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» Spatial Data Query Support in Peer-to-Peer Systems
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PVLDB
2010
97views more  PVLDB 2010»
14 years 8 months ago
TRAMP: Understanding the Behavior of Schema Mappings through Provenance
Though partially automated, developing schema mappings remains a complex and potentially error-prone task. In this paper, we present TRAMP (TRAnsformation Mapping Provenance), an ...
Boris Glavic, Gustavo Alonso, Renée J. Mill...
SSD
1999
Springer
99views Database» more  SSD 1999»
15 years 2 months ago
Algorithms for Joining R-Trees and Linear Region Quadtrees
The family of R-trees is suitable for storing various kinds of multidimensional objects and is considered an excellent choice for indexing a spatial database. Region Quadtrees are ...
Antonio Corral, Michael Vassilakopoulos, Yannis Ma...
EDBT
2012
ACM
216views Database» more  EDBT 2012»
13 years 10 days ago
Effectively indexing the multi-dimensional uncertain objects for range searching
The range searching problem is fundamental in a wide spectrum of applications such as radio frequency identification (RFID) networks, location based services (LBS), and global po...
Ying Zhang, Wenjie Zhang, Qianlu Lin, Xuemin Lin
RE
2002
Springer
14 years 9 months ago
Automating Speculative Queries through Event-Based Requirements Traceability
Posing speculative questions about a software system is an important yet often unsupported activity. Current impact analysis techniques tend to focus upon the functionality of the...
Jane Cleland-Huang, Carl K. Chang, Gaurav Sethi, K...
AAAI
2007
15 years 8 days ago
Approximating OWL-DL Ontologies
Efficient query answering over ontologies is one of the most useful and important services to support Semantic Web applications. Approximation has been identified as a potential...
Jeff Z. Pan, Edward Thomas