An overview of query optimization in relational systems
PODS '98 Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
A reference ontology for biomedical informatics: the foundational model of anatomy
Journal of Biomedical Informatics - Special issue: Unified medical language system
A Complete and Efficient Algebraic Compiler for XQuery
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
Strategies for query unnesting in XML databases
ACM Transactions on Database Systems (TODS)
Optimization of nested XQuery expressions with orderby clauses
Data & Knowledge Engineering
Querying xml with update syntax
Proceedings of the 2007 ACM SIGMOD international conference on Management of data
The NEXT framework for logical XQuery optimization
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
Proceedings of the 17th international conference on World Wide Web
SPARQL basic graph pattern optimization using selectivity estimation
Proceedings of the 17th international conference on World Wide Web
RDF-3X: a RISC-style engine for RDF
Proceedings of the VLDB Endowment
Proceedings of the 17th ACM conference on Information and knowledge management
Rapid prototyping of semantic mash-ups through semantic web pipes
Proceedings of the 18th international conference on World wide web
Viewing the semantic web through RVL lenses
Web Semantics: Science, Services and Agents on the World Wide Web
Foundations of SPARQL query optimization
Proceedings of the 13th International Conference on Database Theory
A schema-based translation of XQuery updates
XSym'10 Proceedings of the 7th international XML database conference on Database and XML technologies
vSPARQL: A view definition language for the semantic web
Journal of Biomedical Informatics
A Query Integrator and Manager for the Query Web
Journal of Biomedical Informatics
ReVeaLD: A user-driven domain-specific interactive search platform for biomedical research
Journal of Biomedical Informatics
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Users interested in biological and biomedical information sets on the semantic web are frequently not computer scientists. These researchers often find it difficult to use declarative query and view definition languages to manipulate these RDF data sets. We define a language IML consisting of a small number of graph transformations that can be composed in a dataflow style to transform RDF ontologies. The language's operations closely map to the high-level manipulations users undertake when transforming ontologies using a visual editor. To reduce the potentially high cost of evaluating queries over these transformations on demand, we describe a query rewriting engine for evaluating queries on IML views. The rewriter leverages IML's dataflow style and optimizations to eliminate unnecessary transformations in answering a query over an IML view. We evaluate our rewriter's performance on queries over use case view definitions on one or more biomedical ontologies.