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5th International Conference on Natural Computation, ICNC 2009

作者： Wang, Shu Chen, Ling Department of Computer Science Yangzhou University Yangzhou 225009 China State Key Lab. of Novel Software Technology Nanjing University Nanjing 210093 China

ISBN: (纸本)9780769537368

We present a particle swarm optimization algorithm OT-PSO using orthogonal test technique. Based on the classical PSO, OT-PSO searches for local optimum in the neighbor area of the global best solution by using the method of orthogonal test design. OT-PSO can probe the solutions uniformly distributed in the search space and select the better ones. Using those better solutions OT-PSO can guide the particles searching towards the correct direction in the latter iterations so as to speed up the convergence, get more precise solutions and avoid local optimum. Our experimental results show that OT-PSO algorithm not only has faster convergence speed, but also can improve the accuracy of solutions effectively and enhance the robustness of the algorithm. © 2009 IEEE.

关键词： Particle swarm optimization (PSO)

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Metrics of graph abstraction for component-based software architecture

Metrics of graph abstraction for component-based software ar...

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2009 WRI World Congress on computer science and Information Engineering, CSIE 2009

作者： Guo, Wei Xiong, Zhong-Wei Xu, Ren-Zuo College of Mathematics and Computer Science Jianghan University Wuhan 430072 China State Key Lab. of Software Engineering Wuhan University Wuhan 430072 China

ISBN: (纸本)9780769535074

The challenges for building the component-based software architecture are how to estimate the assembly of reusable software components and make the properties forecast to the associated architecture. To address these issues, this paper discerns the assembly patterns of components and proposes using graph theory to depict the component-based architecture at first. Then, the component assembly graph has been defined as the abstract representation of the component assembly in the architecture, which is a key factor in determining the suitable architectural structure. Based on such graph theory, some metrics have been defined to measure the components assembly. At the end, the paper discusses how to optimize the architecture from component level, which also shows the graph theory should be paid attention to for the software engineering in future. © 2008 IEEE.

关键词： Graph theory

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A phylogenetic tree constructing method based on ant colony partitioning

A phylogenetic tree constructing method based on ant colony ...

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1st International Conference on Information science and Engineering, ICISE2009

作者： Chen, Ling Qin, Ling Liu, Wei Chen, Bolun Department of Computer Science Yangzhou University Yangzhou China State Key Lab. of Novel Software Tech. Nanjing University Yangzhou China Department of Computer Science Nanjing University of Aeronautics and Astronautics Nanjing China

ISBN: (纸本)9780769538877

A new method for constructing phylogenetic trees from a given set of objects (proteins, species , etc.) is presented. The method bisects the set of gene sequences so that the sequences within one subset have most similarity, and the gene sequences between different subsets have most difference. Recursively repeating such bisecting until procedure until all the subsets contains only one gene sequence. With these subsets, a phylogenetic tree is progressively constructed where the leaves are the gene sequences. Each level of bisecting is based on an extension of ant colony optimization for traveling salesman problem. Experimental results show that our algorithm is easier to implement and more efficient. It can convergence faster and obtain higher quality results than other methods. ©2009 IEEE.

关键词： Ant colony optimization

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Incremental outlier detection in data streams using local correlation integral 09

Incremental outlier detection in data streams using local co...

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24th Annual ACM Symposium on Applied Computing, SAC 2009

作者： Lu, Xinjie Yang, Tian Liao, Zaifei Elahi, Manzoor Liu, Wei Wang, Hongan Graduate University Chinese Academy of Sciences Beijing China Institute of Software Chinese Academy of Sciences Beijing China State Key Lab. of Computer Science Institute of Software Chinese Academy of Sciences Beijing China

ISBN: (纸本)9781605581668

In this paper, an incremental outlier detection technique capable of dealing with a large amount of data is presented and evaluated in the context of intrusion detection. The proposed method is based on the LOcal Correlation Integral (LOCI for short). The detection technique consists of two parts. The first part named insertion receives the sequence of input point and updates Multi-granularity DEviation Factor (MDEF) of the point at intervals. The second part named deletion deletes one or a batch of points. This technique is able to process streaming data in a single scan. Moreover, the number of updates in the incremental LOCI algorithm per insertion/deletion of a single data record does not depend on the total number of data records. Experimental results with real life data sets show that the technique is capable of dealing with data streams, successfully detecting outlier. Copyright 2009 ACM.

关键词： Intrusion detection

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An approximate approach to constraint solving in soft sensing 09

An approximate approach to constraint solving in soft sensin...

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24th Annual ACM Symposium on Applied Computing, SAC 2009

作者： Yang, Tian Liao, Zaifei Lu, Xinjie Wang, Hongan Graduate University Chinese Academy of Sciences Beijing China Institute of Software Chinese Academy of Sciences Beijing China State Key Lab. of Computer Science Institute of Software Chinese Academy of Sciences Beijing China

ISBN: (纸本)9781605581668

Soft sensing is usually presented as a constraint solving problem. In a manufacturing context, traditional methods of soft sensing have to face challenges in robustness and efficiency. In this paper, we proposed a granular-based approach to constraint solving for soft sensing. In our method, we first construct a granular-based soft sensing model, then estimate bounds of each granule, and finally solve this granulated problem with a smaller size. According to our analysis, this method is robust and efficient. Copyright 2009 ACM.

关键词： Codes (symbols)

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ProcessLine: Visualizing time-series data in process industry

ProcessLine: Visualizing time-series data in process industr...

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VAST 09 - IEEE Symposium on Visual Analytics science and Technology

作者： Xiongfei, Luo Hongan, Wang Feng, Tian Wei, Liu Dongxing, Teng Guozhong, Dai Graduate University Chinese Academy of Sciences Beijing China Institute of Software Chinese Academy of Sciences Beijing China State Key Lab. of Computer Science Institute of Software Chinese Academy of Sciences Beijing China

ISBN: (纸本)9781424452835

In modern process industry, it is often difficult to analyze a manufacture process due to its numerous time-series data. Analysts wish to not only interpret the evolution of data over time in a working procedure, but also examine the changes in the whole production process through time. To meet such analytic requirements, we have developed ProcessLine, an interactive visualization tool for a large amount of time-series data in process industry. The data are displayed in a fisheye timeline. ProcessLine provides good overviews for the whole production process and details for the focused working procedure. A preliminary user study using beer industry production data has shown that the tool is effective. ©2009 IEEE.

关键词： Visualization

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A novel evolutionary algorithm with component-based model

A novel evolutionary algorithm with component-based model

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2009 International Conference on Computational Intelligence and software Engineering, CiSE 2009

作者： Li, Shen Li, Yuanxiang Wei, Bo Wu, Yu State Key Lab. of Software Engineering Wuhan University Wuhan 430072 China Department of Computer Science Wuhan University of Technology Wuhan 430070 China International School of Software Wuhan University Wuhan 430072 China

ISBN: (纸本)9781424445073

This paper presents a component-based model with a novel ranking method (CMR) for constrained evolutionary optimization. In general, many constraint-handling technique inevitably solve two important problems: (1) how to generate the feasible solutions, (2) how to direct the search to find the feasible optimal solution. For the first problem, this paper introduces a component-based model. The model is useful for exploiting valuable information from infeasible solutions and for transforming infeasible solutions into feasible ones. Furthermore, a new ranking strategy is designed for the second problem. The new algorithm is tested on several well-known benchmark functions, and the empirical results suggest that it continuously found the optimums in 30 runs and has better standard deviations for robustness and stability. ©2009 IEEE.

关键词： Evolutionary algorithms

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SAR image despeckling based on edge detection and nonsubsampled second generation bandelets

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Journal of Systems Engineering and Electronics 2009年第3期20卷 519-526页

作者： Zhang Wenge~(1,2),Liu Fang~(1,2),Jiao Licheng~(2,3)& Gao Xinbo~(2,3) 1.School of computer science and Technology,Xidian Univ.,Xi’an 710071,P.R.China 2.key lab.of Intelligent Perception and Image Understanding of Ministry of Education of China,Xi’an 710071,P.R.China 3.inst.of Intelligent Information Processing,Xidian Univ.,Xi’an 710071,P.R.China School of Computer Science and Technology Xidian Univ. Xi'an 710071 P. R. China Key Lab. of Intelligent Perception and Image Understanding of Ministry of Education of China Xi'an 710071 P. R. China Key Lab. of Intelligent Perception and Image Understanding of Ministry of Education of China Xi'an 710071 P. R. China Inst. of Intelligent Information Processing Xidian Univ. Xi'an 710071 P. R. China

To preserve the sharp features and details of the synthetic aperture radar （SAR） image effectively when despeckling, a despeckling algorithm with edge detection in nonsubsampled second generation bandelet transform （NSBT） domain is proposed. First, the Canny operator is utilized to detect and remove edges from the SAR image. Then the NSBT which has an optimal approximation to the edges of images and a hard thresholding rule are used to approximate the details while despeckling the edge-removed image. Finally, the removed edges are added to the reconstructed image. As the edges axe detected and protected, and the NSBT is used, the proposed algorithm reaches the state-of-the-art effect which realizes both despeckling and preserving edges and details simultaneously. Experimental results show that both the subjective visual effect and the mainly objective performance indexes of the proposed algorithm outperform that of both Bayesian wavelet shrinkage with edge detection and Bayesian least square-Gaussian scale mixture （BLS-GSM）.

关键词： computer image processing synthetic aperture radar speckle edge detection nonsubsampled second generation bandelet transform Canny operator threshold shrinkage.

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Multi quay crane scheduling problem based on ACO in container terminals

Multi quay crane scheduling problem based on ACO in containe...

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International Conference on Management and Service science, MASS 2009

作者： Su, Wang Wenbin, Hu Computer Center School of Information Science and Technology East China Normal University Shang Hai China State Key Lab. for Novel Software Technology Nanjing University Nan Jing China

ISBN: (纸本)9781424446391

Quay crane scheduling problem is a very important multi resource scheduling problem in container terminals. This paper gives the general model of quay crane scheduling and introduces a heuristic method Ant Colony Optimization to resolve this problem. According to the advantages of ACO for single resource scheduling, virtual nodes are added into the scheduling graph to change the multi resource scheduling to single resource scheduling. The simulation of quay crane scheduling in practice get satisfactory results. ©2009 IEEE.

关键词： Ant colony optimization

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Stream data classification using improved fisher discriminate analysis

Stream data classification using improved fisher discriminat...

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作者： Chen, Ling Zou, Ling-Jun Li, Tu Department of Computer Science Yangzhou University Yangzhou China State Key Lab. of Novel Software Tech. Nanjing University Nanjing China College of Information Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing China

A modified Fisher discriminate analysis method for classifying stream data is presented. To satisfy the real-time demand in classifying stream data, this method defines a new criterion for Fisher discriminate analysis. Since the new criterion requires less computation and memory space, it is much faster and more suitable for online processing in stream data environment. It can overcome the problem of singular within-class scatter matrix in traditional FDA. Our algorithm speeds up the mining process while maintaining the high classification accuracy and capturing the up-to-date trends in the stream. Experiments on real and synthetic data sets show that our algorithm can improve the classification accuracy and speed for stream data classification. © 2009 Academy Publisher.

关键词： Classification (of information)

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