An application of supervised and unsupervised learning approaches to telecommunications fraud detection

被引：63
作者：
Hilas, Constantinos S. [1 ]
Mastorocostas, Paris As. [1 ]
机构：
[1] Technol Educ Inst Serres, Dept Informat & Commun, GR-62124 Terma Magnisias, Serres, Greece
来源：
KNOWLEDGE-BASED SYSTEMS | 2008年 / 21卷 / 07期
关键词：
Fraud detection; Telecommunications; User profiling; Supervised learning; Unsupervised learning;
D O I：
10.1016/j.knosys.2008.03.026
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
This paper investigates the usefulness of applying different learning approaches to a problem of telecommunications fraud detection. Five different user models are compared by means of both supervised and unsupervised learning techniques, namely the multilayer perceptron and the hierarchical agglomerative clustering. One aim of the study is to identify the user model that best identifies fraud cases. The second task is to explore different views of the same problem and see what can be learned form the application of each different technique. All data come from real defrauded user accounts in a telecommunications network. The models are compared in terms of their performances. Each technique's outcome is evaluated with appropriate measures. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：721 / 726
页数：6
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