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Isaac Dunn

Personal photo - Isaac Dunn

Isaac Dunn

Doctoral Student

E: isaac.dunn@cs.ox.ac.uk

Wolfson Building, Parks Road, Oxford OX1 3QD

Interests

I am currently interested in the testing and verification of machine learning systems, and also the use of machine learning to improve testing and verification in general.

Specifically, I have been investigating whether machine learning can be used to automatically generate realistic test cases. By considering so-called adversarial examples as a kind of test input to neural networks, this work has so far cumulated in an arXiv preprint, Generating Realistic Unrestricted Adversarial Inputs using Dual-Objective GAN Training. In this paper, we describe a method which can be used to train a neural network to generate an realistic-looking image which fools a given target classifier.

In ongoing work, I am looking at whether this approach can be generalised to generate tests for other kinds of system. I am also exploring whether the generated realistic unrestricted adversarial inputs can be used to train a more robust classifier.

Biography

After completing my undergraduate degree in computer science at the University of Cambridge in 2016, I spent two years teaching computer science at a school in Birmingham through the Teach First Leadership Development programme. I began studying for a PhD under Profs. Daniel Kroening and Tom Melham in October 2018.

Supervisors