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» Answering XML Queries on Heterogeneous Data Sources
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VLDB
2007
ACM
102views Database» more  VLDB 2007»
14 years 9 months ago
Randomized Algorithms for Data Reconciliation in Wide Area Aggregate Query Processing
Many aspects of the data integration problem have been considered in the literature: how to match schemas across different data sources, how to decide when different records refer...
Fei Xu, Chris Jermaine
COMPGEOM
2007
ACM
14 years 23 days ago
Querying approximate shortest paths in anisotropic regions
We present a data structure for answering approximate shortest path queries in a planar subdivision from a fixed source. Let 1 be a real number. Distances in each face of this sub...
Siu-Wing Cheng, Hyeon-Suk Na, Antoine Vigneron, Ya...
PVLDB
2008
110views more  PVLDB 2008»
13 years 8 months ago
DObjects: enabling distributed data services for metacomputing platforms
Many applications rely heavily on large amounts of data in the distributed storages collected over time or produced by large scale scientific experiments or simulations. The key co...
Pawel Jurczyk, Li Xiong
DEXAW
2007
IEEE
128views Database» more  DEXAW 2007»
14 years 23 days ago
Sharing Data on the Grid using Ontologies and distributed SPARQL Queries
The vision of the Semantic Web is to make Web content machine-readable. To describe data, the Resource Description Framework has been extended with a schema-level and description ...
Andreas Langegger, Martin Blöchl, Wolfram W&o...
EDBT
2008
ACM
137views Database» more  EDBT 2008»
14 years 9 months ago
Data exchange in the presence of arithmetic comparisons
Data exchange is the problem of transforming data structured under a schema (called source) into data structured under a different schema (called target). The emphasis of data exc...
Foto N. Afrati, Chen Li, Vassia Pavlaki