no code implementations • 23 May 2023 • Chengbin Xuan, Feng Zhang, Faliang Yin, Hak-Keung Lam
The problem of constrained reinforcement learning (CRL) holds significant importance as it provides a framework for addressing critical safety satisfaction concerns in the field of reinforcement learning (RL).
no code implementations • 16 Feb 2023 • Jingxin Li, Toktam Mahmoodi, Hak-Keung Lam
Although federated learning has achieved many breakthroughs recently, the heterogeneous nature of the learning environment greatly limits its performance and hinders its real-world applications.
no code implementations • 9 Aug 2022 • Yujia Xu, Hak-Keung Lam, Guangyu Jia, Jian Jiang, Junkai Liao, Xinqi Bao
And the achieved precision, sensitivity, and specificity for the COVID-19 pneumonia category are 98. 40%, 99. 59%, and 99. 50%, respectively.
no code implementations • 5 Aug 2022 • Xinqi Bao, Yujia Xu, Hak-Keung Lam, Mohamed Trabelsi, Ines Chihi, Lilia Sidhom, Ernest N. Kamavuako
The findings of this study provided the knowledge for selecting TFDs as CNN input and designing CNN architecture for heart sound classification.
1 code implementation • 18 May 2021 • Moloud Abdar, Soorena Salari, Sina Qahremani, Hak-Keung Lam, Fakhri Karray, Sadiq Hussain, Abbas Khosravi, U. Rajendra Acharya, Vladimir Makarenkov, Saeid Nahavandi
Differently from most of existing studies, which used either CT scan or X-ray images in COVID-19-case classification, we present a simple but efficient deep learning feature fusion model, called UncertaintyFuseNet, which is able to classify accurately large datasets of both of these types of images.
no code implementations • 12 Jan 2020 • Guangyu Jia, Zhaohui Yang, Hak-Keung Lam, Jianfeng Shi, Mohammad Shikh-Bahaei
This letter investigates a channel assignment problem in uplink wireless communication systems.