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» Kaleidoscope Data Model for An English-like Query Language
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ENTCS
2006
133views more  ENTCS 2006»
13 years 7 months ago
A Data Model for Data Integration
Data integration systems provide a uniform query interface (UQI) to multiple, autonomous data sources [4]. This paper presents the universal data model (UDM) that captures the sem...
James J. Lu
SIGMOD
2010
ACM
170views Database» more  SIGMOD 2010»
14 years 12 days ago
Querying data provenance
Many advanced data management operations (e.g., incremental maintenance, trust assessment, debugging schema mappings, keyword search over databases, or query answering in probabil...
Grigoris Karvounarakis, Zachary G. Ives, Val Tanne...
WWW
2004
ACM
14 years 8 months ago
A query algebra for xml p2p databases
This paper describes a query algebra for queries over XML p2p databases that provides explicit mechanisms for modeling data dissemination, replication constraints, and for capturi...
Carlo Sartiani
AMAI
2004
Springer
14 years 1 months ago
Learning via Finitely Many Queries
This work introduces a new query inference model that can access data and communicate with a teacher by asking finitely many boolean queries in a language L. In this model the pa...
Andrew C. Lee
ICDE
2012
IEEE
232views Database» more  ICDE 2012»
11 years 10 months ago
Horton: Online Query Execution Engine for Large Distributed Graphs
—Large graphs are used in many applications, such as social networking. The management of these graphs poses new challenges because such graphs are too large to fit on a single ...
Mohamed Sarwat, Sameh Elnikety, Yuxiong He, Gabrie...