The semantic network and social network analyses of Vancl's micro-blog

2011 ◽  
Author(s):  
V. Rong ◽  
L. Jiang
Keyword(s):  
Social Network ◽  
Semantic Network ◽  
Network Analyses ◽  
Social Network Analyses

scholarly journals Experimental evidence for delayed contingent cooperation among wild dwarf mongooses

2018 ◽  
Vol 115 (24) ◽  
pp. 6255-6260 ◽  
Author(s):  
Julie M. Kern ◽  
Andrew N. Radford
Keyword(s):  
Social Network ◽  
Experimental Evidence ◽  
Causal Link ◽  
Temporal Delay ◽  
Biological Markets ◽  
Network Analyses ◽  
Group Members ◽  
Access To Food ◽  
Social Network Analyses ◽  
Social Network Position

Many animals participate in biological markets, with strong evidence existing for immediate cooperative trades. In particular, grooming is often exchanged for itself or other commodities, such as coalitionary support or access to food and mates. More contentious is the possibility that nonhuman animals can rely on memories of recent events, providing contingent cooperation even when there is a temporal delay between two cooperative acts. Here we provide experimental evidence of delayed cross-commodity grooming exchange in wild dwarf mongooses (Helogale parvula). First, we use natural observations and social-network analyses to demonstrate a positive link between grooming and sentinel behavior (acting as a raised guard). Group members who contributed more to sentinel behavior received more grooming and had a better social-network position. We then used a field-based playback experiment to test a causal link between contributions to sentinel behavior and grooming received later in the day. During 3-h trial sessions, the perceived sentinel contributions of a focal individual were either up-regulated (playback of its surveillance calls, which are given naturally during sentinel bouts) or unmanipulated (playback of its foraging close calls as a control). On returning to the sleeping refuge at the end of the day, focal individuals received more grooming following surveillance-call playback than control-call playback and more grooming than a matched individual whose sentinel contributions were not up-regulated. We believe our study therefore provides experimental evidence of delayed contingent cooperation in a wild nonprimate species.

scholarly journals Comment on "Why and When 'Flawed' Social Network Analyses Still Yield Valid Tests of no Contagion"

2012 ◽  
Vol 3 (1) ◽  
Author(s):  
Cosma Rohilla Shalizi
Keyword(s):  
Social Network ◽  
Observational Data ◽  
Network Analyses ◽  
Social Network Analyses

VanderWeele et al.'s paper is a useful contribution to the on-going scientific conversation about the detection of contagion from purely observational data. It is especially helpful as a corrective to some of the more extreme statements of Lyons (2011). Unfortunately, this paper, too, goes too far in some places, and so needs some correction itself.

scholarly journals Predicting behavior change from persuasive messages using neural representational similarity and social network analyses

NeuroImage ◽  
2017 ◽  
Vol 157 ◽  
pp. 118-128 ◽  
Author(s):  
Teresa K. Pegors ◽  
Steven Tompson ◽  
Matthew Brook O’Donnell ◽  
Emily B. Falk
Keyword(s):  
Social Network ◽  
Behavior Change ◽  
Persuasive Messages ◽  
Network Analyses ◽  
Predicting Behavior ◽  
Social Network Analyses

scholarly journals How does individual variation in sociality influence fitness in prairie voles?

2019 ◽  
Author(s):  
Anne C. Sabol ◽  
Connor T. Lambert ◽  
Brian Keane ◽  
Nancy G. Solomon ◽  
Ben Dantzer
Keyword(s):  
Social Network ◽  
Social Behavior ◽  
Individual Variation ◽  
Mating Success ◽  
Social Connections ◽  
Prairie Voles ◽  
Network Analyses ◽  
Fitness Consequences ◽  
Opposite Sex ◽  
Social Network Analyses

AbstractComparative studies aid in our understanding of specific conditions favoring the initial evolution of different types of social behaviors, yet there is much unexplained intraspecific variation in the expression of social behavior that comparative studies have not yet addressed. The proximate causes of this individual variation in social behavior within a species have been examined in some species but its fitness consequences have been less frequently investigated. In this study, we quantified the fitness consequences of variation in the sociality of prairie voles (Microtus ochrogaster). We characterized sociality of voles in semi-natural enclosures using an automated behavioral tracking system paired with social network analyses to quantify the degree of spatial and temporal co-occurrence of different voles. We then assessed the relationship between sociality with mating success (number of different conspecifics with which an individual produced offspring) and reproductive success (total number of offspring surviving to first capture). We measured the number of social connections each individual had with all voles and only with opposite-sex voles by calculating unweighted degree through social network analyses. Both female and male voles varied in the number of social connections they had with all conspecifics and with opposite-sex conspecifics. Voles with an intermediate number of social connections with voles of both sexes had higher mating success overall. In our analyses that considered all social connections with voles of both sexes, voles with an intermediate number of social connections produced more offspring. Males with a very high or low number of social connections also had the lowest average body mass. Overall, our results suggest some limit on the fitness benefits of sociality. Although there was substantial individual-variation in our measure of vole social behavior, intermediate levels of social connections may be most favorable.

scholarly journals The Ambivalence of Cultural Homophily: Field Positions, Semantic Similarities, and Social Network Ties in Creative Collectives

2020 ◽  
Author(s):  
Nikita Basov
Keyword(s):  
Social Network ◽  
Cultural Production ◽  
Semantic Network ◽  
Local Context ◽  
Network Ties ◽  
Network Analyses ◽  
Cultural Orientations ◽  
Different Types ◽  
Social Network Ties ◽  
The One

This paper utilizes a mixture of qualitative, formal, and statistical socio-semantic network analyses to examine how cultural homophily works when field logic meets practice. On the one hand, because individuals in similar field positions are also imposed with similar cultural orientations, cultural homophily reproduces ‘objective’ field structure in intersubjective social network ties. On the other hand, fields are operative in practice and to accomplish pragmatic goals individuals who occupy different field positions often join in groups, creatively reinterpret the field-imposed cultural orientations, and produce cultural similarities alternative to the position-specific ones. Drawing on these emergent similarities, the cultural homophily mechanism might stimulate social network ties between members who occupy not the same but different field positions, thus contesting fields. I examine this ambivalent role of cultural homophily in two creative collectives, each embracing members positioned closer to the opposite poles of the field of cultural production. I find different types of cultural similarities to affect different types of social network ties within and between the field positions: Similarity of vocabularies stimulates friendship and collaboration ties within positions, thus reproducing the field, while affiliation with the same cultural structures stimulates collaboration ties between positions, thus contesting the field. The latter effect is visible under statistical analysis of ethnographic data, but easy to oversee in qualitative analysis of texts because informants tend to flag conformity to their positions in their explicit statements. This highlights the importance of mixed socio-semantic network analysis, both sensitive to the local context and capable of unveiling the mechanisms underlying the interplay between the cultural and the social.

scholarly journals Why and When "Flawed" Social Network Analyses Still Yield Valid Tests of no Contagion

2012 ◽  
Vol 3 (1) ◽  
Author(s):  
Tyler J. VanderWeele ◽  
Elizabeth L. Ogburn ◽  
Eric J. Tchetgen Tchetgen
Keyword(s):  
Social Network ◽  
Social Influence ◽  
Confidence Intervals ◽  
Social Contagion ◽  
Statistical Dependence ◽  
Network Analyses ◽  
The Social ◽  
Social Network Analyses

Lyons (2011) offered several critiques of the social network analyses of Christakis and Fowler, including issues of confounding, model inconsistency, and statistical dependence in networks. Here we show that in some settings, social network analyses of the type employed by Christakis and Fowler will still yield valid tests of the null of no social contagion, even though estimates and confidence intervals may not be valid. In particular, we show that if the alter's state is lagged by an additional period, then under the null of no contagion, the problems of model inconsistency and statistical dependence effectively disappear which allow for testing for contagion. Our results clarify the setting in which even "flawed" social network analyses are still useful for assessing social contagion and social influence.

Tweeting about abusive comments and misogyny in South Korea following the suicide of Sulli, a female K-pop star: Social and semantic network analyses

2021 ◽  
Author(s):  
Sejung Park ◽  
Jiwon Kim
Keyword(s):  
Social Network ◽  
Network Analysis ◽  
South Korea ◽  
Hate Speech ◽  
Social Issues ◽  
Semantic Network ◽  
News Coverage ◽  
Public Discussion ◽  
The Public ◽  
Network Analyses

This study examined the development of the public discussion on Twitter about the abusive comments specific to misogynistic discourse after the suicide of Sulli, a female celebrity in South Korea. Both the pattern of social networking between the users and the semantic representations of user responses were analyzed from a social network perspective using a large-scale Twitter dataset. A total of 37,101 tweets generated by 25,258 users were collected and analyzed. The findings of the network analysis suggest that hubs and authorities on Twitter were closely connected to each other and contributed to promoting the public discussion about abusive comments in response to her death. The results of the semantic network analysis suggested that her death, presumably due in part to continuous hateful comments from trolls, evoked an open discussion about the deeply rooted abusive comments and misogyny that are prevalent in South Korea. Users perceived that sensational news coverage about celebrities and unethical journalistic practices led to abusive comments and her death. The users shared their observations that gendered hate speech contributed to Sulli’s bullying. Dominant words that referred to Sulli’s sexual harassment show the ways in which haters had bullied her, as well as the criticism of online harassment. The results imply that the issue of online misogyny was closely associated with abusive comments in the public consciousness. This study verified the role of celebrities in increasing awareness about social issues and word-of-mouth dissemination even after a death. This study also offers methodological insights by demonstrating how social network analysis can be used to analyze public discussion using big data.

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