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Beijing Keji Daxue Xuebao/Journal of University of science and Technology Beijing 2005年第4期27卷 509-512页

作者： Gao, Yanyu Yang, Yang Chen, Fei Information Engineering School University of Science and Technology Beijing Beijing 100083 China JF Computer System Co. Ltd. Beijing 100083 China

The proposed off-line handwritten Chinese character recognition system composed of a feature extraction module and a recognition module. In the feature extraction module, the orthogonal Zernike moments and the elastic mesh technique were combined to get fusion features, which present the global and local features of handwritten Chinese characters and have great discriminative capability. As for the classification module, one approach that is very similar to the neural network classification strategy was used with the least square vector machine (LS-SVM), which not only has the excellent performance of generalization and recognition accuracy, but also can solve the multi-classification issue effectively. Experimental results indicated that the proposed method could get good recognition results.

关键词： Character recognition

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Handling missing values via decomposition of the conditioned set

Handling missing values via decomposition of the conditioned...

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2005 IEEE International Conference on Information Reuse and Integration, IRI - 2005

作者： Shyu, Mei-Ling Kuruppu-Appuhamilage, Indika Priyantha Chen, Shu-Ching Chang, Li Wu Department of Electrical and Computer Engineering University of Miami Coral Gables FL 33124 United States Distributed Multimedia Information System Laboratory School of Computer Science Florida International University Miami FL 33199 United States Center for High Assurance Computer Systems Naval Research Laboratory Washington DC 20375 United States

ISBN: (纸本)0780390938

In this paper, a framework for replacing missing values in a database is proposed since a real-world database is seldom complete. Good data quality in a database can directly improve the performance of any data mining algorithm in various applications. Our proposed framework adopts the basic concepts from conditional probability theories and further develops an algorithm to facilitate the capability of handling both nominal and numerical values, which addresses the problem of the inability of handling both nominal and numerical values with a high degree of accuracy in the existing algorithms. Several experiments are conducted and the experimental results demonstrate that our framework provides a high accuracy when compared with most of the commonly used algorithms such as using the average value, using the maximum value, and using the minimum value to replace missing values. © 2005 IEEE.

关键词： Data handling

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Feature subset selection for support vector machines using confident margin

Feature subset selection for support vector machines using c...

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International Joint Conference on Neural Networks (IJCNN)

作者： M. Kugler K. Aoki S. Kuroyanagi A. Iwata A.S. Nugroho Grad. School of Engineering Department of Computer Science & Engineering Nagoya Institute of Technology Nagoya Japan School of Life System Science & Technology Chukyo University Toyota Japan

The aim of this study is to develop a feature subset selection (FSS) method based on the margin of support vector machines (SVM). The problem of directly using the SVM margin is that it does not always provide clear relationship between its value and the performance of SVM, and the best obtained subset is not guaranteed to be the best possible one. In this paper, a new solution is describe by the introduction of the confident margin (CM) in the subset criterion, which permits to get near the best recognition rate by monitoring the peak of CM curve without directly calculating the recognition rate, in order to save computational time. The performance of the proposed method was evaluated in artificial and real-world data experiments.

关键词： Support vector machines Support vector machine classification Frequency selective surfaces Pattern recognition Filters computer science Electronic mail Monitoring Iron Algorithm design and analysis

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CNTs-insulator-semiconductor system for chemical and biological sensor applications

CNTs-insulator-semiconductor system for chemical and biologi...

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2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005

作者： Cheon, Jun-Ho Lin, Qing Kong, Byoung-Don Kang, Dong Won Kim, Lily Suh, Jung Sang Park, Young June Min, Hong Shick School of Electrical Engineering and Computer Science Nano System Institute-NCRC Seoul National University 151-744 Seoul Korea Republic of Dept. of Chemistry College of Natural Sciences Seoul National University 51-744 Seoul Korea Republic of

ISBN: (纸本)0976798506

A new Electrolyte-CNTs-Insulator-Semiconductor capacitor is proposed to achieve the compatibility with the CMOS technology. Wafer bonding technique is adopted to attach the AAO template with CNTs to semiconductor surface (the CNTs array grown in AAO template to SiO2/Si wafer). The CNTs are expected to enhance the sensitivity of the conventional EIS system and to offer the many chemical or biological active sites. The platinum reference electrode and 3.3M KCl solution are proved to act well as the functional liquid gate. From the capacitance-voltage measurements of the fabricated samples, the modulation of the semiconductor surface has been found to show the feasibility of the new structures for use in the high sensitive chemical and biological sensors.

关键词： Chemical sensors

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Improved vicinal SV algorithm

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Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology 2005年第11期25卷 967-970页

作者： Bi, Le-Peng Zheng, Zhi-Yun Song, Han-Tao Lu, Yu-Chang Department of Computer Science and Engineering School of Information Science and Technology Beijing Institute of Technology Beijing 100081 China State Key Laboratory of Intelligent Technology and System Tsinghua University Beijing 100084 China

Two improvements are introduced into vicinal-risk-minimization based support vector (SV) algorithm. Since the misclassified samples must be support vectors, a scheme for pruning hard-to-learn samples from the training set based on support vectors is presented. The parameter's determination of Gaussian vicinal function is proposed to be modified, based on the maximum likelihood criterion. Preliminary experimental results show that the pruning scheme and improvement of the parameter's determination of vicinal function much improved vicinal SV algorithm's generality, and can outperform support vector machine (SVM) by about 0.5% in test accuracy.

关键词： Learning algorithms

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Time Series Action Support by Mobile Robot in Intelligent Environment

Time Series Action Support by Mobile Robot in Intelligent En...

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IEEE International Conference on Robotics and Automation (ICRA)

作者： T. Fukuda Y. Nakauchi K. Noguchi T. Matsubara College of Engineeringineering System Graduate School of System and Information Engineering University of Tsukuba Tsukuba Ibaraki Japan Department of Computer Science National Defense Academy Yokosuka Japan

Recent development of information technology is making electric household appliances computerized and networked. If the environments surrounding us could recognize our activities indirectly by sensors, the novel services, which respect our activities, can be possible. In this paper, we propose human activity recognition system, which infers the next human action by taking account of the past human behaviors observed so far. We also developed cooking support robot, which suggests what the human should do next by voice and gesture. Experimental results confirmed the feasibility of the inference system and the quality of support.

关键词： Mobile robots Intelligent robots Humans Intelligent sensors Robot sensing systems Robot vision systems Information technology Home appliances computer networks Sensor systems

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Task placement for heterogeneous reconfigurable architectures

Task placement for heterogeneous reconfigurable architecture...

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IEEE International Conference on Field-Programmable Technology (FPT)

作者： M. Koester M. Porrmann H. Kalte Heinz Nixdorf Institute System and Circuit Technology University of Paderborn Germany School of Computer Science and Software Engineering University of Western Australia Australia

The concept of partial reconfiguration offers the possibility to dynamically place and remove hardware tasks on reconfigurable architectures, like FPGAs. Common placement algorithms, e.g. Best Fit, are designed for homogeneous architectures, since they do not consider any placement constraints of the hardware tasks. Due to the integration of, e.g., dedicated memory, current FPGAs are heterogeneous reconfigurable architectures. In this paper we introduce two heterogeneous placement algorithms, which are able to deal with the constraints of the hardware tasks. Both algorithms are compared to the Best Fit algorithm by using a simulation framework for partially configurable architectures. We propose concepts of an efficient hardware realization of our placement approach with Xilinx Virtex-II FPGAs. Moreover, we present a task placement mechanism to change the position of a hardware task on the FPGA by manipulating the configuration data of the task

关键词： Reconfigurable architectures Hardware Field programmable gate arrays Resource management computer architecture Circuits computer science Software engineering Australia computer vision

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Time sequence data mining for cooking support robot

Time sequence data mining for cooking support robot

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IEEE International Symposium on Computational Intelligence in Robotics and Automation (CIRA)

作者： Yasushi Nakauchi Tsukasa Fukuda Katsunori Noguchi Takashi Matsubara Graduate School of System and Information Engineering University of Tsukuba Tsukuba Ibaraki Japan Department of Computer Science National Defense Academy Yokosuka Japan

关键词： Data mining Humans Intelligent sensors Robot sensing systems Intelligent robots Mobile robots Robot vision systems Information technology Home appliances computer networks

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Intelligent kitchen: cooking support by LCD and mobile robot with IC-labeled objects

Intelligent kitchen: cooking support by LCD and mobile robot...

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2005 IEEE/RSJ International Conference on Intelligent Robots and systems

作者： Y. Nakauchi T. Fukuda K. Noguchi T. Matsubara Graduate School of System and Information Engineering University of Tsukuba Tsukuba Ibaraki Japan Department of Computer Science National Defense Academy Yokosuka Japan

Recent development of information technology is making electric household appliances computerized and networked. If the environments surrounding us could recognize our activities indirectly by sensors, the novel services, which respect our activities, can be possible. In this paper, we propose human activity recognition system, which infers the next human action by taking account of the past human behaviors observed so far. We also developed cooking support system by using an LCD touch panel on the kitchen counter and a mobile robot on the floor, which suggest what the human should do next by voice and gestures. Experimental results confirmed the feasibility of the inference system and the quality of support.

关键词： Intelligent robots Mobile robots Humans Intelligent sensors Counting circuits Robot vision systems Information technology Home appliances computer networks Merchandise

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Bandwidth guaranteed restorable multicast virtual private networks

Bandwidth guaranteed restorable multicast virtual private ne...

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IEEE International Conference on Personal Wireless Communication

作者： C. Hota G. Raghurama S.K. Jha W. Lau Computer Sc. & Information System Group El Birla Institute of Technology and Science Pilani India Electrical & Electronics Engineering Group Birla Institute of Technology and Science Pilani India School of Computer Science & Engineering University of New South Wales National Information and Communications Technology Australia NICTA Sydney Australia School of Computer Science & Engineering University of New South Wales Sydney Australia

We propose heuristic algorithms to compute optimized tunnel paths between single source and multiple destinations in a multicast VPN scenario. This is achieved by first building up a CPE based layout for the minimal cost (MC) multicast VPN problem and then selecting few core routers strategically. These we call active paths. We also compute backup paths for every active path for the sake of restorability, allowing sharing of backup bandwidth. This is also a type of online routing problem. For comparison purposes, we also formulate a mathematical model of the MC-multicast VPN problem using integer linear programming and solve it using the CPLEX tool.

关键词： Bandwidth Virtual private networks Multicast algorithms Multicast VPN Heuristic algorithms Costs Routing Mathematical model Integer linear programming IP networks

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