620 search results - page 39 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
136
Voted
CCS
2006
ACM
15 years 7 months ago
2006
ACM
In-network aggregation is an essential primitive for performing queries on sensor network data. However, most aggregation algorithms assume that all intermediate nodes are trusted...
162
Voted
PVLDB
2010
15 years 2 months ago
2010
Supporting legacy applications when the database schema evolves represents a long-standing challenge of practical and theoretical importance. Recent work has produced algorithms a...
245
Voted
ICDE
2008
IEEE
16 years 5 months ago
2008
IEEE
We present a system towards the integration of data mining into relational databases. To this end, a relational database model is proposed, based on the so called virtual mining vi...
207
Voted
SIGMOD
2007
ACM
16 years 3 months ago
2007
ACM
Good cardinality estimates are critical for generating good execution plans during query optimization. Complex predicates, correlations between columns, and user-defined functions...
149
Voted
CCS
2008
ACM
15 years 5 months ago
2008
ACM
By functionally decomposing a specific algorithm (the hierarchical secure aggregation algorithm of Chan et al. [3] and Frikken et al. [7]), we uncover a useful general functionali...