RESEARCH / SYSAL

Research

SysAL develops algorithms, systems and tools for the physical world. Our work spans learning and control, mission-level planning, learning for intelligent communications, 3D-printed electronics, and privacy-preserving sensing.

01 / RESEARCH AREA

Learning, control and trustworthy autonomy

We study how autonomous systems learn, make decisions and operate reliably under uncertainty, combining reinforcement learning, predictive control and interpretability.

Quadrotor demonstration still
IEEE TASE 2025 · IROS 2025 presentation

ConsDRED

Constrained distributional reinforcement learning for trustworthy quadrotor tracking control.

Figure 1 from AWaVO: graphical model for constrained RL
ICML 2024

AWaVO

Probabilistic constrained reinforcement learning with formal interpretability.

Neural modularity research figure
ICML 2025

Functional interpretability

Inducing, detecting and characterising neural modules in reinforcement learning.

IEEE INTERNET OF THINGS JOURNAL · 2025

Is That Rain?

Rain effects on visual odometry for autonomous aerial vehicles, with efficient edge-based rain classification.

CoRL · 2023

QuaDUE-CCM

Interpretable distributional reinforcement learning using uncertain contraction metrics for precise quadrotor trajectory tracking.

02 / RESEARCH AREA

Planning and decision-making under uncertainty

Autonomous systems must decide not only how to act, but what to do next. We develop methods for mission-level planning, routing and resource allocation when costs, opportunities and operating conditions are uncertain or change over time.

Our work combines combinatorial optimisation, probabilistic modelling and adaptive replanning, connecting high-level mission decisions to the constraints of physical systems.

EUROPEAN JOURNAL OF OPERATIONAL RESEARCH · 2024

Close-enough orienteering

CRaSZe-AntS optimises routes and service locations across overlapping target regions, accounting for resource budgets and non-uniform service costs.

IEEE INTERNET OF THINGS JOURNAL · 2025

ADAPT: adaptive probabilistic planning

Combining offline planning, Bayesian energy-cost estimation and online replanning for UAV missions servicing wireless rechargeable sensor networks under uncertain conditions.

03 / RESEARCH AREA

Learning for intelligent communications

We investigate how learning-based methods can improve the performance, adaptability and trustworthiness of wireless communication systems. Our work combines reinforcement learning, multi-agent decision-making and network optimisation to address mobility, resource allocation, energy efficiency and service quality.

A particular focus is aerial communications, where platform trajectories and wireless resources must be optimised together. We also examine how explainable and causal learning can help people understand and trust AI-driven networks.

IEEE TMLCN · 2024

Multi-agent learning for aerial networks

Shared deep Q-learning with action masking coordinates multiple UAVs, their three-dimensional trajectories and NOMA power allocation as mobile user groups change.

AD HOC NETWORKS · 2026

Airborne STAR-RIS communications

Dual-actor reinforcement learning jointly optimises UAV movement, beamforming and coupled reconfigurable-surface coefficients, balancing throughput, energy and fairness in simulation.

IEEE OJ-COMS · 2025

Explainable learning for 6G

A review of stakeholder-specific explanations, reinforcement learning and causal understanding for trustworthy AI-enabled communications, including network slicing and UAV use cases.

04 / RESEARCH AREA

3D-printed electronics and digital fabrication

We develop accessible fabrication tools and methods for integrating electronics into three-dimensional forms, from thermoformed circuits to five-axis and multi-material printing.

Open5x printer producing support-free turbine and fan shapes

Open5x / MM-Open5x

Five-axis desktop printing, conformal toolpaths and multi-material electronics.

Explore the project ↗MM-Open5x code ↗

MM-Open5x: Practical Conformal Electronics via Multi-Material Multi-Axis Additive Manufacturing · IEEE AMES 2026 · To appear.

Open5x slicing visualisation and fabrication of conductive traces on a curved substrate, from Additive Manufacturing 2023

Curved electrical traces

Five-axis, multi-material printing deposits conductive traces along curved surfaces, improving electrical performance compared with planar deposition.

Paper ↗
Rendered conformal patch and double-curvature ultra-wideband antenna designs

Conformal antennas

Desktop five-axis multi-material fabrication of S-band patch and ultra-wideband antennas, with measured performance against planar-printed counterparts.

Paper ↗
Conformal voltage regulator during printing, after electroplating and after component assembly

Conformal power electronics

Multi-layer surface-mounted circuitry and an assembled switching regulator printed on a curved substrate, explored for resilient space systems.

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Vacuum-formed electronics: design of conductive traces, fabrication process and interactive demonstration

Vacuum-formed electronics

Thin, rigid interactive surfaces with embedded conductive traces, formed from printed sheets.

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05 / RESEARCH AREA

Towards private and trustworthy sensing

Sensing systems can reveal considerably more about people than the information they are intended to collect. We investigate methods for limiting unnecessary disclosure while preserving the utility of the data and the services that depend on it.

Our work on paralinguistic privacy explores how sensitive attributes can be filtered from speech signals, including through configurable processing and privacy-preserving computation at the edge.

ACM TRANSACTIONS ON PRIVACY AND SECURITY · 2023

Paralinguistic privacy protection at the edge

EDGY filters sensitive attributes from voice representations on resource-constrained devices before cloud processing.

ACM CCSW · 2020

Privacy-preserving voice analysis

Disentangled representations help separate useful linguistic information from sensitive paralinguistic attributes.

INTERSPEECH · 2021

Configurable privacy-preserving speech recognition

Configurable protection of sensitive information in automatic speech-recognition workflows.