1500 search results - page 222 / 300 » Query Optimization in Database Grid |
ICDE
2007
IEEE
14 years 11 months ago
2007
IEEE
This paper addresses the problem of efficient maintenance of a materialized skyline view in response to skyline removals. While there has been significant progress on skyline quer...
EDBT
2010
ACM
14 years 4 months ago
2010
ACM
Implementations of map-reduce are being used to perform many operations on very large data. We examine strategies for joining several relations in the map-reduce environment. Our ...
VLDB
1998
ACM
14 years 1 months ago
1998
ACM
Approximate predicates can be used to reduce the number of comparisons made by expensive, complex predicates. For example, to check if a point is within a region (expensive predic...
BTW
2009
Springer
14 years 28 days ago
2009
Springer
: The issue of write-read contention is one of the most prevalent problems when deploying real-time data warehouses. With increasing load, updates are increasingly delayed and prev...
EDBT
2004
ACM
14 years 9 months ago
2004
ACM
Due to the large difference between seek time and transfer time in current disk technology, it is advantageous to perform large I/O using a single sequential access rather than mu...