Author: Huang, Enyan
Title: Physical behavior based debugging : test and fault localization on cyber-physical systems
Advisors: Wang, Qixin (COMP)
Degree: M.Phil.
Year: 2017
Subject: Hong Kong Polytechnic University -- Dissertations
Cooperating objects (Computer systems)
Embedded computer systems
Department: Department of Computing
Pages: xiii, 69 pages : illustrations
Language: English
Abstract: The rapid growth of control cyber-physical systems (control-CPS) complexity necessitates the use of fault localization tools to locate cyber subsystems' bugs. Many mainstream fault localization tools need large number of labeled ("correct" or "faulty") execution traces as their inputs. To prepare the traces, for most control-CPSs (particularly those large or without complete/accurate models), assertions designed by domain experts are used. This approach is best-effort: often heavily subjective and ad-hoc. To make the approach more principled and systematic, we exploit the state-of-the-art hybrid systems modeling and stability theories to propose a new approach. Empirical evaluations upon commercial-product-grade large control-CPS platform show that our proposed approach achieves significant improvements (42% ~ 300% improvement in accuracy, recall, and latency medians) over the existing approach.
Rights: All rights reserved
Access: open access

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