Ebook: Network-Based Information Systems: First International Conference, NBiS 2007, Regensburg, Germany, September 3-7, 2007. Proceedings

Welcome to the proceedings of the 1st International Conference on Network- Based Information Systems (NBiS-2007), in conjunction with the 18th Inter- tional Conference on Database and Expert Systems Applications DEXA-2007, which was held in Regensburg, Germany, September 3–4, 2007. The main objective of NBiS-2007 was to bring together scientists, engineers, and researchers from both network systems and information systems with the aimofencouragingtheexchangeofideas,opinions,andexperiencebetweenthese two communities. NBiS started as a workshop and for 9 years it was held together with DEXA International Conference and is the oldest among DEXA Workshops. The wo- shop has been very successful in quantity and quality. We received many paper submissions every year, but as a workshop we could accept only a limited n- ber of papers. This was the ?rst year that NBiS was run as an international conference together with DEXA. We received 122 research papers from all over the world. The submitted papers were carefully reviewed by at least two reviewers. Based on the review results, the Program Committee members selected 55 high-quality papers to be presented during the NBiS-2007 conference.

This book constitutes the refereed proceedings of the First International Conference on Network-Based Information Systems, NBIS 2007, held in Regensburg, Germany, September 3-7, 2007 in conjunction with Dexa 2007.

The 55 revised full papers presented were carefully reviewed and selected from 122 submissions. The papers are organized in topical sections on recommender systems, business process / design aspects, mobile commerce, security and e-payment, Web services computing / semantic Web, e-negotiation and agent mediated systems, and issues in Web advertising.