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AAAI
2007
15 years 9 months ago
Answering Regular Path Queries in Expressive Description Logics: An Automata-Theoretic Approach
Expressive Description Logics (DLs) have been advocated as formalisms for modeling the domain of interest in various application areas. An important requirement is the ability to ...
Diego Calvanese, Thomas Eiter, Magdalena Ortiz
ITICSE
2004
ACM
16 years 19 hour ago
SQLator: an online SQL learning workbench
SQL (Structured Query Language) is one of the essential topics in foundation databases courses in higher education. Due to its apparent simple syntax, learning to use the full pow...
Shazia Wasim Sadiq, Maria E. Orlowska, Wasim Sadiq...
CDB
2004
Springer
127views Database» more  CDB 2004»
15 years 12 months ago
Moving Objects and Their Equations of Motion
Moving objects are currently represented in databases by means of an explicit representation of their trajectory. However from a physical point of view, or more specifically accor...
Floris Geerts
ICGI
2004
Springer
15 years 12 months ago
Learning Node Selecting Tree Transducer from Completely Annotated Examples
Abstract. A base problem in Web information extraction is to find appropriate queries for informative nodes in trees. We propose to learn queries for nodes in trees automatically ...
Julien Carme, Aurélien Lemay, Joachim Niehr...
NLDB
2001
Springer
15 years 11 months ago
Experiments with the Use of Syntactic Analysis in Information Retrieval
: Up to now, the results of applying sophisticated NL techniques to IR have been mostly disappointing. Our research aims at investigating in detail the role of syntactic analysis i...
Markus Mittendorfer, Werner Winiwarter