The TSIMMIS Approach to Mediation: Data Models and Languages
Journal of Intelligent Information Systems - Special issue: next generation information technologies and systems
Rewriting queries using views in description logics
PODS '97 Proceedings of the sixteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Cooperative Case-Based Reasoning
ECAI '96 Selected papers from the Workshop on Distributed Artificial Intelligence Meets Machine Learning, Learning in Multi-Agent Environments
Information Integration Using Logical Views
ICDT '97 Proceedings of the 6th International Conference on Database Theory
A Case-Based Approach to Information Integration
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
A Conceptual Indexing Method for Content-Based Retrieval
DEXA '99 Proceedings of the 10th International Workshop on Database & Expert Systems Applications
A development framework for component-based agent-oriented business services
International Journal of Agent-Oriented Software Engineering
Modeling and evaluating cooperation strategies in P2P agent systems
AP2PC'02 Proceedings of the 1st international conference on Agents and peer-to-peer computing
| Hi-index | 0.00 |
In literature, the mediator architecture has been proposed for taking information from distributed, heterogeneous, and often dynamic sources and making them work together as a whole. In this paper we propose a distributed case-based approach for the main problem of a mediator, i.e. rewriting queries according to mediator's schema. According to this approach we use a case memory as mediator's schema. Therefore, such a schema is not static (as in other systems) but is dynamically updated through the cooperation with information sources and other mediators, strongly influenced by the queries submitted by a consumer. From the analysis of different cooperation strategies arises that it is more efficient and effective for a mediator to directly cooperate with information sources, when the sources are few. Otherwise, it is more efficient to cooperate with other mediators.