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» Efficient Query Reformulation in Peer-Data Management System...
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WIDM
2006
ACM
13 years 10 months ago
SRI: exploiting semantic information for effective query routing in a PDMS
The huge amount of data available from Internet information sources has focused much attention on the sharing of distributed information through Peer Data Management Systems (PDMS...
Federica Mandreoli, Riccardo Martoglia, Simona Sas...
VLDB
2004
ACM
124views Database» more  VLDB 2004»
13 years 10 months ago
Containment of Nested XML Queries
Query containment is the most fundamental relationship between a pair of database queries: a query Q is said to be contained in a query Q if the answer for Q is always a subset of...
Xin Dong, Alon Y. Halevy, Igor Tatarinov
BTW
2005
Springer
142views Database» more  BTW 2005»
13 years 10 months ago
Self-Extending Peer Data Management
Abstract: Peer data management systems (PDMS) are the natural extension of integrated information systems. Conventionally, a single integrating system manages an integrated schema,...
Ralf Heese, Sven Herschel, Felix Naumann, Armin Ro...
AMW
2009
13 years 5 months ago
Bi-Level Mapping: Combining Schema and Data Level Heterogeneity in Peer Data Sharing Systems
Abstract. Peer data sharing systems use either schema-level or data-level mappings to resolve schema as well as data heterogeneity among data sources (peers). Schema-level mappings...
Md. Anisur Rahman, Mehedi Masud, Iluju Kiringa, Ab...
CIKM
2006
Springer
13 years 6 months ago
Processing relaxed skylines in PDMS using distributed data summaries
Peer Data Management Systems (PDMS) are a natural extension of heterogeneous database systems. One of the main tasks in such systems is efficient query processing. Insisting on co...
Katja Hose, Christian Lemke, Kai-Uwe Sattler