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Highlighting the excellence in civil engineering research in Portugal with the help of the h-index

Torgal, Fernando Pacheco
Fonte: Universidade do Minho Publicador: Universidade do Minho
Tipo: Conferência ou Objeto de Conferência
Publicado em 30/11/2011 ENG
Relevância na Pesquisa
65.74%
The Portuguese FCT-“Excellence Stimulus” prize is attributed to Investigators and Professors that published at least 100 papers in the Web of Science-WoS with 500 citations or else 50 papers published in the WoS with 250 citations and the supervision of 10 PhD Thesis. So far almost 70% of these prizes have been awarded to investigators and Professors working in the field of Chemistry. The present paper shows that the fact that this prize has never been award to an Investigator or to a Professor working in the field of Civil Engineering does not mean that excellence is lacking in this particular field. The highest h-index for Associate and Full Professors of Civil Engineering Departments of the six most productive Portuguese Universities are presented in this paper. Comparisons with world top Professors and researchers in the field of Civil Engineering are made.

Comparison of scientists of the Brazilian Academy of Sciences and of the National Academy of Sciences of the USA on the basis of the h-index

Mugnaini,R.; Packer,A.L.; Meneghini,R.
Fonte: Associação Brasileira de Divulgação Científica Publicador: Associação Brasileira de Divulgação Científica
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/04/2008 EN
Relevância na Pesquisa
55.87%
A new scientometric indicator, the h-index, has been recently proposed (Hirsch JE. Proc Natl Acad Sci 2005; 102: 16569-16572). The index avoids some shortcomings of the calculation of the total number of citations as a parameter to evaluate scientific performance. Although it has become known only recently, it has had widespread acceptance. A comparison of the average h-index of members of the Brazilian Academy of Sciences (BAS) and of the National Academy of Sciences of the USA (NAS-USA) was carried out for 10 different areas of science. Although, as expected, the comparison was unfavorable to the members of the BAS, the imbalance was distinct in different areas. Since these two academies represent, to a significant extent, the science of top quality produced in each country, the comparison allows the identification of the areas in Brazil that are closer to the international stakeholders of scientific excellence. The areas of Physics and Mathematics stand out in this context. The heterogeneity of the h-index in the different areas, estimated by the median dispersion of the index, is significantly higher in the BAS than in the NAS-USA. No elements have been collected in the present study to provide an explanation for this fact.

Bibliometric factors associated with h-index of Peruvian researchers with publications indexed on Web of Science and Scopus databases

Vílchez-Román,Carlos
Fonte: Pontifícia Universidade Católica de Campinas Publicador: Pontifícia Universidade Católica de Campinas
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2014 EN
Relevância na Pesquisa
65.9%
The objective of this article is: a) to identify Peruvian researchers with high, medium and low impact factor according to Web of Science and Scopus databases; b) to identify the bibliometric factor with the highest influence on h-index of Peruvian esearchers; c) to compare h-index between Web of Science and Scopus, at an individual and institutional level. Data were collected from Web of Science and Scopus (189 Peruvian researchers, 28 institutions on Web of Science and 33 on Scopus), between September 1823, 2013. Then, institutional registries were created and linear regression analysis with stepwise procedure was run to identify bibliometric factors with higher influence on the h-index of Peruvian researchers. Web of Science and Scopus showed interesting simmilarities in the h-index of Peruvian academic institutions. At individual level, documents indexed in citation database had the highest influence on the h-index. Regression model identified bibliometric factors with higher influence on the h-index of Peruvian researchers, however further large scale studies are needed to improve external validity.

q2-Index: Quantitative and qualitative evaluation based on the number and impact of papers in the hirsch core

Cabrerizo, F.J.; Alonso, S.; Herrera-Viedma, E.; Herrera, Francisco
Fonte: Universidade de Granada Publicador: Universidade de Granada
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
55.89%
Bibliometric studies at the micro level are increasingly requested by science managers and policy makers to support research decisions. Different measures and indices have been developed at this level of analysis. One type of indices, such as the h-index and g-index, describe the most productive core of the output of a researcher and inform about the number of papers in the core. Other indices, such as the a-index and m-index, depict the impact of the papers in the core. In this paper, we present a new index which relates two different dimensions in a researchers productive core: a quantitative one (number of papers) and a qualitative one (impact of papers). In such a way, we could obtain a more balanced and global view of the scientific production of researchers. This new index, called q2-index, is based on the geometric mean of h-index and the median number of citations received by papers in the h-core, i.e., the m-index, which allows us to combine the advantages of both kind of indices.

??ndice H de las revistas de Comunicaci??n seg??n Google Scholar Metrics (2007-2011)

Delgado L??pez-C??zar, Emilio; Repiso Caballero, Rafael
Fonte: Universidade de Granada Publicador: Universidade de Granada
Tipo: Outros
SPA
Relevância na Pesquisa
55.86%
Se presentan los ??ndices H de las revistas de Comunicaci??n calculados a partir de Google Scholar Metrics. Por medio de una b??squeda de las distintas variantes de t??tulo de las revistas se ordenan de acuerdo con su ??ndice H. Las b??squedas se realizaron e noviembre de 2012 y se midi?? el impacto de la revista a partir de los art??culos publicados entre 1997 y 2011.; We present the h index H Index Communication journals according to Google Scholar Metrics . The journals are ranked according to their index H and G. The searches were conducted in July 2011 and measured the impact of the journal from articles published between 2007 and 2011.

??ndice H de las revistas espa??olas de Ciencias Sociales y Jur??dicas seg??n Google Scholar (2002-2011)

Delgado L??pez-C??zar, Emilio; Marcos Cartagena, Diego; Jim??nez-Contreras, Evaristo; Ruiz-P??rez, Rafael
Fonte: EC3: Evaluaci??n de la Ciencia y la Comunicaci??n Cient??fica Publicador: EC3: Evaluaci??n de la Ciencia y la Comunicaci??n Cient??fica
Tipo: Relatório
SPA
Relevância na Pesquisa
55.79%
Se presentan rankings por disciplinas de las revistas cient??ficas espa??olas de Ciencias Sociales y Jur??dicas seg??n Google Scholar (GS) para el periodo 2002-2011. Se ordenan de acuerdo con el ??ndice h que es el indicador bibliom??trico adoptado por Google. Se pretende con este trabajo comprobar la amplitud en la cobertura que posee Google Scholar de las revistas cient??ficas espa??olas de Ciencias Sociales y Jur??dicas y comparar las diferencias arrojadas respecto al per??odo 2001-2010. Las b??squedas bibliogr??ficas se efectuaron en el mes de marzo de 2013. Se calcula el ??ndice h de 1038 revistas, de las que 251 son de Derecho, 157 de Educaci??n, 137 de Econom??a, 109 de Psicolog??a, 87 de Sociolog??a, 56 de Ciencia Pol??tica, 54 de Geograf??a, 46 son de Antropolog??a, 42 de Ciencias del Deporte, 39 de Urbanismo, 36 de Documentaci??n y 24 de Comunicaci??n.; Rankings are presented by disciplines of Spanish scientific journals of social sciences and law according to Google Scholar (GS) for the period 2002-2011. They are sorted according to the h-index which is the Bibliometric indicator adopted by Google. Intends this work check the breadth in coverage that has Google Scholar of Spanish scientific journals of social sciences and law and compare the differences over the period 2001-2010. Bibliographic searches were conducted in the month of March 2013. H-index is calculated from 1038 journals...

H Index of scientific Nursing journals according to Google Scholar Metrics (2008-2012)

Reina Leal, Liliana Marcela; Repiso Caballero, Rafael; Delgado L??pez-C??zar, Emilio
Fonte: EC3: Evaluaci??n de la Ciencia y de la Comunicaci??n Cient??fica; EC3metrics Publicador: EC3: Evaluaci??n de la Ciencia y de la Comunicaci??n Cient??fica; EC3metrics
Tipo: Relatório
ENG
Relevância na Pesquisa
65.84%
The aim of this report is to present a ranking of Nursing journals covered in Google Scholar Metrics (GSM), for the 2008-2012. This is an update of previous ranking, based on the h index for journals included by GSM (Reina Leal, Repiso & Delgado L??pez-C??zar, 2013). GSM doesn???t yet allow group and sort journals of a scientific discipline. Therefore, to the nursing discipline, can only be located 41 journals from the ten listings offered by GSM. However, in an attempt to overcome this limitation, we have used the diversity of search procedures allowed by GSM to identify the greatest number of scientific journals of Nursing with h index calculated by this bibliometric tool. Bibliographic searches were conducted between 3rd and 7th February 2014. The result is a ranking of 366 nursing journals sorted by the same h index, and mean as discriminating value. Journals are also grouped by quartiles.

H Index Communication Journals according to Google Scholar Metrics (2009-2013)

Repiso Caballero, Rafael; Delgado L??pez-C??zar, Emilio
Fonte: EC3: Evaluaci??n de la Ciencia y de la Comunicaci??n Cient??fica; EC3metrics Publicador: EC3: Evaluaci??n de la Ciencia y de la Comunicaci??n Cient??fica; EC3metrics
Tipo: Relatório
ENG
Relevância na Pesquisa
65.84%
The aim of this report is to present a ranking of Communication journals covered in Google Scholar Metrics (GSM) for the period 2008-2013. It corresponds to the H Index update made last year for the period 2008-2012 (Repiso & Delgado L??pez-C??zar 2013). Google Scholar Metrics does not currently allow to group and sort all journals belonging to a scientific discipline. Therefore, in an attempt to overcome this limitation, we have used the diversity of search procedures allowed by GSM to identify the greatest number of scientific journals of Communication with H Index calculated by this bibliometric tool. The result is a ranking of 434 communication journals sorted by the same H Index. Journals are also grouped by quartiles.

Proceedings Scholar Metrics: H Index of proceedings on Computer Science, Electrical & Electronic Engineering, and Communications according to Google Scholar Metrics (2009-2013)

Mart??n-Mart??n, Alberto; Ordu??a-Malea, Enrique; Ayll??n Mill??n, Juan Manuel; Delgado L??pez-C??zar, Emilio
Fonte: EC3: Evaluaci??n de la Ciencia y de la Comunicaci??n Cient??fica Publicador: EC3: Evaluaci??n de la Ciencia y de la Comunicaci??n Cient??fica
Tipo: Relatório
ENG
Relevância na Pesquisa
65.74%
This objective of this report is to present a list of proceedings (conferences, workshops, symposia, meetings) in the areas of Computer Science, Electrical & Electronic Engineering, and Communications covered by Google Scholar Metrics and ranked according to their h-index. Google Scholar Metrics only displays publications that have published at least 100 papers and have received at least one citation in the last five years (2009-2013). The searches were conducted between the 15th and 22nd of December, 2014. A total of 1208 proceedings have been identified.

The meaning of the h-index

Hirsch, J. E.; Buela-Casal, Gualberto
Fonte: Asociaci??n Espa??ola de Psicolog??a Conductual Publicador: Asociaci??n Espa??ola de Psicolog??a Conductual
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
65.87%
The questions in this article were formulated by G. Buela-Casal, the answers were given by J.E. Hirsch.; The h-index originates from the assumption that the number of citations received by a scientist is a better indicator of the relevance of his or her work than the number of papers he or she publishes or the journals where they are published. It takes into account the number of papers published and the citations to those papers in a balanced way, and thus is useful to make comparisons between scientists. The present paper addresses the most frequent questions about the h-index. Specifically, it explains its origin, its advantages compared to other indices, the factors that can influence it (e.g. age, field of knowledge, topic of research and language of publication), its variants, and the injustices it may lead to. In short, this paper provides a clear exposition of the hoped-for role of the h-index in the evaluation of scientists: that it serves as a useful complement to other indicators that are more subjective, and that it contributes to the progress of science by aiding decision-making on allocation of research resources in a more effective way, and on rewarding researchers who contribute to scientific progress in a more fair way.; El ??ndice h surge del presupuesto de que el n??mero de citas que recibe un cient??fico constituye un mejor indicador de la relevancia de su trabajo que el n??mero de art??culos que publica o en qu?? revistas lo hace. Se trata de un indicador que...

Mapping the scientific research on life cycle assessment: a bibliometric analysis

Hou, Q.; Mao, G.; Zhao, L.; Du, H.; Zuo, J.
Fonte: Springer Publicador: Springer
Tipo: Artigo de Revista Científica
Publicado em //2015 EN
Relevância na Pesquisa
55.82%
PURPOSE A bibliometric analysis of life cycle assessment (LCA)-related research literature is reported in this study. Based on databases of Science Citation Index (SCI), Social Science Citation Index (SSCI), Conference Proceedings Citation Index—Science (CPCI-S), and Conference Proceedings Citation Index—Social Science & Humanities (CPCI-SSH), this study aims to evaluate the research trends of LCA-related research literature from 1998 to 2013 by using bibliometric techniques. METHODS The documents were analyzed according to their type, language(s), subject(s), journal(s), citation analysis of articles, authors’ address information, and keyword distribution, etc. H-index and impact factor (IF) were applied to characterize the LCA publications. Furthermore, co-word analysis and social network analysis (SNA) were employed to evaluate the interactions in this research field. The findings showed that the pace of publishing in this field increased exponentially over past 16 years. RESULTS AND DISCUSSION A total of 6616 records were obtained from the four databases. Journal articles are the most frequently used document type representing 74.33 % (4918) of the records, and English is the dominant language with 5914 records (97.53 %). The most common subject category is environmental sciences...

Three-feature model to reproduce the topology of citation networks and the effects from authors' visibility on their h-index

Amancio, Diego Raphael; Oliveira Junior, Osvaldo Novais de; Costa, Luciano da Fontoura
Fonte: ELSEVIER SCIENCE BV; AMSTERDAM Publicador: ELSEVIER SCIENCE BV; AMSTERDAM
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
65.74%
Various factors are believed to govern the selection of references in citation networks, but a precise, quantitative determination of their importance has remained elusive. In this paper, we show that three factors can account for the referencing pattern of citation networks for two topics, namely "graphenes" and "complex networks", thus allowing one to reproduce the topological features of the networks built with papers being the nodes and the edges established by citations. The most relevant factor was content similarity, while the other two - in-degree (i.e. citation counts) and age of publication - had varying importance depending on the topic studied. This dependence indicates that additional factors could play a role. Indeed, by intuition one should expect the reputation (or visibility) of authors and/or institutions to affect the referencing pattern, and this is only indirectly considered via the in-degree that should correlate with such reputation. Because information on reputation is not readily available, we simulated its effect on artificial citation networks considering two communities with distinct fitness (visibility) parameters. One community was assumed to have twice the fitness value of the other, which amounts to a double probability for a paper being cited. While the h-index for authors in the community with larger fitness evolved with time with slightly higher values than for the control network (no fitness considered)...

H-index in the Brazilian Academy of Sciences: comments and concerns

Kellner,Alexander W.A.; Ponciano,Luiza C.M.O.
Fonte: Academia Brasileira de Ciências Publicador: Academia Brasileira de Ciências
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2008 EN
Relevância na Pesquisa
65.9%
Bibliometric parameters have been used in order to evaluate a scientist's performance. The h-index has been gradually accepted as the most adequate parameter for this purpose. To have an idea of this index among Brazilian scientists, we performed an analysis of this parameter for the full members of the Brazilian Academy of Sciences (BAS). The h-index of 402 members listed in 10 distinct categories by the BAS was determined, cross-checked with the curriculum vitae of each of them listed at the Plataforma Lattes database (CVL) and compared with each other. Despite the large production, mostly in journals without impact factor, the h-indexes among the BAS members are comparatively low and show a large variation in all of the 10 categories, particularly in Biomedical and Physical sciences. The highest average of h-index values was found in Biomedical, Health and Chemical sciences; the lowest values were found in Human sciences where this index is meaningless. Several problems due to the trend that new and "fresh" publications need be constantly produced (the "bakery-effect") are discussed. This study points to the need of developing countries such as Brazil to invest in national scientific journals in order to make them gradually part of the mainstream journals. This would have a positive effect on bibliometric parameters of Brazilian researchers...

Hirsch's index: a case study conducted at the Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo

Torro-Alves,N.; Herculano,R.D.; Terçariol,C.A.S.; Kinouchi Filho,O.; Graeff,C.F.O.
Fonte: Associação Brasileira de Divulgação Científica Publicador: Associação Brasileira de Divulgação Científica
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/11/2007 EN
Relevância na Pesquisa
55.78%
An analysis of scientific bibliographic productivity using the Hirsch h-index, information from the Institute of Scientific Information database and the Curriculum Lattes (CNPq, Brazil) was performed at the Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (FFCLRP-USP) that has four departments in natural, biological and social sciences. Bibliometric evaluations of undergraduate programs showed a better performance of the departments of Chemistry (P < 0.001) and Biology (P < 0.001) when compared to the departments of Physics and Mathematics and Psychology and Education. We also analyzed the scientific output of the six graduate programs of FFCLRP: Psychology, Psychobiology, Chemistry, Physics Applied to Medicine and Biology, Comparative Biology, and Entomology. The graduate program in Psychology presented a lower h-index (P < 0.001) and had fewer papers indexed by the ISI web of science (P < 0.001) when compared to the other graduate programs. The poorer performance of the Psychology program may be associated with the limited coverage by the Thompson Institute of Scientific Information database.

Bounds and Inequalities Relating h-Index, g-Index, e-Index and Generalized Impact Factor

Abbas, Ash Mohammad
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 25/03/2011
Relevância na Pesquisa
55.88%
Finding relationships among different indices such as h-index, g-index, e-index, and generalized impact factor is a challenging task. In this paper, we describe some bounds and inequalities relating h-index, g-index, e-index, and generalized impact factor. We derive the bounds and inequalities relating these indexing parameters from their basic definitions and without assuming any continuous model to be followed by any of them.; Comment: 17 pages, 6 figures, 5 tables

Does it Matter Which Citation Tool is Used to Compare the h-index of a Group of Highly Cited Researchers?

Ebrahim, Nader Ale; Farhadi, Hadi; Salehi, Hadi; Yunus, Melor Md; Chadegani, Arezoo Aghaei; Farhadi, Maryam; Fooladi, Masood
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 04/06/2013
Relevância na Pesquisa
55.9%
h-index retrieved by citation indexes (Scopus, Google scholar, and Web of Science) is used to measure the scientific performance and the research impact studies based on the number of publications and citations of a scientist. It also is easily available and may be used for performance measures of scientists, and for recruitment decisions. The aim of this study is to investigate the difference between the outputs and results from these three citation databases namely Scopus, Google Scholar, and Web of Science based upon the h-index of a group of highly cited researchers (Nobel Prize winner scientist). The purposive sampling method was adopted to collect the required data. The results showed that there is a significant difference in the h-index between three citation indexes of Scopus, Google scholar, and Web of Science; the Google scholar h-index was more than the h-index in two other databases. It was also concluded that there is a significant positive relationship between h-indices based on Google scholar and Scopus. The citation indexes of Scopus, Google scholar, and Web of Science may be useful for evaluating h-index of scientists but they have some limitations as well.; Comment: 5 pages, 5 figures and 2 tables

On Google Scholar H-Index Manipulation by Merging Articles

van Bevern, René; Komusiewicz, Christian; Niedermeier, Rolf; Sorge, Manuel; Walsh, Toby
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 17/12/2014
Relevância na Pesquisa
55.85%
Google Scholar allows merging multiple article versions into one. This merging affects the H-index computed by Google Scholar. We analyze the parameterized complexity of maximizing the H-index using article merges. Herein, multiple possible measures for computing the citation count of a merged article are considered. Among others, for the measure used by Google Scholar, we give an algorithm that maximizes the H-index in linear time if there is only a constant number of versions of the same article. In contrast, if we are allowed to merge arbitrary articles, then already increasing the H-index by one is NP-hard.

Will This Paper Increase Your h-index? Scientific Impact Prediction

Dong, Yuxiao; Johnson, Reid A.; Chawla, Nitesh V.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 15/12/2014
Relevância na Pesquisa
55.9%
Scientific impact plays a central role in the evaluation of the output of scholars, departments, and institutions. A widely used measure of scientific impact is citations, with a growing body of literature focused on predicting the number of citations obtained by any given publication. The effectiveness of such predictions, however, is fundamentally limited by the power-law distribution of citations, whereby publications with few citations are extremely common and publications with many citations are relatively rare. Given this limitation, in this work we instead address a related question asked by many academic researchers in the course of writing a paper, namely: "Will this paper increase my h-index?" Using a real academic dataset with over 1.7 million authors, 2 million papers, and 8 million citation relationships from the premier online academic service ArnetMiner, we formalize a novel scientific impact prediction problem to examine several factors that can drive a paper to increase the primary author's h-index. We find that the researcher's authority on the publication topic and the venue in which the paper is published are crucial factors to the increase of the primary author's h-index, while the topic popularity and the co-authors' h-indices are of surprisingly little relevance. By leveraging relevant factors...

The H-index Paradox: Your Coauthors Have a Higher H-index than You Do

Benevenuto, Fabrício; Laender, Alberto H. F.; Alves, Bruno L.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
55.9%
One interesting phenomenon that emerges from the typical structure of social networks is the friendship paradox. It states that your friends have on average more friends than you do. Recent efforts have explored variations of it, with numerous implications for the dynamics of social networks. However, the friendship paradox and its variations consider only the topological structure of the networks and neglect many other characteristics that are correlated with node degree. In this article, we take the case of scientific collaborations to investigate whether a similar paradox also arises in terms of a researcher's scientific productivity as measured by her H-index. The H-index is a widely used metric in academia to capture both the quality and the quantity of a researcher's scientific output. It is likely that a researcher may use her coauthors' H-indexes as a way to infer whether her own H-index is adequate in her research area. Nevertheless, in this article, we show that the average H-index of a researcher's coauthors is usually higher than her own H-index. We present empirical evidence of this paradox and discuss some of its potential consequences.

The h index and career assessment by numbers

Kelly, Clint; Jennions, Michael
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
55.78%
Growing demand to quantify the research output from public funding has tempted funding agencies, promotion committees and employers to treat numerical indices of research output more seriously. So many assessment exercises are now conducted worldwide that traditional peer assessment is threatened. Here, we describe a new citation-based index (Hirsh's h index) and examine several factors that might influence it for ecologists and evolutionary biologists, such as gender, country of residence, subdiscipline and total publication output. We suggest that h is not obviously superior to other indices that rely on citations and publication counts to assess research performance.