Predicting author h-index using characteristics of the co-author network

McCarty, Christopher; Jawitz, James W.; Hopkins, Allison L.; Goldman, Alex

doi:10.1007/s11192-012-0933-0

Cited by 61 publications

(37 citation statements)

References 74 publications

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“…Similar findings argued that sparse networks (with high betweenness centrality and average path length) exhibit higher levels of citations compared with dense networks20. However, contrastingly, a study conducted on a randomly selected sample of 238 authors from the Web of Science, indicated that, within personal coauthorship networks, betweenness centrality does not have any impact on the Hirsch-index score19. Furthermore, it was showed19 that personal networks’ size (number of alters) significantly accounts for 59% of the h-index scores of the egos.…”

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confidence: 80%

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Homophily in coauthorship networks of East European sociologists

Hâncean

Perc

2016

Sci Rep

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We study to what degree and how homophily and network properties affect individual citation counts of researchers in the sociology departments of three East European countries, namely Poland, Romania, and Slovenia. We built first-order personal coauthorship networks out of the Web of Science publication records. Each sociologist is assigned as a focal node or ego, while her coauthors are alters. We analyze the data using structural measurements methods, hierarchical regression models, and we make visualizations based on the clustered graph technique. For all three populations, our results indicate that the mean score of the citations of alters substantially predicts the citation counts of egos. In particular, citation similarity increases the chances for coauthorship ties. Evidence for the impact of network properties on the citation levels of egos is mixed. For Poland, normalized ego-betweenness shows a negative effect on citation counts, while network density displays a positive one. For Romania and Slovenia, network characteristics have only a minor impact. Even if the visual summarization of the personal networks uncovers a wide palette of coauthorship patterns, homophily appears to be pervasive. These results are relevant for domestic policy makers who aim to improve the aggregated research performance in East European countries.

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confidence: 80%

“…Commonly, at an individual level of analysis, coauthorship data have been used as inputs to build up coauthorship (collaboration) networks, in the form of either whole-networks71013141516, or in the form of personal networks (ego-neworks)17181920.…”

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confidence: 99%

Homophily in coauthorship networks of East European sociologists

Hâncean

Perc

2016

Sci Rep

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“…The indicators namely as total numbers of publication, [52,53] citation analysis, [54,55] h-index, [56] g-index, [57] years of publication, [49][50][51][52][53][54][55][56][57][58] collaboration between countries [59] and others. Difference indicators can give difference outline and indication towards research.…”

Section: Indicators In Bibliometric Analysismentioning

confidence: 99%

Publication Productivity Pattern of Malaysian Researchers in Scopus from 1995 to 2015

Bakri¹,

Azura²,

Nadzar³

et al. 2017

JSCIRES

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Aim: This study is to understand and analyze the publication productivity as one of the important scientometric indicators of HEI's performance in Malaysia for duration time of 20 years. Method: This study conducted the scientometric analysis of the research productivity performance of Malaysia's researchers from June 1995 to June 2015 using Scopus database. All type' field in the search box where chosen and the chosen keyword is 'Malaysia'. All related papers are extracted, retrieved and compiled into the personal database in Microsoft Excel. Pre-processing task such as data cleaning were done and with total of 290 093 publications records was identified. These publications records included all type of documents such as articles, conference, review paper, book chapter and books. Result: The remarkably numbers of publication growth from 1995 to 2015. There are huge development of research happens in these 20 years in Malaysia with only 1,610 publication in 1995 increased to 180,797 publication in 2015. Subject area of pure science dominated the percentage of publication such as engineering with 15% from total and the small percentage with total of 5% comes from pure science as well which are physic and astronomy. Conclusion: The increase in publication productivity is a sign of good R&D that is actively happened in this country. This has a positive impact towards Malaysia as well as the related institutions in order to introduce and stamp their name to the world. Therefore, the numbers of collaboration with others countries especially with European countries and America is worth to emphasize. Nonetheless, we understand that there are numbers of factors that associated in producing the publication that can be barriers to the authors such as personal factors, environment factors and behavioral factors.

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“…Ñëåäóåò ó÷èòûâàòü, ÷òî ÷èñëî öèòèðîâàíèé è äèíàìèêà èçìåíåíèÿ ÷èñëà öèòèðî-âàíèé çàâèñÿò îò ÷èñëà ñîàâòîðîâ ïóáëèêàöèè, à òàêaeå îò èõ èçâåñòíîñòè â íàó÷íûõ êðóãàõ [22]. Èíòóèòèâíî ïîíÿòíî, ÷òî øàíñîâ ïðèâëå÷ü ê ñåáå âíèìàíèå ïðè ïðî÷èõ ðàâíûõ óñëîâèÿõ áîëüøå ó òîé ñòàòüè, ñðåäè ñîàâòîðîâ êîòîðîé èìååòñÿ èçâåñòíûé ó÷åíûé.…”

Section: çàêëþ÷åíèåunclassified

Temporal Dynamics of Hirsch Index

Tarasevich¹,

Shinyaeva²

2016

Bulletin of the SUSU. MMP

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Ïðîâåäåí àíàëèç èíôîðìàöèè èç áàçû äàííûõ Scopus î âðåìåíí îé çàâèñèìîñòè èíäåêñà Õèðøà (h-èíäåêñà) è åãî ìîäèôèêàöèè h s (2015)-èíäåêñà ãðóïïû ïðîäîëaeè-òåëüíî è ñòàáèëüíî ðàáîòàþùèõ ó÷åíûõ. Îáíàðóaeåíî, ÷òî õàðàêòåð èçìåíåíèÿ ñî âðå-ìåíåì h s (2015)-èíäåêñà áëèçîê ê ñèãìîèäàëüíîìó. Ïðåäëîaeåíà ìîäåëü, îïèñûâàþùàÿ äèíàìèêó èíäåêñà Õèðøà. Ìîäåëü ó÷èòûâàåò: 1) èçìåíåíèå ïóáëèêàöèîííîé àêòèâ-íîñòè ó÷åíîãî ïðåäïîëàãàåòñÿ ñèãìîèäàëüíûé ðîñò ÷èñëà ïóáëèêàöèé íà íà÷àëüíîé ñòàäèè íàó÷íîé êàðüåðû; 2) ðàñïðåäåëåíèå ñòàòåé ïî ÷èñëó öèòèðîâàíèé; 3) äèíàìèêó öèòèðîâàíèÿ êàaeäîé êîíêðåòíîé ñòàòüè (ïðèíÿòî âî âíèìàíèå, ÷òî â òèïè÷íîì ñëó÷àå ÷èñëî öèòèðîâàíèé ñíà÷àëà âîçðàñòàåò, à çàòåì ïëàâíî óáûâàåò). Èññëåäîâàíà äèíà-ìèêà èíäåêñà Õèðøà â çàâèñèìîñòè îò ñðåäíåé ïðîäóêòèâíîñòè (÷èñëà ïóáëèêóåìûõ â òå÷åíèå ãîäà ñòàòåé). Èñïîëüçîâàíû äâà âèäà ðàñïðåäåëåíèÿ ÷èñëà ñòàòåé ïî ÷èñëó öèòèðîâàíèé: ðàñïðåäåëåíèå Ëîòêè è ãåîìåòðè÷åñêîå ðàñïðåäåëåíèå. Îáà ìîäåëüíûõ ðàñïðåäåëåíèÿ ïðèâîäÿò ê êà÷åñòâåííî âåðíîé âðåìåíí îé äèíàìèêå èíäåêñà Õèðøà. Èíäåêñ Õèðøà ó÷åíîãî ìåíÿåòñÿ ñî âðåìåíåì. Õèðø ïðåäïîëîaeèë, ÷òî h-èíäåêñ ñ ãîäàìè ðàñòåò ïðèáëèçèòåëüíî ëèíåéíî [1]. Ýòî ïðåäïîëîaeåíèå áûëî ïîäòâåðaeäåíî â ðàìêàõ ñòîõàñòè÷åñêîé ìîäåëè [5]. Îäíàêî, èññëåäîâàíèÿ íàóêîìåòðè÷åñêèõ äàí-íûõ ñâèäåòåëüñòâóþò, ÷òî ëèíåéíûé ðîñò h-èíäåêñà òîëüêî îäíà èç âîçìîaeíîñòåé åãî âðåìåíí îé äèíàìèêè [6,7]. Ëèíåéíûé ðîñò ìîaeåò çàìåäëÿòüñÿ âïëîòü äî âûõî-äà h-èíäåêñà íà ïîñòîÿííîå çíà÷åíèå; âîçìîaeíî è áîëåå ñëîaeíîå ïîâåäåíèå [6]. Â ðàìêàõ êîíöåïöèè ïðîöåññà ïðîèçâîäñòâà èíôîðìàöèè áûëî ïîêàçàíî, ÷òî h = T 1/α , ãäå T ïîëíîå ÷èñëî èñòî÷íèêîâ (ïóáëèêàöèé), α ïîêàçàòåëü Ëîòêè [8]. Â [9,10] áûëà ïðåäëîaeåíà ìîäåëü, â êîòîðîé ðîñò h-èíäåêñà ñ òå÷åíèåì âðåìåíè çàìåäëÿ-åòñÿ, è h-èíäåêñ âûõîäèò íà ïîñòîÿííîå çíà÷åíèå. Â [11] ïðîâåäåíî êîìïüþòåðíîå ìîäåëèðîâàíèå äèíàìèêè èçìåíåíèÿ h-èíäåêñà ñî âðåìåíåì äëÿ ðàçëè÷íûõ ìîäåëåé ðàñïðåäåëåíèÿ öèòèðîâàíèé. Â áîëüøèíñòâå ñëó÷àåâ ìîäåëü ïðîäåìîíñòðèðîâàëà ëè-íåéíûé ðîñò ñî âðåìåíåì h-èíäåêñà, â ðåäêèõ ñëó÷àÿõ íàáëþäàëîñü çàìåäëåíèå ðîñòà h-èíäåêñà.Ðàçíîîáðàçíûé õàðàêòåð çàâèñèìîñòè h-èíäåêñà îò âðåìåíè [6,7] çàñòàâëÿåò çà-äóìàòüñÿ î äâóõ âîçìîaeíûõ àëüòåðíàòèâàõ.• Óíèâåðñàëüíîå ïîâåäåíèå h-èíäåêñà îò âðåìåíè îòñóòñòâóåò. Äëÿ êàaeäîãî ó÷å-íîãî äèíàìèêà h-èíäåêñà óíèêàëüíà.

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Predicting author h-index using characteristics of the co-author network

Cited by 61 publications

References 74 publications

Homophily in coauthorship networks of East European sociologists

Homophily in coauthorship networks of East European sociologists

Publication Productivity Pattern of Malaysian Researchers in Scopus from 1995 to 2015

Temporal Dynamics of Hirsch Index

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