Logic-based approach to semantic query optimization
ACM Transactions on Database Systems (TODS)
Type inference for queries on semistructured data
PODS '99 Proceedings of the eighteenth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Minimization of tree pattern queries
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
ToXgene: a template-based data generator for XML
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Semantic Query Optimization for Object Databases
ICDE '97 Proceedings of the Thirteenth International Conference on Data Engineering
Optimizing Regular Path Expressions Using Graph Schemas
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
Processing XML Streams with Deterministic Automata
ICDT '03 Proceedings of the 9th International Conference on Database Theory
Implementation of Two Semantic Query Optimization Techniques in DB2 Universal Database
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
Efficient filtering of XML documents with XPath expressions
The VLDB Journal — The International Journal on Very Large Data Bases
An XML query engine for network-bound data
The VLDB Journal — The International Journal on Very Large Data Bases
Stream processing of XPath queries with predicates
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
XPath queries on streaming data
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
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
A transducer-based XML query processor
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
XMark: a benchmark for XML data management
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
From tree patterns to generalized tree patterns: on efficient evaluation of XQuery
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Query processing for high-volume XML message brokering
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
The BEA/XQRL streaming XQuery processor
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
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
R-SOX: runtime semantic query optimization over XML streams
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
Efficiently Querying Large XML Data Repositories: A Survey
IEEE Transactions on Knowledge and Data Engineering
Online evaluation of regular tree queries
Nordic Journal of Computing
The GCX system: dynamic buffer minimization in streaming XQuery evaluation
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
On-the-fly tuple selection for XQuery
XIME-P '07 Proceedings of the 4th international workshop on XQuery implementation, experience and perspectives
Semantics based buffer reduction for queries over XML data streams
ADC '08 Proceedings of the nineteenth conference on Australasian database - Volume 75
Automaton in or out: run-time plan optimization for XML stream processing
SSPS '08 Proceedings of the 2nd international workshop on Scalable stream processing system
Semantic query optimization for processing XML streams with minimized memory footprint
DataX '08 Proceedings of the 2008 EDBT workshop on Database technologies for handling XML information on the web
Some rewrite optimizations of DB2 XQuery navigation
Proceedings of the 17th ACM conference on Information and knowledge management
Stream schema: providing and exploiting static metadata for data stream processing
Proceedings of the 13th International Conference on Extending Database Technology
Using semantics for XPath query transformation
International Journal of Web and Grid Services
Completing queries: rewriting of incomplete web queries under schema constraints
RR'07 Proceedings of the 1st international conference on Web reasoning and rule systems
Towards performance efficiency in safe XML update
WISE'07 Proceedings of the 8th international conference on Web information systems engineering
Semantic XPath query transformation: opportunities and performance
DASFAA'07 Proceedings of the 12th international conference on Database systems for advanced applications
Efficient evaluation of generalized tree-pattern queries on XML streams
The VLDB Journal — The International Journal on Very Large Data Bases
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
Semantic transformation approach with schema constraints for XPath query axes
WISE'10 Proceedings of the 11th international conference on Web information systems engineering
Comparable dependencies over heterogeneous data
The VLDB Journal — The International Journal on Very Large Data Bases
A survey on XML streaming evaluation techniques
The VLDB Journal — The International Journal on Very Large Data Bases
Editorial: OPQL: Querying scientific workflow provenance at the graph level
Data & Knowledge Engineering
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We study XML stream-specific schema-based optimization. We assume a widely-adopted automata-based execution model for XQuery evaluation. Criteria are established regarding what schema constraints are useful to a particular query. How to apply multiple optimization techniques on an XQuery is then addressed. Finally we present how to correctly and efficiently execute a plan enhanced with our SQO techniques. Our experimentation on both real and synthetic data illustrates that these techniques bring significant performance improvement with little overhead.