Title
Self-Training Enhanced: Network Embedding and Overlapping Community Detection With Adversarial Learning
Abstract
Network embedding (NE) aims to encode the relations of vertices into a low-dimensional space. After NE, we can obtain the learned vectors of vertices that preserve the proximity of network structures for subsequent applications, e.g., vertex classification and link prediction. In existing NE models, they usually exploit the skip-gram with a negative sampling method to optimize their objective functions. Generally, this method learns the vertex representation only from the local connectivity of vertices (i.e., neighbors). However, there is a larger scope of vertex connectivity in real-world scenarios: a vertex may have multifaceted aspects and should belong to overlapping communities. Taking a social network as the overlapping example, a user may subscribe to the channels of politics, economy, and sports simultaneously, but the politics share more common attributes with the economy and less with the sports. In this article, we propose an adversarial learning approach (ACNE) for modeling overlapping communities of vertices. Specifically, we map the association between communities and vertices into an embedding space. Moreover, we take further research on enhancing our ACNE with the following two operations. First, in the initialization stage, we adopt a walking strategy with perception to obtain paths containing more possible boundary vertices to improve overlapping community detection. Then, after representation learning with ACNE, we use soft community assignments from a simple classifier as supervision to update the weights of ACNE. This self-training mechanism referred to as ACNE-ST can help ACNE to achieve better performance. Experimental results demonstrate that the proposed methods, including ACNE and ACNE-ST, can outperform the state-of-the-art models on the subsequent tasks of vertex classification and overlapping community detection.
Year
DOI
Venue
2022
10.1109/TNNLS.2021.3083318
IEEE Transactions on Neural Networks and Learning Systems
Keywords
DocType
Volume
Humans,Algorithms,Computer Simulation,Neural Networks, Computer,Learning,Acne Vulgaris
Journal
33
Issue
ISSN
Citations 
11
2162-237X
3
PageRank 
References 
Authors
0.38
18
9
Name
Order
Citations
PageRank
Xiao Dong1243.06
Zhiguo Gong272667.16
Jiqian Mo330.38
Wei Wang47122746.33
Wei Wang57122746.33
Cong Wang64463204.50
X. Dong7286.69
Weiwen Liu84510.55
kaishun wu9105994.59