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Selected Publications

Multi-agent signal-less intersection management with dynamic platoon formation 

No data available.
@inproceedings{soton478647,
title = {Multi-agent signal-less intersection management with dynamic platoon formation},
author = {Phuriwat Worrawichaipat and Enrico Gerding and Ioannis Kaparias and Sarvapali Ramchurn},
url = {https://eprints.soton.ac.uk/478647/},
year = {2023},
date = {2023-05-01},
booktitle = {22nd International Conference on Autonomous Agents and Multiagent Systems (29/05/23 - 02/06/23)},
pages = {1542--1550},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}

AI Foundation Models: initial review, CMA Consultation, TAS Hub Response 

No data available.
@misc{soton477553,
title = {AI Foundation Models: initial review, CMA Consultation, TAS Hub Response},
author = {Joshua Krook and Derek McAuley and Stuart Anderson and John Downer and Peter Winter and Sarvapali D Ramchurn},
url = {https://eprints.soton.ac.uk/477553/},
year = {2023},
date = {2023-06-01},
publisher = {University of Southampton},
keywords = {},
pubstate = {published},
tppubtype = {misc}
}

The effect of data visualisation quality and task density on human-swarm interaction

No data available.
@inproceedings{soton479970,
title = {The effect of data visualisation quality and task density on human-swarm interaction},
author = {Ayodeji Abioye and Mohammad Naiseh and William Hunt and Jediah R Clark and Sarvapali D Ramchurn and Mohammad Soorati},
url = {https://eprints.soton.ac.uk/479970/},
year = {2023},
date = {2023-06-01},
booktitle = {Proceedings of the 2023 32nd IEEE International Conference on Robot and Human Interactive Communication (RO-MAN)},
publisher = {IEEE},
abstract = {Despite the advantages of having robot swarms, human supervision is required for real-world applications. The performance of the human-swarm system depends on several factors including the data availability for the human operators. In this paper, we study the human factors aspect of the human-swarm interaction and investigate how having access to high-quality data can affect the performance of the human-swarm system - the number of tasks completed and the human trust level in operation. We designed an experiment where a human operator is tasked to operate a swarm to identify casualties in an area within a given time period. One group of operators had the option to request high-quality pictures while the other group had to base their decision on the available low-quality images. We performed a user study with 120 participants and recorded their success rate (directly logged via the simulation platform) as well as their workload and trust level (measured through a questionnaire after completing a human-swarm scenario). The findings from our study indicated that the group granted access to high-quality data exhibited an increased workload and placed greater trust in the swarm, thus confirming our initial hypothesis. However, we also found that the number of accurately identified casualties did not significantly vary between the two groups, suggesting that data quality had no impact on the successful completion of tasks.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}

Demonstrating performance benefits of human-swarm teaming 

Autonomous swarms of robots can bring robustness, scalability and adaptability to safety-critical tasks such as search and rescue but their application is still very limited. Using semi-autonomous swarms with human control can bring robot swarms to real-world applications. Human operators can define goals for the swarm, monitor their performance and interfere with, or overrule, the decisions and behaviour. We present the "Human And Robot Interactive Swarm'' simulator (HARIS) that allows multi-user interaction with a robot swarm and facilitates qualitative and quantitative user studies through simulation of robot swarms completing tasks, from package delivery to search and rescue, with varying levels of human control. In this demonstration, we showcase the simulator by using it to study the performance gain offered by maintaining a "human-in-the-loop'' over a fully autonomous system as an example. This is illustrated in the context of search and rescue, with an autonomous allocation of resources to those in need.
@inproceedings{soton479903,
title = {Demonstrating performance benefits of human-swarm teaming},
author = {William Hunt and Jack Ryan and Ayodeji O Abioye and Sarvapali D Ramchurn and Mohammad D Soorati},
url = {https://eprints.soton.ac.uk/479903/},
year = {2023},
date = {2023-05-01},
booktitle = {Proceedings of the 2023 International Conference on Autonomous Agents and Multiagent Systems},
pages = {3062--3064},
publisher = {International Foundation for Autonomous Agents and Multiagent Systems (IFAAMAS)},
abstract = {Autonomous swarms of robots can bring robustness, scalability and adaptability to safety-critical tasks such as search and rescue but their application is still very limited. Using semi-autonomous swarms with human control can bring robot swarms to real-world applications. Human operators can define goals for the swarm, monitor their performance and interfere with, or overrule, the decisions and behaviour. We present the "Human And Robot Interactive Swarm'' simulator (HARIS) that allows multi-user interaction with a robot swarm and facilitates qualitative and quantitative user studies through simulation of robot swarms completing tasks, from package delivery to search and rescue, with varying levels of human control. In this demonstration, we showcase the simulator by using it to study the performance gain offered by maintaining a "human-in-the-loop'' over a fully autonomous system as an example. This is illustrated in the context of search and rescue, with an autonomous allocation of resources to those in need.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}

2020

Mechanism design for efficient allocation of electric vehicles to charging stations

Proceedings Article

The electrification of transport can significantly reduce CO2 emissions and their negative impact on the environment. In this paper, we study the problem of allocating Electric Vehicles (EVs) to charging stations and scheduling their charging. We develop an offline solution that treats EV users as self-interested agents that aim to maximise their profit and minimise the impact on their schedule. We formulate the problem of the optimal EV to charging station allocation as a Mixed Integer Programming (MIP) one and we propose two pricing mechanisms: A fixed-price one, and another that is based on the well known Vickrey-Clark-Groves (VCG) mechanism. We observe that the VCG mechanism services on average 1.5% more EVs than the fixed-price one. In addition, when the stations get congested, VCG leads to higher prices for the EVs and higher profit for the stations, but lower utility for the EVs. However, the VCG mechanism guarantees truthful reporting of the EVs? preferences.
@inproceedings{soton446412,
title = {Mechanism design for efficient allocation of electric vehicles to charging stations},
author = {Emmanouil S Rigas and Enrico Gerding and Sebastian Stein and Sarvapali D Ramchurn and Nick Bassiliades},
url = {https://eprints.soton.ac.uk/446412/},
year = {2020},
date = {2020-09-01},
booktitle = {SETN 2020: 11th Hellenic Conference on Artificial Intelligence},
pages = {10--15},
abstract = {The electrification of transport can significantly reduce CO2 emissions and their negative impact on the environment. In this paper, we study the problem of allocating Electric Vehicles (EVs) to charging stations and scheduling their charging. We develop an offline solution that treats EV users as self-interested agents that aim to maximise their profit and minimise the impact on their schedule. We formulate the problem of the optimal EV to charging station allocation as a Mixed Integer Programming (MIP) one and we propose two pricing mechanisms: A fixed-price one, and another that is based on the well known Vickrey-Clark-Groves (VCG) mechanism. We observe that the VCG mechanism services on average 1.5% more EVs than the fixed-price one. In addition, when the stations get congested, VCG leads to higher prices for the EVs and higher profit for the stations, but lower utility for the EVs. However, the VCG mechanism guarantees truthful reporting of the EVs? preferences.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings} }

Solving the fair electric load shedding problem in developing countries

Journal Article

No data available.
No data available.
@article{oluwasuji2020solving,
title = {Solving the fair electric load shedding problem in developing countries},
author = {Olabambo Ifeoluwa Oluwasuji and Obaid Malik and Jie Zhang and Sarvapali Dyanand Ramchurn},
year = {2020},
date = {2020-01-01},
journal = {Autonomous Agents and Multi-Agent Systems},
volume = {34},
number = {1},
pages = {12},
publisher = {Springer},
keywords = {},
pubstate = {published},
tppubtype = {article} }

Solving the fair electric load shedding problem in developing countries

Journal Article

No data available.
@article{DBLP:journals/aamas/OluwasujiMZR20,
title = {Solving the fair electric load shedding problem in developing countries},
author = {Olabambo Ifeoluwa Oluwasuji and Obaid Malik and Jie Zhang and Sarvapali Dyanand Ramchurn},
url = {https://doi.org/10.1007/s10458-019-09428-8},
doi = {10.1007/s10458-019-09428-8},
year = {2020},
date = {2020-01-01},
journal = {Auton. Agents Multi Agent Syst.},
volume = {34},
number = {1},
pages = {12},
keywords = {},
pubstate = {published},
tppubtype = {article} }

An agent-based negotiation scheme for the distribution of electric vehicles across a set of charging stations

Journal Article

No data available.
@article{DBLP:journals/simpra/SeitaridisRBR20,
title = {An agent-based negotiation scheme for the distribution of electric vehicles across a set of charging stations},
author = {Andreas Seitaridis and Emmanouil S Rigas and Nick Bassiliades and Sarvapali D Ramchurn},
url = {https://doi.org/10.1016/j.simpat.2019.102040},
doi = {10.1016/j.simpat.2019.102040},
year = {2020},
date = {2020-01-01},
journal = {Simul. Model. Pract. Theory},
volume = {100},
pages = {102040},
keywords = {},
pubstate = {published},
tppubtype = {article} }

Offline and Online Electric Vehicle Charging Scheduling With V2V Energy Transfer

Journal Article

No data available.
@article{DBLP:journals/tits/KoufakisRBR20,
title = {Offline and Online Electric Vehicle Charging Scheduling With V2V Energy Transfer},
author = {Alexandros Koufakis and Emmanouil S Rigas and Nick Bassiliades and Sarvapali D Ramchurn},
url = {https://doi.org/10.1109/TITS.2019.2914087},
doi = {10.1109/TITS.2019.2914087},
year = {2020},
date = {2020-01-01},
journal = {IEEE Trans. Intell. Transp. Syst.},
volume = {21},
number = {5},
pages = {2128--2138},
keywords = {},
pubstate = {published},
tppubtype = {article} }

Learning the Value of Teamwork to Form Efficient Teams

Proceedings Article

No data available.
@inproceedings{DBLP:conf/aaai/BealCNR20,
title = {Learning the Value of Teamwork to Form Efficient Teams},
author = {Ryan Beal and Narayan Changder and Timothy D Norman and Sarvapali D Ramchurn},
url = {https://aaai.org/ojs/index.php/AAAI/article/view/6192},
year = {2020},
date = {2020-01-01},
booktitle = {The Thirty-Fourth AAAI Conference on Artificial Intelligence, AAAI 2020, The Thirty-Second Innovative Applications of Artificial Intelligence Conference, IAAI 2020, The Tenth AAAI Symposium on Educational Advances in Artificial Intelligence, EAAI 2020, New York, NY, USA, February 7-12, 2020},
pages = {7063--7070},
publisher = {AAAI Press},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings} }

ODSS: Efficient Hybridization for Optimal Coalition Structure Generation

Proceedings Article

No data available.
@inproceedings{DBLP:conf/aaai/ChangderARD20,
title = {ODSS: Efficient Hybridization for Optimal Coalition Structure Generation},
author = {Narayan Changder and Samir Aknine and Sarvapali D Ramchurn and Animesh Dutta},
url = {https://aaai.org/ojs/index.php/AAAI/article/view/6194},
year = {2020},
date = {2020-01-01},
booktitle = {The Thirty-Fourth AAAI Conference on Artificial Intelligence, AAAI 2020, The Thirty-Second Innovative Applications of Artificial Intelligence Conference, IAAI 2020, The Tenth AAAI Symposium on Educational Advances in Artificial Intelligence, EAAI 2020, New York, NY, USA,
February 7-12, 2020},
pages = {7079--7086},
publisher = {AAAI Press},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings} }

Optimising Game Tactics for Football

Proceedings Article

No data available.
@inproceedings{DBLP:conf/atal/BealCNR20,
title = {Optimising Game Tactics for Football},
author = {Ryan Beal and Georgios Chalkiadakis and Timothy J Norman and Sarvapali D Ramchurn},
editor = {Amal El Fallah Seghrouchni and Gita Sukthankar and Bo An and Neil Yorke -},
url = {https://dl.acm.org/doi/abs/10.5555/3398761.3398783},
year = {2020},
date = {2020-01-01},
booktitle = {Proceedings of the 19th International Conference on Autonomous Agents and Multiagent Systems, AAMAS '20, Auckland, New Zealand, May 9-13,
2020},
pages = {141--149},
publisher = {International Foundation for Autonomous Agents and Multiagent Systems},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings} }