E-commerce and web technologies : 5th International Conference, EC-Web 2004 Zaragoza, Spain, August 31-September 3, 2004 : proceedings

Recommender Systems.- Using Attributes to Improve Prediction Quality in Collaborative Filtering.- Using Association Analysis of Web Data in Recommender Systems.- An Intelligent System for Personalized Advertising on the Internet.- Supporting User Query Relaxation in a Recommender System.- Databases and EC Applications.- Accelerating Database Processing at e-Commerce Sites.- Optimized Query Delivery in Distributed Electronic Markets.- Uniform Access to Data in Workflows.- Service-Oriented e-Commerce Applications.- Formal Verification of BPEL4WS Business Collaborations.- Seamless Federation of Heterogeneous Service Registries.- A Survey of Public Web Services.- Electronic Negotiation Systems.- Protocols for Electronic Negotiation Systems: Theoretical Foundations and Design Issues.- Implementing Complex Market Structures with MetaMarkets.- Evaluation of an Online Multidimensional Auction System: A Computer Simulation Investigation.- Electronic Negotiations - A Generic Approach with Action Systems.- Security and Trust in e-Commerce.- Interaction Trust Evaluation in Decentralized Environments.- Towards a Privacy Preserving e-Commerce Protocol.- Using Recoverable Key Commitment to Defend Against Truncation Attacks in Mobile Agents.- Techniques for B2B e-Commerce.- OCL-Constraints for UMM Business Collaborations.- Use and Extension of ebXML Business Profiles for Textile/Clothing Firms.- A Framework for Multilingual Electronic Data Interchange.- Negotiation Strategies and Protocols.- An Analysis of Bidding Activity in Online Auctions.- Negotiating over Bundles and Prices Using Aggregate Knowledge.- A Model for Multi-party Negotiations with Majority Rule.- Modeling of e-Commerce Applications.- Analysis of Mobile Business Processes for the Design of Mobile Information Systems.- Enriching Conceptual Modeling of XML-Aware Adaptive Web Systems with Object-Oriented Constructs and UML Diagrams.- Modelling Content Aggregation for Developing e-Commerce Web Sites.- e-Commerce Intelligence.- On the Use of Bipolar Scales in Preference-Based Recommender Systems.- Applying Text Mining on Electronic Messages for Competitive Intelligence.- Web Page Ranking Based on Events.- e-Retailing and Web Site Design.- A Personalized Offer Presentation Scheme for Retail In-Store Applications.- Combining Usage, Content, and Structure Data to Improve Web Site Recommendation.- Towards a Multidimensional Model for Web-Based Applications Quality Assessment.- Structuring Web Sites Using Linear Programming.- DRM and EC Strategies.- Use of Semantic Tools for a Digital Rights Dictionary.- The Role of Electronic Commerce in Determining Desirable Customer Relationship Outcomes.- Value Based Management and Strategic Planning in e-Business.