651 search results - page 98 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
SIGMOD
2008
ACM
14 years 9 months ago
2008
ACM
As peer-to-peer (P2P) networks become more familiar to the database community, intense interest has built up in using their scalability and resilience properties to scale database...
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
Evaluation and applicability of many database techniques, ranging from access methods, histograms, and optimization strategies to data normalization and mining, crucially depend o...
SIGMOD
2011
ACM
12 years 11 months ago
2011
ACM
In the database community, work on information extraction (IE) has centered on two themes: how to effectively manage IE tasks, and how to manage the uncertainties that arise in th...
PODS
2009
ACM
14 years 9 months ago
2009
ACM
Querying uncertain data has emerged as an important problem in data management due to the imprecise nature of many measurement data. In this paper we study answering range queries...
SIGMOD
1995
ACM
14 years 17 days ago
1995
ACM
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...