Case-based classification of ultrasonic b-scans: case-base organisation and case retrieval
conference paper
Dutch Railways use a special train for the ultrasonic inspection of rails. The output of the ultrasonic scanning system installed on the train consists of echo images - so-called B-scans. The B-scans are classified according to the images of rail constructions, noise artefacts, and/or defects that they contain. Currently, at TNO Institute of Applied Physics a hybrid rule-based / case-based classification system is being built for the train. This paper describes the way the cases are represented and matched in the system, the way the case-base is organised, and the way the case retrieval is done. Interesting aspects of the system are: use of fuzzy membership functions for case matching, decision tree (C4.5) based top-level case-base organisation, and clustered bottom-level casebase organisation.
TNO Identifier
533483
ISSN
03029743
ISBN
9783540649908
Publisher
Springer Verlag
Source title
4th European Workshop on Case-Based Reasoning, EWCBR 1998, Advances in Case-Based Reasoning, 23-25 September 1998, Dublin, Ireland
Editor(s)
Smyth, B.
Cunningham, P.
Cunningham, P.
Place of publication
Heidelberg
Pages
100-111
Files
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