654 search results - page 115 / 131 » Complexity of Answering Queries Using Materialized Views |
PODS
2009
ACM
14 years 8 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...
ISCI
2008
13 years 7 months ago
2008
The Semantic Web is the next step of the current Web where information will become more machine-understandable to support effective data discovery and integration. Hierarchical sc...
ASPLOS
2006
ACM
13 years 9 months ago
2006
ACM
Different uses of memory protection schemes have different needs in terms of granularity. For example, heap security can benefit from chunk separation (by using protected "pa...
VLDB
2002
ACM
13 years 7 months ago
2002
ACM
Accurate prediction of operator execution time is a prerequisite for database query optimization. Although extensively studied for conventional disk-based DBMSs, cost modeling in ...
COCO
2006
Springer
13 years 11 months ago
2006
Springer
We give an algorithm that learns any monotone Boolean function f : {-1, 1}n {-1, 1} to any constant accuracy, under the uniform distribution, in time polynomial in n and in the de...