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KRDB
1996
123views Database» more  KRDB 1996»
13 years 5 months ago
Flexible Query-Answering Systems Modelled in Metalogic Programming
Metaprogramming adds new expressive power to logic programming which can be advantageous to transfer to the field of deductive databases. We propose metaprogramming as a way to mo...
Troels Andreasen, Henning Christiansen
DEDUCTIVE
1994
122views Database» more  DEDUCTIVE 1994»
13 years 5 months ago
A Simple Model for Active Rules and their Behavior in Deductive Databases
Recent advances in non-monotonic semantics of deductive databases provide a simple framework for modeling the even-condition-action rules of active databases. This approach unifie...
Carlo Zaniolo, Reza Sadri
DAGSTUHL
1998
13 years 5 months ago
Active-U-Datalog: Integrating Active Rules in a Logical Update Language
Deductive database technology represents an important step towards the goal of developing highly-declarative database programming languages. In order to make deductive databases a ...
Elisa Bertino, Barbara Catania, Vincenzo Gervasi, ...
KRDB
2003
142views Database» more  KRDB 2003»
13 years 5 months ago
Optimizing Query Answering in Description Logics using Disjunctive Deductive Databases
Motivated by the possibilities of applying deductive database technology for efficient query answering in description logics, we present a translation operator µ that transforms...
Boris Motik, Raphael Volz
PEPM
1995
ACM
13 years 8 months ago
Towards Creating Specialised Integrity Checks through Partial Evaluation of Meta-Interpreters
In [23] we presented a partial evaluation scheme for a “real life” subset of Prolog, containing first-order built-in’s, simple side-effects and the operational predicate i...
Michael Leuschel, Danny De Schreye
VLDB
1992
ACM
98views Database» more  VLDB 1992»
13 years 8 months ago
Updates in a Rule-Based Language for Objects
The integration of object-oriented concepts into deductive databases has been investigated for a certain time now. Various approaches to incorporate updates into deduction have be...
Michael Kramer, Georg Lausen, Gunter Saake
EDBT
1990
ACM
108views Database» more  EDBT 1990»
13 years 8 months ago
Deductive Databases - Theory Meets Practice
Deductive Databases are coming of age with the emergence of efficient and easy to use systems that support queries, reasoning, and application development on databases through dec...
Carlo Zaniolo
VLDB
1994
ACM
149views Database» more  VLDB 1994»
13 years 8 months ago
Qualified Answers That Reflect User Needs and Preferences
This paper introduces a formalism to describe the needs and preferences of database users. Because of the precise formulation of these concepts, we have found an automatic and ver...
Terry Gaasterland, Jorge Lobo
AC
1992
Springer
13 years 8 months ago
Logic and Databases
Logic and databases have gone a long way together since the advent of relational databases. Already the rst basic query languages for relational databases beside relational algebra...
Johann Eder
EPIA
1993
Springer
13 years 8 months ago
A Uniform Framework for Deductive Database Derivation Strategies
A uniform framework is presented to describe the most typical strategies that are used to compute answers to Deductive Databases. The framework is based on the definition of a ge...
Robert Demolombe