Netinfo Security ›› 2024, Vol. 24 ›› Issue (11): 1696-1709.doi: 10.3969/j.issn.1671-1122.2024.11.009

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Research on the Evolution of Defrauded Network Behavior Risk Based on Eventic Graph

ZHOU Shengli1,2(), XU Rui1, CHEN Tinggui3, JIANG Keyi2   

  1. 1. School of Cyberspace Security, Hangzhou Dianzi University, Hangzhou 310018, China
    2. Department of Computer and Information Security, Zhejiang Police College, Hangzhou 310053, China
    3. School of Statistics, Zhejiang Gongshang University, Hangzhou 310018, China
  • Received:2024-06-17 Online:2024-11-10 Published:2024-11-21

Abstract:

Based on real case data, this study investigated the risks of defrauded network behavior from the perspective of telecom network fraud victims' online activities, which can effectively enhance the prevention and control capabilities of telecom network fraud. To this end, the study first processed the relevant data using the LTP tool. Secondly, it extracted defrauded network behavior risk events and the eventic logical relationships between these events from the relevant corpus data through template matching methods, and constructed a specific eventic graph of defrauded network behavior risks. Then, the study built a deep clustering model based on an autoencoder to generalize and cluster the extracted risk events, and constructed an abstract eventic graph of defrauded network behavior risks based on the generalization results. Finally, using the constructed specific and abstract eventic graphs, the study analyzed the composition and patterns of defrauded network behavior risks through case process analysis models and complex network analysis techniques. The study ultimately categorized the defrauded network behavior risks of telecom network fraud into four stages: contact risk, trust deception risk, psychological vulnerability exploitation risk, and behavior control risk, and summarized the temporal sequences and compositions of each risk stage.

Key words: telecom network fraud, natural language processing, eventic graph, evolution analysis

CLC Number: