检索结果-内蒙古大学图书馆

30th Asia and South Pacific Design Automation Conference, ASP-DAC 2025

作者： Qian, Kai Lu, Haodong Liu, Yinqiu Zhang, Zexu Wang, Kun School of Microelectronics Fudan University China College of Computing and Data Science Nanyang Technological University Singapore

ISBN: (纸本)9798400706356

Field-Programmable Gate Array (FPGA) has shown great application potential in deploying Neural Networks (NNs) due to the characteristics of programmability, low power consumption, etc. However, deploying NNs on FPGA is non-trivial because (1) Mainstream NNs pose significant FPGA architecture design challenges due to their large number of parameters, complex operations, and the need for data optimization, and (2) Supporting the deployment of different machine learning frameworks to FPGA requires significant manual effort, consuming a large amount of time. In this paper, we propose AutoCompiler, a unified compiler for mapping NNs to different FPGAs, along with overlay techniques to enable fast and efficient implementation. To the best of our knowledge, we are the first work to support both Deep Neural Networks (DNNs) and Transformer-based networks for overlay-based FPGA deployment. AutoCompiler comprises three integrated enablers: (1) Model Translator, built on top of a topology-based NNs representation, which can optimize the topology and data representation of the models from an algorithmic level based on different hardware configurations, e.g., DSP utilization, (2) Instruction Generator, which generates pipeline data streams according to various FPGA resource configurations by manipulating the instruction set at the upper level rapidly, and (3) End-to-end optimization, which moves as much of the computational processes as possible onto the FPGA chip and minimizes the interaction between CPU and FPGA. Extensive experiments on various Xilinx FPGAs show that AutoCompiler outperforms state-of-the-art overlay-based compiler by 1.2× - 1.35× and same-level GPUs by 1.15× - 1.59× for classic DNN models, and ViT inference, respectively. © 2025 Copyright is held by the owner/author(s). Publication rights licensed to ACM.

关键词： Program compilers

来源：评论

学校读者我要写书评

暂无评论

Efficient Design Optimization for Diffractive Deep Neural Networks

引用

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 2025年第3期44卷 1199-1203页

作者： Wu, Kun Liu, Yuncheng Gao, Hui Tao, Jun Xiong, Wei Li, Xin Wuhan University School of Electronic Information Wuhan430072 China Huazhong University of Science and Technology Wuhan National Laboratory for Optoelectronics The School of Optical and Electronic Information Wuhan430074 China Optics Valley Laboratory of Hubei Wuhan430074 China Fudan University State Key Laboratory of Integrated Chips and System School of Microelectronics Shanghai200433 China Duke Kunshan University Data Science Research Center Jiangsu Kunshan215316 China

Since diffractive deep neural network (D2NN) provides a full optical solution to implement deep neural networks (DNNs), it offers ultrafast operation speed and virtually unlimited bandwidth, yielding an alternative-yet-competitive approach for computer-based neural networks. A D2NN is composed of several 3D-printed phase masks as hidden layers and a number of optical detectors at the output. To enable automatic and efficient design of D2NNs, we propose an iterative optimization method to determine the optimal design parameters of D2NNs. During each iteration step, we first optimize the physical parameters for masks (e.g., thicknesses) while fixing the detector parameters (e.g., locations). Next, we exhaustively search the detector parameters with fixed masks. These two steps are repeated until convergence is reached. Our numerical experiments demonstrate that the proposed optimization algorithm can produce a high-performance D2NN achieving 97% accuracy for recognizing handwritten digits. © 2024 IEEE.

关键词： Deep neural networks

来源：评论

学校读者我要写书评

暂无评论

Looking Clearer With Text: A Hierarchical Context Blending Network for Occluded Person Re-Identification

引用

IEEE Transactions on Information Forensics and Security 2025年 20卷 4296-4307页

作者： Wang, Changshuo Gao, Xingyu Wu, Meiqing Lam, Siew-Kei He, Shuting Tiwari, Prayag Jurong West 639798 Singapore Institute of Microelectronics Chinese Academy of Sciences Beijing100029 China University of Chinese Academy of Sciences School of Integrated Circuits Beijing101408 China Nanyang Technological University College of Computing and Data Science Jurong West 639798 Singapore Shanghai University of Finance and Economics School of Information Management and Engineering Shanghai200433 China Halmstad University School of Information Technology Halmstad30118 Sweden

Existing occluded person re-identification (re-ID) methods mainly learn limited visual information for occluded pedestrians from images. However, textual information, which can describe various human appearance attributes, is rarely fully utilized in the task. To address this issue, we propose a Text-guided Hierarchical Context Blending Network (THCB-Net) for occluded person re-ID. Specifically, at the data level, informative multi-modal inputs are first generated to make full use of the auxiliary role of textual information and make image data have a strong inductive bias for occluded environments. At the feature expression level, we design a novel Hierarchical Context Blending (HCB) module that can adaptively integrate shallow appearance features obtained by CNNs and multi-scale semantic features from visual transformer encoder. At the model optimization level, a Multi-modal Feature Interaction (MFI) module is proposed to learn the multi-modal information of pedestrians from texts and images, then guide the visual transformer encoder and HCB module to further learn discriminative identity information for occluded pedestrians through Image-Multimodal Contrastive (IMC) learning. Extensive experiments on standard occluded person re-ID benchmarks demonstrate that the proposed THCB-Net outperforms state-of-the-art methods. The code will be available soon. © 2005-2012 IEEE.

关键词： Reamers

来源：评论

学校读者我要写书评

暂无评论

Effect of energy back transfer from Er3+ to Yb3+ ions on the upconversion luminescence of Er:NaYb(MoO4)2 and Yb,Er:NaBi(MoO4)2

引用

Frontiers of Optoelectronics 2025年第1期18卷 1-10页

作者： Wang, Miaomiao Zhang, Mengyu Ding, Shoujun Hu, Haitang Zhang, Chuancheng Zou, Yong School of Microelectronics and Data Science Anhui University of Technology Maanshan China Anhui Provincial Joint Key Laboratory of Disciplines for Industrial Big Data Analysis and Intelligent Decision Maanshan China

Under the excitation of a 980 nm laser, the visible upconversion (UC) luminescence of Er3+ ions doped Yb3+ ions self-activated NaYb(MoO4)2 phosphor and crystal, as well as the Yb3+/Er3+ ions codoped NaBi(MoO4)2 crystal were investigated comprehensively. The results indicate that all three samples exhibit two significant green emission bands and a weak red emission band in the visible band corresponding to the transitions of 2H11/2/4S3/2 → 4I15/2 and 4F9/2 → 4I15/2 of Er3+ ions, respectively. Through the variable power density spectra of three different samples, the relationship between the energy back transfer (EBT) process of Yb3+-Er3+ ions and the power density point and Yb3+ ion concentration was investigated. The EBT process was observed in both the Er3+ ions doped Yb3+ ions self-activated NaYb(MoO4)2 phosphor and crystal, as confirmed by the luminescence image of the sample. At high power density, the Yb3+ ions self-activated sample exhibited yellow luminescence, with the crystal appearing later than the phosphor. In contrast, the NaBi(MoO4)2 crystal displayed bright green emission within the measured power density range. In addition, by monitoring the relative intensity change of Yb3+ emission in 5 at% Er3+:NaYb(MoO4)2 crystal, the generation of EBT process in self-activated samples at high power density is more directly explained. These experimental results provide a reliable basis for our comprehensive understanding of the EBT mechanism, and also provide a reliable direction for the final determination of the optimal excitation power density for optical temperature measurement.

关键词： Crystal Energy back transfer Phosphor Upconversion luminescence Yb3+/Er3+ cooping

来源：评论

学校读者我要写书评

暂无评论

6DMA-Aided Cell-Free Massive MIMO Communication

引用

IEEE Wireless Communications Letters 2025年第5期14卷 1361-1365页

作者： Shi, Xiaoming Shao, Xiaodan Zheng, Beixiong Zhang, Rui The Chinese University of HongKong School of Science and Engineering Guangdong Shenzhen518172 China University of Waterloo Department of Electrical and Computer Engineering WaterlooONN2L 3G1 Canada South China University of Technology School of Microelectronics Guangzhou511442 China The Chinese University of HongKong School of Science and Engineering Shenzhen Research Institute of Big Data Guangdong Shenzhen518172 China National University of Singapore Department of Electrical and Computer Engineering Singapore117583 Singapore

In this letter, we propose a six-dimensional movable antenna (6DMA)-aided cell-free massive multiple-input multiple-output (MIMO) system to fully exploit its macro spatial diversity, where a set of distributed access points (APs), each equipped with multiple 6DMA surfaces, cooperatively serve all users in a given area. Connected to a central processing unit (CPU) via fronthaul links, 6DMA-APs can optimize their combining vectors for decoding the users' information based on either local channel state information (CSI) or global CSI shared among them. We aim to maximize the average achievable sum-rate via jointly optimizing the rotation angles of all 6DMA surfaces at all APs, based on the users' spatial distribution. Since the formulated problem is non-convex and highly non-linear, we propose a Bayesian optimization-based algorithm to solve it efficiently. Simulation results show that, by enhancing signal power and mitigating interference through reduced channel cross-correlation among users, 6DMA-APs with optimized rotations can significantly improve the average sum-rate, as compared to the conventional cell-free network with fixed-position antennas and that with only a single centralized AP with optimally rotated 6DMAs, especially when the user distribution is more spatially diverse. © 2012 IEEE.

关键词： Convex optimization

来源：评论

学校读者我要写书评

暂无评论

Mixed-Cell-Height Placement with Minimum-Implant-Area and Drain-to-Drain Abutment Constraints 23

Mixed-Cell-Height Placement with Minimum-Implant-Area and Dr...

引用

Proceedings of the 60th Annual ACM/IEEE Design Automation Conference

作者： Guohao Chen Zheng Zeng Benchao Zhu Jiawei Li Kun Wang Jun Yu Jianli Chen School of Microelectronics Fudan University Shanghai China College of Computer and Data Science Fuzhou University Fuzhou China

ISBN: (纸本)9798350323481

In modern circuits, mixed-cell-height standard cells have been prevailing to meet various requirements and achieve better trade-offs among timing, power, and routability. Besides, the constraints of the minimum-implant-area (MIA) and drain-to-drain-abutment (DDA) arise as emerging challenges at advanced technology nodes. In this paper, we present an algorithm to address the mixed-cell-height placement problem with MIA and DDA constraints in three major stages: (1) post-global placement, (2) legalization, and (3) detailed placement. In the post-global stage, we first align mixed-cell-height standard cells to the desired rows by conjugate gradient method with dynamic step size and then reorder them by the shortest path algorithm to distribute the source nodes evenly. In the legalization stage, we propose a two-step combination algorithm to cluster cells and repack the clusters to minimize the wirelength, after which we presented a queue based method to address the inter-row MIA violations. In the detailed placement, an MIA-aware DDA reduction algorithm is adopted after multiregion partitioning to eliminate DDA violations without introducing MIA violations. Experimental results show that our algorithm can resolve all MIA and almost all DDA violations with a 13% reduction in displacement, a 4% reduction in HPWL, and 25% less runtime compared with the state-of-the-art work.

关键词： physical design

来源：评论

学校读者我要写书评

暂无评论

Thermal engineering in ALD-grown ZGO thin films for high-performance photodetectors

引用

材料科学技术（英文版） 2025年第6期209卷 19-26页

作者： Si-Tong Ding Yu-Chang Chen Cai-Yu Shi Lei Shen Qiu-Jun Yu Lang-Xi Ou Ze-Yu Gu Na Chen Ting-Yun Wang David Wei Zhang Hong-Liang Lu State Key Laboratory of ASIC and System Shanghai Institute of Intelligent Electronics & SystemsSchool of MicroelectronicsFudan UniversityShanghai 200433China Zhangjiang Fudan International Innovation Center Shanghai 201203China National Integrated Circuit Innovation Center Shanghai 201203China Key Laboratory of Specialty Fiber Optics and Optical Access Networks Shanghai Institute Communication and Data ScienceShanghai UniversityShanghai 200444China State Key Laboratory of ASIC and System Shanghai Institute of Intelligent Electronics & SystemsSchool of MicroelectronicsFudan UniversityShanghai 200433China Zhangjiang Fudan International Innovation Center Shanghai 201203China National Integrated Circuit Innovation Center Shanghai 201203China Jiashan Fudan Institute Jiaxing 314100China

Doped gallium oxide-based thin films are a class of wide-band semiconductor materials with the ad-vantages of chemically stable,tunable bandgap,and offer the benefit of ultraviolet *** order to obtain photodetectors(PDs)with superior response,higher demands are placed on the quality of growth and processing of doped *** this work,Zn-doped ternary metal oxide ZnGaO(ZGO)thin films were grown using the atomic layer deposition technique and annealed at different temperatures under an oxy-gen *** results showed that the high-quality ZGO films with good uniformity,high visible light transmittance,low roughness,and significant reduction of oxygen vacancies were obtained after ***,metal-semiconductor-metal PDs were prepared based on the studied ZGO *** responsivity(R),detectivity(D*),and external quantum efficiency(EQE)of the optimized device are 61.8 A W-1,1.2 x 1012 Jones,and 255.9％,*** to the unannealed device,the an-nealed ZGO PD achieves a maximum 309-fold increase in *** thermal engineering work may provide a strong reference for the development of low-cost,large-area,high-performance ultraviolet *** it also broadens the application of ternary metal oxides in optoelectronics.

关键词： Atomic layer deposition Oxygen annealing ZGO thin films Photodetector Ultraviolet detection

来源：评论

学校读者我要写书评

暂无评论

Dynamics of Baxter-Wu model

arXiv

引用

arXiv 2025年

作者： Tang, Chen Zhang, Wanzhou Ding, Chengxiang School of Microelectronics & Data Science Anhui University of Technology Maanshan243002 China College of Physics Taiyuan University of Technology Taiyuan030024 China

Using Monte Carlo simulations, we investigated the dynamical properties of the Baxter-Wu model under linear quench. For the linear cooling process, the scaling behavior of the excess energy excitation density in the critical region aligns well with the predictions of the Kibble-Zurek (KZ) mechanism. However, the scaling behavior of the excess energy excitation density at the end of linear cooling does not conform to a simple interplay between the KZ mechanism and the coarsening process;after exiting the impulse regime, the system undergoes a decay close to a power-law form, with a decaying exponent that is significantly different from the coarsening exponent observed in instantaneous quenching. For the linear heating process, we found that if the initial state is the ground state of the model, the relevant exponents describing the KZ mechanism are identical to those in the cooling scenario. We find that the system does not directly enter the adiabatic regime after leaving the impulse regime but instead passes through a crossover regime with exponential decay of the excess energy excitation density. If the initial state is ordered but not the ground state of the system, the energy excitation density still exhibits good scaling behavior, but the relevant exponents do not conform to the predictions of the KZ mechanism. We found that this discrepancy is related to the peculiar zero-temperature dynamical properties arising from the unique ground states of the model. © 2025, CC BY.

关键词： Coarsening

来源：评论

学校读者我要写书评

暂无评论

Ultrathin metal–organic framework synergizes with carbon quantum dots improving photoelectrochemical water oxidation and tetracycline hydrochloride degradation performance

引用

Separation and Purification Technology 2025年 359卷

作者： Wang, Ruyi Li, Xingzhi Kan, Yuxin Fang, Wenjun Chen, Caiyun Chen, Yongyan Wang, Lingling Jia, Yong School of Energy and Environment Anhui University of Technology Ma Anshan 243002 China School of Microelectronics & Data Science Anhui University of Technology Ma Anshan 243002 China School of Public Management and Law Anhui University of Technology Ma Anshan 243002 China

Finding clean dual functional materials which can simultaneously alleviate energy and environmental issues is currently a research hotspot. In our work, TiO2/CQDs/NH2-MIL-125 photoanode system was constructed to explore the application of metal–organic frameworks (MOFs) materials in water splitting and biomedical wastewater treatment. The photocurrent density of the optimal TiO2/CQDs/NH2-MIL-125 photoanode reaches 1.7 mA/cm2 at 1.23 V vs. RHE, which is about 1.8 times that of pristine TiO2. More importantly, optimized photoanode displays an excellent remove ratio toward tetracycline hydrochloride of 74 % within 60 min. Through mechanism exploration, the excellent performance is attributed to the narrow band gap of NH2-MIL-125 widens the light absorption range to the visible region. Additionally, the specific electron conduction behavior of CQDs and the type Ⅱ heterojunction between TiO2/NH2-MIL-125 inhibited the photogenerated electron-hole recombination. This work explores the application of photoelectrochemical (PEC) materials in environmental catalytic clean production. © 2024 Elsevier B.V.

关键词： Nanocrystals

来源：评论

学校读者我要写书评

暂无评论

OAM optical fiber transmission with reduced bit error rate based on turbo code encoding/decoding and deep learning demodulation

引用

Optics and Lasers in Engineering 2025年 193卷

作者： Hu, Junbao Pan, Hanyu Mo, Xutao Wang, Dong Huang, Xianshan Lei, Yu Department of Optoelectronic Engineering School of Microelectronics & Data Science Anhui University of Technology Anhui Ma'anshan243002 China Innovation and Entrepreneurship College Anhui University of Technology Anhui Ma'anshan243002 China

Deep learning-assisted OAM optical fiber transmission has become a hotspot because of its end-to-end and high-accurate demodulation characteristics. Recent studies report that nearly 100% recognition rate of demodulation can be achieved, but the actual bit error rate (BER) of data transmission is not very low. In order to maintain a high-accurate demodulation with high-fidelity transmission performance, we propose a feasible scheme that combines turbo code encoding/decoding and deep learning demodulation for OAM optical fiber communications. In the scheme, a turbo code encoder/decoder is designed as a bit error corrector and a pre-trained deep learning model is induced as an OAM mode demodulator, which ensures the high-accurate demodulation performance of OAM and the high-fidelity data transmission with reduced BER of the system. To verify the proposed scheme, we experimentally built an OAM optical fiber transmission system and transmitted a 256-grayscale image based on the system. A recognition rate of 99.69% and a transmission BER of 1.32 × 10–3 demonstrate the excellent performance. In addition, better transmission performance can be achieved when combined with an improved OAM mapping strategy. Our scheme can be a new perspective for high-performance OAM fibre transmission. © 2025 Elsevier Ltd

关键词： Fiber to the x

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：