Bibliometric analysis of document flow on academic social networks in Web of Science

DOI: https://doi.org/10.21203/rs.3.rs-196204/v1

Abstract

Analysis of a document array on academic social networks (ASNs) in Web of Science for the period from 2005 to 2020 was carried out with use of analytical services data of the WoS and CiteSpace (the program for visualization of patterns and trends in scientific literature). The following parameters of the array were analyzed: publication dynamics; document types structure; countries, organizations and authors leading in the number of publications; thematic categories to which documents of the array are assigned; publications (journals, monographs) in which the documents of the array are published; most cited publications. An increase in the number of publications on the ASNs in WoS was established since 2005. The largest number of ASNs studies is conducted in the USA (University of Pittsburgh), UK (Wolverhampton University, Manchester University), China, Spain (University of Granada), Germany (Max Planck Society for Scientific Research), Canada, India and the Netherlands (Leiden University). The ASNs were studied in the main thematic areas: Computer Science, Computer Science and Librarianship, Mechanical Engineering, Engineering and Technology. Four out of the first ten highly cited publications, are devoted to altmetrics. Using the CiteSpace, it was shown that when ASNs started rise, their organizational structure was beeing studed. Later, altmetrics used in the ASNs became the main subjects of ASNs research. The keywords occurrence revealed that the most frequent terms are “altmetrics”, “impact”, “citation”. As part of the document flow, also identified publications in which the ASNs are used as a source of bibliographic data for systematic or meta-analysis (in medicine predominantly), or as a platform for experimental data discussion.

Introduction

Since the development in 2005 of Web 2.0 technologies (O’Reilly 2005) and such Web 2.0 applications as text messengers, wikis, social networks, scientists, like other categories of Internet users, have become engaged in global (Facebook, Twitter, YouTube, Flickr, MySpace) and professional (LinkedIn) social networks (Boyd and Ellison 2007).

Global social networks are used by scientists both for scientific (search for scientific literature or scientific collaboration) and educational purposes (Jordan 2014). Social networks that meet the scientists’ needs in information exchange, cooperation and self-organization named academic social networks. Social networks aimed specifically at academics appeared very quickly (Nentwich et al. 2012; Ortega 2016). Boyd and Ellison noted: “The definitive components of Web 2.0 applications to be an online social network are four: a place to establish a personal profile, a list of connections with other users, the ability to monitor the activities of those who appear on the list, and the ability to establish new connections” (Boyd and Ellison 2007). In accordance with this definition, academic social networks are the well-known CiteULike, Mendeley, Academia.edu, ResearchGate, Connotea, Zotero. A data repository MyExperiment positions itself as an ASN also (Guler et al. 2016).

Global social networks are under active scientific investigation. The document array in the WoS database on this issue reaches 100,000 documents[1]. The document flow in the WoS on the problem of ASNs is more modest, it nowadays does not exceed 1500. The analysis of this document array is of interest to clarify the question of who and for what reason is showing scientific interest and other sorts of one in a new phenomenon of scientific communication - academic social networks. Bibliometric analysis was chosen to study the document flow.

Bibliometrics is a collection of methods that can be used to quantitatively and structurally analyze scientific literature. Currently, polythematic scientometric databases like Scopus and WoS are often used as a source of scientific document array. On the platforms of the databases are developed commercial scientometric analytical systems (SciVal, InCite), which make it possible to characterize multidimensionally the investigated document arrays based on bibliographic and other data on publications and authors of these publications. Also on the platforms, analytical services that provide a number of parameters allowing to assess the performance of the research field for free (SciVal, InCite are licensed separately) have been developed. We researched publications on the ASNs topic in WoS.

Another bibliometric focus is science mapping. By means of science, mapping analysis based on bibliographic networks the extraction of knowledge from the intellectual, social or conceptual structure of a research field can be done. Several science mapping software tools were developed (Cobo et al. 2011). In this work for mapping of the research field ASNs a program for patterns and trends visualization in scientific literature CiteSpace (Chen 2004, 2006, 2017; Chen et al. 2010; Chen and Song 2019).

[1] A request in WoS (July 2020) has retrieved about 100,000 documents, where the phrase "social network *" was found in the titles, authours's keywords and other controled terms.

Materials And Methods

Materials. The search for documents on the ASNs in the WoS database was carried out at the request formulated as follows: TS =("social scientific network *" or "academic social network *" or "social research network *" or "scholar * social network *" or "academic social site * "OR" social media for academics "or Mendeley or CiteULike or" Academia.edu "or ResearchGate or" Research Gate "or MyExperiment or" Scientific Social Community "or Connotea OR Zotero). Initially, the request included the names of the projects "Next Nature Network", REIsearch, Scispace, Scientbook, Epernicus, SciSpace. But when analyzing the sample, it was noticed that when they were excluded, the sample size did not change at all. That is, there are no publications on them in WoS. TS - WoS code that provides search in bibliographic record fields: title; essay; author's keywords; keywords plus WoS, upon request. The truncation character asterisk (*) represents any group of characters, including no character (for example, network * matches networks and networks). Terms that are phrases are enclosed in quotation marks ("social scientific network *"). In addition to the phrases "social scientific network *", "academic social network *", "social research network *", the query lists the names of the main scientific social networks.

There were found 1216 documents for the period from 2005 to 2020 (May 2020). The search was carried out on all WoS citation indexes available at SPSL SB RAS for the license (Science Citation Index Expanded (SCI-EXPANDED) -1975-present; Social Sciences Citation Index (SSCI) -1975-present; Arts & Humanities Citation Index (A & HCI) -1975-present; Conference Proceedings Citation Index-Science (CPCI-S) -1990-present; Conference Proceedings Citation Index-Social Science & Humanities (CPCI-SSH) -1990-present present; Book Citation Index-Science (BKCI-S) -2005-present; Book Citation Index-Social Sciences & Humanities (BKCI-SSH) -2005-present; Emerging Sources Citation Index (ESCI) - -2015-present) across all retrospective arrays including 2020.

When searching, we faced the problem of separating publications: in some, academic social networks were mentioned as a source of bibliographic information for simple review, systematic review, metanalysis, in others - as a place to store data, in still others - as a place to discuss certain professional issues. We were interested in publications where academic social networks were the object of scientific research. We tried to exclude such a document by using the not operator and listing addresses (for example, "not TS = (https://data.mendeley.com OR" Mendeley Data "OR" https://www.researchgate.net "OR myexperiment.org ), but this did not help us. When browsing the selection with exceptions using the NOT operator, we continued to find publications of the above nature, for example, publications where the ResearchGate network was simply listed as a source of bibliographic information. For this reason, we analyzed the entire document flow.

Methods

WoS. Analytical services of the WoS database were used to obtain information about the investigated document array by the following parameters: dynamics of publications by year; type-specific structure of an array of documents; leading authors in terms of the number of publications; leading organizations in terms of the number of publications; thematic categories to which the documents of the array are assigned, the distribution of publications by country; editions (magazines, monographs) in which the documents of the array are published; the most frequently cited publications.

CiteSpace. The CiteSpace, program for visualizing patterns and trends in scientific literature, used to analyze the co-citation of documents, co-occurrence of keywords in documents, and names of institutions.

Documents co-citation analysis is one of the ways to determine the relationship between various publications in a certain field of research: if two publications are cited in the third jointly, then with a high degree of probability they belong to the same research area (Small 1973). Clustering of the document citation network and automatic tagging of clusters with the author's keywords, additional WoS keywords of citing articles or terms from the titles of citing articles or terms from abstracts using the CiteSpace program allow you to identify research trends in the analyzed document array.

Collaboration networks are plotted in CiteSpace on the analysis of the co-occurrence in the document of the original array (1216 documents from WoS, in our case) of the scientific institution' names (institutions collaboration) or authors' names (authors collaboration).

The analysis of the co-occurrence of keywords in the titles of articles, abstracts, among the author's keywords and Keywords Plus WoS of the original documentary array on the ASNs topic in CiteSpace allow us to identify their frequency distribution and thematic clusters in which they are grouped. Clustering the network of co-occurred keywords and labeling them with terms from the titles of articles in which they occur together allow us to identify the topics of the investigated document array.

The results of the analysis of co-citation of documents, co-occurrence, institution names (author names), keywords are presented in the form of pictures of the corresponding networks and clusters, in which the corresponding analyzed parameters (references, authors, organizations, keywords) are grouped.

Results And Discussion

Document types and publication languages

According to analytical services WoS, the bulk of documents are scientific articles in journals (54.4% of documents), in conference proceedings (23.8% of publications) and reviews (18.2%) (Table 1). About 95% of the documents found in WoS are published in English, which is logical for the international scientometric base.

 

Table 1 Document types scientific social networks documents array from WoS

Document types

Number of in WoS

Article

661

Proceedings Paper

290

Review

222

Data Paper

55

Editorial Material

29

Early Access

28

Book Chapter

21

Letter

8

Meeting Abstract

7

Book Review

5

News Item

4

Database Review

3

Software Review

2

The dynamics of publications

The number of publications on ASNs in WoS for the period has been growing since 2005, which indicates a significant increase in the interest of scientists in ASNs (Fig. 1). The appearance of documents on the issues under study since 2005 is quite logical, since the concept of "Web 2.0" to denote services (platforms, projects) filling with information materials that users of these networks are engaged in was introduced by Tim O'Reilly (American publisher of the O'Reilly publishing house) ... He introduced it officially with an article titled "What Is Web 2.0" in 2005. (O’Reilly 2005).

Funding of the ASN researches

ASNs researches were funded by 581 organizations. It is important to take into account that 834 records about publications (68.6% of 1216) do not contain data on funding organizations. It follows from that only about 30% of the researches have been completed with the help of grant financial support. The most frequently mentioned funding organizations are shown in the table 9.

In the row of funding organizations are: National Natural Science Foundation of China; European Commission (Belgium - Luxembourg) (14 publications); National Council for Scientific and Technological Development (Brazil) (12 publications); Coordination Agency for the Improvement of Personnel in Higher Education CAPES (Brazil) (11 publications); Foundations for Basic Research for Central Universities (China) (10 publications); National Science Foundation (USA) (10 publications) (Table 2).

 

 

Table 2 Funding Organizations for the ASN Researches

Funding organizations

Country

Number of publications were the organization is mentioned

National Natural Science Foundation of China (NSFC)

China

53

European Commission (EC)

European Union

14

National Council for scientific and technological development CNPQ

Brazil

12

Coordenadoria de Aperfeiçoamento de Pessoal de Nível Superior CAPES

Brazil

11

Fundamental Research Funds for the Central Universities

China

10

National Science Foundation (NSF)

USA

10

 

The source structure of the document array on scientific social networks

The documents of the array on the ASN were published in more than 600 editions, which indicates the scattering of information. The most productive journals are Scientometrics (68 entries), Data in brief (54 entries), Journal of the association for information science and technology (27 entries), Journal of informetrics, and Lecture notes in computer science "(25 entries each)," Proceedings of the International conference on scientometrics and informetrics "(22 entries) (Table 3).

The journals, in which papers on ASNs are published, have been assigned 171 categories according to the WoS thematic classifier. The most significant categories, in which the percentage of the total number of records in the sample exceeds 10%, are: Informatics and librarianship (350 documents - 28.8%), Informatics and information systems (196 documents - 16.1%), Interdisciplinary research in the field of computer technology (158 documents - 12.9%) (Table 4).

 

Table 3 The sources of the ASNs publication

Journal

Publications

Scientometrics

72

Data in brief

58

Journal of the association for information science and technology

27

Journal of informetrics

25

Profesional de la informacion

16

Online information review

16

Journal of ethnopharmacology

13

Plos one

12

Learned publishing

10

Aslib Journal of Information Management

9

 

 

Table 4 WoS categories assigned to ASNs publications

Web of Science categories

Publications

Information science library science

350

Computer science information systems

196

Computer science interdisciplinary applications

158

Computer science theory methods

100

Multidisciplinary sciences

84

Engineering electrical electronic

70

Computer science artificial intelligence

62

Education educational research

55

Pharmacology pharmacy

39

Computer science software engineering

38

Management

28

Social sciences interdisciplinary

28

Communication

27

Surgery

24

Chemistry medicinal

20

 

Scientific meetings

Less than a fourth (24% ) of the ASNs publications are presented in the proceedings of 222 conferences. The main of ones are:

- «14th International society of scientometrics and informetrics conference ISSI» (8 documents);

- «21st International conference on science and technology indicators STI peripheries frontiers and beyond» (8 documents);

- «15th International conference of the international society for scientometrics and informetrics ISSI» and «17th International conference of the international society for scientometrics and informetrics ISSI» (7 documents);

- «IEEE ACM International conference on advances in social networks analysis and mining ASONAM» and «Internoise ASME 2012 Noise control and acoustics division conference» (5 documents).

 

Countries and organizations leading in ASNs research, structure of collaboration of organizations

Scientific social networks are researched in 105 countries, with the largest amount of research being conducted in the USA (17.5%), China (11.6%), Great Britain (10.9%), Spain (8.6%), Germany (6, 3%), Canada (5.7%), India (5%) (Table 5).

ASNs publications are affiliated with more than 1482 organizations. The main institutions deal with the issues are: University of Wolverhampton (UK) (44 documents), Leiden University (Netherlands) (20 documents), University of Manchester (UK) (18 documents), University of Pittsburgh (USA) (16 documents), University of Wuhan (China) (15 entries), Max Planck Society for Scientific Research (Institute for Solid State Research) (Germany) (13 documents), University of Granada (Spain) (13 documents), University of British Columbia (Canada) (12 entries), Malay University (Malaysia) (11 records), as well as the Russian Academy of Sciences (Russia), South China Pedagogical University (China) and the University of Southampton (UK) - 10 publications per organisation (Table 6).

Table 5 Countries conducting researches on ASNs

Country

Publications

Country

Publications

USA

213

Iran

35

peoples R China

141

Pakistan

29

United Kingdom

133

Poland

28

Spain

105

France

27

Germany

77

South Africa

27

Canada

70

Austria

24

India

62

Finland

22

Italy

60

Malaysia

22

Netherlands

54

Switzerland

21

Australia

48

South Korea

18

Brazil

46

Belgium

17

Russia

45

Saudi Arabia

16

 

Table 6 Leading scientific institutions by the number of publications on ASNs

Organizations

Country

Publications

University of Wolverhampton

UK

44

Leiden university

Netherlands

20

Manchester university

UK

18

University of Pittsburgh

USA

16

Wuhan university

China

15

Max Planck Society (Division Science & Innovation Studies)

Germany

13

Max Planck Institution of Solid State Research

Germany

13

University of Granada

Spain

13

University of British Columbia

Canada

12

University of Malaya

Malaysia

11

Russian Academy of Science

Russia

10

South China normal university

China

10

University of Southampton

UK

10

 

Leading Authors in Academic Social Networks Research

In the resulting sample of publications, 2238 authors were identified who study ASNs. The largest number of publications belongs to such researchers as: Thelwall M. (44), Bornmann L. (16), Haunschild R. (13), Costas R., Tang Y. (11), Kousha K. (10) (Table 7).

 

Table 7 Leading authors by the number of publications on scientific social networks

Authors

Organizations

Publications

Thelwall, Mike

University of Wolverhampton, Wolverhampton, United Kingdom

44

Bornmann, Lutz

Administrative Headquarters of the Max Planck Society, Munich, Germany;

16

Haunschild, Robin

Max Planck Institute for Solid State Research, Stuttgart, Germany

13

Costas, Rodrigo

Leiden University, Leiden, Netherlands

11

Tang, Yong

South China Normal University, Guangzhou, China

11

Kousha, Kayvan

University of Wolverhampton, Wolverhampton, United Kingdom

10

Abramov, Valery M.

Russian State Hydrometeorological University, Saint Petersburg, Russia

9

Ortega, Jose-Luis

Consejo Superior de Investigaciones Cientificas (CSIC)

9

Zahedi, Zohreh

Leiden University, Leiden, Netherlands

9

De Roure, David

University of Oxford, Oxford, United Kingdom; University of Southampton, Southampton, United Kingdom

8

Haustein, Stefanie

Université du Québec à Montréal, Montreal, Canada; University of Ottawa, Ottawa, Canada

8

Goble, Carole Anne

University of Manchester, Manchester, United Kingdom

7

Gogoberidze, George G.

Russian State Hydrometeorological University, Saint Petersburg, Russia

7

He, Daqing

University of Pittsburgh, Pittsburgh, PA,USA

7

Herman, Eti

University of Haifa, Haifa, Israel

7

Nicholas, David

Tomsk State University, Tomsk, Russia; CIBER Res Ltd, Berks, United Kingdom

7

Shiri R

Finnish Institute of Occupational Health, Finland

7

 

Most frequently cited publications on the topic of "academic social networks"

The ten most frequently cited articles (Table 8) on the ASN were published from 2009 to 2015. in such publications as "Nucleic acids research", "Scientometrics", "Proceedings of the national academy of sciences of the United States of America", "Journal of Informetrics", "Journal of the association for information science and technology". On average, such articles are cited 11 to 38 times per year. The total number of citations varies from 105 to 305.

The total number of citations of publications in the collection in July 2020 is 5813, the average number of citations of the document is 6.8, and the Hirsch index is 35.

Among the most frequently cited publications is the work of Wolstencroft K. et al. 2013 (Wolstencroft et al. 2013) performed at the School of Computer Science, University of Manchester. The article by Wolstencroft K. et al., 2013 is devoted to the Taverna platform, which hosts tools for processing biological research data. This article appeared as part of the scientific social media workflow due to the fact that the repository for the working materials of these studies is the NCC myExperiment. A frequently cited article by Goble C.A. is dedicated to the same network. et al. (Goble et al. 2010).

Noteworthy is the fact that out of dozens of highly cited publications, six are devoted to academic reputation on-line and altmetrics. (Bornmann 2014; Haustein et al. 2014; Li et al. 2012; Mohammadi and Thelwall 2014; Thelwall and Kousha 2015; Zahedi et al. 2014) (Table 8, highlighted in blue). Altmetrics are new methods of scientometrics that evaluate the results of research activities not based on the number of citations of publications in scientific journals (academic weight, scholarly impact - highlighted in blue in Table 8), but by their presence, mention and use on the Internet and traditional media (social weight, social impact - highlighted in blue in Table 8). In the ASN, such altmetrics are actively included. In a scientist's profile, his activity on alternative metrics can be assessed at ResearchGate, Mendeley. In articles (Li X., Thelwall M., Giustini D., 2012) (Li et al. 2012) and (Thelwall M., Kousha K., 2015) (Thelwall and Kousha 2015), the possibilities of social networks for assessing academic influence (scholarly impact measurement) are analyzed.

Two articles from the list of actively cited (Thelwall and Kousha, 2014; 2015) are devoted to scientific social networks ResearchGate and Academia.edu, respectively (Thelwall and Kousha 2014, 2015), and the article by Mohammadi E, Thelwall M., 2014 discusses the peculiarities of the altmetric "Mendeley readership" for the social sciences and humanities, in ASN Mendeley, respectively.

Among the most frequently cited articles is the article by Ahmed A, Xing EP, 2009 (Ahmed and Xing 2009), which develops a machine learning method for modeling the behavior of dynamic networks of various nature (gene networks, the network of interaction of US Senators). An academic social network is considered as one of the networks. Semantic transformations of concepts (authors' keywords) of scientific articles are modeled.

Thus, the top 10 highly cited articles indicate that scientific social networks are of interest to the scientific community as tools for assessing academic activity on the Internet, as objects for analyzing their structure, as repositories for placing scientific data, as objects for developing algorithms for analyzing scientific social networks. (computer modeling of processes, including).

 

Table 8 Top 10 Most Cited Web of Science Publications on Social Scientific Networks

 

Article

Year of publication

Number of citations

 

Wolstencroft K, Haines R, Fellows D, Williams A, Withers D, Owen S, Soiland-Reyes S, Dunlop I, Nenadic A, Fisher P, Bhagat J, Belhajjame K, Bacall F, Hardisty A, Nieva de la Hidalga A, Balcazar Vargas MP, Sufi S, Goble C (2013) The Taverna workflow suite: designing and executing workflows of Web Services on the desktop, web or in the cloud. Nucleic Acids Research 41:W557–W561 . doi: 10.1093/nar/gkt328 (Wolstencroft et al. 2013)

2013

305

 

Zahedi Z, Costas R, Wouters P (2014) How well developed are altmetrics? A cross-disciplinary analysis of the presence of ‘alternative metrics’ in scientific publications. Scientometrics 101:1491–1513 . doi: 10.1007/s11192-014-1264-0 (Zahedi et al. 2014)

2014

165

 

Bornmann L (2014) Do altmetrics point to the broader impact of research? An overview of benefits and disadvantages of altmetrics. Journal of Informetrics 8:895–903 . doi: 10.1016/j.joi.2014.09.005 (Bornmann 2014)

2014

149

 

Li X, Thelwall M, Giustini D (2012) Validating online reference managers for scholarly impact measurement. Scientometrics 91:461–471 . doi: 10.1007/s11192-011-0580-x (Li et al. 2012)

2012

146

 

Goble CA, Bhagat J, Aleksejevs S, Cruickshank D, Michaelides D, Newman D, Borkum M, Bechhofer S, Roos M, Li P, De Roure D (2010) myExperiment: a repository and social network for the sharing of bioinformatics workflows. Nucleic Acids Research 38:W677–W682 . doi: 10.1093/nar/gkq429 (Goble et al. 2010)

2010

135

 

Ahmed A, Xing EP (2009) Recovering time-varying networks of dependencies in social and biological studies. Proceedings of the National Academy of Sciences 106:11878–11883 . doi: 10.1073/pnas.0901910106 (Ahmed and Xing 2009)

2009

135

 

Haustein S, Peters I, Bar-Ilan J, Priem J, Shema H, Terliesner J (2014) Coverage and adoption of altmetrics sources in the bibliometric community. Scientometrics 101:1145–1163 . doi: 10.1007/s11192-013-1221-3 (Haustein et al. 2014)

2014

124

 

Mohammadi E, Thelwall M (2014) Mendeley readership altmetrics for the social sciences and humanities: Research evaluation and knowledge flows. Journal of the Association for Information Science and Technology 65:1627–1638 . doi: 10.1002/asi.23071 (Mohammadi and Thelwall 2014)

2014

121

 

Thelwall M, Kousha K (2015) ResearchGate: Disseminating, communicating, and measuring Scholarship? Journal of the Association for Information Science and Technology 66:876–889 . doi: 10.1002/asi.23236 (Thelwall and Kousha 2015)

2015

116

 

Thelwall M, Kousha K (2014) Academia.edu: Social network or Academic Network? Journal of the Association for Information Science and Technology 65:721–731 . doi: 10.1002/asi.23038 (Thelwall and Kousha 2014)

2014

105

 

Thematic focus of research on academic social networks

In total, the studies in which the ASNs are featured are classified in 118 thematic areas. The most quantitatively filled directions are reflected in Table 9.

 

Table 9 Distribution of publications on ASN according WoS Subject Areas

Research Areas

Publications

Computer Science

411

Information Science Library Science

350

Engineering

105

Science Technology Other Topics

88

Education Educational Research

63

Pharmacology Pharmacy

42

Business Economics

35

Social Sciences Other Topics

32

Communication

27

Surgery

24

Neurosciences Neurology

23

General internal medicine

22

Chemistry

19

Public environmental Occupational health

19

Plant sciences

18

Psychology

18

Telecommunications

18

Dentistry oral surgery medicine

17

Integrative complementary medicine

17

Physics

16

 

Scientific social networks have been investigated in the following main thematic areas: informatics - 411 documents (33.8%), informatics and librarianship - 350 documents (28.8%), mechanical engineering and technology - 105 documents (8.6%), science and technology - 88 documents (7.2%), education - 63 documents (5.2%). The presence in the sample of articles related to thematic sections of the medical direction is due to the fact that social scientific networks (ResearchGate, Mendeley) are used by physicians and biologists to select literature for a review, systematic review, meta-analysis (Agrawal et al. 2020; Bajwa et al. 2017; Simmons et al. 2020; Weldegebreal and Worku 2019). The analyzed array of 1216 documents includes about 140 publications containing terms (review and “systematic literature search” or “systematic review*” or meta-analysis) in the title, abstract or indexed terms, referred to the areas of Pharmacology Pharmacy Public, Surgery, Neurosciences Neurology, General internal medicine, Environmental Occupational Health, Medicine General Internal, Clinical Neurology, Dentistry Oral Surgery Medicine, etc., in the overwhelming majority of cases, medical, research areas.

 

 

 

Mapping the ASNs document array based on the document co-citation analysis

The document co-citation network (Fig. 3) in CiteSpace is characterized by the number of nodes and links of citation. Each node in the document co-citation network is a separate reference in the ASN document array in WoS. 662 nodes were identified, networked by 2943 co-citation links. The color of the link is determined by the year the document was first co-cited. The size of a node is determined by the number of co-citations of a given document. Table 10 presents the first 11 most frequently cited articles. In Figure 2, they are indicated by the name of the first author and the year of publication of the first 11 (out of 666) documents with high co-citation values (Table 11).

Table 10 References ranked by the number of citations in the ASN document co-citation network (highlighted in Fig. 3)

Reference co-citation

Year of publication

 

Reference

Article title

Cluster

106

2013

(Thelwall et al. 2013)

Do altmetrics work? Twitter and ten other social web services

2

91

2012

(Li et al. 2012)

Validating online reference managers for scholarly impact measurement

2

88

2014

(Van Noorden 2014)

Online collaboration: scientists and the social network

1

74

2015

(Costas et al. 2015)

Do “altmetrics” correlate with citations? Extensive comparison of altmetric indicators with citations from a multidisciplinary perspective

0

73

2015

(Thelwall and Kousha 2015)

ResearchGate: disseminating, communicating, and measuring scholarship?

1

72

2014

(Thelwall and Kousha 2014)

Academia.edu: social network or academic network?

1

71

2014

(Mohammadi and Thelwall 2014)

Mendeley readership altmetrics for the social sciences and humanities: research evaluation and knowledge flows

0

71

2014

(Zahedi et al. 2014)

How well developed are altmetrics? A cross-disciplinary analysis of the presence of ‘alternative metrics’ in scientific publications

0

64

2014

(Haustein et al. 2014)

Coverage and adoption of altmetrics sources in the bibliometric community

0

63

2010

(J. Priem et al. 2010)

Altmetrics: A manifesto

2

58

2011

(Eysenbach 2011)

Can tweets predict citations? Metrics of social impact based on Twitter and correlation with traditional metrics of scientific impact.

2

 

 

Table 11 Clusters of the document co-citation network for the document array on ASN

Cluster ID

Cluster size

Cluster silhouette

Mean year of publication

LLR (log-likelihood ratio tests)

Cluster issue interpretation; references to citing articles, from the titles, abstracts, keywords of which labels for clusters are selected

5

25

0.972

2005

Professional indexing (15.67, 1.0E-4); tagging practice (15.67, 1.0E-4); academic social network (0.1, 1.0);

There are significant differences in indexing (bookmarking in CiteULike) by article authors, social network users who bookmark pages with the article, and professional indexing by information workers (librarians-organizers) (Kipp 2011);

3

43

0.977

2007

Community recommendation (51.49, 1.0E-4); exploring social tagging (51.49, 1.0E-4); social tag (42.81, 1.0E-4);

Exploring social tagging for personalized community recommendations (Ke and Chen 2012; Kim and El Saddik 2013)

28

3

1

2007

Full-text article (13.94, 0.001); different subject field (13.94, 0.001); Google Scholar (6.04, 0.05);

ResearchGate was the top single website providing full-text files (10.5 % of full-text articles) for Google Scholar (Jamali and Nabavi 2015)

14

7

0.989

2010

Cold-start problem (14.62, 0.001); effective recommender algorithm (14.62, 0.001); academic social network (3.69, 0.1);

An Effective Recommender Algorithm for Cold-Start Problem in Academic Social Networks (Rohani et al. 2014)

2

85

0.88

2011

Social science (91.39, 1.0E-4); altmetrics source (68.44, 1.0E-4); bibliometric community (68.44, 1.0E-4); humanities research (64.45, 1.0E-4);

Mendeley reader data could be a useful supplementary measure to remedy some limitations of citation analysis across the social sciences and humanities (Mohammadi and Thelwall 2014).

0

102

0.813

2014

Case study (83.95, 1.0E-4); altmetrics data provider (80.86, 1.0E-4); meta-analysis review (80.86, 1.0E-4);

Case studies and meta-analysis reviews of altmetrics data providers (particularly Mendeley, CiteULike and others) .(Bornmann 2015; J.-L. Ortega 2020)

4

41

0.915

2014

Mendeley reader (178.49, 1.0E-4); early citation (85.72, 1.0E-4); citation count (68.31, 1.0E-4); multidisciplinary comparison (68.31, 1.0E-4);

Series of studies of ASN/bibliographic manager Mendeley (metrics "Mendeley reader", structures of the scientific community Mendeley, etc.) and some other ASN (ResearchGate) (Thelwall 2017; Thelwall and Kousha 2017).

1

100

0.934

2015

Academic social network (126.49, 1.0E-4); research universities (101.34, 1.0E-4); academic social networking site (96.81, 1.0E-4);

User, disciplinary structure of ASN, other aspects of functioning, comparative analysis of ASNs (Bhardwaj 2017)

 

 

DCA revealed 112 clusters 8 of which are visually presented on the Fig. 4, 5. For automatic marking of clusters (Figs. 3 and 4), terms from the titles of citing documents (citers) were selected by the CiteSpace program and ranked on the bases of the algorithm of the algorithm using LLR (log-likelihood ratio test) (Chen et al. 2010). In Fig. 4, 5 clusters are labeled with the same term, in tab. 12 - three or four (CiteSpace identifies 100 terms, ranked in descending order of value of the applied algorithm (LLR)).

Table 12 Articles in the document co-citation network with betweenness centrality value exceeding 0.1.

Co-citation

Betweenness centrality

Publication year

Article

4

0.19

2005

Hammond T, 2005 (Hammond et al. 2005)

27

0.16

2010

Priem J, 2010 (Jason Priem and Hemminger 2010)

2

0.15

2005

Lund B, 2005 (Lund et al. 2005)

19

0.10

2006

Golder SA, 2006. (Golder and Huberman 2006)

 

The oldest are clusters 5, 3 and 28. The average year of publication of the cited document in them is 2005 and 2007. The documents (links) of these clusters 5 and 3 are the intellectual basis of the research directions "professional indexing" and "social tagging", "Community recommendation".

At the initial stages of the formation of scientific social networks, the problem of content systematization was solved (cluster 5). Social network developers have followed a path that has already been tested in the creation of document repositories and digital libraries: labeling content with descriptors (descriptive terms), also called keywords or tags. You can navigate, filter or search by tags. In the case of a repository and a digital library, tagging was carried out by the creators of the resource (repository, digital library) using the data provided by the author of the document, and in the case of social networks, the content indexing function was provided to users and took the form of social tagging (collaborative tagging), which is also called Volksonomy (folksonomy = folk taxonomy) (Hotho et al. 2006; Rawashdeh et al. 2013). In the article, which is the main citer of the cluser (citing 10 out of 25 publications of the cluster), scientists perform a comparative analysis of thematic indexing of scientific articles using the social tagging method (CiteULike) and the professional indexing method (PubMed).

In article (Kipp 2011) , which is the main citer of the cluser (citing 10 out of 25 publications of the cluster), scientists perform a comparative analysis of thematic indexing of scientific articles by the social tagging method (CiteULike) and the professional indexing method (PubMed).

Later (cluster 3, 2007) the problem of organizing services by recommending content to users based on social tags, collaborative tagging (Community recommendations), appears.

Cluster article Golder S.A., Huberman B.A. (2006) (Golder and Huberman 2006), which is highlighted in the network as the key one (BC = 0.10) (Table 13) (Table 13), as an example are given the ASN / bibliography management systems (bibliographic managers) CiteULike[2] and Connotea[3], in which social tagging of links to scientific publications was applied.

The next in chronological order is cluster 28, which highlights the analysis of full text sources in the Google Scholar search engine as a separate topic. Of the individual sites, ASN ResearchGate is the most productive source of full text in this system (Rohani et al. 2014).

Cluster 14 (average year of publication of cluster documents - 2010) denotes research on the problem of developing recommendation systems for ASNs. Recommender systems are programs that are designed to predict which objects (movies, music, books, news, websites) will be of interest to the user, given certain information about his profile. When creating recommendation systems, the “cold-start problem” comes first. The "cold start problem" is a problem solved in the development of recommender systems in social networks. The problem is what the ASN should offer to a new user of the network and to whom to offer new content (Rohani et al. 2014).

Further, in terms of chronology and localization in the network, there are clusters (2, 0 and 4) with various aspects of studying the altmetrics “Social science”, “Case study”, “Mendeley reader” (Table 11). It is no coincidence that among the cited articles on the "path to these clusters" is the publication "Manifaesta Altmetria". In 2010, a group of four experts (Jason Priem (University of North Carolina-Chapel Hill), Dario Taraborelli (Wikimedia Foundation), Paul Groth (University of Amsterdam), Cameron Neylon (Science and Technology Facilities Council)) made a proposal using alternative metrics (alt-metrics, altmetrics) [4]. The essence of their proposals is expressed in the Altmetry Manifesto (J. Priem et al. 2010).

Almost the most numerous cluster 1 symbolizes the research front that studies various aspects of ASN: user composition, disciplinary structure of networks, comparative ASN research (Table 11).

The fact that alternative metrics of the ASN and the assessment of scientific impact on their basis are actively studied in the scientific literature is confirmed by our research using the CiteSpace program for the co-occurrence of keywords in titles, abstracts, indexed terms of articles from the array of documents on the ASN. The terms most frequently encountered in this array are "altmetrics", "impact", "citation" (Table 13).

 

Table 13 CiteSpace keywords co-occurrence analysis in the document array on ASNs

Co-occurrence frequency

Year of publication of the article with the first mention of the term

Keyword

151

2013

altmetrics

124

2012

impact

96

2008

citation

93

2012

social media

87

2013

Mendeley

76

2014

ResearchGate

59

2012

science

56

2010

academic social network

54

2011

bibliometrics

49

2014

metrics

45

2009

social network

43

2012

web

42

2015

indicator

40

2012

journal

38

2014

Twitter

38

2014

Google Scholar

37

2008

citation analysis

36

2008

information

31

2008

open access

30

2016

media

28

2016

article

25

2015

Scopus

25

2010

network

23

2007

CiteUlike

21

2013

academiaedu

21

2015

publication

21

2015

model

Примечание: Приведено 27 из 484 ключевых слов, порог включения в табл. – встречаемость не менее 20.

 


Table 14 Keywords co-occurrence network clusters

Cluster ID

Cluster size

Cluster silhouette

Mean year of publication

LLR (log-likelihood ratio tests)

4

42

0.841

2011

scientific workflow (16.18, 1.0E-4); bioinformatics (10.75, 0.005); semantic web (7.07, 0.01); training planning (5.49, 0.05);

3

45

0.884

2011

descriptor (11.93, 0.001); title keyword (11.93, 0.001); tagging (11.93, 0.001); CiteULike (11.43, 0.001);

1

86

0.77

2014

altmetrics (13.64, 0.001); citation analysis (12.43, 0.001); webometrics (10.14, 0.005); citation counts (7.6, 0.01);

0

89

0.69

2014

ResearchGate (15.86, 1.0E-4); academic social network (11.12, 0.001); social media (9.72, 0.005); social networking sites (6.68, 0.01); f1000 (5.54, 0.05);

11

4

0.976

2015

back (10.53, 0.005); physical fitness (10.53, 0.005); pelvis (10.53, 0.005); hamstring stretching (10.53, 0.005);

5

32

0.809

2016

Zotero (20.02, 1.0E-4); innovation (14.97, 0.001); author-based metrics (9.96, 0.005); feminist research (9.96, 0.005);

6

29

0.928

2017

anticancer (16.83, 1.0E-4); anti-inflammatory (16.83, 1.0E-4); antioxidant (11.18, 0.001); phytochemistry (7.49, 0.01);

2

68

0.817

2017

systematic review (10.05, 0.005); obesity (10.05, 0.005); meta-analysis (6.69, 0.01); prevalence (6.69, 0.01);

29

2

0.994

2018

clinical decision support system (?, 1.0); usage statistics (?, 1.0); academic librarians (?, 1.0); accuracy (?, 1.0);

13

3

0.997

2019

intraocular pressure (11.03, 0.001); physical activity (11.03, 0.001); glaucoma (11.03, 0.001); exercise (8.27, 0.005);

 

The results of cluster analysis of the network of co-occurrence of keywords were interesting (Fig. 5). In this case, thematic areas were revealed that were not found in DCA. These directions are not connected with the direct study of the ASNs, but with their use as a source of bibliography for performing a review, systematic review or meta-analysis (KWco-occurrence, clusters 11, 2, 29, 13). All of them are related to the analysis of medical literature. Cluster 4, which identifies the Scientific workflows + Bioinformatics topic, should be referred to the same series. Taverna Workflow Management System (http://www.taverna.org.uk) is a bioinformatics tool for managing workflows and experiments. Two articles on this platform are among the frequently cited articles (Wolstencroft et al. 2013). This tool came into our field of vision for the reason that it is compatible with the repository of workflows (workflows repositories) myExperiments, which positions itself as a scientific social network social network.

All these clusters, reviled using co-word analysis, are not identified using document citation analysis, since they are not united by a common research problem and, therefore, a common intellectual base in the form of a set of cited publications, but the use of social networks as a source of literature or a repository of workflows (workflows).

It should be noted that the research topics of such authors as Abramov, Valery M. and Gogoberidze, George G. (Russian State Hydrometeorological University, Saint Petersburg, Russia) are not explicitly reflected in the research fronts identified by CiteSpace. Moreover, both authors are included in the list of authors with a large number of publications in the studied array of documents (Table 7). The studies of these scientists are classified in WoS as Geosciences Multidisciplinary; Water Resources; Computer Science Interdisciplinary Applications, etc. The works of these scientists were included in our array for the reason that abstracts of all publications of these authors contain a link (https://www.researchgate.net/profile/Valery_Abramov2/) to V. Abramov's profile in Researchgate. “The platform gave excellent opportunities to preliminary discussion and data exchange in the frame of these researches”, writes V. Abramov. Thus, in this study, these works form the research front of cluster 0 (Table 14).

[2] In February 2019, CiteULike announced that it would be ceasing operations as of March 30, 2019).

[3] Connotea discontinued service on March 12, 2013)

[4] Altmetrics is a discipline whose subject is the creation and research of new metrics (alternative metrics) for evaluating a scientific product (articles, books, presentations, statements and discussions on the topic of scientific research, computer programs, etc.) within the virtual space (the number discussions on social networks, downloads and views in scientific repositories and bibliographic managers, etc.).

Conclusions

Academic social networks are a new type of scientific communication that is implemented in the electronic environment. Following the formation of global social networks based on Web 2.0 technologies, specialized academic social networks were developed to meet the needs of scientists. As a phenomenon of social communication, global social and scientific social networks are the object of study of scientists. A large number of scientific works are devoted to the study of global social networks. For example, in Web of Science, only in response to the query TS = (Twitter OR Facebook), we found 34,150 documents (as of January 21, 2020). The scientific document array for the ASNs topic is more modest in size. In this work, a multidimensional scientometric study of the document array presented in the WoS is carried out. Countries, organizations, scientists which are investigating or using the modern form of communication between scientists - academic social networks, are identified. It is shown that research on ASNs began to be conducted in 2005. Leaders in research on ASNs are scientists from Great Britain, Germany, USA, Spain. At present, the main issues discussed in connection with the ASNs are alternative metrics designed to reflect the activity of scientists on-line, developed for a number of networks. This is evidenced by the fact that among the most frequently cited documents according to the WoS database, there are many articles devoted to this topic. Using the program for visualizing patterns and trends in scientific literature CiteSpace, a network of citation of documents for an array according to the ASNs was built, the clustering of which made it possible to identify the main areas of research from 2005 to 2019. social tagging and professional indexing, the problem of "cold access" was solved. Subsequently, in some ASNs (Mendeley) systems for assessing scientific activity in the web environment (altmetrics) were developed. In addition, the organization of various ASNs, the behavior of their members, etc. are studied. However, altmetrics in ASNs are the main research trend. In addition, in this study, the CiteSpace program was used to identify the nature of collaboration between organizations in the study of ASNs.

It should be noted that, in our sample from WoS, along with articles that directly analyze ASNs, there are articles in which ASNs are referred to as scientific data repositories (Mendeley, myExperiment). Among them, there are articles with high citation rates (Goble et al. 2010; Wolstencroft et al. 2013). All this indicates that the document flow we are analyzing reflects not only the fact that ASNs are the object of scientific research, but also the fact that ASNs have entered directly into the life of scientists.

Academic social networks continue to evolve. For example, there are messages about the termination of activities of some of them (CiteULike, Connotea). Time will show what the further ways of transforming scientific social networks will be. As well as the developing phenomenon of scientific communication, ASNs require further research.

References

Agrawal, S., Goel, A. D., Gupta, N., Lohiya, A., & Gonuguntla, H. K. (2020). Diagnostic utility of endobronchial ultrasound (EBUS) features in differentiating malignant and benign lymph nodes - A systematic review and meta-analysis. Respiratory Medicine, 171, 106097. https://doi.org/10.1016/j.rmed.2020.106097

Ahmed, A., & Xing, E. P. (2009). Recovering time-varying networks of dependencies in social and biological studies. Proceedings of the National Academy of Sciences, 106(29), 11878–11883. https://doi.org/10.1073/pnas.0901910106

Ayele, Y., Mekuria, A. N., Tola, A., Mishore, K. M., & Geleto, F. B. (2020). Prescription drugs use during pregnancy in Ethiopia: A systematic review and meta-analysis. SAGE Open Medicine, 8, 205031212093547. https://doi.org/10.1177/2050312120935471

Bajwa, M. S., Tudur-Smith, C., Shaw, R. J., & Schache, A. G. (2017). Fibrin sealants in soft tissue surgery of the head and neck: A systematic review and meta-analysis of randomised controlled trials. Clinical Otolaryngology, 42(6), 1141–1152. https://doi.org/10.1111/coa.12837

Bhardwaj, R. K. (2017). Academic social networking sites: Comparative analysis of ResearchGate, Academia.edu, Mendeley and Zotero. Information and Learning Science, 118(5/6), 298–316. https://doi.org/10.1108/ILS-03-2017-0012

Bornmann, L. (2014). Do altmetrics point to the broader impact of research? An overview of benefits and disadvantages of altmetrics. Journal of Informetrics, 8(4), 895–903. https://doi.org/10.1016/j.joi.2014.09.005

Bornmann, L. (2015). Alternative metrics in scientometrics: a meta-analysis of research into three altmetrics. Scientometrics, 103(3), 1123–1144. https://doi.org/10.1007/s11192-015-1565-y

Boyd, D. M., & Ellison, N. B. (2007). Social Network Sites: Definition, History, and Scholarship. Journal of Computer-Mediated Communication, 13(1), 210–230. https://doi.org/10.1111/j.1083-6101.2007.00393.x

Chen, C. (2004). Searching for intellectual turning points: progressive knowledge domain visualization. Proceedings of the National Academy of Sciences of the United States of America, 101(Supplement 1), 5303–5310. https://doi.org/10.1073/pnas.0307513100

Chen, C. (2006). CiteSpace II: Detecting and visualizing emerging trends and transient patterns in scientific literature. Journal of the American Society for Information Science and Technology, 57(3), 359–377. https://doi.org/10.1002/asi.20317

Chen, C. (2017). Science Mapping: A Systematic Review of the Literature. Journal of Data and Information Science, 2(2), 1–40. https://doi.org/10.1515/jdis-2017-0006

Chen, C., Ibekwe-SanJuan, F., & Hou, J. (2010). The structure and dynamics of cocitation clusters: A multiple-perspective cocitation analysis. Journal of the American Society for Information Science and Technology, 61(7), 1386–1409. https://doi.org/10.1002/asi.21309

Chen, C., & Song, M. (2019). Visualizing a field of research: A methodology of systematic scientometric reviews. PLOS ONE, 14(10), e0223994. https://doi.org/10.1371/journal.pone.0223994

Cobo, M. J., López-Herrera, A. G., Herrera-Viedma, E., & Herrera, F. (2011). Science mapping software tools: Review, analysis, and cooperative study among tools. Journal of the American Society for Information Science and Technology, 62(7), 1382–1402. https://doi.org/10.1002/asi.21525

Costas, R., Zahedi, Z., & Wouters, P. (2015). Do “altmetrics” correlate with citations? Extensive comparison of altmetric indicators with citations from a multidisciplinary perspective. Journal of the Association for Information Science and Technology, 66(10), 2003–2019. https://doi.org/10.1002/asi.23309

Eysenbach, G. (2011). Can tweets predict citations? Metrics of social impact based on Twitter and correlation with traditional metrics of scientific impact. Journal of medical Internet research, 13(4). https://doi.org/10.2196/jmir.2012

Goble, C. A., Bhagat, J., Aleksejevs, S., Cruickshank, D., Michaelides, D., Newman, D., et al. (2010). myExperiment: a repository and social network for the sharing of bioinformatics workflows. Nucleic Acids Research, 38(suppl_2), W677–W682. https://doi.org/10.1093/nar/gkq429

Golder, S. A., & Huberman, B. A. (2006). Usage patterns of collaborative tagging systems. Journal of Information Science, 32(2), 198–208. https://doi.org/10.1177/0165551506062337

Guler, A. T., Waaijer, C. J. F., & Palmblad, M. (2016). Scientific workflows for bibliometrics. Scientometrics, 107(2), 385–398. https://doi.org/10.1007/s11192-016-1885-6

Hammond, T., Hannay, T., Lund, B., & Scott, J. (2005). Social Bookmarking Tools (I). D-Lib Magazine, 11(04). https://doi.org/10.1045/april2005-hammond

Haustein, S., Peters, I., Bar-Ilan, J., Priem, J., Shema, H., & Terliesner, J. (2014). Coverage and adoption of altmetrics sources in the bibliometric community. Scientometrics, 101(2), 1145–1163. https://doi.org/10.1007/s11192-013-1221-3

Hotho, A., J a schke, R., Schmitz, C., & Stumme, G. (2006). Information Retrieval in Folksonomies: Search and Ranking BT  - The Semantic Web: Research and Applications. The Semantic Web: Research and Applications, 4011(31), 411–426. http://dx.doi.org/10.1007/11762256%5C_31%0Apapers3://publication/doi/10.1007/11762256_31

Jamali, H. R., & Nabavi, M. (2015). Open access and sources of full-text articles in Google Scholar in different subject fields. SCIENTOMETRICS, 105(3), 1635–1651. https://doi.org/10.1007/s11192-015-1642-2

Jordan, K. (2014). Academicss Awareness, Perceptions and Uses of Social Networking Sites: Analysis of a Social Networking Sites Survey Dataset. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.2507318

Ke, H.-R., & Chen, Y.-N. (2012). Structure and pattern of social tags for keyword selection behaviors. Scientometrics, 92(1), 43–62. https://doi.org/10.1007/s11192-012-0718-5

Kim, H.-N., & El Saddik, A. (2013). Exploring social tagging for personalized community recommendations. User Modeling and User-Adapted Interaction, 23(2–3), 249–285. https://doi.org/10.1007/s11257-012-9130-3

Kipp, M. E. I. (2011). User, Author and Professional Indexing in Context: An Exploration of Tagging Practices on CiteULike / Le contexte de l’indexation des usagers, des créateurs et des professionnels : une exploration des pratiques d’étiquetage social sur CiteULike. Canadian Journal of Information and Library Science, 35(1), 17–48. https://doi.org/10.1353/ils.2011.0008

Li, X., Thelwall, M., & Giustini, D. (2012). Validating online reference managers for scholarly impact measurement. Scientometrics, 91(2), 461–471. https://doi.org/10.1007/s11192-011-0580-x

Lund, B., Hammond, T., Flack, M., & Hannay, T. (2005). Social Bookmarking Tools (II). D-Lib Magazine, 11(04). https://doi.org/10.1045/april2005-lund

Mohammadi, E., & Thelwall, M. (2014). Mendeley readership altmetrics for the social sciences and humanities: Research evaluation and knowledge flows. Journal of the Association for Information Science and Technology, 65(8), 1627–1638. https://doi.org/10.1002/asi.23071

Nentwich, M., Konig, R., König, R., für Medien und Interaktivität, J. L.-U. G. Z., & der Wissenschaften. Institut für Technikfolgen-Abschätzung, Ö. A. (2012). Cyberscience 2.0: Research in the Age of Digital Social Networks. Campus Verlag. https://books.google.ru/books?id=tAf4FhXWS0kC

O’Reilly, T. (2005). What is Web 2.0. Design patterns and business models for the next generation of software. http://www.oreillynet.com/pub/a/oreilly/tim/news/2005/09/30/what-is-web-20.html. Accessed 10 July 2020

Ortega, J.-L. (2020). Altmetrics data providers: A meta-analysis review of the coverage of metrics and publication. El Profesional de la Información, 29(1). https://doi.org/10.3145/epi.2020.ene.07

Ortega, J. L. (2016). Social Network Sites for Scientists: A Quantitative Survey. Elsevier Science. https://books.google.ru/books?id=mmJfCgAAQBAJ

Priem, J., Taraborelli, D., Groth, P., & Neylon, C. (2010). Altmetrics: A manifesto, 26 October 2010. 26 October 2010.

Priem, Jason, & Hemminger, B. H. (2010). Scientometrics 2.0: New metrics of scholarly impact on the social Web. First Monday, 15(7). https://doi.org/10.5210/fm.v15i7.2874

Rawashdeh, M., Kim, H.-N., Alja’am, J. M., & El Saddik, A. (2013). Folksonomy link prediction based on a tripartite graph for tag recommendation. Journal of Intelligent Information Systems, 40(2), 307–325. https://doi.org/10.1007/s10844-012-0227-2

Rohani, V. A., Kasirun, Z. M., Kumar, S., & Shamshirband, S. (2014). An Effective Recommender Algorithm for Cold-Start Problem in Academic Social Networks. Mathematical Problems in Engineering, 2014, 1–11. https://doi.org/10.1155/2014/123726

Simmons, S. M., Caird, J. K., Ta, A., Sterzer, F., & Hagel, B. E. (2020). Plight of the distracted pedestrian: a research synthesis and meta-analysis of mobile phone use on crossing behaviour. Injury Prevention, 26(2), 170–176. https://doi.org/10.1136/injuryprev-2019-043426

Small, H. (1973). Co-citation in the scientific literature: A new measure of the relationship between two documents. Journal of the American Society for Information Science, 24(4), 265–269. https://doi.org/10.1002/asi.4630240406

Thelwall, M. (2017). Are Mendeley reader counts useful impact indicators in all fields? Scientometrics, 113(3), 1721–1731. https://doi.org/10.1007/s11192-017-2557-x

Thelwall, M., Haustein, S., Larivière, V., & Sugimoto, C. R. (2013). Do Altmetrics Work? Twitter and Ten Other Social Web Services. PLoS ONE, 8(5), e64841. https://doi.org/10.1371/journal.pone.0064841

Thelwall, M., & Kousha, K. (2014). Academia.edu: Social network or Academic Network? Journal of the Association for Information Science and Technology, 65(4), 721–731. https://doi.org/10.1002/asi.23038

Thelwall, M., & Kousha, K. (2015). ResearchGate: Disseminating, communicating, and measuring Scholarship? Journal of the Association for Information Science and Technology, 66(5), 876–889. https://doi.org/10.1002/asi.23236

Thelwall, M., & Kousha, K. (2017). ResearchGate versus Google Scholar: Which finds more early citations? Scientometrics, 112(2), 1125–1131. https://doi.org/10.1007/s11192-017-2400-4

van Eck, N. J., & Waltman, L. (2010). Software survey: VOSviewer, a computer program for bibliometric mapping. Scientometrics, 84(2), 523–538. https://doi.org/10.1007/s11192-009-0146-3

Van Noorden, R. (2014). Online collaboration: Scientists and the social network. Nature, 512(7513), 126–129. https://doi.org/10.1038/512126a

Weldegebreal, F., & Worku, T. (2019). Precancerous Cervical Lesion Among HIV-Positive Women in Sub-Saharan Africa: A Systematic Review and Meta-Analysis. Cancer Control, 26(1), 107327481984587. https://doi.org/10.1177/1073274819845872

Wolstencroft, K., Haines, R., Fellows, D., Williams, A., Withers, D., Owen, S., et al. (2013). The Taverna workflow suite: designing and executing workflows of Web Services on the desktop, web or in the cloud. Nucleic Acids Research, 41(W1), W557–W561. https://doi.org/10.1093/nar/gkt328

Zahedi, Z., Costas, R., & Wouters, P. (2014). How well developed are altmetrics? A cross-disciplinary analysis of the presence of ‘alternative metrics’ in scientific publications. Scientometrics, 101(2), 1491–1513. https://doi.org/10.1007/s11192-014-1264-0

Declarations

Declaration of Competing Interest

The authors have no conflicts to disclose.

 

Acknowledgements

The authors are grateful to Kosyakov D.V. (State Public Scientific Technological Library of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation) for the fruitful paper discussion, comments and advises.