The new social media sites--blogs, wikis, del.icio.us and Flickr, among others--underscore the transformation of the Web to a participatory medium in which users are actively crea...
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...
Abstract. E-Negotiation is the process of conducting negotiations between business partners using electronic means. The interest in e-negotiation is motivated by its potential to p...
In this paper we thoroughly discuss design and implementation issues for semantic search and navigation to ontology-based metrics and indicators metadata. These semantic search and...
The Semantic Web (SW) offers an opportunity to develop novel, sophisticated forms of question answering (QA). Specifically, the availability of distributed semantic markup on a lar...