Ben Lewis

I am a PhD student at the Department of Computer Science at University of Warwick under the supervision of Ranko Lazic. I am interested in privacy in machine learning, especially membership inference and reconstruction schemes. Before my PhD, I achieved a first class masters in Computer Science from the University of Warwick. 

Publications

• Mildly Overparameterized ReLU Networks on Orthogonal Data: Incremental Learning and Implicit Bias [link]
  James Town, Etienne Boursier, Ben Lewis, Matthias Englert, Ranko Lazic
  NeurIPS 2026 Spotlight

• Text to Stealthy Adversarial Face Mask [link]
  Ben Lewis, Thomas Moyse, James Parkinson, Elizabeth Telford, Callum Whitfield, Ranko Lazic
  TMLR 2025

• Tracing Videos to Their Social Network with Robust DCT Analysis [link]
  Ben Lewis and Victor Sanchez
  "Deep Learning Multimedia Forensics. Combating fake media and misinformation" Workshop at ECML PKDD 2023 (Turin, Italy)

Teaching

I also have experience teaching the following modules:

• CS132 Computer Organisation and Architecture (2024-2026)

• CS259 Formal Languages (2024-2026)

Email: Ben.Lewis@warwick.ac.uk, Office: CS2.18, Department of Computer Science