Objective DRUMS II is a continuation of the DRUMS I Basic Research Action (3085), in which defeasible reasoning, uncertainty and incompleteness were studied. The overall objective is to investigate symbolic and quantitative methods of representation and reasoning able to deal with knowledge that is uncertain and defeasible. Six topics have been selected that are of fundamental importance in the domain of defeasible and uncertain reasoning: - Belief change Organisation of the body of existing results for modelling belief changes so as to assess what is common to these belief change schemes. - Non-monotonic deduction Integration of four general frameworks for deduction, namely Gentzen systems, labelled deductive systems, the axiomatisations of the consequence relation, and category theory; in order to provide appropriate insights into the nature and mechanism of non-monotonic deduction. - Inconsistency in reasoning Development of a logic-based model that accounts for inconsistency in reasoning. - Abduction Clarification of the relationships and actual differences of numerical, logical and machine learning perspectives of abduction. - Algorithmic problems Study of the algorithmic problems of uncertain reasoning, taking as general a viewpoint as possible. - Dynamic reasoning with partial models Study of the dynamics of non-monotonic reasoning using information structures as a vehicle for representation.The symbolic and quantitative methods of representation and reasoning able to deal with knowledge that is uncertain and defeasible have been investigated. The 6 topics under study are: belief change, nonmonotonic deduction, inconsistency in reasoning, abduction, algorithmic problems and dynamic reasoning with partial models. The major achievement is the integration of both the symbolic and numerical approaches for handling uncertainty problems, bridging the gaps between 2 usually diametrically opposed approaches. Strong cross fertilization is apparent. The results will be presented in a series of handbooks.APPROACH AND METHODS The project is centred on topics, and not on methods as was the case in DRUMS I. Partners are distributed amongst the six topics, creating a context favourable for strong integration between numerical and symbolic approaches as well as between various schools of thought. POTENTIAL The project will provide a better understanding of the models proposed to represent and to handle uncertainty and defeasible reasoning, two topics that seem to have become major issues in the development of information systems. Fields of science natural sciencescomputer and information sciencesartificial intelligencemachine learning Programme(s) FP3-ESPRIT 3 - Specific research and technological development programme (EEC) in the field of information technologies, 1990-1994 Topic(s) Data not available Call for proposal Data not available Funding Scheme Data not available Coordinator VRIJE UNIVERSITEIT BRUSSEL Address Avenue f.d. roosevelt, 50, 122 1050 Bruxelles Belgium See on map EU contribution € 0,00 Participants (18) Sort alphabetically Sort by EU Contribution Expand all Collapse all AALBORG UNIVERSITET Denmark EU contribution € 0,00 Address Fibigerstraede, 13 9220 Aalborg east See on map Centre National de la Recherche Scientifique (CNRS) France EU contribution € 0,00 Address Campus du beaulieu 35042 Rennes See on map Centre National de la Recherche Scientifique (CNRS) France EU contribution € 0,00 Address 118 route de narbonne 31062 Toulouse See on map Consejo Superior de Investigaciones Cientificas Spain EU contribution € 0,00 Address Serrano 144 28006 Madrid See on map DEUTSCHES FORSCHUNGSZENTRUM FUER KUENSTLICHE INTELLIGENZ GMBH Germany EU contribution € 0,00 Address Stuhlsatzenhausweg 3 66123 Saarbrücken See on map IMPERIAL COLLEGE OF SCIENCE, TECHNOLOGY AND MEDICINE United Kingdom EU contribution € 0,00 Address Queens gate 180 SW7 2BZ London See on map LINKOEPING UNIVERSITY Sweden EU contribution € 0,00 Address Valla 83 Linkoeping See on map Queen Mary and Westfield College United Kingdom EU contribution € 0,00 Address Mile end road E1 4NS London See on map Technische Universität Carolo-Wilhelmina Braunschweig Germany EU contribution € 0,00 Address Pockelsstraße 14 38106 Braunschweig See on map UNIVERSITA DEGLI STUDI DI TORINO Italy EU contribution € 0,00 Address Corso svizzera 185 10149 Torino See on map UNIVERSITAIRE INSTELLING ANTWERPEN Belgium EU contribution € 0,00 Address Universiteitsplein, 1 2610 Wilrijk See on map UNIVERSITAT DE GRANADA Spain EU contribution € 0,00 Address Cuesta del hospicio 18071 Granada See on map UNIVERSITE DE FRIBOURG Switzerland EU contribution € 0,00 Address Misercicorde 1700 Fribourg See on map UNIVERSITEIT VAN AMSTERDAM Netherlands EU contribution € 0,00 Address , 7161 1007 MC Amsterdam See on map UNIVERSITY OF LUND Sweden EU contribution € 0,00 Address Ole romers vag, 1118 221 00 Lund See on map Università degli Studi di Catania Italy EU contribution € 0,00 Address Viale andrea doria 6 95125 Catania See on map Université d'Aix-Marseille I (Université de Provence) France EU contribution € 0,00 Address 3 place victor hugo 13331 Marseille See on map Université de Paris XI (Université Paris-Sud) France EU contribution € 0,00 Address Avenue georges clémenceau 91405 Orsay See on map