Title
Two-phase network generation towards within-network classifiers evaluation.
Abstract
Within-network classifiers have been widely used to predict unknown data in networks. In order to evaluate the performance of existing classifiers, it is essential to generate synthetic networks with various properties. However, conventional network generation methods become ineffective under this scenario, since they are unable to produce node labels, exert topological constraints, or provide stable generation performance. In this paper, we propose a novel network generation method for evaluating within-network classifiers, which consists of two generation phases. In the first phase of topology generation, network topology can be obtained by incorporating any existing topology generation models. In the second phase of label generation, we model the problem as a multi-objective optimization. Specifically, we prove that generating node labels over an existing topology conforming homophily constraint is NP-hard, and devise a genetic algorithm based strategy for node label generation. Extensive experiments demonstrate that our method can produce synthetic networks with stable properties, and ensure that the network topology is fixed and label parameters take effect independently, thus making it sufficient for evaluating the sensitivity of classifiers against different parameters.
Year
DOI
Venue
2017
10.1016/j.knosys.2017.01.004
Knowl.-Based Syst.
Keywords
Field
DocType
Network generation,Genetic algorithm,Within-network classifiers
Network generation,Data mining,Homophily,Random subspace method,Computer science,Network topology,Artificial intelligence,Genetic algorithm,Machine learning
Journal
Volume
Issue
ISSN
120
C
0950-7051
Citations 
PageRank 
References 
0
0.34
12
Authors
5
Name
Order
Citations
PageRank
Le Li121.72
Junyi Xu2248.39
Xiang Zhao318834.40
Weidong Xiao431459.09
Shengze Hu532.09