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Online multiple instance regression

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Chinese physics B 2013年第9期22卷 656-661页

作者：王志岗赵增顺张长水 department of Automation Tsinghua UniversityState Key Laboratory of Intelligent Technologie and SystemsTsinghua National Laboratory for Information Science and Technology college of information and Electrical {2. Shandong University of Science and Technology School of Control Science and engineering Shandong University

The multiple instance regression problem has become a hot research topic recently. There are several approaches to the multiple instance regression problem, such as Salience, Citation KNN, and MI-ClusterRegress. All of these solutions work in batch mode during the training step. However, in practice, examples usually arrive in sequence. Therefore, the training step cannot be accomplished once. In this paper, an online multiple instance regression method ＂OnlineMIR＂ is proposed. OnlineMIR can not only predict the label of a new bag, but also update the current regression model with the latest arrived bag. The experimental results show that OnlineMIR achieves good performances on both synthetic and real data sets.

关键词： mutiple instance regression online learning

Probing quantum causality with geometric asymmetry in spatial-temporal correlations

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Science china(information Sciences) 2024年第9期67卷 294-305页

作者： Yu MENG Zheng-Hao LIU zhikuan ZHAO Peng YIN Yi-Tao wang Wei LIU zhi-Peng LI Yuan-Ze YANG Zhao-An wang Jin-Shi XU Shang YU Jian-shun TANG Chuan-Feng LI Guang-Can GUO CAS Key Laboratory of Quantum information University of Science and Technology of China CAS Center for Excellence in Quantum information and Quantum physics University of Science and Technology of China department of Computer Science Eidgen?ssische Technische Hochschule Zürich Hefei National Laboratory department of physics Imperial College London Research Center for Quantum Sensing Zhejiang Lab

Causation promotes the understanding of correlation to an advanced stage by elucidating its underlying mechanism. Although statisticians have specified the possible causal relations among correlations,inferring causal structures is impossible from only the observed correlations in the classical world. Quantum correlations encapsulating the most defining aspects of quantum physics have taken a new turn for the causal inference problem — the two-point spatial and temporal quantum correlations with observationally discernible characteristics correspond exactly to the two most basic causal structures. However, a direct causal interpretation for quantum correlations has only been established in very limited cases. Here, we explore to what extent quantum correlations promote causal inference. Theoretically, we have found that the distinguishable causal regime of two-point Pauli correlations can be expanded from a single value to an asymmetric interval, and the causal structures determining the quantum correlations can be interpreted by a simple distance criterion. Experimentally, we have devised and implemented a versatile non-unital quantum channel in an optical architecture to directly observe such an asymmetric interval. The setup enabled quantum causal inference without any requirement of active intervention, which is impossible in the classical realm. Our work facilitates the identification of causal links among quantum variables and provides insight into characterizing causation and spatial-temporal correlation in quantum mechanics.

关键词： causality quantum information quantum channel channel-state duality non-unital channel

The In-Flight Realtime Trigger and Localization Software of GECAM

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Research in Astronomy and Astrophysics 2024年第10期24卷 11-24页

作者： Xiao-Yun Zhao Shao-Lin Xiong Xiang-Yang Wen Xin-Qiao Li Ce Cai Shuo Xiao Qi Luo Wen-Xi Peng Dong-Ya Guo Zheng-Hua An Ke Gong Jin-Yuan Liao Yan-Qiu Zhang yue Huang Lu Li xing Wen Fei Zhang Jing Duan Chen-Wei {2. Dong-Li Shi Peng Zhang Qi-Bin Yi Chao-Yang Li Yan-Bing Xu Xiao-Hua Liang Ya-Qing Liu Da-Li Zhang Xi-Lei Sun Fan Zhang Gang Chen Huan-Yu {2. Sheng Yang Xiao-Jing Liu Min Gao Mao-shun Li Jin-Zhou {2. xing Zhou Yi Zhao {2.-Chen Xue Chao Zheng Jia-Cong Liu xing-Bo Han Jin-Ling Qi Jia Huang Ke-Ke Zhang Can Chen Xiong-Tao Yang Dong-Jie Hou Yu-Sa {2. Rui Qiao Xiang Ma Xiao-Bo Li Ping {2. Xin-Ying Song Li-Ming Song Shi-Jie Zheng Bing Li Hong-Mei Zhang yue Zhu Wei Chen Jian-Jian He Zhen Zhang Jin Hou Hong-Jun {2. Yan-Chao Hao Xiang-Yu {2. Zong-Yuan Yang zhi-Long Wen zhi Chang Yuan-Yuan Du Rui Gao Xiao-Fei Lan Yan-Guo Li Gang Li Xu-Fang Li Fang-Jun Lu Hong Lu Bin Meng Feng Shi Hui {2. Hui-Zhen {2. Yu-Peng Xu Jia-Wei Yang Xue-Juan Yang Shuang-Nan Zhang Chao-yue Zhang Cheng-Mo Zhang zhi-Cheng Tang Cheng Cheng Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China School of information Science and Technology Southwest Jiaotong UniversityChengdu 611756China Key Laboratory of Stellar and Interstellar physics and department of physics Xiangtan UniversityXiangtan 411105China physics and Space Science college China West Normal UniversityNanchong 637002China department of Astronomy Beijing Normal UniversityBeijing 100875China Innovation Academy for Microsatellites of CAS Shanghai 201203China Changchun university of Science and Technology Changchun 130022China Chinese Academy of Sciences South America Center for Astronomy National Astronomical ObservatoriesCASBeijing 100101China

Realtime trigger and localization of bursts are the key functions of GECAM,an all-sky gamma-ray monitor launched on 2.2. December *** developed a multifunctional trigger and localization software operating in the CPU of the GECAM Electronic *** onboard software has the following features:high trigger efficiency for real celestial bursts with a suppression of false triggers caused by charged particle bursts and background fluctuation,dedicated localization algorithm optimized for both short and long bursts,and low time latency of the trigger information which is downlinked through the Global Short Message Communication service of the global BeiDou navigation *** paper provides a detailed description of the design and development of the trigger and localization software system for *** covers the general design,workflow,the main functions,and the algorithms used in the *** paper also includes on-ground trigger tests using simulated gamma-ray bursts generated by a dedicated X-ray tube,as well as an overview of the performance for real celestial bursts during its in-orbit operation.

关键词： telescopes instrumentation:detectors methods:observational

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高频补偿倾斜电极型宽带声光叉指换能器

中国激光 2004年第1期31卷 33-36页

作者：林航友宁继平胡鸿璋王顺权耿凡天津大学精密仪器与光电子工程学院天津大学应用物理系天津300072 航天部8358研究所第三院天津300192

提出了一种新型的宽带声光表面波叉指换能器 (SAW IDT) ,该换能器应用双梯形倾斜电极 ,可对单梯形倾斜电极IDT通带的高频成分进行补偿 ,使通带更宽更平直 ,并无需外补偿网络。通过计算机模拟得出IDT的优化高频补偿因子 ρ=0 12.及其他... 详细信息

提出了一种新型的宽带声光表面波叉指换能器 (SAW IDT) ,该换能器应用双梯形倾斜电极 ,可对单梯形倾斜电极IDT通带的高频成分进行补偿 ,使通带更宽更平直 ,并无需外补偿网络。通过计算机模拟得出IDT的优化高频补偿因子 ρ=0 12.及其他的优化参数。该器件以Y切X传Ti扩散LiNbO3 作为光波导 ,以～ 15 0nm厚的SiO2./In2.O3 薄膜作为声波导 ,声孔径W0 =110 μm ,叉指对数 N =9。IDT的中心频率为 187 7MHz,Bragg声光带宽为 5 5 3MHz,通带斜率为 0 0 0 ,通带凹陷深度 1 0dB。当模转换效率为 99%时 ,测得射频 (RF)驱动功率为 4 5mW ,该器件可望作为 1 15～ 1 6 5

关键词：集成光学声光可调谐滤波器声光表面波叉指换能器声光频谱分析仪高频补偿倾斜电极型

Zincophilic Ti_(3)C_(2.Cl_(2.MXene and anti-corrosive Cu NPs for synergistically regulated deposition of dendrite-free Zn metal anode

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Journal of Materials Science & Technology 2024年第2期169卷 137-147页

作者： Yunfei Shen Yi Liu Kaisheng Sun Tiantian Gu Gang wang yue Yang Jianxiang Pang Yang Zheng Xiaodong Yang Long Chen Key Laboratory for Green Process of Chemical engineering of Xinjiang Bingtuan School of Chemistry and Chemical EngineeringShihezi UniversityShihezi 832003China Institute for Chemistry Chemnitz University of TechnologyChemnitz 09107Germany CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Key Laboratory of Electronic Information Materials and DevicesCenter of Materials Science and Optoelectronics EngineeringXinjiang Technical Institute of Physics and Chemistry of CASUrumqi 830011China Key Laboratory of Ecophysics and department of physics College of ScienceShihezi UniversityShihezi 832003China

Dendrites growth,chemical corrosion,and hydrogen evolution reaction(HER)on zinc anodes are the main barriers for the development of aqueous zinc-ion batteries(AZIBs).Constructing interfacial protec-tive layer is an effective way to alleviate the side reactions on the ***,Cu/Ti_(3)C_(2.Cl_(2.MXene(CMX)with high zincophilic and hydrophobic property is prepared by the lewis molten salts etching method,and the CMX interface protection layer is constructed by a simple spin *** CMX coat-ing layer can provide abundant nucleation sites and uniformize the charge distribution through the zin-cophilic Ti_(3)C_(2.Cl_(2.MXene matrix,leading to homogenous Zn *** addition,the hydrophobic coat-ing contained anti-corrosive Cu nanoparticles can prevent the Zn anode from the electrolyte,beneficial for suppressing the chemical corrosion and ***,the stable and reversible Zn plating/stripping is achieved for the Zn anode coated by the CMX,which exhibits the lifespan of over 1400 h at 0.5 mA cm^(−2.,and even can steadily run for 700 h with 65 mV at 10 mA cm^(−2..Furthermore,CMX@Zn shows a high coulombic efficiency of over 100%for 3800 cycles,which indicates that the CMX@Zn electrode has excellent stability and reversibility of Zn stripping/*** full batteries assembled with ZnCoMnO/C(ZCM)cathodes also exhibits higher capacity(450.6 mAh g^(−1)at 0.1 A g^(−1))and cycle stability(capacity retention of 70%after 1500 cycles).This work enhanced the lifespan of AZIBs and broaden the research of multifunctional coating layer to other secondary batteries based on metal anodes.

关键词： Zinc anode Spin coating Zincophilic MXene Anti-corrosive Cu NPs Multifunctional coating

Two-dimensional materials for future information technology: status and prospects

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Science china(information Sciences) 2024年第6期67卷 1-147页

作者： Hao QIU zhihao YU Tiange ZHAO Qi ZHANG Mingsheng XU Peifeng LI Taotao LI Wenzhong BAO Yang CHAI Shula CHEN Yiqi CHEN Hui-Ming CHENG Daoxin DAI Zengfeng DI Zhuo DONG Xidong DUAN Yuhan FENG Yu FU Jingshu GUO Pengwen GUO yue HAO Jun HE Xiao HE Jingyi HU Weida HU Zehua HU Xinyue HUANG Ziyang HUANG Ali IMRAN Ziqiang KONG Jia LI Qian LI Weisheng LI Lei LIAO Bilu LIU Can LIU Chunsen LIU Guanyu LIU Kaihui LIU Liwei LIU Sheng LIU Yuan LIU Donglin LU Likuan MA Feng MIAO Zhenhua NI Jing NING Anlian PAN Tian-Ling REN Haowen SHU Litao SUN yue SUN Quanyang TAO Zi-Ao TIAN Dong wang Hao wang Haomin wang Jialong wang Junyong wang Wenhui wang xingjun wang Yeliang wang Yuwei wang Zhenyu wang Yao WE... School of Electronic Science and engineering Nanjing University School of Integrated Circuits Interdisciplinary Research Center for Future Intelligent Chips (Chip-X)Nanjing University School of Integrated Circuit Science and engineering Nanjing University of Posts and Telecommunications State Key Laboratory of Infrared physics Shanghai Institute of Technical Physics Chinese Academy of Sciences School of physics and Key Lab of Quantum Materials and Devices of the Ministry of Education School of Electronic Science & EngineeringSoutheast University college of Integrated Circuits State Key Laboratory of Silicon and Advanced Semiconductor MaterialsZhejiang University Suzhou Laboratory State Key Laboratory of Integrated Chips and Systems School of MicroelectronicsFudan University Shaoxin Laboratory department of Applied physics The Hong Kong Polytechnic University Key Laboratory for Micro-Nano physics and Technology of Hunan Province College of Materials Science and EngineeringHunan University college of Integrated Circuits Zhejiang University Shenzhen Geim Graphene Center Shenzhen Key Laboratory of Layered Materials for Value-Added ApplicationsTsinghua-Berkeley Shenzhen Institute & Institute of Materials ResearchTsinghua Shenzhen International Graduate SchoolTsinghua University State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZijingang CampusZhejiang University National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics (SINANO)Chinese Academy of Sciences college of Chemistry and Chemical engineering Hunan University Key Laboratory of Quantum State Construction and Manipulation (Ministry of Education) Department of PhysicsRenmin University of China School

Over the past 70 years, the semiconductor industry has undergone transformative changes,largely driven by the miniaturization of devices and the integration of innovative structures and materials. Two-dimensional(2.) materials like transition metal dichalcogenides(TMDs) and graphene are pivotal in overcoming the limitations of silicon-based technologies, offering innovative approaches in transistor design and functionality, enabling atomic-thin channel transistors and monolithic 3D integration. We review the important progress in the application of 2. materials in future information technology, focusing in particular on microelectronics and optoelectronics. We comprehensively summarize the key advancements across material production, characterization metrology, electronic devices, optoelectronic devices, and heterogeneous integration on silicon. A strategic roadmap and key challenges for the transition of 2. materials from basic research to industrial development are outlined. To facilitate such a transition, key technologies and tools dedicated to 2. materials must be developed to meet industrial standards, and the employment of AI in material growth, characterizations, and circuit design will be essential. It is time for academia to actively engage with industry to drive the next 10 years of 2. material research.

关键词： two-dimensional (2.) materials information technology production technology standardization of characterization microelectronic devices optoelectronic devices multi-functional integration

Patch-guided facial image inpainting by shape propagation

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Journal of Zhejiang university-Science A(Applied physics & {2.) 2009年第2期10卷 232-238页

作者： yue-ting ZHUANG Yu-shun {2. Timothy K. SHIH Nick C. TANG Institute of Artilicial Intelligence School of Computer Science and Technology Zhejiang University Hangzhou 310027 China department of Compter Science National Taipei university of Education Taipei 10671 Taiwan China department of Comp.ter Science and information {2. Tamkang University Taipei 25137 Taiwan China

Images with human faces comprise an essential part in the imaging realm. Occlusion or damage in facial portions will bring a remarkable discomfort and information loss. We propose an algorithm that can repair occluded or damaged facial images automatically, named ‘facial image inpainting＇. Inpainting is a set of image processing methods to recover missing image portions. We extend the image inpainting methods by introducing facial domain knowledge. With the support of a face database, our approach propagates structural information, i.e., feature points and edge maps, from similar faces to the missing facial regions. Using the interred structural information as guidance, an exemplar-based image inpainting algorithm is employed to copy patches in the same face from the source portion to the missing portion. This newly proposed concept of facial image inpainting outperforms the traditional inpainting methods by propagating the facial shapes from a face database, and avoids the problem of variations in imaging conditions from different images by inferring colors and textures from the same face image. Our system produces seamless faces that are hardly seen drawbacks.

关键词： Image inpainting Face reconstruction Feature point extraction

Visible-light stimulated synaptic plasticity in amorphous indium−gallium−zinc oxide enabled by monocrystalline double perovskite for high-performance neuromorphic applications

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Nano Research 2023年第1期16卷 1304-1312页

作者： Fu Huang Feier Fang yue Zheng Qi You henan Li Shaofan Fang Xiangna Cong Ke Jiang Ye {2. Cheng Han Wei Chen Yumeng Shi International Collaborative Laboratory of 2. Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China college of Electronics and information {2. Shenzhen UniversityShenzhen 518060China Key Laboratory of Material physics Ministry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China department of physics National University of SingaporeSingapore 117542Singapore department of Chemistry National University of SingaporeSingapore 117543Singapore Joint School of National university of Singapore and Tianjin university International Campus of Tianjin UniversityBinhai New CityFuzhou 350207China

Photoelectric synaptic devices have been considered as one of the key components in artificial neuromorphic systems due to their excellent capability to emulate the functions of visual neurons,such as light perception and image ***,we demonstrate an optically-stimulated artificial synapse with a clear photoresponse from ultraviolet to visible light,which is established on a novel heterostructure consisting of monocrystalline Cs2.gBiBr6 perovskite and indium–gallium–zinc oxide(IGZO)thin *** compared with pure IGZO,the heterostructure significantly enhances the photoresponse and corresponding synaptic plasticity of the devices,which originate from the superior visible absorption of single-crystal Cs2.gBiBr6 and effective interfacial charge transfer from Cs2.gBiBr6 to IGZO.A variety of synaptic behaviors are realized on the fabricated thin-film transistors,including excitatory postsynaptic current,paired pulse facilitation,short-term,and long-term ***,an artificial neural network is simulated based on the photonic potentiation and electrical depression effects of synaptic devices,and an accuracy rate up to 83.8%±1.2.for pattern recognition is *** finding promises a simple and efficient way to construct photoelectric synaptic devices with tunable spectrum for future neuromorphic applications.

关键词： artificial optoelectronic synapse monocrystalline Cs2.gBiBr6 thin-film transistors ultraviolet-to-visible neuromorphic computing

Quantum key distribution transmitter chip based on hybrid-integration of silica and lithium niobates

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Chinese physics B 2022年第6期31卷 415-421页

作者： Xiao Li Liang-Liang wang Jia-shun Zhang Wei Chen {2. wang Dan Wu Jun-Ming An State Key Laboratory on Integrated Optoelectronics Institute of SemiconductorsChinese Academy of Sciences(CAS)Beijing 100083China college of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijing 100049China Center of Materials Science and Optoelectronics engineering University of Chinese Academy of SciencesBeijing 100049China CAS Key Laboratory of Quantum information University of Science and Technology of ChinaHefei 230026China

A quantum key distribution transmitter chip based on hybrid-integration of silica planar light-wave circuit(PLC)and lithium niobates(LN)modulator PLC is *** silica part consists of a tunable directional coupler and 400-ps delay line,and the LN part is made up of a Y-branch,with electro-optic modulators on both *** two parts are facet-coupled to form an asymmetric Mach-Zehnder *** successfully encode and decode four BB84 states at 156.2.-MHz repetition *** phase-encoding of 0 orπis achieved,with interference fringe visibilities 78.53%and 82.68%for states|+〉and|-〉,*** the aid of an extra off-chip LN intensity modulator,two time-bin states are prepared and the extinction ratios are 18.65 dB and 15.46 dB for states|0〉and|1〉,respectively.

关键词： quantum key distribution hybrid-integration BB84