检索结果-内蒙古大学图书馆

International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Li Tang Zheng Zhao Xiu-Jun Gong Hua-Peng Zeng Department of Information Science and Technology Tianjin University of Finance and Economics Tianjin China School of Computer Science and Technology Tianjin University Tianjin China Tianjin Key Laboratory of Cognitive Computing and Application Tianjin China Danfoss (Tianjin) Ltd. Tianjin China

ISBN: (纸本)9781479902590

PAC-Bayes bound provides a formal framework for deducing the tightest risk bounds of the classifiers. After formulating the concept space as a Reproducing Kernel Hilbert Space (RKHS), the Markov Chain Monte Carlo (MCMC) sampling algorithm for simulating posterior distributions of the concept space can realize the calculation of PAC-Bayes bound. A major issue is the computational complexity in geometric growth when the dimension of concept space increases. In this paper, we store a portion of the sampling data and calculate its variance, after which the variance minimization method is proposed to investigate the support vectors. Finally, we optimize the support vectors coupled with their weight vectors, and compare the PAC-Bayes bounds. The experimental results of our artificial data sets in low-dimensional spaces show that the optimization is reasonable and effective in practice.

关键词： Optimization Abstracts Monte Carlo methods Erbium Support vector machines

来源：评论

学校读者我要写书评

暂无评论

Adhesion hysteresis of a film-terminated fibrillar array

引用

Science China(Physics,Mechanics & Astronomy) 2012年第6期55卷 1026-1031页

作者： YAN ShunPing HE LingHui WANG HuiJing Chinese Academy of Sciences Key Laboratory of Mechanical Behavior and Design of Materials University of Science and Technology of ChinaHefei 230026China Department of Computer Application Shenzhen Institute of lnforrnation TechnologyShenzhen 518172China

Motivated by the recent biomimic design of microstructured adhesive surfaces,we study adhesion between a film-terminated fibrillar array and a rigid *** a two-dimensional model and ignoring the deformation of the fibers and the backing layer,we show that the adhesion behavior is dominated by a dimensionless parameter reflecting the global flexibility of the terminal *** particular,if the parameter is larger than 0.4,the adhesion is reversible;otherwise one or more hysteresis loops will appear after an approach-retraction cycle,leading to significant increase in the specific separation *** result is expected to help not only optimal design of the structure,but also other applications such as micro-manipulation in micromechanical systems.

关键词： adhesion hysteresis film-terminated fibrillar array intermolecular force

来源：评论

学校读者我要写书评

暂无评论

Analysis of the Geometrical Features of Photospheric Bright Points in the Quiet-Sun Region

Analysis of the Geometrical Features of Photospheric Bright ...

引用

第三十二届中国控制会议

作者： Lan Yu Linhua Deng Song Feng Department of Information Engineering Yunnan Land and Resources Vocation College Key Laboratory of Modern Astronomy and Astrophysics(Nanjing University) Ministry of Education National Astronomical Observatories/ Yunnan Astronomical Observatory Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences Computer Technology Application Key Lab of Yunnan Province and Faculty of Information Engineering and Automation Kunming University of Science and Technology

ISBN: (纸本)9781479900305

The Solar Granulation is an ubiquitous structure in the quiet *** brighter features called "Photospheric Bright Points(PBPs)" are found within inter-granules in G-band images *** are the small-scale feature on the solar *** their characteristics may reveal the significant problems such as coronal hearting,local dynamo theory and the relation of magnetic *** the presented paper,we utilized Laplacian and morphological dilation(LMD) technique to detect and extract PBPs within inter-granular lanes.A data set has been taken with the Dutch Open Telescope(DOT) on July 2, *** was employed to analyze the geometrical feature of *** statistical distributions of PBPs were obtained by the proposed *** diameter distribution of PBPs is consistent with lognormal *** peak diameter occurs at about *** histogram of geometrical features is derived from the PBPs *** distribution of eccentricity indicates that approximately 50%PBPs have a near circular,the average eccentricity occurs at *** distribution accords with an Exponential fit.

关键词： Photospheric Bright Points Laplacian morphological dilation eccentricity Sun

来源：评论

学校读者我要写书评

暂无评论

A new method of class centriod vectors classification based on the feedback

A new method of class centriod vectors classification based ...

引用

2012 International Conference on computer Distributed Control and Intelligent Environmental Monitoring, CDCIEM 2012

作者： Li, Weijiang Chen, Xing Zhao, Tiejun Wang, Xiangang Computer Application Key Laboratory of Yunnan Province Kunming University of Science and Technology Kunming 650051 China School of Computer Science and Technology Harbin Institute of Technology Harbin 150001 China

ISBN: (纸本)9780769546391

It is a great challenge for information technology that how to organize and manage large amount of document data, and find users' interested information quickly and exactly. Text classification can achieve the goal of information distributaries and solve the problem of information disorder, and then it can offer the convenience to users to make decisions. Centroid classifier is one of the most efficient models. Firstly the paper expatiates on the disadvantage of traditional weight calculation method applied in text classification, and then a new method which uses feature selection evaluation function value as a factor to term frequency is proposed. This paper present an improved centroid classifier based on feedback. The main idea of the algorithm is using the misfit samples in the training set to modify the center vectors which are related with them. From test results, the algorithm proposed by the paper is valid. © 2012 IEEE.

关键词： Classification (of information)

来源：评论

学校读者我要写书评

暂无评论

High breakdown voltage InAlN/AlN/GaN HEMTs achieved by Schottky-Source technology

High breakdown voltage InAlN/AlN/GaN HEMTs achieved by Schot...

引用

International Symposium on Power Semiconductor Devices and Ics (ISPSD)

作者： Qi Zhou Wanjun Chen Shenghou Liu Bo Zhang Zhihong Feng Shujun Cai Kevin J. Chen State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China Chengdu Sichuan P.R. China Science and Technology on Reliability Physics and Application Technology of Electronic Component Lab. Guangzhou P.R. China Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Hong Kong The Science and Technology on ASIC Lab. Hebei Semiconductor Research Institute Shijiazhuang P.R. China

In this paper, we demonstrate 253% improvement in the off-state breakdown voltage (BV) of the lattice-matched In 0.17 Al 0.83 N/GaN high-electron-mobility transistors (HEMTs) by using a new Schottky-Source technology. Based on this concept, the Schottky-Source (SS) InAlN/GaN HEMTs are proposed. The SS HEMTs with a L GD of 15 μm showed a three-terminal BV of 650 V, while conventional InAlN/GaN HEMTs of the same geometry showed a maximum BV of 184 V. Without using any field-plate the result measured in the proposed device is the highest BV ever achieved on InAlN/GaN HEMTs. The corresponding specific on-resistance (R sp, on ) is as low as 3.4 mΩ·cm 2 . A BV of 118 V was also obtained in an SS InAlN/GaN HEMTs with L GD =1 μm, which is the highest BV in GaN-based HEMTs featuring such a short L GD with GaN buffer.

关键词： HEMTs MODFETs Gallium nitride Aluminum gallium nitride Gold

来源：评论

学校读者我要写书评

暂无评论

Fast string matching algorithms for very short patterns

Fast string matching algorithms for very short patterns

引用

IET International Conference on Information Science and Control Engineering 2012, ICISCE 2012

作者： Zhou, Yao Fan, Hongbo Liu, Lijun Huang, Qingsong Department of Computer Science Kunming University of Science and Technology 650500 China Computer Technology Application Key Laboratory of Yunnan Province 650500 China Department of Biomedical Engineering Kunming University of Science and Technology 650500 China

ISBN: (纸本)9781849196413

Exact single pattern string matching is a fundamental problem in computer science. To date, the performance of existing string matching algorithms for very short patterns is poor. In this article, based on the most basic exact single pattern string matching algorithm-BF, we presented a serial improved algorithms named HBF by introducing the q-grams method, the loop unrolling method, and modifying the smallest processing unit from byte to integer. Experimental results indicated that HBF is obviously faster than known algorithms for very short patterns on our platform. Meanwhile, the pre-processing phase of HBF just need constant time and space, the worst and the best time complexity are linear and 0(n/w), separately, which w is the number of characters involved in an integer.

关键词： String searching algorithms

来源：评论

学校读者我要写书评

暂无评论

An extensible HL7 middleware for heterogeneous healthcare information exchange

An extensible HL7 middleware for heterogeneous healthcare in...

引用

2012 5th International Conference on Biomedical Engineering and Informatics, BMEI 2012

作者： Liu, Lijun Huang, Qingsong Department of Biomedical Engineering Kunming University of Science and Technology Kunming 650500 China Department of Computer Science Kunming University of Science and Technology Yunnan Key Laboratory of Computer Application Kunming 650500 China

ISBN: (纸本)9781467311816

In this paper, we developed an extensible HL7 middleware to exchange the heterogeneous healthcare information. A semantic structure mapping, which can be configured dynamically, is presented to guide the data conversion of heterogeneous healthcare information. These heterogeneous data can be quickly built or parsed into standard HL7 messages for transmission. This middleware is designed and implemented based on the interface-oriented programming ideas and plug-in mechanism, which can be extended conveniently to accomplish the data exchange between new data format and the existing data format. Experimental results show that the heterogeneous healthcare information can be exchanged and integrated successfully and quickly using this HL7 middleware. © 2012 IEEE.

关键词： Mapping

来源：评论

学校读者我要写书评

暂无评论

A fast exact string matching algorithms based on greedy jump and QF

A fast exact string matching algorithms based on greedy jump...

引用

IET International Conference on Information Science and Control Engineering 2012, ICISCE 2012

作者： Chen, Zhiteng Liu, Lijun Fan, Hongbo Huang, Qingsong Yin, Qi Department of Computer Science Kunming University of Science and Technology 650500 China Computer Technology Application Key Laboratory of Yunnan Province 650500 China Department of Biomedical Engineering Kunming University of Science and Technology 650500 China

ISBN: (纸本)9781849196413

String matching is a basic problem of computer science and it has been widely used in many important application fields. To date, QF is one of the fastest exact single pattern string matching algorithms for long patterns. In this paper, we improved the QF algorithm by introducing the greedy jump method and gained a serial of exact single pattern string matching algorithms named Greedy QF. Experimental results indicated that Greedy QF is faster than QF in most of case and Greedy QF is faster than other known algorithms in many cases for long patterns on our platform.

关键词： String searching algorithms

来源：评论

学校读者我要写书评

暂无评论

Fast single pattern string matching algorithms based on multi-windows and integer comparison

Fast single pattern string matching algorithms based on mult...

引用

IET International Conference on Information Science and Control Engineering 2012, ICISCE 2012

作者： Lv, Zhenhong Fan, Hongbo Liu, Lijun Huang, Qingsong Yin, Qi Department of Computer Science Kunming University of Science and Technology 650500 China Computer Technology Application Key Laboratory of Yunnan Province Kunming 650500 China Department of Biomedical Engineering Kunming University of Science and Technology 650500 China

ISBN: (纸本)9781849196413

String matching is a fundamental problem in computer science. It has been widely used in many important fields. In this article, we presented an integer comparison method to improve the branch performance, and we improved an exact single pattern string matching algorithm-TSW by introducing the multi-window method and the integer comparison method. Therefore, we presented a new serial of algorithms named kSWXC (k Sliding Windows with X Comparison, X is the data type for comparison). Experiment results indicated that kSWXC is faster than other known algorithms for short patterns on our platform.

关键词： String searching algorithms

来源：评论

学校读者我要写书评

暂无评论

The intelligent identification and elimination of non-precipitation echoes in the environment of low-latitude plateaus 1

引用

5th International Conference on Advances in Brain Inspired Cognitive Systems, BICS 2012

作者： Wang, Jian Zhao, Na Li, Peng Yu, Yong Dai, Fei Xie, Zhongwen Qin, Jianglong College of Information Engineering and Automation Kunming University of Science and Technology Kunming China Yunnan University Kunming China Key Laboratory in Software Engineering of Yunnan Province Kunming China Computer Technology Application Key Laboratory of Yunnan Province Kunming University of Science and Technology Kunming China

ISBN: (数字)9783642315619

ISBN: (纸本)9783642315602

Considering the important reference value of weather radar data in the process of weather modification and based on the analysis of historical weather modification data of Yunnan province, china, and the study of various non-precipitation removal algorithms, this paper proposed a new model of intelligent identification and elimination of non-precipitation radar echoes in the environment of low-latitude plateaus, which has been proven to be effective in practical use. © 2012 Springer-Verlag.

关键词： Weather modification

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：