no code implementations • 27 Jan 2025 • Wai-Yiu Keung, Hei Victor Cheng, Wing-Kin Ma
Specifically, a spatial Sigma-Delta $(\Sigma\Delta)$ modulation scheme is proposed for one-bit MIMO-DFRC waveform design.
no code implementations • 27 May 2024 • Fengji Ma, Li Liu, Hei Victor Cheng
Simultaneously, fixed pre-trained image embeddings are used as cross-modal auxiliary supervision to maintain the similarity between the MHE-tuned and original text embeddings by the knowledge distillation, preserving semantic information between different classes.
no code implementations • 25 Oct 2023 • Wai-Yiu Keung, Hei Victor Cheng, Wing-Kin Ma
In this context, we may not be able to apply conventional MIMO precoding schemes, such as the simple zero-forcing (ZF) scheme, and we typically need to design the phase signals by solving optimization problems with constant modulus constraints or with discrete phase constraints, which pose challenges with high computational complexities.
1 code implementation • 7 Oct 2023 • Lei You, Hei Victor Cheng
This study addresses the challenge of inaccurate gradients in computing the empirical Fisher Information Matrix during neural network pruning.
no code implementations • 5 Oct 2023 • Jinting Wang, Li Liu, Jun Wang, Hei Victor Cheng
To overcome this challenge, we introduce the concept of residuals by integrating a statistical face prior to the diffusion process.
no code implementations • 22 Nov 2020 • Runkai Zheng, Zhijia Yu, Yinqi Zhang, Chris Ding, Hei Victor Cheng, Li Liu
A major challenge in Fine-Grained Visual Classification (FGVC) is distinguishing various categories with high inter-class similarity by learning the feature that differentiate the details.
Ranked #15 on
Fine-Grained Image Classification
on FGVC Aircraft
1 code implementation • 30 Sep 2020 • Tao Jiang, Hei Victor Cheng, Wei Yu
Intelligent reflecting surface (IRS), which consists of a large number of tunable reflective elements, is capable of enhancing the wireless propagation environment in a cellular network by intelligently reflecting the electromagnetic waves from the base-station (BS) toward the users.
no code implementations • 8 Dec 2019 • Jie Chen, Ying-Chang Liang, Hei Victor Cheng, Wei Yu
Specifically, we propose a novel channel estimation protocol for the above system to estimate the cascaded channels, which are the products of the channels from the base station (BS) to the RIS and from the RIS to the users.