Social NetworksPub Date : 2024-11-16DOI: 10.1016/j.socnet.2024.11.001
Andrea Fronzetti Colladon , Maurizio Naldi
{"title":"Why distinctiveness centrality is distinctive","authors":"Andrea Fronzetti Colladon , Maurizio Naldi","doi":"10.1016/j.socnet.2024.11.001","DOIUrl":"10.1016/j.socnet.2024.11.001","url":null,"abstract":"<div><div>This paper responds to a commentary by Neal (2024) regarding the Distinctiveness centrality metrics introduced by Fronzetti Colladon and Naldi (2020). Distinctiveness centrality offers a novel reinterpretation of degree centrality, particularly emphasizing the significance of direct connections to loosely connected peers within (social) networks. This response paper presents a more comprehensive analysis of the correlation between Distinctiveness and the Beta and Gamma measures. All five Distinctiveness measures are considered, as well as a more meaningful range of the α parameter and different network topologies, distinguishing between weighted and unweighted networks. Findings indicate significant variability in correlations, supporting the viability of Distinctiveness as alternative or complementary metrics within social network analysis. Moreover, the paper presents computational complexity analysis and simplified R code for practical implementation. Encouraging initial findings suggest potential applications in diverse domains, inviting further exploration and comparative analyses.</div></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"81 ","pages":"Pages 1-16"},"PeriodicalIF":2.9,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657377","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}
Social NetworksPub Date : 2024-10-16DOI: 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}
Social NetworksPub Date : 2024-09-10DOI: 10.1016/j.socnet.2024.09.001
Zachary P. Neal
{"title":"A stopping rule for randomly sampling bipartite networks with fixed degree sequences","authors":"Zachary P. Neal","doi":"10.1016/j.socnet.2024.09.001","DOIUrl":"10.1016/j.socnet.2024.09.001","url":null,"abstract":"<div><p>Statistical analysis of bipartite networks frequently requires randomly sampling from the set of all bipartite networks with the same degree sequence as an observed network. Trade algorithms offer an efficient way to generate samples of bipartite networks by incrementally ‘trading’ the positions of some of their edges. However, it is difficult to know how many such trades are required to ensure that the sample is random. I propose a stopping rule that focuses on the distance between sampled networks and the observed network, and stops performing trades when this distribution stabilizes. Analyses demonstrate that, for over 650 different degree sequences, using this stopping rule ensures a random sample with a high probability, and that it is practical for use in empirical applications.</p></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"80 ","pages":"Pages 59-64"},"PeriodicalIF":2.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0378873324000583/pdfft?md5=22656573e4c61565c180edcf70d10157&pid=1-s2.0-S0378873324000583-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142162890","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}
Social NetworksPub Date : 2024-09-09DOI: 10.1016/j.socnet.2024.08.007
C. Broccatelli , P. Nixon , P. Moss , S. Baggio , A. Young , D. Newcomb
{"title":"Multilevel integrated healthcare: The evaluation of Project ECHO® networks to integrate children’s healthcare in Australia","authors":"C. Broccatelli , P. Nixon , P. Moss , S. Baggio , A. Young , D. Newcomb","doi":"10.1016/j.socnet.2024.08.007","DOIUrl":"10.1016/j.socnet.2024.08.007","url":null,"abstract":"<div><p>The present empirical study aims to explore medical knowledge sharing in the Australian healthcare context, aiming to broadly evaluate the potential impact of Project ECHO®, an online mentoring and networking health program. We focus on health-related knowledge sharing practices among the network of professionals through formal and informal channels, and across different health and non-health sectors and organisational systems. Studying knowledge transmission among professional networks is essential for optimizing healthcare delivery, promoting innovation, and providing insights on improvement of patient experiences within the healthcare system. We utilize a multilevel approach to shape our data collection strategy. Employing network measures and Multilevel Exponential Random Graph Models, we aim to explore how advice and knowledge sharing behaviours among healthcare professionals and their institutions are interdependently connected. Then, we incorporate network generated results within an evaluation framework for establishing some aspects of the efficiency of the ECHO program along four pillars: <em>Acceptability</em>, <em>Capability</em>, <em>Reachability</em>, and <em>Integration</em>. Our investigation found that among ECHO members, hierarchy is less pronounced compared to across levels and organizations, with certain individuals emerging as central in advice-sharing. The multilevel network perspective showed complex, informal patterns of knowledge and information sharing, including inter-organizational hierarchy, role and sector homophily, brokerage roles with popularity across health organizations, and connectivity through knowledge-sharing in cross-level small group clusters.</p></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"80 ","pages":"Pages 44-58"},"PeriodicalIF":2.9,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0378873324000571/pdfft?md5=32414cf56b2f664ab7030fc6a513dfc4&pid=1-s2.0-S0378873324000571-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142162877","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}
Social NetworksPub Date : 2024-08-30DOI: 10.1016/j.socnet.2024.08.006
Axel Browne , David Butts , Edgar Jaramillo-Rodriguez , Nidhi Parikh , Geoffrey Fairchild , Zach Needell , Cristian Poliziani , Tom Wenzel , Timothy C. Germann , Sara Del Valle
{"title":"Corrigendum to “Evaluating disease surveillance strategies for early outbreak detection in contact networks with varying community structure” [Soc. Netw. 79 (2024) 122–132]","authors":"Axel Browne , David Butts , Edgar Jaramillo-Rodriguez , Nidhi Parikh , Geoffrey Fairchild , Zach Needell , Cristian Poliziani , Tom Wenzel , Timothy C. Germann , Sara Del Valle","doi":"10.1016/j.socnet.2024.08.006","DOIUrl":"10.1016/j.socnet.2024.08.006","url":null,"abstract":"","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"80 ","pages":"Page 43"},"PeriodicalIF":2.9,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S037887332400056X/pdfft?md5=fd22c09e9f43ef134b630a4b8f3a5023&pid=1-s2.0-S037887332400056X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142098644","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}
Social NetworksPub Date : 2024-08-27DOI: 10.1016/j.socnet.2024.08.005
Cristina Espinosa da Silva , Heather A. Pines , Thomas L. Patterson , Stephanie Brodine , Richard S. Garfein , Robert E. Booth , Eileen V. Pitpitan
{"title":"The role of network communication in mediating the effect of a social network intervention on HIV seroconversion among people who inject drugs in Ukraine","authors":"Cristina Espinosa da Silva , Heather A. Pines , Thomas L. Patterson , Stephanie Brodine , Richard S. Garfein , Robert E. Booth , Eileen V. Pitpitan","doi":"10.1016/j.socnet.2024.08.005","DOIUrl":"10.1016/j.socnet.2024.08.005","url":null,"abstract":"<div><h3>Background</h3><p>We examined the role of network communication about HIV-related topics in mediating the efficacy of a social network intervention on HIV seroconversion among people who inject drugs (PWID) in Ukraine, where Eastern Europe’s second-largest HIV epidemic is concentrated among PWID.</p></div><div><h3>Methods</h3><p>We used randomized controlled trial data from 1200 HIV-negative PWID (Ukraine; 2010–2012) in an inverse-odds weighted analysis to examine mediation by network communication.</p></div><div><h3>Results</h3><p>Network communication mediated 24 % (95 % CI= 19.22–29.38) of the intervention’s effect.</p></div><div><h3>Conclusions</h3><p>Integrating training to support network communication about additional HIV prevention resources could enhance the impact of social network HIV prevention interventions among PWID.</p></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"80 ","pages":"Pages 36-42"},"PeriodicalIF":2.9,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0378873324000479/pdfft?md5=5a33d2730517953ce06e20c2549ba34e&pid=1-s2.0-S0378873324000479-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142083366","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}
Social NetworksPub Date : 2024-08-16DOI: 10.1016/j.socnet.2024.08.003
Nick Wuestenenk , Tom Nijs , Tobias H. Stark , Frank van Tubergen , Naomi Ellemers
{"title":"The interplay of misperceptions and willingness to share opinions in full classroom networks: The case of opinions towards homosexuality","authors":"Nick Wuestenenk , Tom Nijs , Tobias H. Stark , Frank van Tubergen , Naomi Ellemers","doi":"10.1016/j.socnet.2024.08.003","DOIUrl":"10.1016/j.socnet.2024.08.003","url":null,"abstract":"<div><p>Social norms influence homophobic behavior, yet these norms are often misperceived. We study the extent to which friendship ties and group memberships are related to misperceptions of opinions towards homosexuality, and how these misperceptions are sustained in social networks through opinion sharing. We find that misperceptions lead individuals to be less willing to share their opinions with ethno-religious ingroup members, non-friends or with individuals whom they perceive to hold different opinions. Although differences observed in the context of this study are relatively small, they may add up over time. These results offer scope for interventions that try to reduce norm misperceptions between groups - as a way to stimulate social change towards a more tolerant society.</p></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"80 ","pages":"Pages 25-35"},"PeriodicalIF":2.9,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0378873324000467/pdfft?md5=9f0ecdc3473c5edb29055b380c6ba8cc&pid=1-s2.0-S0378873324000467-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141993647","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}
Social NetworksPub Date : 2024-08-14DOI: 10.1016/j.socnet.2024.08.004
Shu-Mei Lai , Tso-Jung Yen , Ming-Yi Chang , Yang-chih Fu , Wei-Chung Liu
{"title":"Predicting network members from partial contact records on social media: A machine learning approach","authors":"Shu-Mei Lai , Tso-Jung Yen , Ming-Yi Chang , Yang-chih Fu , Wei-Chung Liu","doi":"10.1016/j.socnet.2024.08.004","DOIUrl":"10.1016/j.socnet.2024.08.004","url":null,"abstract":"<div><p>Surveys conducted on social groups often generate incomplete information due to imperfect response rates. Drawing on Facebook data from a nationally representative sample of graduating college students in Taiwan, we examined the extent to which partial contact records predict which Facebook users belong to a specific class. We first used data from classes with low to middle response rates to train a model for classmate prediction. Based on data from classes with high or perfect response rates, we simulated data by using four different sampling methods with various response rates, and applied the trained model on simulated data to classmate prediction. With a minimal response rate of 40 percent, we achieved an accuracy rate of 90 percent and a true positive rate of 86 percent. Chronological order sampling had the best prediction performance, followed closely by popularity sampling, then by random sampling, and lastly by unpopularity sampling.</p></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"80 ","pages":"Pages 10-24"},"PeriodicalIF":2.9,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0378873324000455/pdfft?md5=cc4c9fafb61af2fdbf03825448a7f086&pid=1-s2.0-S0378873324000455-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141985588","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}
Social NetworksPub Date : 2024-08-14DOI: 10.1016/j.socnet.2024.08.002
Dmitry Gromov
{"title":"Social balance-based centrality measure for directed signed networks","authors":"Dmitry Gromov","doi":"10.1016/j.socnet.2024.08.002","DOIUrl":"10.1016/j.socnet.2024.08.002","url":null,"abstract":"<div><p>We suggest a novel approach to determining the centrality measures for directed signed networks, based on the notion of social balance. We postulate that along with the existing positive connections, the structure of positive and negative connections can be used to determine potential secondary connections, respectively, weak social ties between pairs of individuals who are, e.g., either friends with the same person or under threat from the same person. This kind of connection agrees perfectly with the theory of social balance. Given the structure of primary and secondary connections, the centrality is measured using an eigenvector-based scheme. The suggested approach is applied to the classical example of the social network of monks in a monastery, and the results show a good agreement with the available ground truth.</p></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"80 ","pages":"Pages 1-9"},"PeriodicalIF":2.9,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0378873324000443/pdfft?md5=8bd0ef9ba2d5ccf0d065cb4c7c7b2690&pid=1-s2.0-S0378873324000443-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141985587","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}
Social NetworksPub Date : 2024-08-07DOI: 10.1016/j.socnet.2024.08.001
L.E.A. Braden , Ju Hyun Park , Jay Lee
{"title":"Symbolic association networks: A case study of orchestral programming’s effect on the reputation of composers","authors":"L.E.A. Braden , Ju Hyun Park , Jay Lee","doi":"10.1016/j.socnet.2024.08.001","DOIUrl":"10.1016/j.socnet.2024.08.001","url":null,"abstract":"<div><p>A type of symbolic association network for the development of reputation is described and tested. Associations between people in these networks are not based on individual interaction, but rather are created by “reputational entrepreneurs” based on perceived symbolic association between people. We argue the intent of this type of connection is to add to the reputational information about those connected and we test whether a network of such associations influence cultural recognition. To do this, we use dyadic connections between classical music composers created by conductors for orchestra performance and determine whether a composer’s symbolic association network (SAN) aids recognition in publications. We find SANs to have a significant impact on the extent of reputational recognition, even when holding a composer’s individual status achievements constant. Composers with a large symbolic association network and those who bridge unconnected composers tend to receive more recognition. We discuss the influence of symbolic association networks on perception of reputational significance. We suggest SANs may advance research in reputation and culture particularly when considering actors whose reputation is active beyond their work or lifetime, such as artists, writers, musicians, and historical figures.</p></div>","PeriodicalId":48353,"journal":{"name":"Social Networks","volume":"79 ","pages":"Pages 198-208"},"PeriodicalIF":2.9,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0378873324000431/pdfft?md5=272aa0fc9439eae463d339ace55e0d19&pid=1-s2.0-S0378873324000431-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141962908","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}