Daniel Beechey

Daniel Beechey

Research Intern, H Company, London

I'm a research intern at H Company, using RL to train computer-use agents. I previously worked as a research scientist on the AI Agents team at Huawei's Noah's Ark Lab, and completed my PhD in the Bath RL Lab, supervised by Özgür Şimşek.

Interests

I'm interested in all things reinforcement learning. Currently, I'm focussing on building LLM-based agents that continuously learn by setting, pursuing, and verifying their own goals (2025).

Previously, I studied how to explain reinforcement learning agents, identifying their behaviour, outcomes, and predictions as aspects of interaction worth understanding (2023). This involved developing a theoretical framework to derive these explanations (2025) and creating scalable methods to approximate them in practice (2025).

More broadly, a common thread in how I think about intelligence is bounded rationality: how intelligence emerges as a necessary adaptation for agents operating with limited resources in a world far more complex than themselves. I'm also drawn to conversations that question the foundations of reinforcement learning, exploring how our assumptions about agents and environments shape the algorithms and conceptual models we design.

Papers

Darwin Mobile Agent: A Roadmap for Self-Evolution

Daniel Beechey, Derek Yuen, Jianheng Liu, et al.

Preprint, 2025

Project | Paper | Code

Extended SVERL Image

A Theoretical Framework for Explaining Reinforcement Learning with Shapley Values

Daniel Beechey, Thomas M. S. Smith, Özgür Şimşek

Preprint, 2025

Paper | Code

Approximating Shapley Explanations in Reinforcement Learning

Daniel Beechey, Özgür Şimşek

NeurIPS, 2025

Paper | Code | Poster

Chemistry Image

Reformulating Reactivity Design for Data-Efficient Machine Learning

Toby Lewis-Atwell, Daniel Beechey, et al.

ACS Catalysis, 2023

Paper | Code

ICML SVERL Image

Explaining Reinforcement Learning with Shapley Values

Daniel Beechey, Thomas M. S. Smith, Özgür Şimşek

ICML, 2023

Paper | Code | Poster

Open-Source Projects

Darwin Mobile Agent

An end-to-end pipeline for large-scale online reinforcement learning of mobile GUI agents.

FastSVERL

A scalable library for approximating Shapley value explanations in reinforcement learning.

Talks

Talk Image

Explaining Reinforcement Learning with Shapley Values: Theory and Algorithms

Edinburgh RL Group, September 2025

Slides

Talk Image

A Theoretical Framework for Explaining Reinforcement Learning with Shapley Values

ART-AI Colloquium Series, February 2025

Bath Doctoral Festival of Ideas, July 2024

Slides

Talk Image

An Introduction to Explainable and Hierarchical Reinforcement Learning

Bath AI Society, April 2024

Slides

Talk Image

Explaining Reinforcement Learning with Shapley Values

Bath Computer Science Conference, July 2023

Alan Turing Institute Student Presentations, June 2023

Slides

News

Teaching

I have taught computer science and mathematics at the University of Bath, including lecturing on reinforcement learning, supporting undergraduate and postgraduate teaching across reinforcement learning, statistics, programming, and applied mathematics, and supervising student projects.

Lecturing

University of Bath

Teaching Assistant

University of Bath

  • Reinforcement Learning, 2022-2023
  • Software Technologies for Data Science, 2021
  • Statistics for Data Science, 2021
  • Programming, Foundations, and Connections, 2021
  • Programming and Discrete Mathematics, 2021
  • Mathematical Methods and Applications, 2020