35 search results - page 4 / 7 » Minimization of tree pattern queries with constraints |
ISMIS
2000
Springer
13 years 9 months ago
2000
Springer
A top-down query processing method for first order deductive databases under the disjunctive well-founded semantics (DWFS) is presented. The method is based upon a characterisation...
VLDB
2007
ACM
14 years 6 months ago
2007
ACM
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
MICS
2010
13 years 4 months ago
2010
Abstract. A Range Minimum Query asks for the position of a minimal element between two specified array-indices. We consider a natural extension of this, where our further constrai...
BALT
2006
13 years 9 months ago
2006
In many application domains (e.g., WWW mining, molecular biology), large string datasets are available and yet under-exploited. The inductive database framework assumes that both s...
EDBT
2004
ACM
14 years 6 months ago
2004
ACM
Earlier work has demonstrated the effectiveness of in-network data aggregation in order to minimize the amount of messages exchanged during continuous queries in large sensor netwo...