Zobrazeno 1 - 10
of 8 156
pro vyhledávání: '"Christopher, John A."'
Autor:
Chen, Hui, Liu, Hengyu, Li, Yaqiong, Fan, Xuhui, Zhao, Zhilin, Zhou, Feng, Quinn, Christopher John, Cao, Longbing
Temporal point processes (TPPs) are effective for modeling event occurrences over time, but they struggle with sparse and uncertain events in federated systems, where privacy is a major concern. To address this, we propose \textit{FedPP}, a Federated
Externí odkaz:
http://arxiv.org/abs/2410.05637
Autor:
Allison, Christopher John, Zhou, Haoying, Munawar, Adnan, Kazanzides, Peter, Barragan, Juan Antonio
Interactive dynamic simulators are an accelerator for developing novel robotic control algorithms and complex systems involving humans and robots. In user training and synthetic data generation applications, a high-fidelity visualization of the simul
Externí odkaz:
http://arxiv.org/abs/2410.05095
We propose a novel combinatorial stochastic-greedy bandit (SGB) algorithm for combinatorial multi-armed bandit problems when no extra information other than the joint reward of the selected set of $n$ arms at each time step $t\in [T]$ is observed. SG
Externí odkaz:
http://arxiv.org/abs/2312.08057
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract In this study, we introduce a two-dimensional metasurface sensor designed to detect, locate and distinguish between different objects placed in its near field. When an object is placed on the metasurface, local changes can be detected in one
Externí odkaz:
https://doaj.org/article/17c4419b8b524fbc9bfabe276ef32ac9
Autor:
Daniella Soussi, Batool Helmi Ahmad Alharahsheh, Piers Robert Boshier, Jonathan Hoare, Natalie Direkze, Robert Thomas, Christopher John Peters, Sophie Stevens
Publikováno v:
Case Reports in Gastroenterology, Vol 18, Iss 1, Pp 402-411 (2024)
Introduction: Boerhaave syndrome is a rare condition associated with high morbidity and mortality. Prompt intervention greatly improves outcomes, with surgery traditionally being the mainstay of management. Recent advances in therapeutic endoscopy ha
Externí odkaz:
https://doaj.org/article/9dc4cc50df9a47768f7c389bec2cbe87
This paper presents a unified approach for maximizing continuous DR-submodular functions that encompasses a range of settings and oracle access types. Our approach includes a Frank-Wolfe type offline algorithm for both monotone and non-monotone funct
Externí odkaz:
http://arxiv.org/abs/2305.16671
Autor:
Vernstrom, Tessa, West, Jennifer, Vazza, Franco, Wittor, Denis, Riseley, Christopher John, Heald, George
On the largest scales, galaxies are pulled together by gravity to form clusters, which are connected by filaments making a web-like pattern. Radio emission is predicted from this cosmic web, which should originate from the strong accretion shocks aro
Externí odkaz:
http://arxiv.org/abs/2302.08072
We investigate the problem of unconstrained combinatorial multi-armed bandits with full-bandit feedback and stochastic rewards for submodular maximization. Previous works investigate the same problem assuming a submodular and monotone reward function
Externí odkaz:
http://arxiv.org/abs/2302.01324
Autor:
Christopher John Topping, Agnieszka Bednarska, Emilio Benfenati, Jordan Chetcuti, Noa Delso, Xiaodong Duan, Andreas Focks, Ryszard Laskowski, Anna Lombardo, Luna Marcussen, Teodor Metodiev, Michael Rubinigg, Maj Rundlöf, Fabio Sgolastra, Carla Stoyanova, Gregor Sušanj, James Williams, Elżbieta Ziółkowska
Publikováno v:
Research Ideas and Outcomes, Vol 10, Iss , Pp 1-51 (2024)
PollinERA aims to reverse pollinator population declines and reduce the harmful impacts of pesticides. It addresses the call through four objectives: SO1 filling ecotoxicological data gaps to enable realistic prediction of the source and routes of ex
Externí odkaz:
https://doaj.org/article/a71bd7c1350941a983a0acdb03b5e895
Publikováno v:
Proceedings of the 40th International Conference on Machine Learning, 2023
We investigate the problem of stochastic, combinatorial multi-armed bandits where the learner only has access to bandit feedback and the reward function can be non-linear. We provide a general framework for adapting discrete offline approximation alg
Externí odkaz:
http://arxiv.org/abs/2301.13326