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» Knowledge Representation using Schema Tuple Queries
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PSSS
2003
14 years 11 months ago
DLDB: Extending Relational Databases to Support Semantic Web Queries
Abstract: We present DLDB, a knowledge base system that extends a relational database management system with additional capabilities for DAML+OIL inference. We discuss a number of ...
Zhengxiang Pan, Jeff Heflin
JIIS
2006
76views more  JIIS 2006»
14 years 9 months ago
Holes in joins
A join of two relations in real databases is usually much smaller than their cartesian product. This means that most of the combinations of tuples in the crossproduct of the respe...
Jarek Gryz, Dongming Liang
IJCSA
2008
126views more  IJCSA 2008»
14 years 9 months ago
The GOQL Language and its Formal Specifications
The Graphical Object Query Language (GOQL) is a graphical query language that complies with the ODMG standard and runs on top of the o2 DBMS. The language provides users with the ...
Euclid Keramopoulos, Philippos Pouyioutas, Tasos P...
SEBD
2007
148views Database» more  SEBD 2007»
14 years 11 months ago
Containment of Conjunctive Object Meta-Queries
We consider the problem of query containment over an object data model derived from F-logic. F-logic has generated considerable interest commercially, in the academia, and within ...
Andrea Calì, Michael Kifer
CBMS
2006
IEEE
15 years 3 months ago
Telederm: Enhancing Dermatological Diagnosis for Rural and Remote Communities
This paper describes techniques used in a Web-based decision support system to enhance dermatological diagnosis for rural and remote communities. We proposed a technique to improv...
Monica H. Ou, Geoff A. W. West, Mihai Lazarescu, C...