检索结果-内蒙古大学图书馆

9th Brazilian Symposium on Neural Networks, SBRN'06

作者： Medeiros, Anderson V. Amaral, Wagner C. Campello, Ricardo J. G. B. State University of Campinas School of Electrical and Computer Engineering Campinas SP 13083-970 Brazil Catholic University of Santos Graduate Program in Computer Science Santos SP 11070-906 Brazil

ISBN: (纸本)0769526802

OBF (Orthonormal Basis Function) Fuzzy models have shown to be a promising approach to the areas of nonlinear system identification and control since they exhibit several advantages over those dynamic model topologies usually adopted in the literature. Although encouraging application results have been obtained, no automatic procedure had yet been developed to optimize the design parameters of these models. This paper elaborates on the use of a genetic algorithm (GA) especially designed for this task, in which a fitness function based on the Akaike information criterion plays a key role by considering both model accuracy and parsimony aspects. The use of linear (actually affine) and nonlinear local models is also investigated. The proposed methodology is evaluated in the modeling of a real nonlinear magnetic levitation system. © 2006 IEEE.

关键词： Fuzzy sets

来源：评论

学校读者我要写书评

暂无评论

Genetic programming with Incremental Learning for Grammatical Inference

Genetic Programming with Incremental Learning for Grammatica...

引用

international Conference on Hybrid Intelligent Systems (HIS)

作者： Ernesto Rodrigues Heitor Silverio Lopes Graduate Program in Electrical Engineering and Computer Science Federal University of Technology of Paraná (UTFPR) Curitiba Brazil

We present an evolutionary algorithm for the inference of context-free grammars from positive and negative examples. The algorithm is based on genetic programming and uses a local optimization operator that is capable of improving the learning task. Ordinary genetic operators are modified so as to bias the search. The system was evaluated using Tomitas language examples and results were compared with another similar approach. Results show that the proposed approach is promising and more robust than the other one.

关键词： Grammar Production Genetic programming Sociology Statistics Inference algorithms

来源：评论

学校读者我要写书评

暂无评论

GA Optimization of OBF TS Fuzzy Models with Linear and Non Linear Local Models

GA Optimization of OBF TS Fuzzy Models with Linear and Non L...

引用

Brazilian Symposium on Neural Networks

作者： Anderson V. Medeiros Wagner C. Amaral Ricardo J. G. B. Campello School of Electrical and Computer Engineering State University of Campinas Sao Paulo Brazil Graduate Program in Computer Science Catholic University of Santos Sao Paulo Brazil

ISBN: (纸本)9780769531960

关键词： Fuzzy control Fuzzy systems Nonlinear systems Control system synthesis Automatic control Nonlinear control systems Nonlinear dynamical systems Topology Design optimization Genetic algorithms

来源：评论

学校读者我要写书评

暂无评论

Reconfigurable crossbar switch architecture for network processors

Reconfigurable crossbar switch architecture for network proc...

引用

IEEE international Symposium on Circuits and Systems (ISCAS)

作者： H.C. Freitas M.B. Carvalho A.M. Amaral A.R.M. Diniz C.A.P.S. Martins L.E.S. Ramos Graduate Program in Electrical Engineering Pontifical Catholic University of Minas Gerais Belo Horizonte Brazil Computer Science Rutgers University NJ USA

This paper presents the proposal and development of a reconfigurable crossbar switch (RCS) architecture for network processors. Its main purpose is to increase the performance, and flexibility for environments with multiprocessors and computer clusters. The results include VHDL simulation of RCS and the use of it in a broadcast function implementation, found in message passing support middleware

关键词： Switches Engines Field programmable gate arrays Network topology computer architecture Proposals Communication switching Circuit topology Broadcasting Application specific integrated circuits

来源：评论

学校读者我要写书评

暂无评论

Custom error control schemes for energy efficient bluetooth sensor networks

Custom error control schemes for energy efficient bluetooth ...

引用

international Symposium on Telecommunications

作者： Joao H. Kleinschmidt Walter C. Borelli Marcelo E. Pellenz Department of Telematics School of Electrical and Computer Engineering State University of Campinas Sao Paulo Brazil Graduate Program in Computer Science Pontifical Catholic University of Paraná Curitiba Parana Brazil

This paper analyzes the effect of custom error control schemes on the energy efficiency in Bluetooth sensor networks. The energy efficiency metric considers in just one parameter the energy and reliability constraints of the wireless sensor networks. New packet types are introduced using some error control strategies in the AUX1 packet, such as Hamming and BCH codes, with and without CRC for error detection. Two adaptive techniques are proposed that change the error control strategy based on the number of hops traversed by a packet through the network. The performance results are obtained through simulations in a channel with Rayleigh fading for networks with different number of hops, showing that error control can improve the energy efficiency of a Bluetooth-based sensor network.

关键词： Error correction Energy efficiency Bluetooth Wireless sensor networks Media Access Protocol Energy consumption Sensor phenomena and characterization Automatic repeat request Analytical models Cyclic redundancy check

来源：评论

学校读者我要写书评

暂无评论

Chitosan for biofunctionalization of microsystems

Chitosan for biofunctionalization of microsystems

引用

2006 IEEE/NLM Life science Systems and Applications Workshop, LiSA 2006

作者： Koev, Stephan T. Powers, Michael A. Badilita, Vlad Yi, Hyunmin Bentley, William E. Payne, Gregory F. Rubloff, Gary W. Ghodssi, Reza Department of Electrical and Computer Engineering University of Maryland College Park MD 20742 Department of Materials Science and Engineering University of Maryland College Park MD 20742 Department of Chemical Engineering University of Maryland College Park MD 20742 University of Maryland College Park MD 20742 University of Maryland College Park MD 20742 Bioengineering Graduate Program University of Maryland College Park MD 20742

ISBN: (纸本)1424402786

We present the use of the polysaccharide chitosan for immobilizing biomolecules on microfabricated device surfaces. The main advantages of chitosan are its abundance of primary amine groups and its ability to be electrodeposited. Biomolecules are easily attached to chitosan's amines by standard glutaraldehyde chemistry. The electrodeposition of chitosan allows accurate spatial and temporal control of biomolecule placement. We have demonstrated this biofunctionalization method for two different BioMEMS devices: a biophotonic sensor and a micromechanical biosensor. We have successfully assembled probe DNA on each of them and detected hybridization with target DNA as a demonstration of sensor operation. Here, we briefly present the fabrication procedure and testing results for both of these BioMEMS sensing devices. © 2006 IEEE.

关键词： Microsystems

来源：评论

学校读者我要写书评

暂无评论

A Supervised Constructive Neuro-Immune Network for Pattern Classification

A Supervised Constructive Neuro-Immune Network for Pattern C...

引用

international Joint Conference on Neural Networks (IJCNN)

作者： H. Knidel L. Nunes de Castro F.J. Von Zuben Laboratory of Bioinformatics and Bioinspired Computing-LBiC Department of Computer Engineering and Industrial Automation-DCA School of Electrical and Computer Engineering-FEEC State University of Campinas-UNICAMP Sao Paulo Brazil Graduate Program in Computer Science Catholic University of Santos Sao Paulo Brazil

This paper proposes a supervised version of a learning algorithm for a constructive neuro-immune network. The proposed methodology is developed by taking ideas from the immune system and learning vector quantization. The resulting classification algorithm is characterized by high-performance, similar to the ones produced by alternative methods in the literature, and parsimonious solutions, with a much smaller set of prototypes per class when compared with the other approaches. The number of prototypes is automatically defined by the convergence criterion. The algorithm requires a single user-defined parameter for training, associated with the convergence criterion, and the computational cost is sufficiently reduced to support applications involving large data sets.

关键词： Pattern classification Immune system Neurons Supervised learning Vector quantization Classification algorithms Prototypes Clustering algorithms Unsupervised learning Artificial neural networks

来源：评论

学校读者我要写书评

暂无评论

The Attacking Method for DC Components Watermarking

The Attacking Method for DC Components Watermarking

引用

international Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIHMSP)

作者： Pei-wei Tsai Shu-chuan Chu Ching-sung Lu Jui-fang Chang Hsing-yuan Liao Department of Electronic Engineering National Kaohsiung University of Applied Sciences Taiwan Department of Information Engineering Tajen University Taiwan Department of Graduate Institute of International Business National Kaohsiung University of Applied Sciences Taiwan College of Electrical Engineering and Computer Science USA

In this paper we present two methods to remove the watermark from the carrier image, which is embedded in dc components of the discrete cosine transform based image using the method presented by Huang et al. [1] The first method, which we present, removes the watermark via varying the energies in frequency domain and redeeming the luminance in spatial domain; the second method we present removes the watermark through diversifying the intensity of dc components in transform domain. Both the two methods can remove the watermark and avoid to be detected that the image was hidden a watermark by the detection criterion. In addition, though we cleaned the watermark from the watermarked image, the PSNR of the cleaned image (compared with the original carrier image) is still high.

关键词： Watermarking Discrete cosine transforms PSNR Random sequences Data mining Switches Educational institutions computer science Frequency domain analysis Robustness

来源：评论

学校读者我要写书评

暂无评论

A faster branch-and-bound algorithm for the test-cover problem based on set-covering techniques

引用

ACM Journal of Experimental Algorithmics 2006年 11卷 2.2–es页

作者： Fahle, Torsten Tiemann, Karsten INFORM GmbH Pascalstraße 23 Aachen 52076 Germany International Graduate School of Dynamic Intelligent Systems Faculty of Computer Science Electrical Engineering and Mathematics University of Paderborn Fürstenallee 11 Paderborn 33102 Germany

The test-cover problem asks for the minimal number of tests needed to uniquely identify a disease, infection, etc. A collection of branch-and-bound algorithms was proposed by De Bontridder et al. [2002]. Based on their work, we introduce several improvements that are compatible with all techniques described in De Bontridder et al. [2002] and the more general setting of weighted test-cover problems. We present a faster data structure, cost-based variable fixing, and adapt well-known set-covering techniques, including Lagrangian relaxation and upper-bound heuristics. The resulting algorithm solves benchmark instances up to 10 times faster than the former approach and up to 100 times faster than a general MIP solver. © 2006 ACM.

关键词： Algorithms Branch-and-bound Experimentation G.2.1 [Discrete Mathematics]: Combinatorics - Combinatorial algorithms G.2.3 [Discrete Mathematics]: Applications Lagrangian relaxation Performance Set-cover problem Test-cover problem Variable fixing

来源：评论

学校读者我要写书评

暂无评论

ISHM implementation for Constellation Systems

ISHM implementation for Constellation Systems

引用

AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference

作者： Figueroa, Fernando Holland, Randy Schmalzel, John Duncavage, Dan Crocker, Alan Alena, Rick NASA Stennis Space Center Stennis Space Center MS 39529 Rowan University Dept. of Electrical and Computer Engineering Glassboro NJ 08028 NASA Johnson Space Center Houston TX 77058 NASA Ames Research Center Moffett Field CA 94035 Science and Technology Division EA41 Stennis Space Center MS 39529 AIAA Department of Electrical and Computer Engineering Rowan University Glassboro NJ 08028 International Space Station Program OD NASA Johnson Space Center Houston TX 77058 Systems Division Mission Operations Directorate DF NASA Johnson Space Center Houston TX 77058 Intelligent Systems Division MS 269-4 Moffett Field CA 94035

ISBN: (纸本)1563478188

This paper addresses methodic implementation of a credible ISHM capability for elements of Constellation Systems. ISHM capability must be implemented by a combination of on-board and ground elements, each contributing to determining the health of systems in the most effective manner. Implementation of ISHM capability must evolve continuously to reach higher and higher levels of functional capability. The implication is that a sustainable approach must be defined in order to accomplish a believable capability. This paper describes the methodology, the elements, and the technology to implement ISHM capability throughout the life cycle of elements of Constellation Systems, reaching beyond individual elements that might have a limited life while the constellation moves on.

关键词： Spacecraft propulsion

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：