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Pose Robust Low-resolution Face Recognition via Coupled Kernel-based Enhanced Discriminant Analysis

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IEEE/CAA Journal of Automatica Sinica 2016年第2期3卷 203-212页

作者： Xiaoying Wang Haifeng Hu jianquan gu the School of Information Science and Technology Sun Yat-sen University

Most face recognition techniques have been successful in dealing with high-resolution (HR) frontal face images. However, real-world face recognition systems are often confronted with the low-resolution (LR) face images with pose and illumination variations. This is a very challenging issue, especially under the constraint of using only a single gallery image per person. To address the problem, we propose a novel approach called coupled kernel-based enhanced discriminant analysis (CKEDA). CKEDA aims to simultaneously project the features from LR non-frontal probe images and HR frontal gallery ones into a common space where discrimination property is maximized. There are four advantages of the proposed approach: 1) by using the appropriate kernel function, the data becomes linearly separable, which is beneficial for recognition; 2) inspired by linear discriminant analysis (LDA), we integrate multiple discriminant factors into our objective function to enhance the discrimination property; 3) we use the gallery extended trick to improve the recognition performance for a single gallery image per person problem; 4) our approach can address the problem of matching LR non-frontal probe images with HR frontal gallery images, which is difficult for most existing face recognition techniques. Experimental evaluation on the multi-PIE dataset signifies highly competitive performance of our algorithm. © 2014 Chinese Association of Automation.

关键词： Discriminant analysis Image matching Probes

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加快构建中原经济区自主创新支撑体系

中州学刊 2011年第2期 69-73页

作者：谷建全河南省社会科学院

中原经济区建设是河南科学发展的重要载体和平台,自主创新体系是中原经济区建设的重要支撑,自主创新体系既包括创新要素、基础机构、创新主体、创新机制和创新环境等内容,也涵盖学术、科研、技术、产业、市场、政策、文化等多个范畴和... 详细信息

中原经济区建设是河南科学发展的重要载体和平台,自主创新体系是中原经济区建设的重要支撑,自主创新体系既包括创新要素、基础机构、创新主体、创新机制和创新环境等内容,也涵盖学术、科研、技术、产业、市场、政策、文化等多个范畴和环节。构建中原经济区自主创新体系重在加强科研创新体系、技术创新体系、创新服务体系、创新支撑条件、宏观管理体系和自主创新环境建设。

关键词：中原经济区自主创新创新体系建设

The Inherent Law of the Unpredictability of Financial Asset Price Fluctuations: Multistability and Chaos

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Journal of Systems Science & Complexity 2024年第2期37卷 776-804页

作者： gu Enguo Huanghe University of Science and Technology Zhengzhou 450006China

This paper aims at understanding the price dynamics generated by the interaction of traders relying on heterogeneous expectations in an asset pricing *** the present work the authors analyze a financial market populated by five types of boundedly rational speculators-two types of fundamentalists,two types of chartists and trend followers which submit buying/selling orders according to different trading *** authors formulate a stock market model represented as a 2 dimensional piecewise linear discontinuous *** proposed contribution to the existing financial literature is two ***,the authors perform study of the model involving a 2 dimensional piecewise linear discontinuous map through a combination of qualitative and quantitative *** authors focus on the existence conditions of chaos and the multi-stability regions in parameter *** border collision bifurcation curves and basins of multi-attractors are also *** authors find that chaos or quasi-period exists only in the case of fixed point being a saddle(regular or flip)and that the coexistence of multiple attractors may exist when the fixed point is an attractor,but it is common for spiral and flip fixed points.

关键词： BCB curve chaos financial market heterogeneous agents multiple attractors piecewise linear discontinuous map

高质量发展背景下国家自主创新示范区体制机制创新问题研究

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中州学刊 2020年第10期 26-31页

作者：谷建全彭俊杰河南省社会科学院郑州450002 河南省社会科学院城市与环境研究所郑州450002

国家自主创新示范区是新时代加快推进创新发展的核心载体和重要抓手。体制机制创新具有示范效应、融通效应和协同效应,是强化并发挥国家自主创新示范区的核心载体作用、推动高质量发展的关键所在。各地国家自主创新示范区建设具有注重... 详细信息

国家自主创新示范区是新时代加快推进创新发展的核心载体和重要抓手。体制机制创新具有示范效应、融通效应和协同效应,是强化并发挥国家自主创新示范区的核心载体作用、推动高质量发展的关键所在。各地国家自主创新示范区建设具有注重科学谋划顶层设计、营造良好营商环境、推行先进管理模式、搭建各种平台载体等共性特征。在高质量发展背景下,推进国家自主创新示范区体制机制创新要正确处理好政府与市场、整体与部分、管理与服务、活力与秩序的“四个关系”,从强化顶层设计、完善激励机制、提高资源配置、加强复制推广、实施统筹联动等方面进行路径创新。

关键词：高质量发展国家自主创新示范区体制机制创新内在逻辑实现路径

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基于公司权力视角下的公司治理研究

中州学刊 2007年第3期 64-66页

作者：谷建全张晓峰武汉大学经济与管理学院湖北武汉430072 山东大学管理学院山东济南250000

从公司权力的角度看,公司治理本质上是公司权力的治理,是反映公司权力配置的一套制度安排。以此来分析公司治理问题,能够更好地理解企业与市场的边界;能够把组织结构纳入到公司治理的研究中来,为其提供更为完整的研究图景。

关键词：公司权力权力配置组织结构公司治理

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近地气层土壤热交换的数值计算方法探讨

数学的实践与认识 1999年第3期29卷 74-79页

作者：古建泉番禺市农业中等专业学校 511400

本文应用辛卜生数值积分的方法求解热传导方程中的偏微分项,推导出计算土壤热交换中的两个重要物理量——土壤导温率和土壤热通量,从理论上分析了它与目前热平衡台站规范法(拉氏法)的异同。指出拉氏方法中对土壤容积热容量的不同假设,... 详细信息

本文应用辛卜生数值积分的方法求解热传导方程中的偏微分项,推导出计算土壤热交换中的两个重要物理量——土壤导温率和土壤热通量,从理论上分析了它与目前热平衡台站规范法(拉氏法)的异同。指出拉氏方法中对土壤容积热容量的不同假设,必定给计算结果带来较大的误差,而本文提出的这一方法就不存在这一问题;它的另一优点是在计算通过20厘米处的热通量时考虑了二阶微分项的作用,即温度的非线性作用且该方法有较大的适用范围。

关键词：土壤热交换数值计算热通量导温率近地气层

Volume of fluid simulation of single argon bubble dynamics in liquid steel under RH vacuum conditions

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Journal of Iron and Steel Research International 2024年第4期31卷 828-837页

作者： gu-jun Chen Sheng-ping He College of Materials Science and Engineering Yangtze Normal UniversityChongqing 400044China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China

Single argon bubble dynamics in liquid steel under Ruhrstahl-Heraeus(RH)vacuum conditions were simulated using the volume of fluid method,and the ideal gas law was used to consider bubble growth due to heat transfer and pressure *** simulation with a constant bubble density was also performed to validate the numerical method,and the predicted terminal bubble shape and velocity were found to agree with those presented in the Grace diagram and calculated by drag correlation,*** simulation results under RH conditions indicate that the terminal bubble shape and velocity cannot be *** primary bubble growth occurs within a rising distance of 0.3 m owing to heating by the high-temperature liquid steel;subsequently,the bubble continues to grow under equilibrium with the hydrostatic *** the initial diameter is 8-32 mm,the bubble diameter and rising velocity near the liquid surface are 80-200 mm and 0.5-0.8 m/s,*** bubble rises rectilinearly with an axisymmetric shape,and the shape evolution history includes an initial sphere,(dimpled)ellipsoid,and spherical cap with satellite bubbles.

关键词： Bubble dynamics Liquid steel Volume of fluid Bubble growth Bubble shape Rising velocity

Ultra-simplified diffraction-based computational spectrometer

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Light(Science & Applications) 2024年第6期13卷 1022-1031页

作者： Chuangchuang Chen Honggang gu Shiyuan Liu State Key Laboratory of Intelligent Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhanHubei430074China Optics Valley Laboratory WuhanHubei430074China

Miniaturizing spectrometers for compact and cost-effective mobile platforms is a major challenge in current spectroscopy research,where conventional spectrometers are impractical due to their bulky *** miniaturized designs primarily rely on precalibrated response functions of nanophotonic structures to encode spectral information captured in a snapshot by detector *** spectrum reconstruction is achieved through computational techniques,but this requires precise component design,high-precision fabrication,and *** propose an ultra-simplified computational spectrometer that employs a one-to-broadband diffraction decomposition strategy facilitated by a numerical regularized transform that depends only on the spectrum of the diffracted *** key feature of our design is the use of a simple,arbitrarily shaped pinhole as the partial disperser,eliminating the need for complex encoding designs and full spectrum *** spectrometer achieves a reconstructed spectral peak location accuracy of better than 1 nm over a 200 nm bandwidth and excellent resolution for peaks separated by 3 nm in a bimodal spectrum,all within a compact footprint of under half an ***,our approach also reveals a breakthrough in broadband coherent diffractive imaging without requiring any prior knowledge of the broadband illumination spectrum,assumptions of non-dispersive specimens,or correction for detector quantum efficiency.

关键词： simplified spectrum illumination

An internal ballistic model of electromagnetic railgun based on PFN coupled with multi-physical field and experimental validation

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Defence Technology（防务技术） 2024年第2期32卷 254-261页

作者： Benfeng gu Haiyuan Li Baoming Li National Key Laboratory of Transient Physics Nanjing University of Science and TechnologyNanjing 210094China

To accelerate the practicality of electromagnetic railguns,it is necessary to use a combination of threedimensional numerical simulation and experiments to study the mechanism of bore *** this paper,a three-dimensional numerical model of the augmented railgun with four parallel unconventional rails is introduced to simulate the internal ballistic process and realize the multi-physics field coupling calculation of the rail gun,and a test experiment of a medium-caliber electromagnetic launcher powered by pulse formation network(PFN)is carried *** test methods such as spectrometer,fiber grating and high-speed camera are used to test several parameters such as muzzle initial velocity,transient magnetic field strength and stress-strain of *** the simulation results and experimental data,the damage condition of the contact surface is analyzed.

关键词： Internal ballistic modeling Electromagnetic rail gun Multi-physics field coupling Experimental validation PFN