ON CHECKING TEMPORAL-OBSERVATION SUBSUMPTION IN SIMILARITY-BASED DIAGNOSIS OF ACTIVE SYSTEMS

Gianfranco Lamperti, Federica Vivenzi, Marina Zanella

Abstract

Similarity-based diagnosis of large active systems is supported by reuse of knowledge generated for solving previous diagnostic problems. Such knowledge is cumulatively stored in a knowledge-base, when the diagnostic session is over. When a new diagnostic problem is to be faced, the knowledge-base is queried in order to possibly find a similar, reusable problem. Checking problem-similarity requires, among other constraints, that the observation relevant to the new problem be subsumed by the observation relevant to the problem in the knowledge-base. However, checking observation-subsumption, following its formal definition, is time and space consuming. The bottleneck lies in the generation of a nondeterministic automaton, its subsequent transformation into a deterministic one (the index space of the observation), and a regular-language containment-checking. In order to speed up the diagnostic process, an alternative technique is proposed, based on the notion of coverage. Besides being effective, subsumption-checking via coverage is also efficient because no index-space generation or comparison is required. Experimental evidence supports this claim.

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in Harvard Style

Lamperti G., Vivenzi F. and Zanella M. (2008). ON CHECKING TEMPORAL-OBSERVATION SUBSUMPTION IN SIMILARITY-BASED DIAGNOSIS OF ACTIVE SYSTEMS . In Proceedings of the Tenth International Conference on Enterprise Information Systems - Volume 2: ICEIS, ISBN 978-989-8111-37-1, pages 44-53. DOI: 10.5220/0001696200440053


in Bibtex Style

@conference{iceis08,
author={Gianfranco Lamperti and Federica Vivenzi and Marina Zanella},
title={ON CHECKING TEMPORAL-OBSERVATION SUBSUMPTION IN SIMILARITY-BASED DIAGNOSIS OF ACTIVE SYSTEMS},
booktitle={Proceedings of the Tenth International Conference on Enterprise Information Systems - Volume 2: ICEIS,},
year={2008},
pages={44-53},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001696200440053},
isbn={978-989-8111-37-1},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Tenth International Conference on Enterprise Information Systems - Volume 2: ICEIS,
TI - ON CHECKING TEMPORAL-OBSERVATION SUBSUMPTION IN SIMILARITY-BASED DIAGNOSIS OF ACTIVE SYSTEMS
SN - 978-989-8111-37-1
AU - Lamperti G.
AU - Vivenzi F.
AU - Zanella M.
PY - 2008
SP - 44
EP - 53
DO - 10.5220/0001696200440053