no code implementations • 13 Dec 2023 • Mushfiqur Rahman, Runze Liu, Chau-Wai Wong, Huaiyu Dai
This study focuses on the deepfake detection of facial images of individual public figures.
no code implementations • 7 Dec 2023 • Chau-Wai Wong, Chang-Hong Fu, Mengting Xu, Guan-Ming Su
Reshaping, a point operation that alters the characteristics of signals, has been shown capable of improving the compression ratio in video coding practices.
no code implementations • 7 Nov 2022 • Shu-Jie Cao, Ritesh Goenka, Chau-Wai Wong, Ajit Rajwade, Dror Baron
These samples are arranged into m < n pooled samples, where each pool is obtained by mixing a subset of the n individual samples.
no code implementations • 7 Nov 2022 • Timothy Holder, Mushfiqur Rahman, Emily Summers, David Roberts, Chau-Wai Wong, Alper Bozkurt
Animal Assisted Interventions (AAIs) involve pleasant interactions between humans and animals and can potentially benefit both types of participants.
no code implementations • 12 Jun 2022 • Mahmoud Abdelkhalek, Dror Baron, Chau-Wai Wong
We investigate mismatched estimation in the context of the distance geometry problem (DGP).
no code implementations • 8 Jun 2022 • Kai Yue, Richeng Jin, Chau-Wai Wong, Dror Baron, Huaiyu Dai
Prior work has shown that the gradient sharing strategies in federated learning can be vulnerable to data reconstruction attacks.
no code implementations • 7 Oct 2021 • Kai Yue, Richeng Jin, Ryan Pilgrim, Chau-Wai Wong, Dror Baron, Huaiyu Dai
The paradigm addresses the challenge of statistical heterogeneity by transmitting update data that are more expressive than those of the conventional FL paradigms.
1 code implementation • 6 Oct 2021 • Kai Yue, Richeng Jin, Chau-Wai Wong, Huaiyu Dai
Federated learning allows collaborative workers to solve a machine learning problem while preserving data privacy.
1 code implementation • 2 Aug 2021 • Kai Yue, Richeng Jin, Chau-Wai Wong, Huaiyu Dai
In each communication round, we select the predictor and quantizer based on the rate-distortion cost, and further reduce the redundancy with entropy coding.
no code implementations • 18 Jul 2021 • Xin Tian, Chau-Wai Wong, Sushant M. Ranadive, Min Wu
Experimental results show that our proposed blood oxygen estimation method can reach a mean absolute error of 1. 26% when a pulse oximeter is used as a reference, outperforming the traditional RoR method by 25%.
no code implementations • 11 Jul 2021 • Joshua Mathew, Xin Tian, Min Wu, Chau-Wai Wong
Blood oxygen saturation (SpO$_2$) is an essential indicator of respiratory functionality and is receiving increasing attention during the COVID-19 pandemic.
no code implementations • 26 Mar 2021 • Runze Liu, Chau-Wai Wong, Huaiyu Dai
Modern neural networks have been successful in many regression-based tasks such as face recognition, facial landmark detection, and image generation.
no code implementations • 12 Jan 2021 • Jiele Wu, Chau-Wai Wong, Xinyan Zhao, Xianpeng Liu
For subjective features such as semantic connotation, online workers, known for optimizing their hourly earnings, tend to deteriorate in the quality of their responses as they work longer.
no code implementations • 29 Aug 2020 • Runze Liu, Chau-Wai Wong
We analytically show that log(EER) is decreasing linearly in the edge length of a paper patch.
no code implementations • 14 May 2020 • Qiang Zhu, Mingliang Chen, Chau-Wai Wong, Min Wu
In the field of information forensics, many emerging problems involve a critical step that estimates and tracks weak frequency components in noisy signals.