Intelligent integration of information
SIGMOD '93 Proceedings of the 1993 ACM SIGMOD international conference on Management of data
Evaluation of search results: a new approach
Journal of the American Society for Information Science
Merging heterogenous security orderings
Journal of Computer Security
Abstraction of Representation for Interoperation
ISMIS '97 Proceedings of the 10th International Symposium on Foundations of Intelligent Systems
DBPL '01 Revised Papers from the 8th International Workshop on Database Programming Languages
Querying structured text in an XML database
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Flexible and efficient XML search with complex full-text predicates
Proceedings of the 2006 ACM SIGMOD international conference on Management of data
XQuery full-text extensions explained
IBM Systems Journal
Expressive probabilistic description logics
Artificial Intelligence
Managing uncertainty and vagueness in description logics for the Semantic Web
Web Semantics: Science, Services and Agents on the World Wide Web
Uncertainty Reasoning for the Semantic Web
RR '09 Proceedings of the 3rd International Conference on Web Reasoning and Rule Systems
Semantic-distance based evaluation of ranking queries over relational databases
Journal of Intelligent Information Systems
Semantic aware RSS query algebra
Proceedings of the 12th International Conference on Information Integration and Web-based Applications & Services
XML based semantic query mechanism on grid
ISPA'06 Proceedings of the 2006 international conference on Frontiers of High Performance Computing and Networking
Ontology fusion with complex mapping patterns
KES'06 Proceedings of the 10th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part I
An XML query mechanism with ontology integration
ISPA'05 Proceedings of the 2005 international conference on Parallel and Distributed Processing and Applications
Probabilistic ontologies and relational databases
OTM'05 Proceedings of the 2005 Confederated international conference on On the Move to Meaningful Internet Systems - Volume >Part I
Si-SEEKER: ontology-based semantic search over databases
KSEM'06 Proceedings of the First international conference on Knowledge Science, Engineering and Management
Semantic query planning mechanism on XML based web information systems
WISE'06 Proceedings of the 7th international conference on Web Information Systems
RSS query algebra: Towards a better news management
Information Sciences: an International Journal
Hi-index | 0.00 |
TAX is perhaps the best known extension of the relational algebra to handle queries to XML databases. One problem with TAX (as with many existing relational DBMSs) is that the semantics of terms in a TAX DB are not taken into account when answering queries. Thus, even though TAX answers queries with 100% precision, the recall of TAX is relatively low. Our TOSS system improves the recall of TAX via the concept of a similarity enhanced ontology (SEO). Intuitively, an ontology is a set of graphs describing relationships (such as isa, partof, etc.) between terms in a DB. An SEO also evaluates how similarities between terms (e.g. "J. Ullman", "Jeff Ullman", and "Jeffrey Ullman") affect ontologies. Finally, we show how the algebra proposed in TAX can be extended to take SEOs into account. The result is a system that provides a much higher answer quality than TAX does alone (quality is defined as the square root of the product of precision and recall). We experimentally evaluate the TOSS system on the DBLP and SIGMOD bibliographic databases and show that TOSS has acceptable performance.