Improved community model for social networks based on social mobility

2015 ◽  
Vol 26 (02) ◽  
pp. 1550012
Author(s):  
Zhe-Ming Lu ◽  
Zhen Wu ◽  
Hao Luo ◽  
Hao-Xian Wang
Keyword(s):  
Social Networks ◽  
Social Mobility ◽  
Turnover Rate ◽  
Small World ◽  
Community Size ◽  
Community Model ◽  
Proposed Model ◽  
Small World Property ◽  
The Relationship ◽  
Group Distribution

This paper proposes an improved community model for social networks based on social mobility. The relationship between the group distribution and the community size is investigated in terms of communication rate and turnover rate. The degree distributions, clustering coefficients, average distances and diameters of networks are analyzed. Experimental results demonstrate that the proposed model possesses the small-world property and can reproduce social networks effectively and efficiently.

A NEW DYNAMIC COMMUNITY MODEL FOR SOCIAL NETWORKS

2014 ◽  
Vol 25 (02) ◽  
pp. 1350088 ◽  
Author(s):  
ZHE-MING LU ◽  
ZHEN WU ◽  
SHI-ZE GUO ◽  
ZHE CHEN ◽  
GUANG-HUA SONG
Keyword(s):  
Social Networks ◽  
Average Distance ◽  
Small World ◽  
Clustering Coefficient ◽  
Community Model ◽  
Network Diameter ◽  
Proposed Model ◽  
Small World Property ◽  
Two Parameters ◽  
Dynamic Community

In this paper, based on the phenomenon that individuals join into and jump from the organizations in the society, we propose a dynamic community model to construct social networks. Two parameters are adopted in our model, one is the communication rate Pa that denotes the connection strength in the organization and the other is the turnover rate Pb, that stands for the frequency of jumping among the organizations. Based on simulations, we analyze not only the degree distribution, the clustering coefficient, the average distance and the network diameter but also the group distribution which is closely related to their community structure. Moreover, we discover that the networks generated by the proposed model possess the small-world property and can well reproduce the networks of social contacts.

scholarly journals Models And Mining Of On-Line Social Networks

2021 ◽  
Author(s):  
Yanhua Tian
Keyword(s):  
Social Networks ◽  
Power Law ◽  
Degree Distribution ◽  
Small World ◽  
Spectral Expansion ◽  
On Line ◽  
Simulation Results ◽  
Small World Property ◽  
P Type ◽  
Law Degree

Power law degree distribution, the small world property, and bad spectral expansion are three of the most important properties of On-line Social Networks (OSNs). We sampled YouTube and Wikipedia to investigate OSNs. Our simulation and computational results support the conclusion that OSNs follow a power law degree distribution, have the small world property, and bad spectral expansion. We calculated the diameters and spectral gaps of OSNs samples, and compared these to graphs generated by the GEO-P model. Our simulation results support the Logarithmic Dimension Hypothesis, which conjectures that the dimension of OSNs is m = [log N]. We introduced six GEO-P type models. We ran simulations of these GEO-P-type models, and compared the simulated graphs with real OSN data. Our simulation results suggest that, except for the GEO-P (GnpDeg) model, all our models generate graphs with power law degree distributions, the small world property, and bad spectral expansion.

scholarly journals On M-Polynomials of Dunbar Graphs in Social Networks

Symmetry ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 932 ◽  
Author(s):  
Santanu Acharjee ◽  
Bijit Bora ◽  
Robin I. M. Dunbar
Keyword(s):  
Social Networks ◽  
Graph Theory ◽  
Full Range ◽  
Small World ◽  
Topological Indices ◽  
Topological Invariant ◽  
Chemical Graph ◽  
Structure And Dynamics ◽  
Chemical Graph Theory ◽  
The Relationship

Topological indices describe mathematical invariants of molecules in mathematical chemistry. M-polynomials of chemical graph theory have freedom about the nature of molecular graphs and they play a role as another topological invariant. Social networks can be both cyclic and acyclic in nature. We develop a novel application of M-polynomials, the ( m , n , r ) -agent recruitment graph where n > 1 , to study the relationship between the Dunbar graphs of social networks and the small-world phenomenon. We show that the small-world effects are only possible if everyone uses the full range of their network when selecting steps in the small-world chain. Topological indices may provide valuable insights into the structure and dynamics of social network graphs because they incorporate an important element of the dynamical transitivity of such graphs.

scholarly journals Regional radiomics similarity networks (R2SNs) in the human brain: reproducibility, small-world properties and a biological basis

2020 ◽  
Author(s):  
Kun Zhao ◽  
Qiang Zheng ◽  
Tongtong Che ◽  
Martin Dyrba ◽  
Qiongling Li ◽  
...  
Keyword(s):  
High Reliability ◽  
Intraclass Correlation ◽  
Small World ◽  
Structural Mri ◽  
General Intelligence ◽  
Comprehensive Information ◽  
Magnetic Resonance Imaging Mri ◽  
Small World Property ◽  
The Relationship ◽  
Pearson Correlations

Background: A structural covariance network (SCN) has been used successfully to structural magnetic resonance imaging (MRI) studies. However, most SCNs were constructed by a unitary marker that was insensitive for discriminating different disease phases. The aim of this study was to devise a novel regional radiomics similarity network (R2SN) that could provide more comprehensive information in morphological network analysis. Methods: R2SNs were constructed by computing the Pearson correlations between the radiomics features extracted from any pair of regions for each subject. We further assessed the small-world property of R2SNs using the graph theory method, and we evaluated the reproducibility in different datasets and the reliability of the R2SNs through test-retest analysis. The relationship between the R2SNs and interregional coexpression of enriched genes was also explored, as well as the relationship with general intelligence. Results: R2SNs could be replicated in different datasets, regardless of the use of different feature subsets. R2SNs showed high reliability in the test-retest analysis (intraclass correlation coefficient (ICC)>0.7). In addition, the small-word property (σ>2) and the high correlation between gene expression (R=0.24, P<0.001) and general intelligence were determined for R2SNs. Conclusion: R2SNs provides a novel, reliable, and biologically plausible method to understand human morphological covariance based on structural MRI.

scholarly journals Models And Mining Of On-Line Social Networks

2021 ◽  
Author(s):  
Yanhua Tian
Keyword(s):  
Social Networks ◽  
Power Law ◽  
Degree Distribution ◽  
Small World ◽  
Spectral Expansion ◽  
On Line ◽  
Simulation Results ◽  
Small World Property ◽  
P Type ◽  
Law Degree

Power law degree distribution, the small world property, and bad spectral expansion are three of the most important properties of On-line Social Networks (OSNs). We sampled YouTube and Wikipedia to investigate OSNs. Our simulation and computational results support the conclusion that OSNs follow a power law degree distribution, have the small world property, and bad spectral expansion. We calculated the diameters and spectral gaps of OSNs samples, and compared these to graphs generated by the GEO-P model. Our simulation results support the Logarithmic Dimension Hypothesis, which conjectures that the dimension of OSNs is m = [log N]. We introduced six GEO-P type models. We ran simulations of these GEO-P-type models, and compared the simulated graphs with real OSN data. Our simulation results suggest that, except for the GEO-P (GnpDeg) model, all our models generate graphs with power law degree distributions, the small world property, and bad spectral expansion.

The Influence of Cognitive and Affective Reactions to Feedback on Subsequent Goals

2010 ◽  
Vol 15 (2) ◽  
pp. 121-131 ◽  
Author(s):  
Remus Ilies ◽  
Timothy A. Judge ◽  
David T. Wagner
Keyword(s):  
Performance Feedback ◽  
Business School ◽  
Structural Equation ◽  
Emotional Reactions ◽  
Equation Model ◽  
Proposed Model ◽  
And Performance ◽  
Dispositional Measure ◽  
The Relationship ◽  
Reactions To Feedback

This paper focuses on explaining how individuals set goals on multiple performance episodes, in the context of performance feedback comparing their performance on each episode with their respective goal. The proposed model was tested through a longitudinal study of 493 university students’ actual goals and performance on business school exams. Results of a structural equation model supported the proposed conceptual model in which self-efficacy and emotional reactions to feedback mediate the relationship between feedback and subsequent goals. In addition, as expected, participants’ standing on a dispositional measure of behavioral inhibition influenced the strength of their emotional reactions to negative feedback.

Exploring the Relationship between Oral Health Social Networks, Attitude and Stage of change in Afterschool Staff

2013 ◽  
Author(s):  
Martha Oropeza ◽  
Tom Valente ◽  
Claudio Nigg ◽  
Jimmy Efird ◽  
Mikako Deguchi ◽  
...  
Keyword(s):  
Social Networks ◽  
Oral Health ◽  
Stage Of Change ◽  
The Relationship

Exploring the Relationship Between Oral Health Social Networks, Attitude and Stage of Change in Afterschool Staff

2013 ◽  
Author(s):  
Martha Oropeza ◽  
Thomas W. Valente ◽  
Claudio R. Nigg ◽  
Jimmy Efird ◽  
Mikako Deguchi ◽  
...  
Keyword(s):  
Social Networks ◽  
Oral Health ◽  
Stage Of Change ◽  
The Relationship

THE RELATIONSHIP BETWEEN CAREER DEVELOPMENT, COMPENSATION, JOB SECURITY, WORK ENVIRONMENT AND EMPLOYEE LOYALTY

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Muhammad Faizal Samat ◽  
Muhammad Najmuddin Hamid ◽  
Muhammad Ameer Shafiq Awang@Ali ◽  
Wan Muhammad Iqmal Fazri Wan Juahari ◽  
Khairul Asraf Ghazali ◽  
...  
Keyword(s):  
Career Development ◽  
Work Environment ◽  
Turnover Rate ◽  
Sampling Technique ◽  
Job Security ◽  
Future Research ◽  
Kuala Lumpur ◽  
Employee Loyalty ◽  
Convenience Sampling ◽  
The Relationship

Malaysia has recorded the second highest involuntary turnover rate at 6% and third highest voluntary rate at 6.5% in South East Asia. Employee loyalty becomes critical towards employer. Thus, the purpose of this study was to examine the relationship between career development, compensation, job security, work environment and employee loyalty. In conducting this study, convenience sampling technique has been employed and respondents have been chosen in the area of Kuala Lumpur. Hypothesis were tested using regression analysis by using Smart-PLS. Based on the result, career development, compensation and job security were found to be significant with employee loyalty. However, work environment was found to be not significant with employee loyalty. It is suggested for future research to explore other variables in order to find the factors contributed in employee loyalty. Keywords: Career Development, Compensation, Job Security, Work Environment, Employee Loyalty

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