Journal, Journals, Nations, Performance, Potential, Publishing, Quality, Science, System, Uncertainty

? Kao, C., Lin, H.W., Chung, S.L., Tsai, W.C., Chiou, J.S., Chen, Y.L., Chen, L.H., Fang, S.C. and Paoh, H.L. (2008), Ranking taiwanese management journals: A case study. Scientometrics, 76 (1), 95-115.

Full Text: 2008\Scientometrics76, 95.pdf

Abstract: To improve the quality of journals in Taiwan, the National Science Council (NSC) of the Republic of China evaluates journals in the fields of humanities and social sciences periodically. This paper describes the evaluation of 46 management journals conducted by the authors, as authorized by the NSC. Both a subjective approach, with judgments solicited from 345 experts, and an objective approach, with data collected on four indicators: journal cross citation, dissertation citation, authors’ scholastic reputation, and author diversity, were used to make a comprehensive evaluation. Performance in the four indicators were aggregated using weights which were most favourable to all journals, in a compromise sense, to produce the composite indices. The subjective evaluation reflects the general image, or reputation, of journals while the objective evaluation discloses blind spots which have been overlooked by experts. The results show that using either approach alone would have produced results which are misleading, which suggests that both approaches should be used. All of the editors of the journals being evaluated agreed that the evaluation was appropriate and the results are reasonable.

Keywords: Case Study, China, Citation, Composite, Evaluation, Frequency, Humanities, Impact, Indicators, Journal, Journals, Management, Quality, Sciences, Social Sciences, Weights

? Egghe, L. (2008), The mathematical relation between the impact factor and the uncitedness factor. Scientometrics, 76 (1), 117-123.

Full Text: 2008\Scientometrics76, 117.pdf

Abstract: In a general framework, given a set of articles and their received citations (time periods of publication or citation are not important here) one can define the impact factor (IF) as the total number of received citations divided by the total number of publications (articles). The uncitedness factor (UF) is defined as the fraction of the articles that received no citations. It is intuitively clear that IF should be a decreasing function of UF. This is confirmed by the results in [VAN LEEUWEN & MOED, 2005] but all the given examples show a typical shape, seldom seen in informetrics: a horizontal S-shape (first convex then concave). Adopting a simple model for the publication-citation relation, we prove this horizontal S-shape in this paper, showing that such a general functional relationship can be generally explained.

Keywords: Citation, Citations, First, Framework, Function, Impact Factor, Informetrics, Model, Publication, Publications

? Moghaddam, G.G. and Moballeghi, M. (2008), How do we measure the use of scientific journals? A note on research methodologies. Scientometrics,