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Two-dimensional neighborhood discriminant projection

Two-dimensional neighborhood discriminant projection

引用

2010 6th IEEE World Congress on Computational Intelligence, WCCI 2010 - 2010 international Joint conference on Neural Networks, IJCNN 2010

作者： Zhang, Shan-Wen Lei, Ying-Ke Huang, De-Shuang Intelligent Computing Lab. Hefei Institute of Intelligent Machines Chinese Academy of Sciences P.O.Box 1130 Hefei Anhui 230031 China Department of Automation University of Science and Technology of China Hefei 230027 China Department of Information Electronic Engineering Institute Hefei 230037 China

ISBN: (纸本)9781424469178

Classical linear dimensional reduction algorithms, such as Linear Discriminant Analysis (LDA) and Locality Preserving Projections (LPP) have been widely used in computer vision and pattern recognition. However, when dealing with the multidimensional dataset, they usually first transform the original data to vectors, and then analyze the data in such a high dimensional space. this process inevitably results in some obvious disadvantages. this paper proposes a novel two-dimensional dimensionality reduction algorithm called 2D Neighborhood Discriminant Projection (2D-NDP), which is based directly on 2D image matrices rather than 1D vectors. 2D-NDP detects the intrinsic class-relationships between the images by incorporating both class label information and neighborhood information. It can optimally preserve not only the local class information but discriminant information as well. Under the orthogonal constrain, 2D-NDP is developed as orthogonal 2D-NDP for classification. Experiments on the face database and the plant leaf database demonstrate that orthogonal 2D-NDP is effective and feasible for classification. © 2010 IEEE.

关键词： Discriminant analysis

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Developing an adaptable manufacturing execution system framework

Developing an adaptable manufacturing execution system frame...

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6th CIRP international conference on Digital Enterprise Technology, DET 2009

作者： Gang, Huang Jinhang, Li Xiaodong, Yuan State Key Laboratory of Digital Manufacturing Equipment and Technology Huazhong University of Science and Technology Wuhan Hubei China Department of Industrial and Manufacturing System Engineering School of Mechanical Science and Engineering Huazhong University of Science and Technology China

ISBN: (纸本)9783642104299

Manufacturing system now reached a point where it can accommodate various kinds of production models. However, its management and control sub-system, i.e. the manufacturing execution system (MES), is still constructed with relatively dedicated framework. Such lag in the development of MES has inevitably caused some problems. A salient one is the lack of adaptability to effectively cope with the diversity of manufacturing processes. this paper aims to provide some resolutions to this problem. After analyzing the adaptability requirements of A-MES in detail, some key techniques are researched including data integrated adapter, developing configurable factory model, reusable business component and data based script driven mechanism. thereafter, a new kind of adaptable MES framework named A-MES is presented. A-MES is capable of accommodating changes in internal and external manufacturing system with little programming work. Moreover, a implementation system of A-MES is given, which has been successfully applied in different assembly lines in automotive industry. © Springer-Verlag Berlin Heidelberg 2010.

关键词： Manufacture

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An interference cancellation scheme-based carrier frequency offset estimation for OFDM uplink transmissions

An interference cancellation scheme-based carrier frequency ...

引用

作者： Hung, Ho-Lung Chao, Chien-Chi Lin, You-Hao Huang, Shih-Ping Wu, Chin-Hung Lee, Gwo-Ruey Department of Electrical Engineering ChienKuo Technology University Changhua County Taiwan Department of Computer Science Taipei Municipal University of Education Taipei Taiwan

ISBN: (纸本)9788988678251

this paper addresses the problem of resource management in the presence of inter-carrier interference (ICI) and multipath fading channel for orthogonal frequency division multiplexing (OFDM) systems. OFDM is a promising technique for the broadband wireless communication systems. However, the OFDM communication system is sensitivity to the ICI which arises because of Doppler spread and carrier frequency offset (CFO). To solve these problems, an optimization method is exploited, and a computationally efficient method using stochastic optimization techniques is proposed. the simulation results show that these derived optimal solutions and proposed suboptimal algorithms as compared with the uniform power allocation algorithm or conventional water-filling algorithm can significantly improve the performance of the OFDM systems.

关键词： Orthogonal frequency division multiplexing

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A New MMSE Estimator Based on Signal Correlation Property

A New MMSE Estimator Based on Signal Correlation Property

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international conference on Wireless Communications, Networking and Mobile computing (WiCom)

作者： Chengti Huang Rueywen Liu Houjun Wang School of Automatic Engineering University of Electronic Science and Technology Chengdu China Department of Electrical Engineering University of Notre Dame Notre Dame IN USA

An improved minimum mean square error (MMSE) estimate method based on the diversity of correlation characteristic between the additive white noise and the signal is proposed in this presentation. the new estimator is constructed as a linear combination of the covariance matrices of the observed signal and its delay. the proofing and simulation indicate that the new estimator can achieve a better estimate than the traditional MMSE estimator.

关键词： Covariance matrix Correlation Delay White noise Vectors Manganese

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EEG-based absence seizure detection methods

EEG-based absence seizure detection methods

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2010 6th IEEE World Congress on Computational Intelligence, WCCI 2010 - 2010 international Joint conference on Neural Networks, IJCNN 2010

作者： Liang, Sheng-Fu Chang, Wan-Lin Chiueh, Herming Department of Computer Science and Information Engineering Institute of Medical Informatics National Cheng Kung University Tainan 701 Taiwan Department of Computer Science and Information Engineering National Cheng Kung University Tainan 701 Taiwan Department of Electrical Engineering National Chiao Tung University Hsinchu 300 Taiwan

ISBN: (纸本)9781424469178

Approximately 1% of people in the world have epilepsy and 25% of epilepsy patients cannot be treated sufficiently by any available therapy. An automatic seizure detection system can reduce the time taken to review the EEG data by the neurologist for epilepsy diagnosis. In this paper, various EEG features integrated with the linear or non-linear classifiers are evaluated for seizure detection. For the EEG features, approximate entropy (ApEn) combined with 1) EEG power spectra or 2) autoregressive model (AR) are compared. In addition, the principle component analysis (PCA) is also utilized for feature extraction. For the classifiers, two linear models, linear least square (LLS) and linear discriminant analysis (LDA), and two nonlinear models, backpropagation neural network (BPNN) and support vector machine with radial basis function kernel (RBFSVM) are compared. the EEG signals of three Long Evans rats with spontaneous absence seizures are used for leave-one-out cross-validation. Experimental results shows that combining ApEn and multi-band EEG power spectra are superior to the combination of ApEn and AR model for all classifiers. the best average accuracy is 97.5% performed by RBFSVM and the linear models can achieve to higher than 95%. the automatic seizure detection method can be utilized to drive the seizure warning device or seizure control devices in the future to enhance the patients' quality of life. © 2010 IEEE.

关键词： Feature extraction

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Selected mapping applied scheme for PAPR reduction in OFDM communication systems

Selected mapping applied scheme for PAPR reduction in OFDM c...

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作者： Lee, Gwo-Ruey Cheng, Chia-Hsin Hung, Ho-Lung Department of Computer Science Taipei Municipal University of Education No. 1 Ai-Guo W. Rd. Taipei 100 Taiwan Department of Electrical Engineering National Formosa University No. 64 Wunhua Rd. Huwei Yunlin 632 Taiwan Department of Electrical Engineering Chienkuo Technology University No.1 Chieh Shou N. RD Changhua City 500 Taiwan

ISBN: (纸本)9788988678251

OFDM applied systems are the candidates for the future wireless communications. However, high peak-to-average ratio (PAPR) degrades the system performance. Applying the signal space expansion into the signal selection scheme, PAPR reduction could be implemented in OFDM systems. In this paper, a selected mapping (SLM) applied scheme using signal space expansion is proposed. In the scheme, a specific rule is designed to scramble the data sequence for PAPR reduction. the data sequence can be completely extracted at the receiver without any side information. Hence, the scheme can be implemented to reduce PAPR and to avoid bit error rate (BER) degradation in the OFDM system. then, the numerical results are given to evaluate the performance on PAPR reduction and BER in the OFDM system. the result shows BER performance with the proposed SLM applied scheme is better than that with the ordinary SLM scheme.

关键词： Bit error rate

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Research of the Network Manager for WIA-PA

Research of the Network Manager for WIA-PA

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international conference on Wireless Communications, Networking and Mobile computing (WiCom)

作者： Yunjie Zhang Xiaotong Zhang Qin Wang Yadong Wan School of Information Engineering University of Science and Technology Beijing Beijing China Electronic & Information Engineering Department Tianjin Institute of Urban Constructions Tianjin China

WIA-PA is a standard of wireless networks for industrial-process automation, which is proposed by Industrial Wireless Alliance of China. Network manager is an integral role of the WIA-PA network. In this paper, we first look closely into the architecture of WIA-PA and the responsibility of network manager. More specifically, we set our focus on the schemes and algorithms involved in the process of topology maintenance, routing configuration and communication resources allocation, which are the core responsibilities of the network manager. Finally, with Visual Studio .NET the paper has implemented the network manager of WIA-PA which has been running for a long time in the laboratory. the results show the network manager can effectively utilize channels and timeslots resources, optimize resource allocation and improve the overall WIA-PA performance.

关键词： Routing Network topology Resource management Logic gates automation Algorithm design and analysis Channel allocation

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the Analysis and Design of Security Protocol on electrical Business Platform

The Analysis and Design of Security Protocol on Electrical B...

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international conference on Wireless Communications, Networking and Mobile computing (WiCom)

作者： Sumei Jia Feng Wang Wei Wang Ying Guo College of Information Engineering Handan Polytechnic College Handan China School of Electronic Engineering E&A College Hebei Normal University of Science and Technology (HBNUST) Qinhuangdao China School of Electronic Engineering Tianjin University of Technology and Education Tianjin China

this paper focuses on communication security of e-commerce. A secure electronic transaction model was designed, with the designs of security protocols of transactions for each process in detail, and the advantages was pointed out. In the design process, the security protocol proposed in this paper is not confined to a particular electronic trading system itself. this model has a wide range of practical significance and reference value.

关键词： Protocols Certification Biological system modeling Educational institutions Business Public key

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SLOGS: Security through predicate LOGic in SSH

SLOGS: Security through predicate LOGic in SSH

引用

international conference on Emerging Technologies, ICET

作者： Shujaat Hussain Mohsin Abbass Owais Malik Zahid Anwar Department of Computing School of Electrical Engineering and Computer Science National University of Science and Technology Pakistan

SLOGS is an implementation of mandatory access control mechanism in SSH protocol. It takes an input from the user about his location and session priority and then implements some predicates and facts which are divided into three sets namely Security influential predicates (set 1), normal security predicates (set 2) and backup system predicates (set 3). the implementation of one or all sets is on the discretion of the administrator of the system. there is a tradeoff between security and performance; when all sets are applied the security is increased but the performance will be decreased. the performance and security were decided by the location and requirement of the *** system is implemented using type-1 fuzzy logic to take care of the imprecision in input to the systems.

关键词： Encryption Protocols Servers Virtual private networks Electronic mail

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Neighbor-aware dynamic backoff algorithm for wireless multihop ad hoc networks

Neighbor-aware dynamic backoff algorithm for wireless multih...

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international conference on Networked computing and Advanced Information Management (NCM)

作者： Chien-Min Wu Hui-Kai Su Wang-Hsai Yang Yueh-Sheng Chien Pai-Kun Huang Department of Computer Science and Information Engineering Nanhua University Taiwan Department of Electrical Engineering National Formosa University Taiwan Department of Information Networking Technology Hsiuping Institute of Technology Taiwan

ISBN: (纸本)9781424476718

In this paper, we propose a neighbor-aware dynamic backoff scheme and evaluate the performance of the proposed scheme for ad hoc networks. the backoff scheme that we devised grants node access to the channel, according to the competing number of nodes for a transmitted frame. We use both an analytical model and simulation experiments to evaluate the dynamic performance of our backoff mechanism in an ad hoc network.

关键词： Bismuth IEEE 802.11 Standards

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