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一种多机协同工作支撑环境的设计与实现

计算机工程与应用 2003年第21期39卷 126-128页

作者：彭靖龙郑纬民毛希平清华大学计算机科学与技术系北京100084

在目前支持Internet上大规模应用方面,多采用商业的并行服务器与机群系统,该类系统具有较好的性能,但对用户自由定制的支持稍显欠缺。该文提出并分析了一种多机协同工作支撑环境,支持用户对多机协同工作的自由定制。

关键词：节点组成员协议 Internet 多机协同工作支撑环境

An improved cross-domain role mapping mechanism

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An improved cross-domain role mapping mechanism

2.10 International Conference on Circuit and Signal Processing (ICCSP 2.10) & 2.10 Second IITA International Joint Conference on Artificial Intelligence (IITA-JCAI 2.10)

作者： Jun zheng,Yichun Chen School of computer {2. and technology beijing Institute of technology beijing 100081,china Qikun Zhang,Yuan TAN and Qiongxin Liu School of computer {2. and technology beijing Institute of technology beijing 100081,china

Aimed at the aberrations of inter-domain role mapping issues including privilege-aberration and role aberration,an improved inter-domain role mapping mechanism was purposed in this article,and it can guarantee the consistency of the user privilege and the relationships among *** makes utility of the role-privilege relation,and maintains a "permitted privilege list" and a "forbidden privilege list" for each role,and thus provides more flexibility for role mapping,and it can determine whether a certain role-mapping is legal within constant time using closure algorithm,and to make that algorithm more efficiency,a pre-calculation method is purposed.

关键词： role mapping inter-domain role-privilege utility

Liquid lens based holographic camera for real 3D scene hologram acquisition using end-to-end physical model-driven network

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Light(science & Applications) 2024年第3期13卷 488-497页

作者： Di Wang Zhao-Song Li Yi zheng You-Ran Zhao Chao Liu Jin-Bo Xu Yi-Wei zheng Qian Huang Chen-Liang Chang Da-Wei Zhang Song-Lin Zhuang Qiong-Hua Wang School of Instrumentation and Optoelectronic Engineering Beihang UniversityBeijing 100191China School of Optical-Electrical and computer Engineering University of Shanghai for Science and TechnologyShanghai 200093China

With the development of artificial intelligence,neural network provides unique opportunities for holography,such as high fidelity and dynamic *** to obtain real 3D scene and generate high fidelity hologram in real time is an urgent ***,we propose a liquid lens based holographic camera for real 3D scene hologram acquisition using an end-to-end physical model-driven network(EEPMD-Net).As the core component of the liquid camera,the first 10 mm large aperture electrowetting-based liquid lens is proposed by using specially fabricated *** design of the liquid camera ensures that the multi-layers of the real 3D scene can be obtained quickly and with great imaging *** EEPMD-Net takes the information of real 3D scene as the input,and uses two new structures of encoder and decoder networks to realize low-noise phase *** comparing the intensity information between the reconstructed image after depth fusion and the target scene,the composite loss function is constructed for phase optimization,and the high-fidelity training of hologram with true depth of the 3D scene is realized for the first *** holographic camera achieves the high-fidelity and fast generation of the hologram of the real 3D scene,and the reconstructed experiment proves that the holographic image has the advantage of low *** proposed holographic camera is unique and can be used in 3D display,measurement,encryption and other fields.

关键词： calculation solution holographic

Decremental Learning based on Sample-Weighted Support Vector Regression

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Decremental Learning based on Sample-Weighted Support Vector...

第2.届中国控制与决策会议

作者： Li Qing 1,2., Wang Ling 1,2. , Zhang De zheng 3 ,Zhang Wei Cun 1,2.1. School of Automation & Electrical Engineering, {2. of science and technology beijing, beijing 100083, china 2. Key Laboratory of Advanced Control of Iron and Steel Process (Ministry of Education), beijing 100083, china3. School of computer & Communication Engineering, {2. of science and technology beijing, beijing 100083, china

In this paper, a new modeling method-decremental learning based on sample-weighted SVR（DSWSVR） is proposed, which introduces the decremental learning strategy into sample selection based on support vector regression （SVR）. DSWSVR differs from SVR in that it builds a new sample set, where some sample in the original sample set are weighted differently to account for its representative to improve the prediction ability of the algorithm. Simulation results show that the proposed algorithm can improve the performance of the SVR modeling.

关键词： Support Vector Regression (SVR) Decremental Learning Weighted Sample Genetic Algorithm

Inverting the rock mass P-wave velocity field ahead of deep buried tunnel face while borehole drilling

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International Journal of Mining science and technology 2024年第5期34卷 681-697页

作者： Liu Liu Shaojun Li Minzong zheng Dong Wang Minghao Chen Junbo Zhou Tingzhou Yan Zhenming Shi State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan 430071China china Railway Eryuan Engineering Group CO. LTD.Chengdu 610031China department of Hydraulic and Hydropower Engineering Tsinghua UniversityBeijing 100084China Hubei Communications Planning and Design Institute CO. LTD.Wuhan 430051China Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education Tongji UniversityShanghai 200092China

Imaging the wave velocity field surrounding a borehole while drilling is a promising and urgently needed approach for extending the exploration range of the borehole *** paper develops a drilling process detection(DPD)system consisting of a multifunctional sensor and a pilot geophone installed at the top of the drilling rod,geophones at the tunnel face,a laser rangefinder,and an onsite computer.A weighted adjoint-state first arrival travel time tomography method is used to invert the P-wave velocity field of rock mass while borehole drilling.A field experiment in the ongoing construction of a deep buried tunnel in southwestern china demonstrated the DPD system and the tomography ***-frequency analysis of typical borehole drilling detection data shows that the impact drilling source is a pulse-like seismic exploration wavelet.A velocity field of the rock mass in a triangular area defined by the borehole trajectory and geophone receiving line can be *** the borehole core and optical image validate the inverted P-wave velocity field.A numerical simulation of a checkerboard benchmark model is used to test the tomography *** rapid convergence of the misfits and consistent agreement between the inverted and observed travel times validate the P-wave velocity imaging.

关键词： Deep buried tunnel Wave velocity field Borehole drilling Tomography Rock mass

The Application of the Associative Memory Model in the Blood Tests

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The Application of the Associative Memory Model in the Blood...

2.08 IEEE International Symposium on IT in Medicine and Education(ITME 2.08)

作者： Ping Han1,2.Qinglei Qi 2..School of computer science and {2.,Wuhan university of {2.,Wu Han 430070,china 2.School of Information science and Engineering,Henan university of {2.,zheng Zhou 450001,china

For finding some diseases （such as the leukemia） in time and avoiding missed diagnosis in the traditional way,this paper presents the application of the associative memory model in the blood *** use blood test instruments to do blood routine examination on body at first,then extract the eigenvectors based on the clinical significance and the range of every parameter,and finally send it to the associative memory model.

关键词：

Product Design Strategies Based on the Psychological Features of the Aging People Living in Cities

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Product Design Strategies Based on the Psychological Feature...

E-Business·Creative Design·Manufacturing——2.09 IEEE 10th International Conference on computer-Aided Industrial Design & Conceptual Design（CAID&CD’2.09）

作者： 1 2.Linxin zheng 2.Deyin Qu 1 College of computer {2. and technology Zhejiang university Hangzhou Zhejiang Province 31002. china 2.chool of Art Design Zhejiang university of {2. and technology Hangzhou Zhejiang Province 31002. china

This paper investigated the life style of the aging people living in Hangzhou,Jiaxing and Ningbo and analyzed their consuming tendency and psychological *** of the declines of physiological functions and the changes in the living and working environments,negative emotions such as emptiness,loneliness,depression and self-abasement are discovered with aged *** paper researched and concluded a product design strategy based on aged people according to their psychological features.

关键词： aging people psychological features design

Investigation of Cooperative LearningSupported by Multi-agent technology

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Investigation of Cooperative LearningSupported by Multi-agen...

2.07 1st International Symposium on Information Technologies and Applications in Education(ISITAE2.07)

作者： Aikui Tian 1,Yingli zheng 2.1 School of {2. science and technology Shandong university of technology,Zibo,P.R.china 2.School of Education Hebei university

A cooperative learning system based on multi-Agent technology is *** addition,the structure of system as well as the function of each Agent included in the system is illustrated and designed in ***,the task of developing cooperative learning system based on multi-Agent is evacuated and concluded as a long-term topic for future education.

关键词： Multi-Agent,Cooperative Learning,System

computer simulation of strain-induced morphological transformation of coherent precipitates

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Journal of university of science and {2. beijing 2003年第4期10卷 55-60页

作者： Yuhong Zhao, zheng Chen, and Xiaoling Lidepartment of Materials {2. and Engineering, Northwestern Polytechnical university, Xi’an 710072. china Northwestern Polytech Univ Dept Mat Sci & Engn Xian 710072 Peoples R China

The coherent elastic strain-induced morphological transformation of a binarycubic model alloy was simulated with different strain energy parameters. The microscopic diffusionequation was combined with the theory of microscopic elasticity. The results show that when thestrain energy is neglected, the randomly distributed equiaxed particles are obtained with isotropiccharacteristic. It is coarsening that follows the Ostwald ripening mechanism: smaller particlesdwindle and larger particles grow; when the elastic strain is considered, plate precipitates tend toalign along the elastically soft directions 1> with anisotropic characteristic. The particlesgrow in the soft directions and coarsen further; particles dwindle in out of the soft *** the coarsening of the particles localized in the same row or column follows the rule: smallerparticles shrink and larger ones grow.

关键词： elastic strain energy coherent precipitate model alloy and computersimulation