777 search results - page 59 / 156 » Optimization of Relational Preference Queries |
EMNLP
2006
13 years 11 months ago
2006
We consider the problem of constructing a directed acyclic graph that encodes temporal relations found in a text. The unit of our analysis is a temporal segment, a fragment of tex...
SIGMOD
2004
ACM
14 years 10 months ago
2004
ACM
We present the Priority R-tree, or PR-tree, which is the first R-tree variant that always answers a window query using O((N/B)1-1/d + T/B) I/Os, where N is the number of ddimensio...
AIR
2006
13 years 10 months ago
2006
Abstract Storing and retrieving time-related information are important, or even critical, tasks on many areas of Computer Science (CS) and in particular for Artificial Intelligence...
DOCENG
2004
ACM
14 years 3 months ago
2004
ACM
With the wide adoption of XML as a standard data representation and exchange format, querying XML documents becomes increasingly important. However, relational database systems co...
AIMSA
2006
Springer
14 years 1 months ago
2006
Springer
Although speech and language processing techniques achieved a relative maturity during the last decade, designing a spoken dialogue system is still a tailoring task because of the ...