Introduction ..... ix
1 Not all answers are equally
good: Estimating the quality of database
answers
Amihai Motro, Igor Rakov ..... 1
2 Fuzzy query language for hypothesis
evaluation
Dan Rasmussen, Ronald R. Yager ..... 23
3 Using fuzzy sets
in flexible querying: Why and how?
Didier Dubois, Henri Prade ..... 45
4
Nonstandard database interaction
from metalogic programming
Troels Andreasen, Henning Christiansen ..... 61
5 A fuzzy deductive relational
database
O. Pons, J. M. Medina, J. C. Cubero, M. A. Vila ..... 79
6 Metareasoning agents for
query-answering systems
Jonas Barklund, Pierangelo Dell'Acqua, Stefania
Costantini,\\Gaetano A. Lanzarone ..... 103
7 Fuzzy querying in a concept
object algebraic datamodel
Henrik Legind Larsen, Jørgen Fischer Nilsson ..... 123
8 Flexible query-answering
in a group of databases
Laurence Cholvy ..... 141
9 Fuzzy time indications in
natural languages interfaces
R. De Caluwe, B. Van der Cruyssen, G. De Tré, F. Devos, P. Maesfranckx ..... 163
10 Fuzzy queries against
regular and fuzzy databases
Patrick Bosc, Olivier Pivert ..... 187
11 Answering queries about
validity and completeness of data: From modal logic to relational algebra
Robert Demolombe ..... 209
12 Constructing aggregation
functions using fuzzy modeling
Ronald R. Yager ..... 227
13 Flexible querying using
fuzzy logic: An implementation for Microsoft Access
Janusz Kacprzyk, Slawomir Zadro ..... 247
14 Fuzzy decision trees and databases
Bernadette Bouchon-Meunier, Christophe Marsala ..... 277