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REPRESENTATION: 作品数：930被引量：1111H指数：13; 导出分析报告; 相关作者：徐亮孙正兴张福炎熊洪允郝永华更多>>; 相关机构：中国科学院大学浙江大学西安外国语大学华中师范大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金国家高技术研究发展计划更多>>

Representation of an Integer by a Quadratic Form through the Cornacchia Algorithm: 《Applied Mathematics》2024年第9期614-629,共16页Moumouni Djassibo Woba; Cornachia’s algorithm can be adapted to the case of the equation x2+dy2=nand even to the case of ax2+bxy+cy2=n. For the sake of completeness, we have given modalities without proofs (the proof in the case of the equa...; 关键词：Quadratic Form Cornacchia Algorithm Associated Polynomials Euclid’s Algorithm Prime Number

Discriminative stacked autoencoder for feature representation and classification被引量：1: 《Science China(Information Sciences)》2020年第2期93-94,共2页Yiping GAO Xinyu LI Liang GAO; supported in part by National Natural Science Foundation of China(Grant No.51721092);Natural Science Foundation of Hubei Province(Grant No.2018CFA078);the Program for HUST Academic Frontier Youth Team(Grant No.2017QYTD04).; Dear editor,Recently,deep learning(DL)has become a hot research topic and as one of the most well-known DL models,stacked autoencoder(SAE)[1]has received increasing attention.In SAE,layer-wise pretraining is the basic...; 关键词：SAE Discriminative stacked autoencoder for FEATURE REPRESENTATION and CLASSIFICATION

Representation of an Electrical Engineering Curriculum Using an Ontology of Controlled Quality: 《Journal of Mechanics Engineering and Automation》2014年第2期130-141,共12页Carolina Sarmiento Oscar Duarte Angelica Ghisays Maria Barrera Rene Soto; A curriculum is a complex system that includes a set of core competencies, objectives, contents, methodological and evaluation criteria, regulation among other things. In order to represent a curriculum as a piece of ...; 关键词：CURRICULUM Methontology ontological engineering PROTEGE quality management systems.

Bounds of an Elliptic Integral and the Series Representation for Gausses Constant: 《大学数学》2013年第5期33-35,共3页

An Adaptive Mesh Refinement Strategy for Immersed Boundary/Interface Methods: 《Communications in Computational Physics》2012年第7期515-527,共13页Zhilin Li Peng Song; An adaptive mesh refinement strategy is proposed in this paper for the Immersed Boundary and Immersed Interface methods for two-dimensional elliptic interface problems involving singular sources.The interface is repre...; 关键词：Adaptive mesh refinement immersed boundary method immersed interface method elliptic interface problem Cartesian grid method level set representation singular sources

An Efficient Representation of Quadtrees and Bintrees for Multiresolution Terrain Models: 《Geo-Spatial Information Science》2011年第3期198-206,共9页Yusnier Valle José Ortiz; Supported by the GeneSIG Project, University of Informatics Sciences (UCI), Havana, Cuba; A space-filling curve in 2,3,or higher dimensions can be thought as a path of a continuously moving point.As its main goal is to preserve spatial proximity,this type of curves has been widely used in the design and im...; 关键词：bintrees QUADTREES space-filling curves spatial data structures digital terrain models

Micropore Structure Representation of Sandstone in Petroleum Reservoirs Using an Atomic Force Microscope被引量：2: 《Chinese Physics Letters》2011年第8期31-34,共4页BAI Yong-Qiang ZHU Xing WU Jun-Zheng BAI Wen-Guang; by the Educational Commission of Heilongjiang Province(No 11551024);Daqing Oilfield Limited Company of China under Grant No DQYT-2010-JS-242.; The pore structure of sandstone in an oil reservoir is investigated using atomic force microscopy(AFM).At nanoscale resolution,AFM images of sandstone show us the fine structure.The real height data of images display ...; 关键词：SANDSTONE STRUCTURE RESERVOIRS

An Efficient Method for Calculating Qualitative Spatial Relations被引量：7: 《Chinese Journal of Electronics》2009年第1期42-46,共5页WANG Shengsheng LIU Dayou; The work is supported by the NSFC Major Research Program （No,60496321）, National Natural Science Foundation of China （No.60603030, No.60773099）, the National High-Tech Research and Development Plan of China （No.20060110Z2037）, the Major Program of Science and Technology Development Plan of Jilin Province （No.20060213）, European Commission （No.TH/Asia Link/010 （111084））.; Qualitative spatial relations are widely used in geospatial ontologies, geospatial （semantic） web services, spatial description logics etc. Methodology to obtain qualitative spatial relations （especially complex sp...; 关键词：Qualitative spatial reasoning Multigranularities approximate representation Region connection calculus Geographical information system

An improved algorithm for weighting keywords in web documents被引量：1: 《Journal of Shanghai University(English Edition)》2008年第3期235-239,共5页孙双贺樑杨静顾君忠; Project supported by the Science Foundation of Shanghai Municipal Commission of Science and Technology （Grant No.055115001）; In this paper, an improved algorithm, web-based keyword weight algorithm （WKWA）, is presented to weight keywords in web documents. WKWA takes into account representation features of web documents and advantages of t...; 关键词：improved vector space model （IVSM） representation feature feature item keyword weight semantic similarity

Optimisation in Quadric Primitive Representation and Classification from Range Data: 《Chinese Journal of Electronics》2004年第4期676-681,共6页ZHANGLei WANGGuoyu HOUKESZweitze; This paper focuses the modelling of uncertainties occurring in feature extraction from range images for surface-based primitive classification. The feature descriptor of a surface primitive consists of the algebraic i...; 关键词：不变量提取二次配件概率模型最佳分类图像处理面貌特征

REPRESENTATION