Titlebook: Electronic Commerce; Second International Ludger Fiege,Gero Mühl,Uwe Wilhelm Conference proceedings 2001 Springer-Verlag Berlin Heidelberg

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Using Smart Cards for Fair Exchange suffering a disadvantage. This means that neither of them delivers his digital item without receiving the other party’s item. In general, fair exchange cannot be solved without the help of a . (TTP), a dedicated computer which is trusted by both participants. Trust can be established by carefully s

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Rational Exchange - A Formal Model Based on Game Theoryo give a formal definition for rational exchange relating it to the concept of Nash equilibrium in games. In addition, we study the relationship between rational exchange and fair exchange. We prove that fair exchange implies rational exchange,but the reverse is not true. The practical consequence o

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: An FCC Spectrum Auction Simulator for Autonomous Bidding Agentsfrequency spectrum auctions. In addition to the complexity of these auctions, which provides ample opportunities for intelligent approaches to bidding, this type of auction has huge commercial importance, each bringing in billions of dollars to governments around the world. We implement straightforw

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Multidimensional Recommender Systems: A Data Warehousing Approachl user/item recommender systems to support multiple dimensions, as well as comprehensive profiling and hierarchical aggregation (OLAP) capabilities. We also introduce a new recommendation query language RQL that can express complex recommendations taking into account the proposed extensions. We desc

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A Multi-criteria Taxonomy of Business Models in Electronic Commerceg are not the only possibilities for a company to be active in electronic commerce. This article presents many relevant business models and systematically classifies them. Mainly the classification is based on the type of business subjects like suppliers, customers and mediators and their active or

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