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» Query Estimation by Adaptive Sampling
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SGP
2007
13 years 8 months ago
Dynamic geometry registration
We propose an algorithm that performs registration of large sets of unstructured point clouds of moving and deforming objects without computing correspondences. Given as input a s...
Niloy J. Mitra, Simon Flöry, Maks Ovsjanikov,...
ICDE
2009
IEEE
219views Database» more  ICDE 2009»
14 years 8 months ago
Distance Oracles for Spatial Networks
The popularity of location-based services and the need to do real-time processing on them has led to an interest in performing queries on transportation networks, such as finding s...
Jagan Sankaranarayanan, Hanan Samet
ICDE
2008
IEEE
140views Database» more  ICDE 2008»
14 years 7 months ago
A Security Punctuation Framework for Enforcing Access Control on Streaming Data
The management of privacy and security in the context of data stream management systems (DSMS) remains largely an unaddressed problem to date. Unlike in traditional DBMSs where acc...
Rimma V. Nehme, Elke A. Rundensteiner, Elisa Berti...
ICCSA
2007
Springer
13 years 8 months ago
Improving the Customization of Natural Language Interface to Databases Using an Ontology
Natural language interfaces to databases are considered one of the best alternatives for final users who wish to make complex, uncommon and frequent queries, which is a very common...
M. Jose A. Zarate, Rodolfo A. Pazos, Alexander F. ...
VLDB
2004
ACM
163views Database» more  VLDB 2004»
13 years 11 months ago
Compressing Large Boolean Matrices using Reordering Techniques
Large boolean matrices are a basic representational unit in a variety of applications, with some notable examples being interactive visualization systems, mining large graph struc...
David S. Johnson, Shankar Krishnan, Jatin Chhugani...