SIGMA: Self-Guided Integrated Gradient Method for Attribution
A feature attribution method that follows a models decision boundary to explain deep neural network predictions.
Hi, I'm
Sabrina Henry
PhD Researcher | Explainable AI
PhD researcher in the Quantum Optics & Computational Imaging lab at Heriot-Watt University, affiliated with the national quantum hubs in sensing and imaging and position, navigation and timing. Specialising in explainable and interpretable AI for high-stakes applications including healthcare, security, and autonomous vehicles.
Featured Projects
A selection of my recent work
Publications & Presentations
Publications
Self-Guided Integrated Gradient Method for Attribution
S.Henry, A. Ruget, S. Scholes, J. Leach
CVPR 2026 — Findings Track, Denver, CO, June 2026
Preprint · Code
Presentations
Talks
A Self-Guided Approach to Integrated Gradients
S.Henry
Turing Connections Day, Alan Turing Institute, Edinburgh, March 2026
Posters
Attribution Analysis for Interpretable Machine Learning
S. Henry,
AI for Science Conference, The Royal Society, London, March 2026
Experience
Graduate Teaching Assistant
Heriot-Watt University
Demonstrating in year 3 physics undergraduate lab sessions, covering microscopy, magnetostatics, laser physics and computational simulations.
Rank Prize Vacation Scholar
Rank Prize
Created a data-fusion algorithm combining high resolution intensity camera data with a low resolution single-photon imaging array, achieving a 5x increase in fluorescence lifetime image resolution. Awarded best report by the Rank Prize Optoelectronics Committee.
Education
PhD, Explainable AI
Heriot-Watt University
Focus on the development and application of novel explainable AI algorithms for use in healthcare, security and autonomous vehicles. Supervised by Prof. Jonathan Leach and Dr Abderrahim Halimi.
MPhys, Physics (1st Class)
Heriot-Watt University
Focus on quantum physics, photonics, biophotonics, numerical modelling and data analysis. Awarded the Scottish Enterprise Prize for most outstanding masters project.
Get In Touch
Connect
I'm always interested in hearing about new projects and opportunities. Feel free to reach out!
✓ Copied to clipboard!