Partial read from peer-to-peer databases

Partial read from peer-to-peer databases

In this paper we propose Scoop, a mechanism to implement the “partial read operation” for peer-to-peer databases. A peer-to-peer database is a database that its relations are horizontally fragmented and distributed among the nodes of a peer-to-peer network. The partial read operation is a data retrieval operation required for approximate query processing in peer-to-peer databases. A partial rea...

HepToX: Heterogeneous Peer to Peer XML Databases

We study a collection of heterogeneous XML databases maintaining similar and related information, exchanging data via a peer to peer overlay network. In this setting, a mediated global schema is unrealistic. Yet, users/applications wish to query the databases via one peer using its schema. We have recently developed HepToX, a P2P Heterogeneous XML database system. A key idea is that whenever a ...

On Updating in XML Peer-to-Peer Databases

Distributed databases are increasingly used in many applications and software systems. Peer-to-Peer databases are interesting part of distributed databases field. This type of distributed database management system allows to connect stand-alone databases via a computer network. Connected databases cooperate on processing of their tasks with other connected databases. The peer-to-peer databases ...

What Can Databases Do for Peer-to-Peer?

A Hybrid Keyword Search across Peer-to-Peer Federated Databases

The need for Keyword search in databases is suggested both by Web integration with legacy database management system and by dynamic Web publication. However, it sacrifices the inherent meaning of database schema. Web search engines provide clues for resource location on the Web, but have similar semantic problems. The Semantic Web suggests an ideal solution for the semantic problem on the Web. ...