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Design and implementation of marine dynamic environmental data integrating and information sharing system of Fujian Province

Design and implementation of marine dynamic environmental da...

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9th AGILE International Conference on Geographic Information Science: "Shaping the Future of Geographic Information Science in Europe", AGILE 2006

作者： Fan, Ming-Hui Chen, Chong-Cheng Chi, Tian-He Lin, Jia-Xiang Key Laboratory of Data Mining and Information Sharing of Ministry of Education Spatial Information Research Center Fuzhou University Fuzhou 350002 China Institute of Remote Sensing Application Chinese Academy of Science Beijing 100101 China

A general information integrating and sharing architecture is discussed, the components of the architecture are put forward, a data integrating method based on distributed data warehouse together with a information sh... 详细信息

关键词： Information services

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Operational semantics of the seal calculus

Operational semantics of the seal calculus

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4th IFIP TCI2 International Conference on Intelligent Information Processing, IIP 2006

作者： Jing, Zhang Li-Cui, Zhang De-Gui, Guo College of Computer Science and Technology Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education of China Jilin University Changchun 130012 China College of Communication Engineering Jilin University Changchun 130012 China

ISBN: (纸本)9780387446394

As a distributed process calculus with localities and mobility of computational entities, Seal calculus is playing an important role in expressing key features such as security and mobility of Internet programming directly. However, little implementation technique proposed for the calculus, partly due to the complication of inobile computation, which fusions three important techniques: concurrency, distribution and mobility at the same time. The abstract machine PSN for a distributed implementation of the Seal calculus is presented. In PSN the logical structure of a seal system and its physical distribution are separated which induces a more simple and clear implementation. Moreover, an operational semantics description of the Seal calculus based on PSN is given.

关键词： Calculations

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Mutual conversion of regression and classification based on least squares support vector machines

Mutual conversion of regression and classification based on ...

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3rd International Symposium on Neural Networks, ISNN 2006 - Advances in Neural Networks

作者： Jiang, Jing-Qing Song, Chu-Yi Wu, Chun-Guo Liang, Yang-Chun Yang, Xiao-Wei Hao, Zhi-Feng Key Laboratory of Symbol Computation and Knowledge Engineering Jilin University Ministry of Education Changchun 130012 China College of Mathematics and Computer Science Inner Mongolia University for Nationalities Tongliao 028043 China Key Laboratory of Information Science and Engineering Beijing Jiaotong University Railway Ministry Beijing 100044 China School of Mathematical Science South China University of Technology Guangzhou 510640 China

ISBN: (纸本)354034439X

Classification and regression are most interesting problems in the fields of pattern recognition. The regression problem can be changed into binary classification problem and least squares support vector machine can be used to solve the classification problem. The optimal hyperplane is the regression function. In this paper, a one-step method is presented to deal with the multi-category problem. The proposed method converts the problem of classification into the function regression problem and is applied to solve the converted problem by least squares support vector machines. The novel method classifies the samples in all categories simultaneously only by solving a set of linear equations. Demonstrations of numerical experiments are performed and good performances are obtained. Simulation results show that the regression and classification can be converted each other based on least squares support vector machines. © Springer-Verlag Berlin Heidelberg 2006.

关键词： Learning systems

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A dynamic time delay neural network for ultrasonic motor identification and control

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3rd International Symposium on Neural Networks, ISNN 2006 - Advances in Neural Networks

作者： Liang, Yanchun Zhang, Jie Xu, Xu Yang, Xiaowei Hao, Zhifeng Key Laboratory of Symbol Computation and Knowledge Engineering Jilin University Ministry of Education Changchun 130012 China College of Mathematics Jilin University Changchun 130012 China School of Mathematical Science South China University of Technology Guangzhou 510640 China

ISBN: (纸本)3540344373

A novel dynamic time delay neural network is proposed for ultrasonic motors identification and control in this paper. By introducing time delay neurons, the neural network identifier and controller of ultrasonic motors are constructed. Both of them are trained online by using an improved back-propagation algorithm. The usefulness and validity of the presented algorithm is examined by the experiments. © Springer-Verlag Berlin Heidelberg 2006.

关键词： Neural networks

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Modeling of Pinus Massoniana Based Morphological Architecture

Modeling of Pinus Massoniana Based Morphological Architectur...

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International Conference on Artificial Reality and Telexistence (ICAT)

作者： Liyu Tang Chongcheng Chen Qinmin Wang Jingjing Sun Key Laboratory of Data Mining and Information Sharing of Ministry of Education Fuzhou University Fujian China

In order to make 3D model representing Pinus Massoniana more realistic, field investigation and measurements were conducted in Wuyi Plantation in Zhangping City, Fujian Province, P.R. china. We measured parameters characteristic of Pinus Massoniana aerial architecture, then analyzed and quantified relationship between plant components and growth law. Based on the local-to-global model, the tree was decomposed into three components: a main trunk, several levels of brunches and leaves. We used above derived parameters to depict the structure and shape characteristics of Pinus Massoniana. Combined with polyhedron geometric modeling and parameterized procedural modeling, a parameterized procedural tree model is given with a hybrid representation method. Implementation of the interactive modeling tool was written in Visual C++, using OpenGL libraries. The model could reconstruct Pinus Massoniana at different ages by modifying parameters. And the same time, the 3D Pinus Massoniana scene was constructed by populating tree models in the digital elevation model.

关键词： Shape Solid modeling Computer architecture Soil Sun data mining Cities and towns Software libraries Layout Digital elevation models

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An Improved Artificial Immune Algorithm with a Dynamic Threshold

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Journal of Bionic engineering 2006年第2期3卷 93-97页

作者： Zhang Qiao Xu Xu Liang Yan-chun Key Laboratory of Symbol Computation and Knowledge Engineering （Ministry of Education P. R. China） Qianwei Campus Jilin University Changchun 130012 P. R. China College of Mathematics Qianwei Campus Jilin University Changchun 130012 P. R. China

An improved artificial immune algorithm with a dynamic threshold is presented. The calculation for the affinity function in the real-valued coding artificial immune algorithm is modified through considering the antibody＇s fitness and setting the dynamic threshold value. Numerical experiments show that compared with the genetic algorithm and the originally real-valued coding artificial immune algorithm, the improved algorithm possesses high speed of convergence and good performance for preventing premature convergence.

关键词： dynamic threshold artificial immune algorithm genetic algorithm antibody

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AN ADAPTIVE LOAD BALANCING ALGORITHM IN OBJECT-BASED STORAGE SYSTEMS

AN ADAPTIVE LOAD BALANCING ALGORITHM IN OBJECT-BASED STORAGE...

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2006 International Conference on Machine Learning and Cybernetics(IEEE第五届机器学习与控制论坛)

作者： LING-JUN QIN DAN FENG Key Laboratory of Data Storage Systems Ministry of Education of China Huazhong University of Science and Technology Wuhan China

Load balancing is a key issue in large-scale Object-Based Storage Systems. Many data replication and migration algorithms have been proposed for load balancing in distributed systems. However, the two operations, data replication and migration, are studied separately. An adaptive load balancing algorithm is presented in this paper, which combines replication and migration in a uniform ***, this algorithm uses a hybrid load metric which reflects short-term and long-term load status. To solve the online problem with a changing workload, the algorithm employs an adaptive mechanism to keep track of the characteristics of workloads. The simulation results show that the algorithm with object replication and migration can markedly reduce the overall response time

关键词： Load balancing Object-based Storage

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A Hybrid Markov Model Based on EM Algorithm

A Hybrid Markov Model Based on EM Algorithm

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International Conference on Control, Automation, Robotics and Vision (ICARCV)

作者： Xue-gang Yu Yan-heng Liu Da Wei Ling-yin Lei Key laboratory of symbolic computation and knowledge Engineering of ministry of education Jilin University Beijing China

Order-k Markov model can be used in many fields such as natural language understanding, coding, mobile path prediction and so on to make prediction and then control. But the model has to face the problem of state space expansion. Taking the mobile path prediction as the research background, the paper firstly proposes a step-k Markov model and validates its feasibility. Secondly, a hybrid Markov predictor model is put forward based on the step-k Markov model. The complexity of the hybrid Markov model is O(N) while the order-k Markov model is O(N 2 ). And the memory demand of the hybrid Markov model is O(N 2 ) while order-k Markov model is O(N 3 ). Finally, it is proved that the hybrid Markov predictor can get close performance with order-k Markov predictor at much lower expense by conditional entropy analysis and user mobility data analysis. Also it can alleviate the zero probability problem in order-k Markov model to some extent. The hybrid Markov predictor is more practical than order-k Markov predictor under WLAN

关键词： Predictive models State-space methods Entropy Mobile computing Wireless LAN Natural languages Accuracy Wireless networks educational institutions Equations

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Creation of a Java-based interactive modeling environment with tape library model example

Creation of a Java-based interactive modeling environment wi...

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International Workshop on Networking, Architecture, and Storages (IWNAS)

作者： LingFang Zeng Dan Feng Fang Wang Zhuo Cheng Qiang Zou Key Laboratory of Data Storage System Ministry of Education School of Computer Huazhong University of Science and Technology China

Within high performance backup/restore environment there are cases that require the retrieval of massive data with huge size from tape storage to disks. The data retrieval time affects the system utilization or the system recovering speed. Some schemes were/will be proposed to place data across tape drives for minimized data retrieval latency. SimTape, a Java-based tape library simulator, is built to compare above mentioned allocation schemes which minimize data seek time and tape switch time respectively. This paper describes the development and application of SimTape's software simulation model, also, for the design and optimization of the record, readout and data recovery processes common to all existing tape library processes. The simulation model provides an accurate statistical report from which each scenario can be evaluated

关键词： Java Software libraries Robots Information retrieval Scheduling algorithm Delay Switches Throughput Analytical models Graphical user interfaces

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Identification of Transcription Factor Binding Sites Using GA and PSO

Identification of Transcription Factor Binding Sites Using G...

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International Conference on Intelligent Systems Design and Applications (ISDA)

作者： Xiao-yu Chang Chun-guang Zhou Yan-wen Li Ping Hu College of Computer Science Key Laboratory of Symbol Computation and Knowledge Engineering of the Ministry of Education Jilin University China College of Computer Science Key Laboratory of Symbol Computation and Knowledge Engineering of the Ministry of Education department of computer science Northeast Normal University Changchun China

Identification of transcription factor binding sites from the upstream regions of genes is a highly important and unsolved problem. In this paper, we propose a novel framework for using evolutionary algorithm to solve this challenging issue. Under this framework, we use two prevalent evolutionary algorithms: genetic algorithm (GA) and particle swarm optimization (PSO) to find unknown sites in a collection of relatively long intergenic sequences that are suspected of being bound by the same factor. This paper represents binding sites motif to position weight matrix (PWM) and introduces how to code PWM to genome for GA and how to code it to particle for PSO. We apply these two algorithms to 5 different yeast saccharomyces cerevisiae transcription factor binding sites and CRP binding sites. The results on saccharomyces cerevisiae show that it can find the correct binding sites motifs, and the result on CRP shows that these two algorithms can achieve more accuracy than MEME and Gibbs sampler

关键词： Evolutionary computation Pulse width modulation Genomics Bioinformatics Genetic algorithms Particle swarm optimization Biology computing Evolution (biology) educational institutions Computer science

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