Uncertainty in Knowledge Bases de Bernadette Bouchon-Meunier

Uncertainty in Knowledge Bases: 3rd International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems, IPMU'90, Paris, France, July 2 - 6, 1990. Proceedings: Lecture Notes in Computer Science, cartea 521

Bernadette Bouchon-Meunier

Ronald R. Yager

Lotfi A. Zadeh

en Limba Engleză Paperback – 11 sep 1991

The management and processing of uncertain information hasshown itself to be a crucial issue in the development ofintelligent systems, beginning withits appearance in thesuch systems as Mycin and Prospector. The papers in thisvolume reflect the current range of interests or researchersin thefield. Currently, the major approaches to uncertaintyinclude fuzzy set theory, probabilistic methods,mathematical theory of evidence, non-standardlogics such asdefault reasoning, and possibility theory.The initial part of the volume is devoted to papers dealingwith the foundations of these approaches, where recentattempts have been made to develop systems combiningmultiple approaches. A significant part of the book looks atthe management of uncertainty in a number of theparadigmatic domainsof intelligent systems such as expertsystems, decision making, databases, image processing, andreasoning networks.The papers are extended versions of presentations at thethird international conference on information processing andmanagement of uncertainty in knowledge-based systems. Theproceedings of the two preceding IPMU conferences appear asLNCS 286 and LNCS 313.

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Cuprins

On Spohn's theory of epistemic beliefs.- Fast algorithms for Dempster-Shafer theory.- On the combination of information sources.- Application aspects of qualitative conditional independence.- A study of probabilities and belief functions under conflicting evidence: Comparisons and new methods.- Propagating belief functions through constraints systems.- Updating uncertain information.- Assessing multiple beliefs according to one body of evidence — Why it may be necessary, and how we might do it correctly.- Probabilistic default reasoning.- On knowledge representation in belief networks.- Stoss — A stochastic simulation system for Bayesian belief networks.- Conditional events with vague information in expert systems.- On representation of source reliability in weight of evidence.- An abstract mechanism for handling uncertainty.- A method to build membership functions.- Algebraic analysis of fuzzy indiscernibility.- On modelling fuzzy preference relations.- Conceptual conectivity analysis by means of fuzzy partitions.- Transitive solutions of relational equations on finite sets and linear lattices.- Generalized cardinal numbers and their ordering.- An interval-based approach for working with fuzzy numbers.- Beyond specificity.- About the logical interpretation of ambiguous inheritance hierarchies.- Nonmonotonic reasoning and modal logic, from negation as failure to default logic.- On the notion of uncertain belief revision systems.- Non-monotonic reasoning in a semantic network.- Inference in possibilistic hypergraphs.- Semantic evaluation in possibilistic logic application to min-max discrete optimisation problems.- Formalizing multiple-valued logics as institutions.- Empirical plausible reasoning by multiple-valued logic.- Time, tense, and relativity revisited.-Information and the mind-body problem.- A general information for fuzzy sets.- Information theory based on fuzzy (possibilistic) rules.- Measuring uncertainty given imprecise attribute values.- Discrimination by optimizing a local consistency criterion.- Minimum loss of information and image segmentation.- Towards a general theory of evidential reasoning.- A pragmatic way out of the maze of uncertainty measures.- Models for reasoning with multitype uncertainty in expert systems.- A hybrid belief system for doubtful agents.- How to reason with uncertain knowledge.- Computation and uncertainty in regulated synergetic machines.- Inductive learning from incomplete and imprecise examples.- Some algorithms for evaluating fuzzy relational queries.- Time and incompleteness in a deductive database.- An approach to the linguistic summarization of data.- Management of uncertainty in the attachment problem in natural language processing.- A topological approach to some cluster methods.- A fuzzy knowledge-based system for biomedical image interpretation.- Management of caotic systems with the model for the regulation of agonistic antagonistic couples.- Fuzzy multicriteria techniques: An application to transport planning.- Fuzzy logic approach to modelling in ecosystem research.- An application of fuzzy multi-criteria decision making for topological design of large networks.- A distance measure for decision making in uncertain domains.- Decisions and lack of precision in crop management: The role of processing both objects and procedures through semantic networks.- A neural network expert system with confidence measurements.- Dealing with uncertainty in a distributed expert system architecture.- The combinatorial neural network: A connectionist model for knowledge based systems.- Amedical decision aid based on a neural network model.- A fuzzy neuron based upon maximum entropy ordered weighted averaging.