QR-Augmented Spectrum-based Fault Localization

• Type: Article in International Conference Proceedings Book
• Date: 2018

Authors

Perez, A (Author) Other; Rui Abreu (Author) FEUP

Conference proceedings International

Title: Proceedings of the 29th International Workshop on Principles of Diagnosis co-located with 10th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes (SAFEPROCESS 2018), Warsaw, Poland, 27-30 August, 2018.

29th International Workshop on Principles of Diagnosis, DX 2018

27 August 2018 through 30 August 2018

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-00Q-2TE

Abstract (EN): Spectrum-based fault localization (SFL) correlates a system¿s components with observed failures. By reasoning about coverage, SFL allows for a lightweight way of pinpointing faults. This abstraction comes at the cost of missing certain faults, such as errors of omission, and failing to provide enough contextual information to explain why components are considered suspicious. We propose an approach, named Q-SFL, that leverages qualitative reasoning to augment the information made available to SFL techniques. It qualitatively partitions system components, and treats each qualitative state as a new SFL component to be used when diagnosing. Our empirical evaluation shows that augmenting SFL with qualitative components can improve diagnostic accuracy in 54% of the considered real-world subjects.

Language: English

Type (Professor's evaluation): Scientific