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Stephen Hailes

8 accepted papers

2025

Partial Information Decomposition for Data Interpretability and Feature Selection

AISTATS 2025poster

In this paper, we introduce Partial Information Decomposition of Features (PIDF), a new paradigm for simultaneous data interpretability and feature selection. Contrary to traditional methods that assign a single importance value, our approach is based on three metrics per feature: the mutual informa…

Cited by 0SourceScholar
2023

Modeling Moral Choices in Social Dilemmas with Multi-Agent Reinforcement Learning

IJCAI 2023poster

Practical uses of Artificial Intelligence (AI) in the real world have demonstrated the importance of embedding moral choices into intelligent agents. They have also highlighted that defining top-down ethical constraints on AI according to any one type of morality is extremely challenging and can pos…

2021

Solving Graph-based Public Goods Games with Tree Search and Imitation Learning

NeurIPS 2021poster

Public goods games represent insightful settings for studying incentives for individual agents to make contributions that, while costly for each of them, benefit the wider society. In this work, we adopt the perspective of a central planner with a global view of a network of self-interested agents a…

2019

Hand-Eye Calibration With a Remote Centre of Motion

RA-L 2019

In the eye-in-hand robot configuration, hand-eye calibration plays a vital role in completing the link between the robot and camera coordinate systems. Calibration algorithms are mature and provide accurate transformation estimations for an effective camera-robot link but rely on a sufficiently wide

Cited by 22SourceScholar
2018

CHESS - Calibrating the Hand-Eye Matrix With Screw Constraints and Synchronization

RA-L 2018

Hand-eye calibration is a classic problem in robotics that aims to find the transformation between two rigidly attached reference frames, usually a camera and a robot end-effector or a motion tracker. Most hand-eye calibration techniques require two data streams, one containing the eye (camera) moti

Cited by 19SourceScholar
2016

Hand-eye calibration for robotic assisted minimally invasive surgery without a calibration object

IROS 2016poster

In a robot mounted camera arrangement, hand-eye calibration estimates the rigid relationship between the robot and camera coordinate frames. Most hand-eye calibration techniques use a calibration object to estimate the relative transformation of the camera in several views of the calibration object…

Cited by 64SourceScholar