251 search results - page 3 / 51 » Rewriting Aggregate Queries using Description Logic |
RCC
2002
13 years 7 months ago
2002
In recent years Arvind's Group at MIT has shown the usefulness of term rewriting theory for the specification of processor architectures. In their approach processors specifi...
SIGMOD
2001
ACM
14 years 7 months ago
2001
ACM
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...
DKE
2006
13 years 7 months ago
2006
The last few years, there has been an extensive body of literature in data warehousing applications that primarily focuses on basket-type (transactional) data, common in retail in...
DAIS
2009
13 years 5 months ago
2009
Queries are widely used for acquiring data distributed in opportunistically formed mobile networks. However, when queries are executed in such dynamic settings, the returned result...
AAAI
2006
13 years 9 months ago
2006
We consider the problem of rewriting a query efficiently using materialized views. In the context of information integration, this problem has received significant attention in th...