109 search results - page 21 / 22 » Optimization Using Tuple Subsumption |
PODS
2000
ACM
13 years 9 months ago
2000
ACM
In a variety of applications ranging from optimizing queries on alphanumeric attributes to providing approximate counts of documents containing several query terms, there is an in...
SIGMOD
1995
ACM
13 years 9 months 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...
ICDE
2010
IEEE
13 years 5 months ago
2010
IEEE
Abstract— Improving data quality is a time-consuming, laborintensive and often domain specific operation. A recent principled approach for repairing dirty database is to use dat...
EDBT
2004
ACM
14 years 5 months ago
2004
ACM
Abstract. Recent years have witnessed an increasing interest in designing algorithms for querying and analyzing streaming data (i.e., data that is seen only once in a fixed order) ...
LCPC
2000
Springer
13 years 9 months ago
2000
Springer
In translating HPF programs, a compiler has to generate local iteration and communication sets. Apart from local enumeration, local storage compression is an issue, because in HPF ...