443 search results - page 70 / 89 » Relational Approach to Logical Query Optimization of XPath |
FSTTCS
2008
Springer
13 years 8 months ago
2008
Springer
ABSTRACT. We introduce a novel approach to the runtime monitoring of complex system properties. In particular, we present an online algorithm for a safety fragment of metric first...
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
SQL tuning--the attempt to improve a poorly-performing execution plan produced by the database query optimizer-is a critical aspect of database performance tuning. Ironically, as ...
PEPM
2009
ACM
14 years 4 months ago
2009
ACM
We show that a wide class of bidirectional data-flow analyses and program optimizations based on them admit declarative descriptions in the form of type systems. The salient feat...
BTW
2009
Springer
13 years 10 months ago
2009
Springer
: Very recently, Cao et al. presented the MAPLE approach, which accelerates queries with multiple instances of the same relation by sharing their scan operator. The principal idea ...
RTSS
2006
IEEE
14 years 1 months ago
2006
IEEE
A real-time database is composed of real-time objects whose values remain valid only within their validity intervals. Each object in the database models a real world entity. The f...