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International Joint Conference on Neural Networks (IJCNN)

作者： Shen Furao Keisuke Sakurai Youki Kamiya Osamu Hasegawa Japan Society for the Promotion of Science Japan State Key Laboratory for Novel Software Technology Nanjing University Nanjing China Department of Computer Intelligence and System Science Tokyo Institute of Technology Japan Imaging Science and Engineering Laboratory Tokyo Institute of Technology Japan

An online semi-supervised active learning algorithm is proposed, which is based on self-organizing incremental neural network (SOINN). The proposed method do not need any priori knowledge such as number of nodes or number of classes; it can automatically learn number of nodes and teacher vectors needed by the current task; It can realize online incremental learning even life-long learning. The experiments for artificial data and real world data show that the proposed method works efficiently.

关键词： Neural networks Learning systems Semisupervised learning Topology Training data Laboratories Artificial neural networks Supervised learning Costs Labeling

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Collaborative filtering recommendation algorithm based on cloud model

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Ruan Jian Xue Bao/Journal of software 2007年第10期18卷 2403-2411页

作者： Zhang, Guang-Wei Li, De-Yi Li, Peng Kang, Jian-Chu Chen, Gui-Sheng State Key Laboratory of Software Development Environment Beihang University Beijing 100083 China Institute of Electronic System Engineering Beijing 100840 China Information Security Center Shenzhen Graduate School Harbin Institute of Technology Shenzhen 518055 China School of Computer Science and Technology Shandong Jianzhu University Ji'nan 250101 China

Recommendation system is one of the most important technologies applied in e-commerce. Similarity measuring method is fundamental to collaborative filtering algorithm, and traditional methods are inefficient especially when the user rating data are extremely sparse. Based on the outstanding characteristics of Cloud Model on the process of transforming a qualitative concept to a set of quantitative numerical values, a novel similarity measuring method, namely the likeness comparing method based on cloud model (LICM) is proposed in this paper. LICM compares the similarity of two users on knowledge level, which can overcome the drawback of attributes' strictly matching. This work analysis traditional methods throughly and puts forward a novel collaborative filtering algorithm, which is based on the LICM method. Experiments on typical data set show the excellent performance of the present collaborative filtering algorithm based on LICM, even with extremely sparsity of data.

关键词： Electronic commerce

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NECESSARY AND SUFFICIENT CONDITIONS FOR DEADLOCKS IN FLEXIBLE MANUFACTURING systemS BASED ON A DIGRAPH MODEL

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Asian Journal of Control 2008年第2期6卷

作者： Wenle Zhang Robert P. Judd Paul Deering School of Electrical Engineering and Computer Science Ohio University Athens OH 45701. Dr. Judd has over twenty years of experience as an educator researcher and consultant in system simulation discrete event controls and systems integration. Dr. Judd has received over thirty research grants totaling over $3500000. His funding has come from both industrial and governmental sources. He is the author or co-author of over a hundred published papers in journals and conferences. He also wrote a book chapter devoted to integrating manufacturing design tools and edited a special issue of the International Journal of Computer Integrated Manufacturing dedicated to intelligent manufacturing systems. Dr. Judd holds a patent on simulation software integration. Russ College of Engineering and Technology Ohio University Athens OH 45701.

As typical discrete event systems, flexible manufacturing systems have been extensively studied in such aspects as modeling, control and performance analysis. One important topic in the study of such systems is the deadlock detection, prevention and avoidance. In the past decade, two major modeling formalisms, i.e., Petri nets and digraphs, have been adopted for developing deadlock control policies for flexible manufacturing systems. In this paper, the concepts of slack, knot, order and effective free space of circuits in the digraph are established and used to concisely and precisely quantify the sufficient conditions for a system state to be live. Necessary conditions for this liveness is quantified for a special class of system states - called evaluation states. The significance of the result is that the conditions are true for avoiding both primary deadlocks and impending deadlocks that are arbitrary steps away from a primary one, whereas only second level deadlocks have been studied in the literature. Examples are provided to illustrate the method.

关键词： Flexible manufacturing systems deadlock avoidance deadlock prevention petri net digraph

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Bridge Information Assurance Education Gap between the Majority and Minority Universities through Collaboration

Bridge Information Assurance Education Gap between the Major...

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International Conference on computer and Information science (ACIS)

作者： H. Yu X. Yuan J. Xu S. Providence B. Chu D. Gu Department of Computer Science NC A&T State University Greensboro NC USA Department of Software Engineering and Information System University of North Carolina Charlotte Charlotte NC USA Oracle Corporation Redwood Shores CA USA

Information security and assurance is a rapidly developing area therefore government and industry have high demand for information security professionals. This paper reports collaboration activities between North Carolina A&T State University (NC A&T SU) and University of North Carolina (UNC) Charlotte as well as results and lessons learned. Leveraging the strength of the Department of software engineering and Information system at UNC Charlotte the Department of computer science at NC A&T SU has established the new Information Assurance (IA) concentration undergraduate curriculum. Four new IA courses, five IA interactive simulation software packages and two isolated IA laboratories are developed. Faculty members in both universities have collaborated to manage and mentor the Cyber-Defender programs, host IA and Cyber Security symposiums, submit proposals, advise graduate students and publish papers. The outcome exhibits that the collaboration between the majority and minority universities serves as a pathway for the minority university to build competencies in information assurance, and bridged the widening "information assurance gap" between majority and minority universities.

关键词： Bridges Educational institutions Collaboration Information security Government software engineering Management information systems computer science Computational modeling software packages

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Topological localization based on salient regions in unknown environments

Topological localization based on salient regions in unknown...

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18th International Conference on Pattern Recognition, ICPR 2006

作者： Lu, Wang Yuling, Li Zixing, Cai Center of Intelligent System and Software School of Information Science and Engineering Central South University Changsha Hunan province China Department of Computer Science ZhongYuan University of Technology Zhengzhou Henan province China

ISBN: (纸本)0769525210

This paper presents a new topological localization system for mobile robot navigation based on salient visual regions. These salient regions are obtained by computing the opponencies of color and texture among multi-scale image spaces. Then they are organized to construct the vertex of topological map using hidden Markov model. So localization problem can be transformed to the evaluation problem of HMM. In our system, the topological map of environment can be created online and the robot locates itself concurrently. Experiments show that higher ratio of vertex recognition, that is localization, is obtained. And our system can guarantee mobile robot navigation safely in unknown environments. © 2006 IEEE.

关键词： Pattern recognition

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The consistent data replication service for distributed computing environments

The consistent data replication service for distributed comp...

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16th International Symposium on Methodologies for Intelligent systems, ISMIS 2006

作者： No, Jaechun Chang, Won Park Sung, Soon Park Dept. of Computer Software College of Electronics and Information Engineering Sejong University Seoul Korea Republic of Intelligent IT System Research Center Korea Electronics Technology Institute Bundang-gu Seongnam-si Korea Republic of Dept. of Computer Science and Engineering College of Science and Engineering Anyang University Anyang Korea Republic of

ISBN: (纸本)354045764X

This paper describes a data replication service for large-scale, data intensive applications whose results can be shared among geographically distributed scientists. We introduce two kinds of data replication techniques, called owner-initiated data replication and client-initiated data replication, that are developed to support data replica consistency without requiring any special file system-level locking functions. Also, we present performance results on Linux clusters located at Sejong University. © Springer-Verlag Berlin Heidelberg 2006.

关键词： Distributed computer systems

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REPLICA2Pro: Task relocation by bitstream manipulation in virtex-II/Pro FPGAs

REPLICA2Pro: Task relocation by bitstream manipulation in vi...

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3rd Conference on Computing Frontiers 2006, CF '06

作者： Kalte, Heiko Porrmann, Mario University of Western Australia School of Computer Science and Software Engineering 35 Stirling Highway Crawley WA 6009 Heinz Nixdorf Institute System and Circuit Technology University of Paderborn 33102 Paderborn Germany

ISBN: (纸本)1595933026

One vision of dynamic hardware reconfiguration is to deliver virtually unlimited hardware resources to a set of hardware tasks implementing arbitrary functions. By using partial reconfiguration, these tasks can be allocated and de-allocated on the reconfigurable architecture while others continue to operate. However, the exact placement of each task can only be determined during runtime according to the current resource allocation. This requires relocating each task from its original position after place and route to an area of available resources. The process of relocating tasks can result in a major time overhead. In order to solve this problem we have developed the REPLICA2Pro (Relocation per online Configuration Alteration in Virtex-2/-Pro) filter, which is capable of performing task relocations by manipulating the task's bitstream during the regular allocation process without any extra time overhead. The filter architecture, our reconfigurable system approach as well as our design flow and an experimental system setup are presented in this paper. Copyright 2006 ACM.

关键词： Field programmable gate arrays (FPGA)

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Edge Relaxation in Images using Directional Hierarchical Image Decomposition

Edge Relaxation in Images using Directional Hierarchical Ima...

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Proceedings of the Nordic Signal Processing Symposium (NORSIG)

作者： Dusan Heric Bozidar Potocnik Faculty of Electrical Engineering and Computer Science System Software Laboratory University of Maribor Maribor Slovenia

This paper presents a new hierarchical method of the edge relaxation by using an edge confidence measure. Proposed method is an adaptive and based on directional hierarchical image decomposition and an edge connecting algorithm. It is shown that such combination has low sensitivity to noise, while it is highly robust to outliers, and provide a quality edge connection mechanism

关键词： Image decomposition Image edge detection Image segmentation Image processing Relaxation methods Joining processes Labeling Image analysis computer science system software

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Image enhancement by using directional wavelet transform

Image enhancement by using directional wavelet transform

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International Conference on Information Technology Interfaces

作者： D. Heric B. Potocnik Faculty of Electrical Engineering and Computer Science System Software Laboratory University of Maribor Maribor Slovenia

The purpose of this paper is to introduce a novel image enhancement technique by using directional wavelet transform. Directional wavelet transform decomposes an image into four-dimensional space which augments the image by the scale and directional information. We show the directional information significantly improves image enhancement in noisy images in comparison with the classical techniques. Image enhancement is based on the multiscale singularity detection with an adaptive threshold whose value is calculated via maximum entropy measure. The proposed technique was tested on synthetic images at different signal-to-noise ratios and clinical images

关键词： Image enhancement Wavelet transforms Histograms Laplace equations Image processing Entropy Testing Signal to noise ratio Noise reduction Image analysis

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Multiscale Edge Detector

Multiscale Edge Detector

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International Symposium on Electronics in Marine (ELMAR)

作者： D. Heric B. Potocnik Faculty of Laboratory of Electrical Engineering and Computer Science System Software Laboratory University of Maribor Maribor Slovenia

The purpose of this paper is to introduce an novel edge detector using directional wavelet transform and signal registration. Directional wavelet transform decomposes an image into four-dimensional space which augments the image by the scale and directional information. We show the directional information significantly improves edge detection in noisy images in comparison with the classical multiscale edge detector, and enables more reliable edge tracing along an object boundary. Edge detection is based on the modulus maximum principle with an adaptive threshold whose value is calculated via maximum entropy measure. Edge tracing is done with signal alignment between neighbour edges

关键词： Image edge detection Detectors Wavelet transforms Discrete wavelet transforms Laboratories computer science system software Object detection Entropy Image registration

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