no code implementations • 11 Oct 2023 • Zheqing Zhu, Yueyang Liu, Xu Kuang, Benjamin Van Roy
Real-world applications of contextual bandits often exhibit non-stationarity due to seasonality, serendipity, and evolving social trends.
no code implementations • 10 Jul 2023 • Saurabh Kumar, Henrik Marklund, Ashish Rao, Yifan Zhu, Hong Jun Jeon, Yueyang Liu, Benjamin Van Roy
The design of such agents, which remains a long-standing challenge of artificial intelligence, is addressed by the subject of continual learning.
no code implementations • 22 Apr 2023 • Yueyang Liu, Zois Boukouvalas, Nathalie Japkowicz
The spread of misinformation in social media outlets has become a prevalent societal problem and is the cause of many kinds of social unrest.
no code implementations • 23 Feb 2023 • Yueyang Liu, Xu Kuang, Benjamin Van Roy
Despite the subject of non-stationary bandit learning having attracted much recent attention, we have yet to identify a formal definition of non-stationarity that can consistently distinguish non-stationary bandits from stationary ones.
no code implementations • 20 Jan 2023 • Yueyang Liu, Artemio Soto-Breceda, Yun Zhao, Phillipa Karoly, Mark J. Cook, David B. Grayden, Daniel Schmidt, Levin Kuhlmann1
Approach An LSTM filter was trained on simulated EEG data generated by a neural mass model using a wide range of parameters.
no code implementations • 4 May 2022 • Yueyang Liu, Xu Kuang, Benjamin Van Roy
We attribute such failures to the fact that, when exploring, the algorithm does not differentiate actions based on how quickly the information acquired loses its usefulness due to non-stationarity.
no code implementations • 6 Jan 2022 • Yueyang Liu, Adithya M. Devraj, Benjamin Van Roy, Kuang Xu
We study the performance of an agent that attains a bounded information ratio with respect to a bandit environment with a Gaussian prior distribution and a Gaussian likelihood function when applied instead to a Bernoulli bandit.
no code implementations • 28 Dec 2021 • Hunmin Lee, Yueyang Liu, Donghyun Kim, Yingshu Li
Non-IID dataset and heterogeneous environment of the local clients are regarded as a major issue in Federated Learning (FL), causing a downturn in the convergence without achieving satisfactory performance.
no code implementations • 22 Dec 2021 • Yueyang Liu, Hunmin Lee, Zhipeng Cai
Deep neural networks have a wide range of applications in solving various real-world tasks and have achieved satisfactory results, in domains such as computer vision, image classification, and natural language processing.