Trust management and matchmaking system for multi-attribute reverse auctions

多属性逆向拍卖的信任管理和撮合系统

• 批准号: 239123-2010
• 负责人: Sadaoui, Samira
• 金额: $ 1.46万
• 依托单位: University of Regina
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=570576
• 关键词: Trust; management; matchmaking; system; multi

Online auction frauds, representing the largest part of all Internet frauds, are on the rise because auctions are vulnerable to opportunistic behaviors. Thus, auctions are considered trust-critical systems. Trust is difficult to establish because transactions occur among complete strangers. Nowadays auctions are facing serious frauds including: bid shilling, sniping and shielding, auctioneer cheating, auctioneer-bidder cheating and lack of privacy of submitted bids especially the losing ones. Shilling and auctioneer cheating are the hardest types of frauds to detect. These problems, reported in existing auction houses, make auctions really unfair and unreliable. To increase trust in auctions and overcome the problems listed above, we want to develop a trustworthy online auction house for multi-attribute reverse auctions, i.e. in the context of competing sellers and multiple attributes to describe the products being auctioned. All existing work on trust management for auctions concerns forward auctions, i.e. with competing buyers, and price-only auctions which are simple and cannot be used in many real-world situations. Our trustworthy multi-attribute reverse auction house is composed of the following components: (1) a new mechanism for Internet auctions that copes with sniping, shielding, auctioneer cheating and lack of privacy problems; (2) a real-time fraud detection system that detects at run time two cheating activities: shilling and outbidding; (3) a real-time trust evaluation system that dynamically computes the trust scores of sellers; (4) a framework that evaluates the fairness of our auction protocol, and (5) a matchmaking system that searches for the best sellers' products that match the buyer's request. The matched sellers who have acceptable trust values are then invited to the auction. We will utilize game theory to model the rules of our negotiation protocol and verify desirable theoretical properties, formal methods to be able to realize the activities of components (2) and (4), and multi-agent technology to design, implement and simulate each component of our auction house.

在线拍卖欺诈占所有互联网欺诈的最大部分，由于拍卖容易受到机会主义行为的影响，在线拍卖欺诈正在上升。因此，拍卖被认为是信任关键系统。信任很难建立，因为交易发生在完全陌生的人之间。当今拍卖市场上存在着严重的欺诈行为，包括：哄抬价格、狙击和屏蔽、拍卖人欺诈、拍卖人与投标人之间的欺诈以及投标人特别是落选者的隐私权的缺乏。先令和拍卖商欺骗是最难发现的欺诈类型。这些问题，在现有的拍卖行报告，使拍卖真的不公平和不可靠。为了提高拍卖的信任度并克服上面列出的问题，我们希望开发一个值得信赖的在线拍卖行，用于多属性逆向拍卖，即在竞争卖家和多个属性的背景下描述被拍卖的产品。所有现有的工作，对拍卖的信任管理关注的前瞻性拍卖，即与竞争的买家，和价格拍卖，这是简单的，不能在许多现实世界的情况下使用。 我们值得信赖的多属性反向拍卖行由以下组件组成： (1)一种新的互联网拍卖机制，可以处理狙击、屏蔽、拍卖商欺骗和缺乏隐私问题;（2）一个实时欺诈检测系统，可以在运行时检测两种欺骗行为：先令和出价过高;（3）一个实时信任评估系统，可以动态计算卖家的信任分数;（4）评估我们的拍卖协议的公平性的框架，以及（5）搜索与买家的请求相匹配的最佳卖家的产品的匹配系统。然后邀请具有可接受的信任值的匹配卖家参加拍卖。我们将利用博弈论来模拟我们的谈判协议的规则，并验证理想的理论属性，形式化的方法，能够实现组件（2）和（4）的活动，和多代理技术来设计，实现和模拟我们的拍卖行的每个组件。