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Sotirios A. Tsaftaris

4 accepted papers

2025

Towards Surgical Task Automation: Actor-Critic Models Meet Self-Supervised Imitation Learning*

IROS 2025

Surgical robot task automation has recently attracted great attention due to its potential to benefit both surgeons and patients. Reinforcement learning (RL) based approaches have demonstrated promising ability to perform automated surgical manipulations on various tasks. To address the exploration

Cited by 0SourcecodeScholar
2024

Benchmarking Counterfactual Image Generation

NeurIPS 2024poster

Generative AI has revolutionised visual content editing, empowering users to effortlessly modify images and videos. However, not all edits are equal. To perform realistic edits in domains such as natural image or medical imaging, modifications must respect causal relationships inherent to the data g…

2024

FairTune: Optimizing Parameter Efficient Fine Tuning for Fairness in Medical Image Analysis

ICLR 2024poster

Training models with robust group fairness properties is crucial in ethically sensitive application areas such as medical diagnosis. Despite the growing body of work aiming to minimise demographic bias in AI, this problem remains challenging. A key reason for this challenge is the fairness generalis…

2023

Diffusion Models for Causal Discovery via Topological Ordering

ICLR 2023poster

Discovering causal relations from observational data becomes possible with additional assumptions such as considering the functional relations to be constrained as nonlinear with additive noise (ANM). Even with strong assumptions, causal discovery involves an expensive search problem over the space…