Logic-based approach to semantic query optimization
ACM Transactions on Database Systems (TODS)
Minimization of tree pattern queries
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
Design and Implementation of a Semantic Query Optimizer
IEEE Transactions on Knowledge and Data Engineering
Containment for XPath Fragments under DTD Constraints
ICDT '03 Proceedings of the 9th International Conference on Database Theory
Raindrop: a uniform and layered algebraic framework for XQueries on XML streams
CIKM '03 Proceedings of the twelfth international conference on Information and knowledge management
Semantic query optimization for XQuery over XML streams
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Query reformulation with constraints
ACM SIGMOD Record
QUIST: a system for semantic query optimization in relational databases
VLDB '81 Proceedings of the seventh international conference on Very Large Data Bases - Volume 7
Knowledge-based query processing
VLDB '80 Proceedings of the sixth international conference on Very Large Data Bases - Volume 6
Semantic query optimization in an automata-algebra combined XQuery engine over XML streams
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
FluXQuery: an optimizing XQuery processor for streaming XML data
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
Using ontologies for semantic query optimization of XML database
KDXD'06 Proceedings of the First international conference on Knowledge Discovery from XML Documents
SQL/XML Performance Analysis of Parent/Ancestor Queries
ICCSA '08 Proceedings of the international conference on Computational Science and Its Applications, Part II
Using semantics for XPath query transformation
International Journal of Web and Grid Services
Towards performance efficiency in safe XML update
WISE'07 Proceedings of the 8th international conference on Web information systems engineering
A utilization of schema constraints to transform predicates in XPath query
DEXA'10 Proceedings of the 21st international conference on Database and expert systems applications: Part I
Towards a smart service based on a context-aware workflow model in u-agriculture
International Journal of Web and Grid Services
Semantic transformation approach with schema constraints for XPath query axes
WISE'10 Proceedings of the 11th international conference on Web information systems engineering
Hi-index | 0.00 |
In this paper we identify the opportunities for the semantic transformation of XPath queries using the structural and explicit semantics defined in an XML schema. Our classification of transformation is the semantic path expression where a path can be semantically contracted, expanded or complemented. Among several applications of such transformations, an obvious one is the semantic optimization of XPath queries. The transformation is likely to result in an improved response time for a given system. We empirically evaluate the gain or loss of performance of the identified transformations with two representative off-the-shelf XML data management systems and XPath query processors.