Zehua Pei

ORCID: 0000-0002-2884-2459
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Research Areas
  • Advanced Image Processing Techniques
  • Image Processing Techniques and Applications
  • Advancements in Photolithography Techniques
  • Advanced Neural Network Applications
  • Air Quality and Health Impacts
  • Advanced Vision and Imaging
  • Climate Change and Health Impacts
  • Software Engineering Research
  • Speech Recognition and Synthesis
  • Catalysis for Biomass Conversion
  • Catalysts for Methane Reforming
  • Online Learning and Analytics
  • Domain Adaptation and Few-Shot Learning
  • Embedded Systems Design Techniques
  • Human Health and Disease
  • Image and Signal Denoising Methods
  • Machine Learning and Algorithms
  • Digital Media Forensic Detection
  • Intelligent Tutoring Systems and Adaptive Learning
  • Energy and Environment Impacts
  • Formal Methods in Verification
  • Catalysis and Hydrodesulfurization Studies
  • Handwritten Text Recognition Techniques
  • Neural Networks and Applications
  • Advanced Measurement and Metrology Techniques

Chinese University of Hong Kong
2023-2024

Shanghai Artificial Intelligence Laboratory
2023-2024

Beijing Academy of Artificial Intelligence
2023

Shaanxi Normal University
2022

Zhejiang University
2018

Al2O3-supported Cu and Ni monometallic as well Cu–Ni bimetallic catalysts were synthesized using a coprecipitation method studied for the in-situ hydrogenation of furfural (FAL) with isopropanol solvent hydrogen donor. The showed improved activity toward production 2-methylfuran (2-MF) 2-methyltetrahydrofuran (2-MTHF) over that catalysts. results indicated exhibited better performance than methanol FAL to produce 2-MF 2-MTHF under same conditions. reaction conditions such copper–nickel...

10.1021/acs.iecr.8b00366 article EN Industrial & Engineering Chemistry Research 2018-03-06

Single-image super-resolution (SISR) is an important task in image processing, which aims to enhance the resolution of imaging systems. Recently, SISR has made a huge leap and achieved promising results with help deep learning (DL). In this survey, we give overview DL-based methods group them according their targets, such as reconstruction efficiency, accuracy, perceptual accuracy. Specifically, first introduce problem definition, research background, significance SISR. Secondly, some...

10.48550/arxiv.2109.14335 preprint EN cc-by arXiv (Cornell University) 2021-01-01

Large language models (LLMs) achieve impressive performance by scaling model parameters, but this comes with significant inference overhead. Feed-forward networks (FFNs), which dominate LLM exhibit high activation sparsity in hidden neurons. To exploit this, researchers have proposed using a mixture-of-experts (MoE) architecture, where only subset of parameters is activated. However, existing approaches often require extensive training data and resources, limiting their practicality. We...

10.48550/arxiv.2502.04416 preprint EN arXiv (Cornell University) 2025-02-06

Quantization is a critical technique employed across various research fields for compressing deep neural networks (DNNs) to facilitate deployment within resource-limited environments. This process necessitates delicate balance between model size and performance. In this work, we explore knowledge distillation (KD) as promising approach improving quantization performance by transferring from high-precision low-precision counterparts. We specifically investigate feature-level information loss...

10.1109/tnnls.2023.3300309 article EN IEEE Transactions on Neural Networks and Learning Systems 2023-08-23

Abstract Background Dyslipidemia is a key factor causing cardio cerebrovascular diseases, and the total cholesterol (TC) an important lipid indicator among them. Studies have shown that environmental factors strong association with TC levels. Previous studies only focused on seasonal variation of level short-term effects some over time, few explored geographical distribution quantified impact in space. Methods Based blood test data which was from China Health Retirement Longitudinal Study...

10.1186/s12889-022-14922-y article EN cc-by BMC Public Health 2022-12-23

Lithography is fundamental to integrated circuit fabrication, necessitating large computation overhead. The advancement of machine learning (ML)-based lithography models alleviates the trade-offs between manufacturing process expense and capability. However, all previous methods regard system as an image-to-image black box mapping, utilizing network parameters learn by rote mappings from massive mask-to-aerial or mask-to-resist image pairs, resulting in poor generalization In this paper, we...

10.1109/dac56929.2023.10247680 article EN 2023-07-09

Recent years have seen rising research in logic synthesis recipe generation to improve the Quality-of-Result (QoR). However, existing approaches typically low efficiency and are stuck at local optima. In this work, we propose a optimization framework, AlphaSyn, that incorporates domain-specific Monte Carlo tree search (MCTS) algorithm. AlphaSyn enables exploration across entire space while optimizing sampling points utilization. We further develop synthesis-specific upper confidence bound...

10.1109/iccad57390.2023.10323856 article EN 2015 IEEE/ACM International Conference on Computer-Aided Design (ICCAD) 2023-10-28

The ever-growing complexity of modern VLSI circuits brings about a substantial increase in the design cycle. As for logic synthesis, how to efficiently obtain physical characteristics subsequent space exploration emerges as critical issue. In this paper, we propose ${\mathsf{LSTP}}$, an ML-based synthesis predictor, which can rapidly predict post-synthesis timing broad range circuit designs. Specifically, explicitly take optimization sequences into consideration so that comprehend synergy...

10.1109/asp-dac58780.2024.10473925 article EN 2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC) 2024-01-22

Generative Pre-trained Transformers (GPTs) have demonstrated remarkable performance across diverse domains through the extensive scaling of model parameters. Recent works observe redundancy transformer blocks and develop compression methods by structured pruning unimportant blocks. However, such straightforward elimination will always provide irreversible degradation. In this paper, we propose FuseGPT, a novel methodology to recycle pruned further recover performance. Firstly introduce new...

10.48550/arxiv.2411.14507 preprint EN arXiv (Cornell University) 2024-11-21

Hotspot detection is an essential step in the physical verification flow to identify layout patterns that are sensitive process variations. Recent advances machine learning have enabled deep neural networks (DNNs) achieve good performance for hotspot detection; however, these models require a high computational complexity and memory footprint. To reduce such costs, quantization provides promising solution by compressing DNNs into low-bit inference schemes. In this paper, we propose several...

10.1109/iseda59274.2023.10218502 article EN 2023-05-08

Lithography is fundamental to integrated circuit fabrication, necessitating large computation overhead. The advancement of machine learning (ML)-based lithography models alleviates the trade-offs between manufacturing process expense and capability. However, all previous methods regard system as an image-to-image black box mapping, utilizing network parameters learn by rote mappings from massive mask-to-aerial or mask-to-resist image pairs, resulting in poor generalization In this paper, we...

10.48550/arxiv.2303.08435 preprint EN cc-by-nc-nd arXiv (Cornell University) 2023-01-01
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