Cybercrime and Security
Preliminary guidelines for empirical research in software engineering
IEEE Transactions on Software Engineering
Shill Bidding In Multi-Round Online Auctions
HICSS '02 Proceedings of the 35th Annual Hawaii International Conference on System Sciences (HICSS'02)-Volume
Running up the bid: detecting, predicting, and preventing reserve price shilling in online auctions
ICEC '03 Proceedings of the 5th international conference on Electronic commerce
Cheating in online auction - Towards explaining the popularity of English auction
Electronic Commerce Research and Applications
A support system for predicting eBay end prices
Decision Support Systems
Agent for Predicting Online Auction Closing Price in a Simulated Auction Environment
PRICAI '08 Proceedings of the 10th Pacific Rim International Conference on Artificial Intelligence: Trends in Artificial Intelligence
Principles of Artificial Neural Networks
Principles of Artificial Neural Networks
Inference of Online Auction Shills Using Dempster-Shafer Theory
ITNG '09 Proceedings of the 2009 Sixth International Conference on Information Technology: New Generations
The effects of shilling on final bid prices in online auctions
Electronic Commerce Research and Applications
Survey: Combating online in-auction fraud: Clues, techniques and challenges
Computer Science Review
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Shill bidding has become a serious issue for innocent bidders with the growing popularity of online auctions. In this paper, we study the relationship between final prices of online auctions and shill activities. We conduct experiments on real auction data from eBay to examine the hypotheses that state how the difference between final auction price and expected auction price implies shill bidding. In the experiments, a neural network based approach is used to learn the expected auction price. In particular, we trained the Large Memory Storage and Retrieval (LAMSTAR) Neural Network based on features extracted from item descriptions, listings and other auction properties. The likelihood of shill bidding is determined by a previously proposed shill certification technique based on Dempster-Shafer theory. By employing the chi-square test of independence and logistic regression, the experimental results indicate that a higher-than-expected final auction price might be used as direct evidence to distinguish likely shill-infected auctions from trustworthy auctions, allowing for more focused evaluation of shill-suspected auctions. As such, this work contributes to providing a feasible way to identify suspicious auctions that may contain shill biddings. It may also help to develop trustworthy auction houses with shill detection services that can protect honest bidders and benefit the auction markets in both the short-term and long term.