A Tag-Based Network Evolution Mechanism for Online Communities

2007 ◽  
Author(s):  
Caihong Sun ◽  
Yan Xu ◽  
Xiaoping Yang
Keyword(s):  
Online Communities ◽  
Network Evolution ◽  
Evolution Mechanism

A transportation network evolution model based on link prediction

2021 ◽  
Author(s):  
Shuang Gu ◽  
Keping Li ◽  
Yan Liang ◽  
Dongyang Yan
Keyword(s):  
Network Structure ◽  
Link Prediction ◽  
Transportation Networks ◽  
Network Evolution ◽  
Evolution Model ◽  
Civil Aviation ◽  
Node Degree ◽  
Network Efficiency ◽  
Evolution Mechanism ◽  
Proposed Model

An effective and reliable evolution model can provide strong support for the planning and design of transportation networks. As a network evolution mechanism, link prediction plays an important role in the expansion of transportation networks. Most of the previous algorithms mainly took node degree or common neighbors into account in calculating link probability between two nodes, and the structure characteristics which can enhance global network efficiency are rarely considered. To address these issues, we propose a new evolution mechanism of transportation networks from the aspect of link prediction. Specifically, node degree, distance, path, expected network structure, relevance, population and GDP are comprehensively considered according to the characteristics and requirements of the transportation networks. Numerical experiments are done with China’s high-speed railway network, China’s highway network and China’s inland civil aviation network. We compare receiver operating characteristic curve and network efficiency in different models and explore the degree and hubs of networks generated by the proposed model. The results show that the proposed model has better prediction performance and can effectively optimize the network structure compared with other baseline link prediction methods.

scholarly journals Uncovering the network evolution mechanism by link prediction

2011 ◽  
Vol 41 (7) ◽  
pp. 816-823 ◽  
Author(s):  
Tao ZHOU ◽  
LinYuan L ◽  
HongKun LIU
Keyword(s):  
Link Prediction ◽  
Network Evolution ◽  
Evolution Mechanism

Nurturing Online Communities: An Empirical Investigation

MIS Quarterly ◽  
2019 ◽  
Vol 43 (2) ◽  
pp. 425-452 ◽  
Author(s):  
Sofia Bapna ◽  
◽  
Mary J. Benner ◽  
Liangfei Qiu ◽  
◽  
...  
Keyword(s):  
Online Communities ◽  
Empirical Investigation

Engaging Voluntary Contributions in Online Communities: A Hidden Markov Model

MIS Quarterly ◽  
2018 ◽  
Vol 42 (1) ◽  
pp. 83-100 ◽  
Author(s):  
Wei Chen ◽  
◽  
Xiahua Wei ◽  
Kevin Xiaoguo Zhu ◽  
◽  
...  
Keyword(s):  
Markov Model ◽  
Hidden Markov Model ◽  
Online Communities ◽  
Hidden Markov ◽  
Voluntary Contributions
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