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ICDE
2010
IEEE
212views Database» more  ICDE 2010»
14 years 9 months ago
ViewJoin: Efficient View-based Evaluation of Tree Pattern Queries
A fundamental problem in XML query processing is tree pattern query (TPQ) matching which computes all data instances in an XML database that match an input TPQ. There is a lot of r...
Ding Chen, Chee-Yong Chan
CASES
2010
ACM
13 years 7 months ago
Instruction selection by graph transformation
Common generated instruction selections are based on tree pattern matching, but modern and custom architectures feature instructions, which cannot be covered by trees. To overcome...
Sebastian Buchwald, Andreas Zwinkau
SIGMOD
2006
ACM
121views Database» more  SIGMOD 2006»
14 years 10 months ago
Rewriting nested XML queries using nested views
We present and analyze an algorithm for equivalent rewriting of XQuery queries using XQuery views, which is complete for a large class of XQueries featuring nested FLWR blocks, XM...
Nicola Onose, Alin Deutsch, Yannis Papakonstantino...
NAACL
2010
13 years 7 months ago
Optimal Parsing Strategies for Linear Context-Free Rewriting Systems
Factorization is the operation of transforming a production in a Linear Context-Free Rewriting System (LCFRS) into two simpler productions by factoring out a subset of the nonterm...
Daniel Gildea
POPL
2003
ACM
14 years 10 months ago
Pure patterns type systems
We introduce a new framework of algebraic pure type systems in which we consider rewrite rules as lambda terms with patterns and rewrite rule application as abstraction applicatio...
Gilles Barthe, Horatiu Cirstea, Claude Kirchner, L...