1167 search results - page 39 / 234 » Substitution-closed pattern classes |
VLDB
2003
ACM
14 years 8 months ago
2003
ACM
In data applications such as information integration, there can be limited access patterns to relations, i.e., binding patterns require values to be specified for certain attribut...
PODS
2004
ACM
14 years 8 months ago
2004
ACM
We study the problem of answering queries over sources with limited access patterns. Given a first-order query Q, the problem is to decide whether there is an equivalent query whi...
EDBT
2004
ACM
14 years 8 months ago
2004
ACM
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
SIGCSE
2005
ACM
14 years 2 months ago
2005
ACM
We provide a systematic transformation of an LL(1) grammar to an object model that consists of · an object structure representing the non-terminal symbols and their corresponding...
CVPR
1996
IEEE
14 years 18 days ago
1996
IEEE
The e ciency of pattern recognition is particularly crucial in two scenarios; whenever there are a large number of classes to discriminate, and, whenever recognition must be perfo...