2025

Yamani, Hoda; Xing, Yuning; Ong, Lee Violet C; MacDonald, Bruce A; Williams, Henry

Reward Prediction Error Prioritisation in Experience Replay: The RPE-PER Method Journal Article

In: arXiv preprint arXiv:2501.18093, 2025.

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2024

Merton, Harvey; Delamore, Thomas; Stol, Karl; Williams, Henry

Deep Reinforcement Learning for Local Path Following of an Autonomous Formula SAE Vehicle Journal Article

In: arXiv preprint arXiv:2401.02903, 2024.

BibTeX

Valencia, David; Williams, Henry; Gee, Trevor; MacDonaland, Bruce A; Liarokapis, Minas

CTD4-A Deep Continuous Distributional Actor-Critic Agent with a Kalman Fusion of Multiple Critics Journal Article

In: arXiv preprint arXiv:2405.02576, 2024.

BibTeX

Forsberg, Briony; Williams, Henry; MacDonald, Bruce; Chen, Tracy; Hamzeh, Reza; Hulse, Kirstine

Utilising Explainable Techniques for Quality Prediction in a Complex Textiles Manufacturing Use Case Proceedings Article

In: 2024 IEEE 20th International Conference on Automation Science and Engineering (CASE), pp. 245–251, IEEE 2024.

BibTeX

Valencia, David; Williams, Henry; Xing, Yuning; Gee, Trevor; Liarokapis, Minas; MacDonald, Bruce A

Image-Based Deep Reinforcement Learning with Intrinsically Motivated Stimuli: On the Execution of Complex Robotic Tasks Proceedings Article

In: 2024 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp. 587–594, IEEE 2024.

BibTeX

Cutler, Elizabeth; Xing, Yuning; Cui, Tony; Zhou, Brendan; Rijnsoever, Koen; Hart, Ben; Valencia, David; Ong, Lee Violet C; Gee, Trevor; Liarokapis, Minas; others,

Benchmarking Reinforcement Learning Methods for Dexterous Robotic Manipulation with a Three-Fingered Gripper Journal Article

In: arXiv preprint arXiv:2408.14747, 2024.

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Jangali, Rahul; McGuinness, Ben; Lim, Hin; Williams, Henry; Qureshi, Ans H; Smith, David; MacDonald, Bruce A; Duke, Mike

Development of a Novel Multipurpose Robotic End Effector for Fruitlet Thinning and Fruit Harvesting of Apples Proceedings Article

In: 2024 IEEE 20th International Conference on Automation Science and Engineering (CASE), pp. 2073–2078, IEEE 2024.

BibTeX

Sim, Alicia; Pearse, Jonathan; McGuinness, Ben; Williams, Henry; Duke, Mike

Evaluation of a low-cost selective shaking device and soft surface catchment for fresh market blueberry harvesting Proceedings Article

In: 2024 IEEE 20th International Conference on Automation Science and Engineering (CASE), pp. 2813–2818, IEEE 2024.

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Williams, Henry; Harvey, Scott; McGuinness, Ben; Smith, David; Lim, Hin; Duke, Mike

The Barracuda: A Novel Cutting Mechanism for Pruning Canes Wrapped around Wires Proceedings Article

In: 2024 IEEE 20th International Conference on Automation Science and Engineering (CASE), pp. 3286–3293, IEEE 2024.

BibTeX

Qiao, Ting; Williams, Henry; Valencia, David; MacDonald, Bruce

Bounded Exploration with World Model Uncertainty in Soft Actor-Critic Reinforcement Learning Algorithm Journal Article

In: arXiv preprint arXiv:2412.06139, 2024.

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Williams, Henry; Qureshi, Ans H; Smith, David; Gee, Trevor; McGuinness, Ben; Jangali, Rahul; Black, Kale; Harvey, Scott; Downes, Catherine; Lim, Hin; others,

Archie Snr: A Robotic Platform for Autonomous Apple Fruitlet Thinning Proceedings Article

In: 2024 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp. 11781–11788, IEEE 2024.

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Williams, Henry; Smith, David; Shahabi, Jalil; Gee, Trevor; Qureshi, Ans; McGuinness, Ben; Harvey, Scott; Downes, Catherine; Jangali, Rahul; Black, Kale; others,

Archie Jnr: A Robotic Platform for Autonomous Cane Pruning of Grapevines Proceedings Article

In: 2024 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp. 11736–11743, IEEE 2024.

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2023

Qureshi, Ans; Loh, Neville; Kwon, Young Min; Smith, David; Gee, Trevor; Bachelor, Oliver; McCulloch, Josh; Nejati, Mahla; Lim, JongYoon; Green, Richard; others,

Seeing the fruit for the leaves: towards automated apple fruitlet thinning Journal Article

In: arXiv preprint arXiv:2302.09716, 2023.

BibTeX

Valencia, David; Jia, John; Li, Raymond; Hayashi, Alex; Lecchi, Megan; Terezakis, Reuel; Gee, Trevor; Liarokapis, Minas; MacDonald, Bruce A; Williams, Henry

Comparison of model-based and model-free reinforcement learning for real-world dexterous robotic manipulation tasks Proceedings Article

In: 2023 IEEE international conference on robotics and automation (ICRA), pp. 871–878, IEEE 2023.

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Xing, Yuning; Pham, Dexter; Williams, Henry; Smith, David; Ahn, Ho Seok; Lim, JongYoon; MacDonald, Bruce A; Nejati, Mahla

Look how they have grown: Non-destructive Leaf Detection and Size Estimation of Tomato Plants for 3D Growth Monitoring Journal Article

In: arXiv preprint arXiv:2304.03610, 2023.

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Kweon, Andy; Hu, Vishnu; Lim, Jong Yoon; Gee, Trevor; Liu, Edmond; Williams, Henry; MacDonald, Bruce A; Nejati, Mahla; Sa, Inkyu; Ahn, Ho Seok

Visual based Tomato Size Measurement System for an Indoor Farming Environment Journal Article

In: arXiv preprint arXiv:2304.06177, 2023.

BibTeX

Qureshi, Ans; Smith, David; Gee, Trevor; Nejati, Mahla; Shahabi, Jalil; Lim, JongYoon; Ahn, Ho Seok; McGuinness, Ben; Downes, Catherine; Jangali, Rahul; others,

Seeing the Fruit for the Leaves: Robotically Mapping Apple Fruitlets in a Commercial Orchard Proceedings Article

In: 2023 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp. 3234–3239, IEEE 2023.

BibTeX

Williams, Henry; Smith, David; Shahabi, Jalil; Gee, Trevor; Nejati, Mahla; McGuinness, Ben; Black, Kale; Tobias, Jonathan; Jangali, Rahul; Lim, Hin; others,

Modelling wine grapevines for autonomous robotic cane pruning Journal Article

In: biosystems engineering, vol. 235, pp. 31–49, 2023.

BibTeX

Tattersall, Andrew; McGuinness, Benjamin; Lim, Hin; Au, Chi Kit; Williams, Henry; Duke, Mike

The Effect of Dimensional Parameters on the Performance of DDMRs Proceedings Article

In: 2023 IEEE 19th International Conference on Automation Science and Engineering (CASE), pp. 1–6, IEEE 2023.

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Forsberg, Briony; Williams, Henry; MacDonald, Bruce; Chen, Tracy; Hulse, Kirstine

Textile Anomaly Detection: Evaluation of the State-of-the-Art for Automated Quality Inspection of Carpet Proceedings Article

In: Australasian Conference on Robotics and Automation, 2023.

BibTeX

Alicia, Sim.; McGuinness, Ben; Lim, Shen Hin; Williams, Henry; Duke, Mike

Redefining Selective Blueberry Harvesting - Localised Shaking with Minimal Damage Proceedings Article

In: Australasian Conference on Robotics and Automation, 2023.

BibTeX

Valencia, David; Jia, John; Li, Raymond; Hayashi, Alex; Cutler, Elizabeth; Gee, Trevor; Liarokapis, Minas; MacDonald, Bruce; Henry, Williams

On Model-Free Deep Reinforcement Learning for Dexterous Robotic Manipulation: Benchmarks, Analyses, Challenges, and Implementation Tips Proceedings Article

In: Australasian Conference on Robotics and Automation, 2023.

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Sim, A; McGuinness, B; Lim, SH; Williams, H; Duke, M

Redefining selective blueberry harvesting-localised shaking with minimal damage Proceedings Article

In: ACRA, 2023.

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2022

Salvaji, D. Valencia H. Taylor A.

Racing Towards Reinforcement Learning based control of an Autonomous Formula SAE Car Proceedings Article

In: Australasian Conference on Robotics and Automation, ACRA, 2022.

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Burch, K; Nepia, M; Jones, N; Muru-Lanning, M; Williams, H; O’Connor, M

Robots in the workplace: Behind the digital interface/Ng=a karehiko kei te w=ahi mahi: Kei muri i te t=ahono matihiko Journal Article

In: More zeroes and ones: Digital technology and equity in Aotearoa New Zealand, pp. 64–85, 2022.

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2021

Valencia, David; Williams, Henry; MacDonald, Bruce; Qiao, Ting

Action-Conditioned Frame Prediction Without Discriminator Proceedings Article

In: International Conference on Machine Learning, Optimization, and Data Science, pp. 324–337, Springer International Publishing Cham 2021.

BibTeX

Williams, Henry; Bell, Jamie; Nejati, Mahla; Hussein, Salome; Penhall, Nicky; Lim, Jong Yoon; Jones, Mark Hedley; Ahn, Ho Seok; Bradley, Stuart; Schaare, Peter; others,

Evaluating the quality of kiwifruit pollinated with an autonomous robot. Journal Article

In: Field Robotics, vol. 1, no. 1, pp. 231–252, 2021.

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2020

Williams, Henry; Nejati, Mahla; Hussein, Salome; Penhall, Nicky; Lim, Jong Yoon; Jones, Mark Hedley; Bell, Jamie; Ahn, Ho Seok; Bradley, Stuart; Schaare, Peter; others,

Autonomous pollination of individual kiwifruit flowers: Toward a robotic kiwifruit pollinator Journal Article

In: Journal of Field Robotics, vol. 37, no. 2, pp. 246–262, 2020.

BibTeX

Williams, Henry; Ting, Canaan; Nejati, Mahla; Jones, Mark Hedley; Penhall, Nicky; Lim, JongYoon; Seabright, Matthew; Bell, Jamie; Ahn, Ho Seok; Scarfe, Alistair; others,

Improvements to and large-scale evaluation of a robotic kiwifruit harvester Journal Article

In: Journal of Field Robotics, vol. 37, no. 2, pp. 187–201, 2020.

BibTeX

Nejati, Mahla; Penhall, Nicky; Williams, Henry; Bell, Jamie; Lim, JongYoon; Ahn, Ho Seok; MacDonald, Bruce

Kiwifruit detection in challenging conditions Journal Article

In: arXiv preprint arXiv:2006.11729, 2020.

BibTeX

Lim, JongYoon; Ahn, Ho Seok; Nejati, Mahla; Bell, Jamie; Williams, Henry; MacDonald, Bruce A

Deep neural network based real-time kiwi fruit flower detection in an orchard environment Journal Article

In: arXiv preprint arXiv:2006.04343, 2020.

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2019

Williams, Henry AM; Jones, Mark H; Nejati, Mahla; Seabright, Matthew J; Bell, Jamie; Penhall, Nicky D; Barnett, Josh J; Duke, Mike D; Scarfe, Alistair J; Ahn, Ho Seok; others,

Robotic kiwifruit harvesting using machine vision, convolutional neural networks, and robotic arms Journal Article

In: biosystems engineering, vol. 181, pp. 140–156, 2019.

BibTeX

Yang, Fung; Ahn, Ho Seok; Lim, JongYoon; Nejati, Mahla; Williams, Henry; MacDonald, Bruce

System designed to enable scientific analysis on robot pollination algorithm for orchard robot research Proceedings Article

In: 2019 International Conference on Electronics, Information, and Communication (ICEIC), pp. 1–6, IEEE 2019.

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Bulog, E.; Frost, M.; Williams, H.

Deep reinforcement learning for path planning Proceedings Article

In: Australasian Conference on Robotics and Automation, ACRA, 2019.

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2017

Duke, M; Barnett, J; Bell, J; Jones, MH; Martinson, P; McDonald, B; Lim, J

Automated pollination of kiwifruit flowers Proceedings Article

In: 7th Asian-Australasian Conference on Precision Agriculture, pp. 1–5, 2017.

BibTeX

Barnett, Josh; Seabright, Matthew; Williams, Henry AM; Nejati, Mahla; Scarfe, Alastair J; Bell, Jamie; Jones, Mark Hedley; Martinson, P; Schaare, P; Duke, Mike

Robotic pollination-targeting kiwifruit flowers for commercial application Proceedings Article

In: PA17 international tri-conference for precision agriculture, 2017.

BibTeX

Williams, Henry; Browne, Will N; Carnegie, Dale A

Learned Action SLAM: Sharing SLAM through learned path planning information between heterogeneous robotic platforms Journal Article

In: Applied Soft Computing, vol. 50, pp. 313–326, 2017.

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2016

Williams, Henry

Human inspired robotic path planning and heterogeneous robotic mapping PhD Thesis

Open Access Te Herenga Waka-Victoria University of Wellington, 2016.

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2015

Williams, Henry; Naqvi, Syed S; Browne, Will N; Hollitt, Christopher

Introduction of a human based attention model for robotic navigation Proceedings Article

In: 2015 International Conference on Image and Vision Computing New Zealand (IVCNZ), pp. 1–6, IEEE 2015.

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Williams, Henry; Lee-Johnson, Christopher; Browne, Will N; Carnegie, Dale A

Emotion inspired adaptive robotic path planning Proceedings Article

In: 2015 IEEE congress on evolutionary computation (CEC), pp. 3004–3011, IEEE 2015.

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2014

Williams, Henry; Browne, Will N; Carnegie, Dale A

Robotic competitions: Short term pain for long term gain Proceedings Article

In: Proceedings of the 2014 Australasian Conference on Robotics & Automation, 2014.

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2012

Williams, Henry; Browne, Will N

Integration of Learning Classifier Systems with simultaneous localisation and mapping for autonomous robotics Proceedings Article

In: 2012 IEEE Congress on Evolutionary Computation, pp. 1–8, IEEE 2012.

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Williams, Henry; Browne, Will N; Milford, Michael

Image region salience for improving appearance-based place recognition using a supervised classifier system Proceedings Article

In: Proceedings of the 2012 Australasian Conference on Robotics & Automation, pp. 1–10, Australian Robotics & Automation Association 2012.

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