Social Networks最新文献_第5页

Identifying stages in the lifespan of dynamic groups 确定动态群体生命周期的各个阶段

IF 2.9 2区社会学

Social Networks Pub Date : 2025-03-18 DOI: 10.1016/j.socnet.2025.03.002

Raji Ghawi, Jürgen Pfeffer

{"title":"Identifying stages in the lifespan of dynamic groups","authors":"Raji Ghawi, Jürgen Pfeffer","doi":"10.1016/j.socnet.2025.03.002","DOIUrl":"10.1016/j.socnet.2025.03.002","url":null,"abstract":"<div><div>Dynamic groups, characterized by their evolving memberships, present unique challenges in understanding group behavior and performance. Traditional models often overlook the fluidity of group composition, focusing instead on static memberships. In this paper, we introduce a comprehensive framework to empirically measure and analyze changes in group composition over time, offering new insights into group dynamics. We propose key metrics, including <em>Growth Rate</em>, <em>Churn</em>, and <em>Revitalization</em>, that quantify the movement of members in and out of groups. Further, we define distinct stages of group development, such as organic growth, dynamic growth, fluid stability, and erosion, which capture the evolving nature of group composition. A data-driven method is presented to systematically identify these stages across a group’s lifespan. As a case study, we apply our methodology to a dataset from the massively multiplayer online game Travian, involving nearly 900 alliances and over 17,000 players, revealing common patterns of group evolution and frequent transitions between growth and decline. Our findings underscore the value of understanding group stages, offering practical implications for managing dynamic groups in various organizational settings.</div></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"82 ","pages":"Pages 39-54"},"PeriodicalIF":2.9,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Friends forever? Correlates of high school friendship (in)stability from adolescence to young adulthood 永远的朋友？从青春期到青年期高中友谊（不）稳定的相关因素

IF 2.9 2区社会学

Social Networks Pub Date : 2025-03-17 DOI: 10.1016/j.socnet.2025.02.002

Cassie McMillan , Kaley A. Jones , Wade C. Jacobsen , Nayan G. Ramirez , Mark E. Feinberg

{"title":"Friends forever? Correlates of high school friendship (in)stability from adolescence to young adulthood","authors":"Cassie McMillan , Kaley A. Jones , Wade C. Jacobsen , Nayan G. Ramirez , Mark E. Feinberg","doi":"10.1016/j.socnet.2025.02.002","DOIUrl":"10.1016/j.socnet.2025.02.002","url":null,"abstract":"<div><div>Although friendship instability is common throughout adolescence and young adulthood, experiencing high rates of relational turnover is associated with negative health outcomes and lower educational attainment. Currently, we know little about whether the rates and correlates of friendship instability change during the transition to young adulthood, even though this period is characterized by significant life events such as high school completion. Using new and unique network data from the PROSPER study, we address this gap by following the trajectories of roughly 2000 respondents’ close friendships from the start of high school to one year after graduation. Results suggest that friendship dissolution is frequent after high school, with only 35 % of friendships reported in respondents’ senior years of high school remaining intact one year later. Similar histories of substance use were more impactful in inspiring friendship persistence after high school than during adolescence, while the role of shared sociodemographic characteristics did not vary across developmental periods. After high school, young people were also more likely to maintain friendships with peers who previously reciprocated these relationships and reported friends in common. Our findings underscore how friendship dynamics change at the start of young adulthood in ways that carry implications for behavioral trajectories and life outcomes.</div></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"82 ","pages":"Pages 27-38"},"PeriodicalIF":2.9,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating the dynamics of yakuza violence using multilevel network analysis 利用多层次网络分析调查黑帮暴力的动态

IF 2.9 2区社会学

Social Networks Pub Date : 2025-03-11 DOI: 10.1016/j.socnet.2025.03.001

Niles Breuer, Martina Baradel

引用次数: 0

From warnings to bans: The role of social networks in the severity of sanctions 从警告到禁令：社交网络在严厉制裁中的作用

IF 2.9 2区社会学

Social Networks Pub Date : 2025-02-14 DOI: 10.1016/j.socnet.2025.02.001

Mélina Girard, David Décary-Hétu

引用次数: 0

Digital communication and tie formation amongst freshmen students during and after the pandemic 大流行期间和之后新生之间的数字通信和关系形成

IF 2.9 2区社会学

Social Networks Pub Date : 2025-01-10 DOI: 10.1016/j.socnet.2024.12.002

Judith Gilsbach , Johannes Stauder

{"title":"Digital communication and tie formation amongst freshmen students during and after the pandemic","authors":"Judith Gilsbach , Johannes Stauder","doi":"10.1016/j.socnet.2024.12.002","DOIUrl":"10.1016/j.socnet.2024.12.002","url":null,"abstract":"<div><div>This study examines the network evolution among sociology freshmen students during and after the Covid-19 pandemic as a natural experiment on the impacts of digitalised communication. The first surveyed cohort (N = 42) began their studies under lockdown in October 2020, when all classes were taught online (lockdown cohort). The second cohort (N = 66) started one year later when the lockdown measures were released partly and most classes were taught in a hybrid mode (hybrid cohort). We use Stochastic Actor-Oriented Models (SAOM) for model estimation; missing relations due to actor non-response are multiply imputed using SAOM-based procedures. The findings show (1) that the network among students of the lockdown cohort developed slower and reached a lower density at the end of the first term, (2) that the probability of triadic closure was significantly lower in the lockdown than in the hybrid cohort and (3) that in both cohorts, students have a stronger tendency to get acquainted if they share classes, but (4) that shared classes were more important for tie formation during lockdown. We conclude that digital communication will mitigate the opportunities to make new acquaintances and friends.</div></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"81 ","pages":"Pages 53-66"},"PeriodicalIF":2.9,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Impact of methods for reducing respondent burden on personal network structural measures” [Soc. Netw. 29 (2007) 300–315] “减轻被访者负担的方法对个人网络结构措施的影响”的更正[Soc]。Netw. 29 (2007) 300-315]

IF 2.9 2区社会学

Social Networks Pub Date : 2024-12-19 DOI: 10.1016/j.socnet.2024.12.001

Christopher McCarty , Peter D. Killworth

引用次数: 0

Revising the Borgatti-Everett core-periphery model: Inter-categorical density blocks and partially connected cores 对Borgatti-Everett核心-外围模型的修正：分类间密度块和部分连通核心

IF 2.9 2区社会学

Social Networks Pub Date : 2024-12-16 DOI: 10.1016/j.socnet.2024.11.002

José Luis Estévez , Carl Nordlund

引用次数: 0

Estimating policy effects in a social network with independent set sampling 用独立集抽样估计社会网络中的策略效果

IF 2.9 2区社会学

Social Networks Pub Date : 2024-11-28 DOI: 10.1016/j.socnet.2024.10.002

Eugene T.Y. Ang , Prasanta Bhattacharya , Andrew E.B. Lim

{"title":"Estimating policy effects in a social network with independent set sampling","authors":"Eugene T.Y. Ang , Prasanta Bhattacharya , Andrew E.B. Lim","doi":"10.1016/j.socnet.2024.10.002","DOIUrl":"10.1016/j.socnet.2024.10.002","url":null,"abstract":"<div><div>Evaluating the impact of policy interventions on respondents who are embedded in a social network is often challenging due to the presence of network interference within the treatment groups, as well as between treatment and non-treatment groups. In this paper, we propose a novel empirical strategy that combines network sampling based on the identification of independent sets with a stochastic actor-oriented model (SAOM) to infer the direct and net effects of a policy. By assigning respondents from an independent set to the treatment, we are able to block direct spillover of the treatment among the treated respondents for an extended period of time, during which the direct effect of the treatment can be isolated from the associated network interference. We empirically demonstrate this using a simulation-based evaluation of a fictitious policy implementation using both real-life and generated networks, and use a counterfactual approach to estimate the treatment effect of the policy. Our results highlight the effectiveness of our proposed empirical strategy, and notably, the role of network sampling techniques in influencing the evaluation of policy effects. The findings from this study have the potential to help researchers and policymakers with planning, designing, and anticipating policy responses in a networked society.</div></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"81 ","pages":"Pages 17-30"},"PeriodicalIF":2.9,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Why distinctiveness centrality is distinctive 特色中心性为何与众不同

IF 2.9 2区社会学

Social Networks Pub Date : 2024-11-16 DOI: 10.1016/j.socnet.2024.11.001

Andrea Fronzetti Colladon , Maurizio Naldi

引用次数: 0

How many friends do youth nominate? A meta-analysis of gender, age, and geographic differences in average outdegree centrality 年轻人提名了多少朋友？平均离散度中心性的性别、年龄和地域差异荟萃分析

IF 2.9 2区社会学

Social Networks Pub Date : 2024-10-16 DOI: 10.1016/j.socnet.2024.10.001

Jennifer Watling Neal

{"title":"How many friends do youth nominate? A meta-analysis of gender, age, and geographic differences in average outdegree centrality","authors":"Jennifer Watling Neal","doi":"10.1016/j.socnet.2024.10.001","DOIUrl":"10.1016/j.socnet.2024.10.001","url":null,"abstract":"<div><div>This pre-registered meta-analysis uses multi-level random effects models to give precise estimates of average outbound best friend and friend nominations – average outdegree centrality – in youth friendship networks and examines whether average outdegree centrality varies by age, gender, and geographic region. Pooling 196 estimates reported in 51 articles reflecting 37 datasets from whole network studies, youth nominated 4.80 best friends on average (<span><math><mrow><mi>S</mi><mi>E</mi><mo>=</mo><mo>.</mo><mn>37</mn></mrow></math></span>). Additionally, pooling 64 estimates reported in 20 articles reflecting 18 datasets from whole network studies, youth nominated 6.05 friends on average (<span><math><mrow><mi>S</mi><mi>E</mi><mo>=</mo><mo>.</mo><mn>60</mn></mrow></math></span>). Early adolescents (10–14 years) nominated significantly more best friends than adolescents (15–18 years). However, there were no significant differences in average outdegree centrality by the gender or geographic region of the sample. Findings provide future research directions for understanding youth socializing environments and implications for peer interventions.</div></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"80 ","pages":"Pages 65-75"},"PeriodicalIF":2.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0