Query Answering in Peer-to-Peer Data Exchange Systems

The problem of answering queries posed to a peer who is a member of a peer-to-peerdataexchangesystemisstudied.Theanswershavetobeconsistentwrt to both the local semantic constraints and the data exchange constraints with other peers; and must also respect certain trust relationships between peers.A semantics for peer consistent answers under exchange constraints and trust relationships is introduced and some techniques for obtaining those answers are presented.

• Type: Conference
• Year: 2004
• Where: EDBTW
• Authors: Leopoldo E. Bertossi, Loreto Bravo
• Keywords: Data Exchange Constraints, EDBTW 2004, Exchange Constraints, Local Semantic Constraints, Software Engineering