654 search results - page 41 / 131 » Complexity of Answering Queries Using Materialized Views |
SBBD
2001
13 years 10 months ago
2001
There are several auxiliary pre-computed access structures that allow faster answers by reading less base data. Examples are materialized views, join indexes, B-tree and bitmap in...
ECAI
2006
Springer
14 years 5 days ago
2006
Springer
We present an approach to building libraries of tasks in complex action languages such as Golog, for query answering. Our formalization is based on a situation calculus framework t...
SSDBM
2000
IEEE
14 years 26 days ago
2000
IEEE
Existing datacube precompuatation schemes materialize selected datacube tuples on disk, choosing the most beneficial cuboids (i.e., combinations of dimensions) to materialize giv...
DAWAK
2001
Springer
14 years 1 months ago
2001
Springer
Multi-Dimensional Expressions (MDX) provide an interface for asking several related OLAP queries simultaneously. An interesting problem is how to optimize the execution of an MDX q...
SIGMOD
2005
ACM
14 years 8 months ago
2005
ACM
Caching data by maintaining materialized views typically requires updating the cache appropriately to reflect dynamic source updates. Extensive research has addressed the problem ...