The Piazza peer data management project
- 1 September 2003
- journal article
- Published by Association for Computing Machinery (ACM) in ACM SIGMOD Record
- Vol. 32 (3), 47-52
- https://doi.org/10.1145/945721.945732
Abstract
A major problem in today's information-driven world is that sharing heterogeneous, semantically rich data is incredibly difficult. Piazza is a peer data management system that enables sharing heterogeneous data in a distributed and scalable way. Piazza assumes the participants to be interested in sharing data, and willing to define pairwise mappings between their schemas. Then, users formulate queries over their preferred schema, and a query answering system expands recursively any mappings relevant to the query, retrieving data from other peers. In this paper, we provide a brief overview of the Piazza project including our work on developing mapping languages and query reformulation algorithms, assisting the users in defining mappings, indexing, and enforcing access control over shared data.Keywords
This publication has 13 references indexed in Scilit:
- Schema mediation in peer data management systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- The chatty webPublished by Association for Computing Machinery (ACM) ,2003
- A framework for semantic gossipingACM SIGMOD Record, 2002
- Answering queries using views: A surveyThe VLDB Journal, 2001
- Reconciling schemas of disparate data sourcesACM SIGMOD Record, 2001
- The Semantic WebScientific American, 2001
- The state of the art in distributed query processingACM Computing Surveys, 2000
- Complexity of answering queries using materialized viewsPublished by Association for Computing Machinery (ACM) ,1998
- Mariposa: a wide-area distributed database systemThe VLDB Journal, 1996
- Multidimensional binary search trees used for associative searchingCommunications of the ACM, 1975