The Gem–Stone data management system
Object-oriented concepts, databases, and applications
Representing biomedical knowledge in the UMLS semantic network
High performance medical libraries
Artificial intelligence: a modern approach
Artificial intelligence: a modern approach
A query language for a Web-site management system
ACM SIGMOD Record
OKBC: a programmatic foundation for knowledge base interoperability
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
The object data standard: ODMG 3.0
The object data standard: ODMG 3.0
SilkRoute: trading between relations and XML
Proceedings of the 9th international World Wide Web conference on Computer networks : the international journal of computer and telecommunications netowrking
The Yin/Yang web: XML syntax and RDF semantics
Proceedings of the 11th international conference on World Wide Web
Artificial Intelligence: Structures and Strategies for Complex Problem Solving
Artificial Intelligence: Structures and Strategies for Complex Problem Solving
Introduction To Automata Theory, Languages, And Computation
Introduction To Automata Theory, Languages, And Computation
Object Exchange Across Heterogeneous Information Sources
ICDE '95 Proceedings of the Eleventh International Conference on Data Engineering
Adding Structure to Unstructured Data
ICDT '97 Proceedings of the 6th International Conference on Database Theory
Proceedings of the 17th International Conference on Data Engineering
Relational Databases for Querying XML Documents: Limitations and Opportunities
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
UnQL: a query language and algebra for semistructured data based on structural recursion
The VLDB Journal — The International Journal on Very Large Data Bases
Efficiently publishing relational data as XML documents
The VLDB Journal — The International Journal on Very Large Data Bases
A reference ontology for biomedical informatics: the foundational model of anatomy
Journal of Biomedical Informatics - Special issue: Unified medical language system
Research on structural issues of the UMLS: past, present, and future
Journal of Biomedical Informatics - Special issue: Unified medical language system
A reference ontology for biomedical informatics: the foundational model of anatomy
Journal of Biomedical Informatics - Special issue: Unified medical language system
Content-specific auditing of a large scale anatomy ontology
Journal of Biomedical Informatics
Ontological modeling at a domain interface: Bridging clinical and biomolecular knowledge
The Knowledge Engineering Review
A framework for XML-Based integration of data, visualization and analysis in a biomedical domain
XSym'05 Proceedings of the Third international conference on Database and XML Technologies
My corporis fabrica: a unified ontological, geometrical and mechanical view of human anatomy
3DPH'09 Proceedings of the 2009 international conference on Modelling the Physiological Human
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The development of large semantic networks, such as the UMLS, which are intended to support a variety of applications, requires a flexible and efficient query interface for the extraction of information. Using one of the source vocabularies of UMLS as a test bed, we have developed such a prototype query interface. We first identify common classes of queries needed by applications that access these semantic networks. Next, we survey STRUQL, an existing query language that we adopted, which supports all of these classes of queries. We then describe the OQAFMA Querying Agent for the Foundational Model of Anatomy (OQAFMA), which provides an efficient implementation of a subset of STRUQL by pre-computing a variety of indices. We describe how OQAFMA leverages database optimization by converting STRUQL queries to SQL. We evaluate the flexibility and efficiency of our implementation using English queries written by anatomists. This evaluation verifies that OQAFMA provides flexible, efficient access to one such large semantic network, the Foundational Model of Anatomy, and suggests that OQAFMA could be an efficient query interface to other large biomedical knowledge bases, such as the Unified Medical Language System.