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EWDW
1994
15 years 10 months ago
Optimization of Object-Oriented Queries by Inverse Methods
For object-oriented databases we propose a new technique for optimizing queries containing method invocations. This technique is based on the definition of inverse methods and que...
Johann Eder, Heinz Frank, Walter Liebhart
VLDB
1994
ACM
128views Database» more  VLDB 1994»
15 years 10 months ago
From Nested-Loop to Join Queries in OODB
Most declarative SQL-like query languagesfor object-oriented database systems (OOSQL) are orthogonal languages allowing for arbitrary nesting of expressions in the select-, from-,...
Hennie J. Steenhagen, Peter M. G. Apers, Henk M. B...
LREC
2008
150views Education» more  LREC 2008»
15 years 8 months ago
Automatic Translation of Biomedical Terms by Supervised Machine Learning
In this paper, we present a simple yet efficient automatic system to translate biomedical terms. It mainly relies on a machine learning approach able to infer rewriting rules from...
Vincent Claveau
FOIS
2006
15 years 7 months ago
Approximation of Ontologies in CASL
In this paper we present methods to generate a Description Logic (DL) theory from a given First Order Logic (FOL) theory, such that each DL axiom is entailed by the given FOL theor...
Klaus Lüttich
DLOG
2003
15 years 7 months ago
Extensions to Description Logics
This chapter considers, on the one hand, extensions of Description Logics by features not available in the basic framework, but considered important for using Description Logics a...
Franz Baader, Ralf Küsters, Frank Wolter