Title
T-Detector: A Trajectory based Pre-trained Model for Game Bot Detection in MMORPGs
Abstract
Game bots are programmed to automatically play games and illegally obtain profit, seriously affecting game experience of honest players and breaking the balance of game ecosystem. Therefore, bot detection needs to be addressed urgently, especially for MMORPGs, one of the most rapidly expanding genres of games. There have been some studies for bot detection, but the features they used are dependent on specific games and the methods cannot be generalized to other games. In this paper, we propose a trajectory based pre-trained model for game bot detection from game character trajectories and mouse trajectories, named T-Detector, which is independent to specific games and can be generalized to others. More specifically, we propose a pretrain method of LocationTime2Vec to learn representations of trajectories from huge unlabeled samples, which deeply embed spatial and temporal information hidden in trajectories. Moreover, we extract universal features based on behavioral differences in movement trajectories between human players and bots. We design an Angle Pretrain to extract features of turning angle, and propose an attention pooling module to extract features of moving speed and distance. Such features are not dependent on any specific game, enabling T-Detector to be generalized to many MMORPGs. Evaluated by two large-scale real-world datasets of 143,938 samples from two MMORPGs, T-Detector achieves the state-of-the-art performance in bot detection, and demonstrates powerful generalization ability.
Year
DOI
Venue
2022
10.1109/ICDE53745.2022.00079
2022 IEEE 38th International Conference on Data Engineering (ICDE)
Keywords
DocType
ISSN
game bot detection,pretrain,feature extraction
Conference
1063-6382
ISBN
Citations 
PageRank 
978-1-6654-0884-4
0
0.34
References 
Authors
18
7
Name
Order
Citations
PageRank
Sha Zhao1489.96
Junwei Fang200.34
Shiwei Zhao301.35
Runze Wu400.68
Jianrong Tao55111.96
Shijian Li6115569.34
Gang Pan71501123.57