1 Symbolic Data, Concepts and Learning -- Pyramidal Representation of Symbolic Objects -- Knowledge Representation and Symbolic Data Analysis -- Automated Acquisition of Production Rules by Empirical Supervised Learning Methods -- Improving Consistency Within Knowledge Bases -- Cluster and Classify: A Conceptual Approach -- Incremental Learning From Symbolic Objects -- 2 Data Analysis and Applications -- Fitting a Quasi-Poisson Case of the GSTUN (General Stochastic Tree UNfolding) Model and Some Extensions -- A Latent Class Approach to Modeling Pairwise Preferential Choice Data -- Dual Scaling of Designed Experiments -- A Generalization of Asymmetric Multidimensional Scaling -- Some Algorithms for "Bond Energy" Data Analysis, Including Simulated Annealing -- 3 Computer-Assisted Decision Support: Integrating, Representing and Processing Knowledge -- Building an Expert Decision Support System: The Integration of Artificial Intelligence and Operations Research Methods -- Space Management Support Systems: From SH.A.R.P. to M.E.S.s? -- Decision Making: A Computational Approach -- Artificial Intelligence Methods in Data Analysis and Interpretation -- Market-Share Analysis: A Core Technology for Learning About Markets and Competition -- A Tentative Approach to Integrate AI Techniques to Improve a Heuristic-Based OR Model for Rural Telephone Network Planning -- A Knowledge-Based Multimedia Distributed System Model -- Knowledge Representation and Search Methods for Decision Support Systems -- Knowledge-Oriented Support for Data. Analysis Applications to Marketing -- Expert Systems as Support in Economic Planning -- Emergent Themes in Statistical Expert Systems -- Business Forecasts Using a Forecasting Expert System -- Expert Systems: A Database Perspective -- Interpretation of N umbers as Search -- DSFINANCE-Decision Support for Financial Planning -- Applying Data Analysis Techniques to Acquire Knowledge About Database Use and Contents -- Knowledge Acquisition for a Diagnosis-Based Task -- A Simple Software System for Eliciting Structured Sets of Notions from a Group of Experts (Methods and Experiences) -- Demand Forecasting for Strategic Decision Support -- Model Management: The Core of Intelligent Decision Support -- S.AM:.A Knowledge-Based System for Modeling an Economist.