1004 search results - page 75 / 201 » Safe Constraint Queries |
WWW
2004
ACM
14 years 9 months ago
2004
ACM
This paper describes a query algebra for queries over XML p2p databases that provides explicit mechanisms for modeling data dissemination, replication constraints, and for capturi...
SUM
2007
Springer
14 years 3 months ago
2007
Springer
Abstract. We present the Consistency Extractor System (ConsEx) that uses answer set programming to compute consistent answers to first-order queries posed to relational databases ...
ICVS
2009
Springer
14 years 3 months ago
2009
Springer
An approach to target-based image retrieval is described based on on-line rank-based learning. User feedback obtained via interaction with 2D image layouts provides qualitative co...
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
We study XML stream-specific schema-based optimization. We assume a widely-adopted automata-based execution model for XQuery evaluation. Criteria are established regarding what s...
CL
2000
Springer
14 years 1 months ago
2000
Springer
In this paper, an algorithm for obtaining consistent answers to queries posed to inconsistent relational databases is presented. The algorith is proven to be sound, terminating and...