22 search results - page 3 / 5 » Materialized Sample Views for Database Approximation |
SIGMOD
2004
ACM
14 years 5 months ago
2004
ACM
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...
WWW
2010
ACM
14 years 9 days ago
2010
ACM
We propose a novel method, based on concepts from expander graphs, to sample communities in networks. We show that our sampling method, unlike previous techniques, produces subgra...
GIS
2004
ACM
14 years 6 months ago
2004
ACM
Sensor networks are unattended deeply distributed systems whose schema can be conceptualized using the relational model. Aggregation queries on the data sampled at each ode are th...
ICDE
2004
IEEE
14 years 6 months ago
2004
IEEE
Most of today's structured data is stored in relational databases. Such a database consists of multiple relations which are linked together conceptually via entity-relationsh...
VLDB
2001
ACM
13 years 9 months ago
2001
ACM
We propose an novel method of computing and storing DataCubes. Our idea is to use Bayesian Networks, which can generate approximate counts for any query combination of attribute v...