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A '''social network ''' is a [[social structure]] made up of a set of [[social]] actors (such as individuals or organizations), sets of [[Dyad (sociology)|dyadic]] ties, and other [[Social relation|social interactions]] between actors. The social network perspective provides a set of methods for analyzing the structure of whole social entities as well as a variety of theories explaining the patterns observed in these structures.<ref name="WF94CH1">{{cite book|last1=Wasserman |first1=Stanley | author-link1= Stanley Wasserman|last2=Faust |first2=Katherine |year=1994 |title=Social Network Analysis: Methods and Applications |isbn=9780521387071 |chapter=Social Network Analysis in the Social and Behavioral Sciences |pages=1–27 |publisher=Cambridge University Press}}</ref> The study of these structures uses [[social network analysis]] to identify local and global patterns, locate influential entities, and examine network dynamics.

A '''social network ''' is a [[social structure]] made up of a set of [[social]] actors (such as individuals or organizations), sets of [[Dyad (sociology)|dyadic]] ties, and other [[Social relation|social interactions]] between actors. The social network perspective provides a set of methods for analyzing the structure of whole social entities as well as a variety of theories explaining the patterns observed in these structures.<ref name="WF94CH1">{{cite book|last1=Wasserman |first1=Stanley | author-link1= Stanley Wasserman|last2=Faust |first2=Katherine |year=1994 |title=Social Network Analysis: Methods and Applications |isbn=9780521387071 |chapter=Social Network Analysis in the Social and Behavioral Sciences |pages=1–27 |publisher=Cambridge University Press}}</ref> The study of these structures uses [[social network analysis]] to identify local and global patterns, locate influential entities, and examine network dynamics.

<font color="#ff8000">社会网络（Social Network）</font>是一种由一组社会行为者（个人或组织）、一组二元关系以及行为者之间的其他社会互动组成的社会结构。社会网络视角为分析整个社会实体的结构提供了一套方法，也为解释在这些结构中观察到的模式提供了各种理论。<ref name="WF94CH1" /> 通常使用<font color="#ff8000">社会网络分析（Social Network Analysis）对这些结构进行研究，</font>以确定本地及全球模式，定位有影响力的实体，并审查网络动态。

社会网络（Social Network）是一种由一组社会行为者（个人或组织）、一组二元关系以及行为者之间的其他社会互动组成的社会结构。社会网络视角为分析整个社会实体的结构提供了一套方法，也为解释在这些结构中观察到的模式提供了各种理论。<ref name="WF94CH1" /> 通常使用社会网络分析（Social Network Analysis），以确定本地及全球模式，定位有影响力的实体，并审查网络动态。

Social networks and the analysis of them is an inherently [[Interdisciplinarity|interdisciplinary]] academic field which emerged from [[social psychology]], [[sociology]], [[statistics]], and [[graph theory]]. [[Georg Simmel]] authored early structural theories in sociology emphasizing the dynamics of triads and "web of group affiliations".<ref name=":0">{{cite book|last1=Scott |first1=W. Richard |last2=Davis |first2=Gerald F. |author-link1= William Richard Scott|author-link2= Gerald F. Davis|title=Organizations and Organizing |chapter=Networks In and Around Organizations |year=2003 |isbn=978-0-13-195893-7 |publisher=Pearson Prentice Hall}}</ref> [[Jacob Moreno]] is credited with developing the first [[sociogram]]s in the 1930s to study interpersonal relationships. These approaches were mathematically formalized in the 1950s and theories and methods of social networks became pervasive in the [[Social science|social and behavioral sciences]] by the 1980s.<ref name="WF94CH1" /><ref name="Freeman History">{{cite book|last=Freeman |first=Linton |year=2004 |publisher=Empirical Press |isbn=978-1-59457-714-7 |title=The Development of Social Network Analysis: A Study in the Sociology of Science}}</ref> [[Social network analysis]] is now one of the major paradigms in contemporary sociology, and is also employed in a number of other social and formal sciences. Together with other [[complex network]]s, it forms part of the nascent field of [[network science]].<ref name=":1">{{cite journal|journal=Science |year=2009 |volume=323 |number=5916 |pages=892–895 |doi=10.1126/science.1165821 |pmid=19213908 |title=Network Analysis in the Social Sciences |first1=Stephen P. |last1=Borgatti |first2=Ajay |last2=Mehra |first3=Daniel J. |last3=Brass |first4=Giuseppe |last4=Labianca|bibcode=2009Sci...323..892B |citeseerx=10.1.1.536.5568 }}</ref><ref name="EK">{{cite book|title=Networks, Crowds, and Markets: Reasoning about a Highly Connected World |first1=David |last1=Easley |first2=Jon |last2=Kleinberg |publisher=Cambridge University Press |year=2010 |chapter=Overview |pages=1–20 |isbn=978-0-521-19533-1}}</ref>

Social networks and the analysis of them is an inherently [[Interdisciplinarity|interdisciplinary]] academic field which emerged from [[social psychology]], [[sociology]], [[statistics]], and [[graph theory]]. [[Georg Simmel]] authored early structural theories in sociology emphasizing the dynamics of triads and "web of group affiliations".<ref name=":0">{{cite book|last1=Scott |first1=W. Richard |last2=Davis |first2=Gerald F. |author-link1= William Richard Scott|author-link2= Gerald F. Davis|title=Organizations and Organizing |chapter=Networks In and Around Organizations |year=2003 |isbn=978-0-13-195893-7 |publisher=Pearson Prentice Hall}}</ref> [[Jacob Moreno]] is credited with developing the first [[sociogram]]s in the 1930s to study interpersonal relationships. These approaches were mathematically formalized in the 1950s and theories and methods of social networks became pervasive in the [[Social science|social and behavioral sciences]] by the 1980s.<ref name="WF94CH1" /><ref name="Freeman History">{{cite book|last=Freeman |first=Linton |year=2004 |publisher=Empirical Press |isbn=978-1-59457-714-7 |title=The Development of Social Network Analysis: A Study in the Sociology of Science}}</ref> [[Social network analysis]] is now one of the major paradigms in contemporary sociology, and is also employed in a number of other social and formal sciences. Together with other [[complex network]]s, it forms part of the nascent field of [[network science]].<ref name=":1">{{cite journal|journal=Science |year=2009 |volume=323 |number=5916 |pages=892–895 |doi=10.1126/science.1165821 |pmid=19213908 |title=Network Analysis in the Social Sciences |first1=Stephen P. |last1=Borgatti |first2=Ajay |last2=Mehra |first3=Daniel J. |last3=Brass |first4=Giuseppe |last4=Labianca|bibcode=2009Sci...323..892B |citeseerx=10.1.1.536.5568 }}</ref><ref name="EK">{{cite book|title=Networks, Crowds, and Markets: Reasoning about a Highly Connected World |first1=David |last1=Easley |first2=Jon |last2=Kleinberg |publisher=Cambridge University Press |year=2010 |chapter=Overview |pages=1–20 |isbn=978-0-521-19533-1}}</ref>

社会网络及其分析是社会心理学、社会学、统计学和图论中内在的跨学科学术领域。格奥尔格·齐美尔（Georg Simmel）是早期社会学结构主义理论的作者，他强调三人群体互动和“群体关系网”的动态性。<ref name=":0" /> 雅各布·莫雷诺（Jacob Moreno）被认为是在20世纪30年代发展了第一份<font color="#ff8000">社交关系图（Sociogram）</font>以研究人际关系的人。这些方法在20世纪50年代得到数学化，到20世纪80年代，社会网络的理论和方法在社会和行为科学中变得普遍。<ref name="WF94CH1" /><ref name="Freeman History" /> 目前，社会网络分析是当代社会学的主要范式之一，也被用于许多其他社会科学及形式科学。它与其他复杂网络一起构成了网络科学新兴领域的一部分。<ref name=":1" /><ref name="EK" />

社会网络及其分析是社会心理学、社会学、统计学和图论中内在的跨学科学术领域。格奥尔格·齐美尔（Georg Simmel）是早期社会学结构主义理论的作者，他强调三人群体互动和“群体关系网”的动态性。<ref name=":0" /> 雅各布·莫雷诺（Jacob Moreno）被认为是在20世纪30年代发展了第一份社交关系图（Sociogram）以研究人际关系的人。这些方法在20世纪50年代得到数学化，到20世纪80年代，社会网络的理论和方法在社会和行为科学中变得普遍。<ref name="WF94CH1" /><ref name="Freeman History" /> 目前，社会网络分析是当代社会学的主要范式之一，也被用于许多其他社会科学及形式科学。它与其他复杂网络一起构成了网络科学新兴领域的一部分。<ref name=":1" /><ref name="EK" />

[[File:Barabasi Albert model.gif|thumb|left|图1：Evolution graph of a social network: [[Barabási–Albert model|Barabási model]].一个社会网络的演化图：巴拉巴西模型。|链接=Special:FilePath/Barabasi_Albert_model.gif]]

[[File:Barabasi Albert model.gif|thumb|left|图1：Evolution graph of a social network: [[Barabási–Albert model|Barabási model]].一个社会网络的演化图：巴拉巴西模型。|链接=Special:FilePath/Barabasi_Albert_model.gif]]