Ann Macintosh Napier University, UK The papers in this volume are the refereed application papers presented at ES2001, the Twenty-fIrst SGES International Conference on Knowledge Based Systems and Applied ArtifIcial Intelligence, held in Cambridge in December 200 I.

Best Application Paper.- Finite Element Mesh Design Expert System.- Session 1: Business and Commerce Applications.- Residential Property Price Time Series Forecasting with Neural Networks.- Supporting the Actors in an Electronic Market Place.- SMART Software for Decision Makers KDD Experience.- Session 2: Engineering Applications.- Expert System for Design Optimisation using Results of the Finite Element Analysis.- Automatic Generation of Design Improvements by Applying Knowledge Based Engineering to the Post-processing of Finite Element Analysis.- Session 3: Engineering, Manufacturing and Music Applications.- Rise Again, Fair Knowledge.- Generating Automotive Electrical System Models from Component Based Qualitative Simulation.- Automated Control of an Actively Compensated Langmuir Probe System Using Simulated Annealing.- Rhythm Pattern Accuracy Diagnosis System Using Cluster Analysis and Music Experts’ Knowledge Base.- Session 4: Knowledge and Information Management.- An Expert System for Evaluating the ’Knowledge Potential’ of Databases.- ESTHER- Expert System for the Diagnostics of Acute Drug Poisoning.- Interpreting Aerial Images: A Knowledge-Level Analysis.- Modelling the Task of Summarising Time Series Data Using KA Techniques.- Session 5: Intelligent Systems.- The Development of a Ramp Metering Strategy Based on Artificial Neural Networks.- When Eigenfaces are Combined with Wavelets.- Author Index.