Search Results for author: Shiva Nejati

Found 6 papers, 2 papers with code

Evaluating the Impact of Flaky Simulators on Testing Autonomous Driving Systems

1 code implementation30 Nov 2023 Mohammad Hossein Amini, Shervin Naseri, Shiva Nejati

Our empirical results, obtained from two widely-used open-source ADS simulators and five diverse ADS test setups, show that test flakiness in ADS is a common occurrence and can significantly impact the test results obtained by randomized algorithms.

Autonomous Driving

Optimal Priority Assignment for Real-Time Systems: A Coevolution-Based Approach

no code implementations15 Feb 2021 Jaekwon Lee, Seung Yeob Shin, Shiva Nejati, Lionel C. Briand

This enables real-time systems to tolerate unexpected overheads in task executions and still meet their deadlines.

Software Engineering

Can Offline Testing of Deep Neural Networks Replace Their Online Testing?

no code implementations26 Jan 2021 Fitash Ul Haq, Donghwan Shin, Shiva Nejati, Lionel Briand

Further, we cannot exploit offline testing results to reduce the cost of online testing in practice since we are not able to identify specific situations where offline testing could be as accurate as online testing in identifying safety requirement violations.

Digital Twins Are Not Monozygotic -- Cross-Replicating ADAS Testing in Two Industry-Grade Automotive Simulators

no code implementations12 Dec 2020 Markus Borg, Raja Ben Abdessalem, Shiva Nejati, Francois-Xavier Jegeden, Donghwan Shin

Based on a minimalistic scene, we compare critical test scenarios generated using our SBST solution in these two simulators.

Comparing Offline and Online Testing of Deep Neural Networks: An Autonomous Car Case Study

no code implementations28 Nov 2019 Fitash Ul Haq, Donghwan Shin, Shiva Nejati, Lionel Briand

Further, offline testing is more optimistic than online testing as many safety violations identified by online testing could not be identified by offline testing, while large prediction errors generated by offline testing always led to severe safety violations detectable by online testing.

DNN Testing

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