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Case-Based Reasoning Applied to Geometric Production Measurements

Fulltext:


Authors:

Ella Olsson, Peter Funk, Alf Andersson

Publication Type:

Journal article

Venue:

International Journal of Systems Assurance Engineering and Management

Publisher:

Springer


Abstract

Measurements from products are continuously collected to allow adjustments in the production line to certify a feasible product quality. Case-Based Reasoning is a promising methodology for this type of quality assurance. It allows product measurements and its related adjustments to the production line to be stored as cases in a Case-Based Reasoning system. The idea is to describe an event of adjustments based on deviations in geometric measurement points on a product and connect these measurements to their correlated adjustments done to the production line. Experience will implicitly be stored in each case in the form of uniquely weighted measurement points according to their positive influence on adjustments. Methods have been developed in order to find these positive correlations between measurements and adjustments by analysing a set of historical product measurement and their following adjustments. Each case saved in the case base will be "quality assured" according to this methods and only cases containing strong positive correlations will be used by the system. The correlations will be used to supply each case with its own set individual weights.

Bibtex

@article{Olsson1837,
author = {Ella Olsson and Peter Funk and Alf Andersson},
title = {Case-Based Reasoning Applied to Geometric Production Measurements},
volume = {Accepted for publishing},
month = {February},
year = {2011},
journal = {International Journal of Systems Assurance Engineering and Management},
publisher = {Springer},
url = {http://www.es.mdh.se/publications/1837-}
}