<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0187-358X</journal-id>
<journal-title><![CDATA[Investigación bibliotecológica]]></journal-title>
<abbrev-journal-title><![CDATA[Investig. bibl]]></abbrev-journal-title>
<issn>0187-358X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Investigaciones Bibliotecológicas y de la Información]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-358X2023000300108</article-id>
<article-id pub-id-type="doi">10.22201/iibi.24488321xe.2023.96.58777</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Veinticinco años de investigación en redes sociales: evolución de temas entre 1997 y 2021 empleando el algoritmo Asignación Latente de Dirichlet]]></article-title>
<article-title xml:lang="en"><![CDATA[Twenty-five Years of Research in Social Networks: Evolution of Topics between 1997 and 2021 Based on Latent Dirichlet Allocation (LDA)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Comeche]]></surname>
<given-names><![CDATA[Juan-Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Complutense de Madrid Facultad de Ciencias de la Documentación Departamento de Biblioteconomía y Documentación]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<volume>37</volume>
<numero>96</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-358X2023000300108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-358X2023000300108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-358X2023000300108&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El campo de las redes sociales ha sufrido importantes transformaciones en los últimos veinticinco años, en particular con la introducción de aplicaciones y plataformas digitales, así como la incorporación de estudios de otros campos del conocimiento que adoptan el enfoque de redes sociales en sus análisis. Este artículo ofrece una visión general de la evolución de los tópicos de investigación en este ámbito entre 1997 y 2021 a partir de la modelización de temas. El estudio parte de la producción académica que se recupera de la base de datos Scopus, considerando ventanas temporales de un año y utilizando el software Mallet. Se obtienen siete temas, cuya evolución en el tiempo se describe. Se concluye que los temas relacionados con los medios de comunicación social, así como las redes sociales en línea son estudiados con especial intensidad en los últimos años.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The social network field has suffered significant transformations in the last 25 years, particularly with the introduction of social networks online, as well as incorporated studies from many other knowledge fields that adopt the social network approach in their analyses. This paper offers an overview of the evolution of research topics in this field between 1997 and 2021 based on topic modeling. The methodology used draws from the Scopus database, considering time windows of a year and using the software, Mallet. Seven topics are obtained, whose evolution over time is described. It is concluded that the topics related to social media and social networks online have been studied with special intensity in the last years.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Redes sociales]]></kwd>
<kwd lng="es"><![CDATA[Evolución temática]]></kwd>
<kwd lng="es"><![CDATA[SCOPUS]]></kwd>
<kwd lng="es"><![CDATA[LDA]]></kwd>
<kwd lng="es"><![CDATA[Medios de comunicación social]]></kwd>
<kwd lng="en"><![CDATA[Social networks]]></kwd>
<kwd lng="en"><![CDATA[Topic evolution]]></kwd>
<kwd lng="en"><![CDATA[SCOPUS]]></kwd>
<kwd lng="en"><![CDATA[LDA]]></kwd>
<kwd lng="en"><![CDATA[Social media]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Agarwal]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Arya]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Bhasin]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The evolution of internal employer branding and employee engagement: The temporal role of internal social media usage]]></article-title>
<source><![CDATA[Journal of Information and Knowledge Management]]></source>
<year>2021</year>
<volume>20</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>2150012</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aichner]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Jacob]]></surname>
<given-names><![CDATA[F. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Measuring the degree of corporate social media use]]></article-title>
<source><![CDATA[International Journal of Market Research]]></source>
<year>2015</year>
<volume>57</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>257-75</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<collab>Alias-I</collab>
<source><![CDATA[LingPipe Home]]></source>
<year>2016</year>
<publisher-name><![CDATA[Alias-i]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<collab>Apache Software Foundation</collab>
<source><![CDATA[Welcome to Apache Lucene]]></source>
<year>2022</year>
<publisher-name><![CDATA[ASF]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Armann-Keown]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Patterson]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Content analysis in library and information research: An analysis of trends]]></article-title>
<source><![CDATA[Library &amp; Information Science Research]]></source>
<year>2020</year>
<volume>42</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>101048</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arruda]]></surname>
<given-names><![CDATA[H. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Costa]]></surname>
<given-names><![CDATA[L. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Amancio]]></surname>
<given-names><![CDATA[D. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Topic segmentation via community detection in complex networks]]></article-title>
<source><![CDATA[Chaos]]></source>
<year>2016</year>
<volume>26</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>063120</page-range><publisher-loc><![CDATA[Woodbury, N.Y. ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ballester]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Penner]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Robustness, replicability and scalability in topic modelling]]></article-title>
<source><![CDATA[Journal of Informetrics]]></source>
<year>2022</year>
<volume>16</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>101224</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Banerjee]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Basu]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Topic Models over Text Streams: A Study of Batch and Online Unsupervised Learning]]></source>
<year>2007</year>
<conf-name><![CDATA[ the seventhSIAM international conference on Data Mining]]></conf-name>
<conf-loc> </conf-loc>
<page-range>431-6</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Berkowitz]]></surname>
<given-names><![CDATA[S. D.]]></given-names>
</name>
</person-group>
<source><![CDATA[An introduction to structural analysis: The network approach to social research]]></source>
<year>1982</year>
<publisher-name><![CDATA[Butterworths]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blei]]></surname>
<given-names><![CDATA[D. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Lafferty]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Dynamic topic models]]></source>
<year>2006</year>
<conf-name><![CDATA[ 23rdInternational Conference on Machine Learning]]></conf-name>
<conf-loc> </conf-loc>
<page-range>113-20</page-range><publisher-name><![CDATA[ACM Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blei]]></surname>
<given-names><![CDATA[D. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ng]]></surname>
<given-names><![CDATA[A. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Jordan]]></surname>
<given-names><![CDATA[M. I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Latent Dirichlet Allocation]]></article-title>
<source><![CDATA[Journal of Machine Learning Research]]></source>
<year>2003</year>
<volume>3</volume>
<numero>4-5</numero>
<issue>4-5</issue>
<page-range>993-1022</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Boyd]]></surname>
<given-names><![CDATA[D. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ellison]]></surname>
<given-names><![CDATA[N. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Social Network Sites: Definition, History, and Scholarship]]></article-title>
<source><![CDATA[Journal of Computer-Mediated Communication]]></source>
<year>2008</year>
<volume>13</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>210-30</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brigadir]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Default English stopwords lists from many different sources]]></source>
<year>2022</year>
<publisher-name><![CDATA[Github]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Buehling]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changing research topic trends as an effect of publication ranking: The case of German economists and the Handelsblatt Ranking]]></article-title>
<source><![CDATA[Journal of Informetrics]]></source>
<year>2021</year>
<volume>15</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>101199</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bunnenberg]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Logge]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Steffen]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Social Media History]]></article-title>
<source><![CDATA[Historische Anthropologie]]></source>
<year>2021</year>
<volume>29</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>267-83</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cacheda Seijo]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández Luna]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Huete Guadix]]></surname>
<given-names><![CDATA[J. F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Recuperación de información: un enfoque práctico y multidisciplinar]]></source>
<year>2011</year>
<publisher-name><![CDATA[Ra-Ma]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chabowski]]></surname>
<given-names><![CDATA[B. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Samiee]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A bibliometric examination of the literature on emerging market MNEs as the basis for future research]]></article-title>
<source><![CDATA[Journal of Business Research]]></source>
<year>2023</year>
<volume>155</volume>
<page-range>113263</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chang]]></surname>
<given-names><![CDATA[Y.-W.]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[M.-H.]]></given-names>
</name>
<name>
<surname><![CDATA[Lin]]></surname>
<given-names><![CDATA[C.-W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evolution of research subjects in Library and Information Science based on keyword, bibliographical coupling, and co-citation analyses]]></article-title>
<source><![CDATA[Scientometrics]]></source>
<year>2015</year>
<volume>105</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>2071-87</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Tsutsui]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ding]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Understanding the topic evolution in a scientific domain: An exploratory study for the field of information retrieval]]></article-title>
<source><![CDATA[Journal of Informetrics]]></source>
<year>2017</year>
<volume>11</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1175-89</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[CiteSpace II: Detecting and visualizing emerging trends and transient patterns in scientific literature]]></article-title>
<source><![CDATA[Journal of the American Society for Information Science and Technology]]></source>
<year>2006</year>
<volume>57</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>359-77</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Park]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Song]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The evolution of social health research topics: A data-driven analysis]]></article-title>
<source><![CDATA[Social Science &amp; Medicine]]></source>
<year>2020</year>
<volume>265</volume>
<page-range>113299</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chodera]]></surname>
<given-names><![CDATA[J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Pande]]></surname>
<given-names><![CDATA[V. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The social network (of protein conformations)]]></article-title>
<source><![CDATA[Proceedings of the National Academy of Sciences of the United States of America]]></source>
<year>2011</year>
<volume>108</volume>
<numero>32</numero>
<issue>32</issue>
<page-range>12969-70</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Deerwester]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Dumais]]></surname>
<given-names><![CDATA[S. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Furnas]]></surname>
<given-names><![CDATA[G. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Landauer]]></surname>
<given-names><![CDATA[T. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Harshman]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Indexing by latent semantic analysis]]></article-title>
<source><![CDATA[Journal of the American Society for Information Science]]></source>
<year>1990</year>
<volume>41</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>391-407</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ding]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dynamic topic detection and tracking: A comparison of HDP, C-word, and cocitation methods]]></article-title>
<source><![CDATA[Journal of the Association for Information Science and Technology]]></source>
<year>2014</year>
<volume>65</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>2084-97</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ding]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Chowdhury]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Foo]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bibliometric cartography of information retrieval research by using co-word analysis]]></article-title>
<source><![CDATA[Information Processing y Management]]></source>
<year>2001</year>
<volume>37</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>817-42</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferrer]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Solé]]></surname>
<given-names><![CDATA[R. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Köhler]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Patterns in syntactic dependency networks]]></article-title>
<source><![CDATA[Physical Review E]]></source>
<year>2004</year>
<volume>69</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>051915</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Freeman]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Computer programs in social network analysis]]></article-title>
<source><![CDATA[Connections]]></source>
<year>1988</year>
<volume>11</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>26-31</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Freeman]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[The development of social network analysis: A study in the sociolog y of science]]></source>
<year>2004</year>
<publisher-name><![CDATA[Empirical Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gálvez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evolución del campo de investigación de los social media mediante mapas de la ciencia (2008-2017)]]></article-title>
<source><![CDATA[Communication &amp; Society]]></source>
<year>2019</year>
<volume>32</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>61-76</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gaul]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Vincent]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of the evolution of relationships between topics over time]]></article-title>
<source><![CDATA[Advances in Data Analysis and Classification]]></source>
<year>2017</year>
<volume>11</volume>
<page-range>159-78</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gore]]></surname>
<given-names><![CDATA[D. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Schueler]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramani]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Uvin]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Phillips]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[McNulty]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Fujimoto]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Schneider]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[HIV response interventions that integrate HIV molecular cluster and social network analysis: A systematic review]]></article-title>
<source><![CDATA[AIDS and Behavior]]></source>
<year>2021</year>
<volume>26</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1750-92</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Graham]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Weingart]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Milligan]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Getting started with topic modeling and Mallet]]></source>
<year>2021</year>
</nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Griffiths]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Steyvers]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Finding scientifics topics]]></article-title>
<source><![CDATA[Proceedings of the National Academy of Sciences of the United States of America]]></source>
<year>2004</year>
<volume>101</volume>
<numero>^s1</numero>
<issue>^s1</issue>
<supplement>1</supplement>
<page-range>5228-35</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ha]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Park]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Analysis of Twitter research trends based on SLR]]></source>
<year>2014</year>
<conf-name><![CDATA[ 16thInternational Conference on Advanced Communication Technology]]></conf-name>
<conf-loc> </conf-loc>
<page-range>774-8</page-range><publisher-name><![CDATA[IEEE]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Han]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evolution of research topics in LIS between 1996 and 2019: An analysis based on latent Dirichlet allocation topic model]]></article-title>
<source><![CDATA[Scientometrics]]></source>
<year>2020</year>
<volume>125</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>2561-95</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Harary]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[The Graph Theory]]></source>
<year>1969</year>
<publisher-name><![CDATA[Addison-Wesley Publishing Company]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Heider]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Attitudes and cognitive organization]]></article-title>
<source><![CDATA[The Journal of Psychology]]></source>
<year>1946</year>
<volume>21</volume>
<page-range>107-12</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hofmann]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Probabilistic latent semantic indexing]]></source>
<year>1999</year>
<conf-name><![CDATA[ 22ndannual international ACM SIGIR conference on Research and development in information retrieval]]></conf-name>
<conf-loc> </conf-loc>
<page-range>50-7</page-range><publisher-name><![CDATA[Association for Computing Machinery]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Isasi]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Modelado de temas con Mallet]]></source>
<year>2022</year>
</nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jeong]]></surname>
<given-names><![CDATA[D. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Min]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Time gap analysis by the topic model-based temporal technique]]></article-title>
<source><![CDATA[Journal of Informetrics]]></source>
<year>2014</year>
<volume>8</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>776-90</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[B. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Contar todas las palabras diferentes en un archivo de texto]]></source>
<year>2019</year>
<publisher-name><![CDATA[LWP, lawebdelprogramador]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jung]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Yoon]]></surname>
<given-names><![CDATA[W. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An alternative topic model based on Common Interest Authors for topic evolution analysis]]></article-title>
<source><![CDATA[Journal of Informetrics]]></source>
<year>2020</year>
<volume>14</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>101040</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kai]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Qing]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Kunlun]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Siluo]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Jin]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Xiaokang]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Jie]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Huayi]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Ya]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Qibing]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Understanding the topic evolution of scientific literatures like an evolving city: Using Google Word2Vec model and spatial autocorrelation analysis]]></article-title>
<source><![CDATA[Information Processing and Management]]></source>
<year>2019</year>
<volume>56</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1185-203</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kleinberg]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bursty and hierarchical structure in streams]]></article-title>
<source><![CDATA[Data Mining y Knowledge Discovery]]></source>
<year>2002</year>
<volume>7</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>373-97</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Knoke]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Kuklinski]]></surname>
<given-names><![CDATA[J. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Network analysis]]></source>
<year>1982</year>
<publisher-name><![CDATA[Sage]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Evaluation of topic modeling: Topic coherence]]></source>
<year>2018</year>
</nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Landauer]]></surname>
<given-names><![CDATA[T. K.]]></given-names>
</name>
<name>
<surname><![CDATA[McNamara]]></surname>
<given-names><![CDATA[D. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Dennis]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Kintsch]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Handbook of latent semantic analysis]]></source>
<year>2007</year>
<publisher-name><![CDATA[Taylor y Francis Group]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Leydesdorff]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[On the normalization and visualization of author co-citation data: Salton&#8217;s Cosine versus the Jaccard index]]></article-title>
<source><![CDATA[Journal of the American Society for Information Science and Technology]]></source>
<year>2007</year>
<volume>59</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>77-85</page-range></nlm-citation>
</ref>
<ref id="B49">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Lei]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A bibliometric analysis of topic modelling studies (2000-2017)]]></article-title>
<source><![CDATA[Journal of Information Science]]></source>
<year>2021</year>
<volume>47</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>161-75</page-range></nlm-citation>
</ref>
<ref id="B50">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review of enterprise social media: visualization of landscape and evolution]]></article-title>
<source><![CDATA[Internet Research]]></source>
<year>2021</year>
<volume>31</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1203-35</page-range></nlm-citation>
</ref>
<ref id="B51">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Tang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mapping the technology evolution path: a novel model for dynamic topic detection and tracking]]></article-title>
<source><![CDATA[Scientometrics]]></source>
<year>2020</year>
<volume>125</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>2043-90</page-range></nlm-citation>
</ref>
<ref id="B52">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Y.-R.]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Guo]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An integrated latent Dirichlet allocation and Word2vec method for generating the topic evolution of mental models from global to local]]></article-title>
<source><![CDATA[Expert Systems With Applications]]></source>
<year>2023</year>
<volume>212</volume>
<page-range>118695</page-range></nlm-citation>
</ref>
<ref id="B53">
<nlm-citation citation-type="book">
<collab>Mallet</collab>
<source><![CDATA[Importing data Mallet]]></source>
<year>2022</year>
<publisher-name><![CDATA[Mallet]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B54">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McCallum]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
</person-group>
<source><![CDATA[MALLET: A Machine Learning for Language Toolkit]]></source>
<year>2022</year>
</nlm-citation>
</ref>
<ref id="B55">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McCallum]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Topic model diagnostics]]></source>
<year>2022</year>
</nlm-citation>
</ref>
<ref id="B56">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McCallum]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Corrada-Emmanuel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Topic and role discovery in social networks with experiments on Enron and academic email]]></article-title>
<source><![CDATA[Journal of Artificial Intelligence Research]]></source>
<year>2007</year>
<volume>30</volume>
<page-range>249-72</page-range></nlm-citation>
</ref>
<ref id="B57">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McCandless]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hatcher]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Gospodnetic]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<source><![CDATA[Lucene in action]]></source>
<year>2010</year>
<publisher-name><![CDATA[Manning]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B58">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mikolov]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Corrado]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Dean]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Efficient estimation of word representations invector space]]></source>
<year>2013</year>
<page-range>1301.3781</page-range><publisher-name><![CDATA[arXiv]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B59">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Interpersonal therapy and the psychopathology of interpersonal relations]]></article-title>
<source><![CDATA[Sociometry]]></source>
<year>1937</year>
<volume>1</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>9-76</page-range></nlm-citation>
</ref>
<ref id="B60">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Jennings]]></surname>
<given-names><![CDATA[H. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Statistics of social configurations]]></article-title>
<source><![CDATA[Sociometry]]></source>
<year>1938</year>
<volume>1</volume>
<numero>3-4</numero>
<issue>3-4</issue>
<page-range>342-73</page-range></nlm-citation>
</ref>
<ref id="B61">
<nlm-citation citation-type="book">
<collab>NLTK</collab>
<source><![CDATA[Natural Language Toolkit]]></source>
<year>2022</year>
<publisher-name><![CDATA[NLTK]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B62">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Onyancha]]></surname>
<given-names><![CDATA[O. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Forty-five years of LIS research evolution, 1971-2015: An informetrics study of the author-supplied keywords]]></article-title>
<source><![CDATA[Publishing Research Quarterly]]></source>
<year>2018</year>
<volume>34</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>456-70</page-range></nlm-citation>
</ref>
<ref id="B63">
<nlm-citation citation-type="book">
<collab>OpenNLP</collab>
<source><![CDATA[SnowballStemmer (Apache OpenNLP Tools 1.8.0 API)]]></source>
<year>2022</year>
<publisher-name><![CDATA[Open-NLP Tools]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B64">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Otte]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Rousseau]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Social network analysis: A powerful strategy, also for the information sciences]]></article-title>
<source><![CDATA[Journal of Information Science]]></source>
<year>2002</year>
<volume>28</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>441-53</page-range></nlm-citation>
</ref>
<ref id="B65">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pappi]]></surname>
<given-names><![CDATA[F. U.]]></given-names>
</name>
<name>
<surname><![CDATA[Stelck]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ein Databanksystem zur Netzwerkanalyse]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Pappi]]></surname>
<given-names><![CDATA[F. U.]]></given-names>
</name>
</person-group>
<source><![CDATA[Methoden Netzwerkanalyse]]></source>
<year>1987</year>
<edition>1st</edition>
<page-range>253-65</page-range><publisher-name><![CDATA[Oldenberg]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B66">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peset]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Garzón-Farinos]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[L. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Survival analysis of author keywords: An application to the library and information sciences area]]></article-title>
<source><![CDATA[Journal of the Association for Information Science and Technolog y]]></source>
<year>2020</year>
<volume>71</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>462-73</page-range></nlm-citation>
</ref>
<ref id="B67">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pohlert]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Non-parametric trend tests and change-point detection]]></source>
<year>2022</year>
<publisher-name><![CDATA[R project]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B68">
<nlm-citation citation-type="">
<collab>R Core Team</collab>
<source><![CDATA[Hclust function: Hierarchical Clustering]]></source>
<year>2022</year>
</nlm-citation>
</ref>
<ref id="B69">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ricci]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Movimentos e mobilizaç&#333;es sociais no Brasil: de 2013 aos dias atuais]]></article-title>
<source><![CDATA[Saúde em Debate]]></source>
<year>2018</year>
<volume>42</volume>
<page-range>90-107</page-range></nlm-citation>
</ref>
<ref id="B70">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ridings]]></surname>
<given-names><![CDATA[C. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gefen]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Arinze]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Some antecedents and effects of trust in virtual communities]]></article-title>
<source><![CDATA[The Journal of Strategic Information Systems]]></source>
<year>2002</year>
<volume>11</volume>
<numero>3-4</numero>
<issue>3-4</issue>
<page-range>271-95</page-range></nlm-citation>
</ref>
<ref id="B71">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shan]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A survey of topic evolution based on LDA]]></article-title>
<source><![CDATA[Journal of Chinese Information Processing]]></source>
<year>2010</year>
<volume>24</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>43-50</page-range></nlm-citation>
</ref>
<ref id="B72">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sharma]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Verma]]></surname>
<given-names><![CDATA[H. V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Social media marketing: Evolution and change]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Heggde]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Shainesh]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Social Media Marketing: Emerging Concepts and Applications]]></source>
<year>2018</year>
<page-range>19-36</page-range><publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B73">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shen]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Topic evolution and emerging topic analysis based on open source software]]></article-title>
<source><![CDATA[Journal of Data and Information Science]]></source>
<year>2020</year>
<volume>5</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>126-36</page-range></nlm-citation>
</ref>
<ref id="B74">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shibuya]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Hamm]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pargman]]></surname>
<given-names><![CDATA[T. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mapping HCI research methods for studying social media interaction: A systematic literature review]]></article-title>
<source><![CDATA[Computers in Human Behavior]]></source>
<year>2022</year>
<volume>129</volume>
<page-range>107131</page-range></nlm-citation>
</ref>
<ref id="B75">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Silge]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Training, evaluating, and interpreting topic models]]></source>
<year>2018</year>
</nlm-citation>
</ref>
<ref id="B76">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Singhal]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modern information retrieval: a brief overview]]></article-title>
<source><![CDATA[Bulletin of the IEEE Computer Society Technical Committee on Data Engineering]]></source>
<year>2001</year>
<volume>24</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>35-43</page-range></nlm-citation>
</ref>
<ref id="B77">
<nlm-citation citation-type="book">
<collab>Snowball</collab>
<source><![CDATA[Snowball]]></source>
<year>2021</year>
<publisher-name><![CDATA[Snowball]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B78">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Song]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Heo]]></surname>
<given-names><![CDATA[G. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[S. Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analyzing topic evolution in bioinformatics: Investigation of dynamics of the field with conference data in DBLP]]></article-title>
<source><![CDATA[Scientometrics]]></source>
<year>2014</year>
<volume>101</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>397-428</page-range></nlm-citation>
</ref>
<ref id="B79">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Song]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Qi]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Fu]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Discovering Hierarchical Topic Evolution in Time-Stamped Documents]]></article-title>
<source><![CDATA[Journal of the Association for Information Science and Technology]]></source>
<year>2016</year>
<volume>67</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>915-27</page-range></nlm-citation>
</ref>
<ref id="B80">
<nlm-citation citation-type="">
<collab>Statista</collab>
<collab>We Are Social</collab>
<collab>Hootsuite</collab>
<collab>DataReportal</collab>
<source><![CDATA[Most popular social networks worldwide as of Januay 2022, ranked by number of monthly active users (in millions)]]></source>
<year>2022</year>
</nlm-citation>
</ref>
<ref id="B81">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sueur]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Pelé]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Social network and decision-making in primates: A report on Franco-Japanese research collaborations]]></article-title>
<source><![CDATA[Primates]]></source>
<year>2016</year>
<volume>57</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>327-32</page-range></nlm-citation>
</ref>
<ref id="B82">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Suominen]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Toivanen]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Map of science with topic modeling: Comparison of unsupervised learning and human-assigned subject classification]]></article-title>
<source><![CDATA[Journal of the Association for Information Science and Technolog y]]></source>
<year>2015</year>
<volume>67</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>2464-76</page-range></nlm-citation>
</ref>
<ref id="B83">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Taipale]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Farinosi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The big meaning of small messages: The use of WhatsApp in intergenerational family communication]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[J. Zhou]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Salvendy]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Human aspects of IT for the aged population. Acceptance, Communication and Participation]]></source>
<year>2018</year>
<page-range>532-46</page-range><publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B84">
<nlm-citation citation-type="">
<collab>Tdk Technologies</collab>
<source><![CDATA[Topic modeling explained: LDA to Bayesian Inference]]></source>
<year>2020</year>
</nlm-citation>
</ref>
<ref id="B85">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tuomaala]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Järvelin]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Vakkari]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evolution of library and information science, 1965-2005: Content analysis of journal articles]]></article-title>
<source><![CDATA[Journal of the Association for Information Science and Technology]]></source>
<year>2014</year>
<volume>65</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1446-62</page-range></nlm-citation>
</ref>
<ref id="B86">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[A. D.]]></given-names>
</name>
</person-group>
<source><![CDATA[An architecture for web-enabled engineering applications based on lightweight high-performance CORBA]]></source>
<year>2002</year>
<conf-name><![CDATA[ 6thInternational Enterprise Distributed Object Computing Conference]]></conf-name>
<conf-loc> </conf-loc>
<page-range>249-57</page-range><publisher-name><![CDATA[IEEE Computer Society]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B87">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[McCallum]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Topics over time: A non-Markov continuous-time model of topical trends]]></source>
<year>2006</year>
<conf-name><![CDATA[ 12thACM SIGKDD International Conference on Knowledge Discovery and Data Mining]]></conf-name>
<conf-loc> </conf-loc>
<page-range>424-33</page-range><publisher-name><![CDATA[ACM Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B88">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wasserman]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Faust]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Social network analysis in the social and behavioral sciences]]></article-title>
<source><![CDATA[Social network analysis: Methods and applications]]></source>
<year>1994</year>
<page-range>3-27</page-range><publisher-name><![CDATA[Cambridge University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B89">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Hong]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Topic evolution based on LDA and HMM and its application in stem cell research]]></article-title>
<source><![CDATA[Journal of Information Science]]></source>
<year>2014</year>
<volume>40</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>611-20</page-range></nlm-citation>
</ref>
<ref id="B90">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hao]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[An]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Emerging research topics detection with multiple machine learning models]]></article-title>
<source><![CDATA[Journal of Informetrics]]></source>
<year>2019</year>
<volume>13</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>100983</page-range></nlm-citation>
</ref>
<ref id="B91">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Tang]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[S. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Song]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[H. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Chowdhury]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[A trend analysis of domain-specific literatures with content and co-author network similarity]]></source>
<year>2012</year>
<conf-name><![CDATA[ The 14thInternational Conference on Asia-Pacific Digital Libraries]]></conf-name>
<conf-loc> </conf-loc>
<page-range>73-6</page-range><publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B92">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yanhui]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Lijuan]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Junping]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A comparative study of first and all-author bibliographic coupling analysis based on Scientometrics]]></article-title>
<source><![CDATA[Scientometrics]]></source>
<year>2021</year>
<volume>126</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1125-47</page-range></nlm-citation>
</ref>
<ref id="B93">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yau]]></surname>
<given-names><![CDATA[C. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Porter]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Newman]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Suominen]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clustering scientific documents with topic modeling]]></article-title>
<source><![CDATA[Scientometrics]]></source>
<year>2014</year>
<volume>100</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>767-86</page-range></nlm-citation>
</ref>
<ref id="B94">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yu]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Sukjairungwattana]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bibliometric analyses of social media for educational purposes over four decades]]></article-title>
<source><![CDATA[Frontiers in Psychology]]></source>
<year>2023</year>
<volume>13</volume>
<page-range>1061989</page-range></nlm-citation>
</ref>
<ref id="B95">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zanardo]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Parra]]></surname>
<given-names><![CDATA[G. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Diaz-Aguirre]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Pratt]]></surname>
<given-names><![CDATA[E. A. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Möller]]></surname>
<given-names><![CDATA[L. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Social cohesion and intra-population community structure in southern Australian bottle-nose dolphins]]></article-title>
<source><![CDATA[Behavioral Ecology and Sociobiology]]></source>
<year>2018</year>
<volume>72</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1-13</page-range></nlm-citation>
</ref>
<ref id="B96">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Chan]]></surname>
<given-names><![CDATA[H. C. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Leung]]></surname>
<given-names><![CDATA[V. C. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramasubramanian]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Aracil-Rico]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[PUCS: Personal unified communications over heterogeneous wireless networks]]></source>
<year>2009</year>
<numero>5336353</numero>
<conf-name><![CDATA[ 6thInternational Conference on Broadband Communications, Networks and Systems]]></conf-name>
<conf-date>2009</conf-date>
<conf-loc> </conf-loc>
<issue>5336353</issue>
</nlm-citation>
</ref>
<ref id="B97">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Porter]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Does deep learning help topic extraction? A kernel k-means clustering method with word embedding]]></article-title>
<source><![CDATA[Journal of Informetrics]]></source>
<year>2018</year>
<volume>12</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1099-117</page-range></nlm-citation>
</ref>
<ref id="B98">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Yu]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Topic evolution based on the probabilistic topic model: a review]]></article-title>
<source><![CDATA[Frontiers of Computer Science]]></source>
<year>2017</year>
<volume>11</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>786-802</page-range></nlm-citation>
</ref>
<ref id="B99">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhu]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[A LDA based model for topic evolution: Evidence from Information Science journals]]></source>
<year>2016</year>
<conf-name><![CDATA[ International Conference on Modeling, Simulation and Optimization Technologies and Applications]]></conf-name>
<conf-date>2016</conf-date>
<conf-loc> </conf-loc>
<page-range>49-54</page-range><publisher-name><![CDATA[Atlantis Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B100">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zou]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analyzing research trends on drug safety using topic modeling]]></article-title>
<source><![CDATA[Expert opinion on drug safety]]></source>
<year>2018</year>
<volume>17</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>629-36</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
