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science China Mathematics 2007年第7期50卷 1055-1064页

作者： Bao-xing CHEN~(1+) Xie-bin CHEN~2 Ji-xiang MENG~3 Wen-jun XIAO~4 1 department of computer science,Zhangzhou Teachers College,Zhangzhou 363000,China 2 department of Mathematics and Information science,Zhangzhou Teachers College,Zhangzhou 363000,China 3 College of Mathematics & System science,Xinjiang university,Urumqi 830046,China 4 department of computer science,South China university of Technology,Guangzhou 510641,China 1. department of computer science Zhangzhou Teachers College Zhangzhou 363000 China 2. department of Mathematics and Information science Zhangzhou Teachers College Zhangzhou 363000 China 3. College of Mathematics & System science Xinjiang University Urumqi 830046 China 4. department of computer science South China University of Technology Guangzhou 510641 China

The double loop network(DLN)is a circulant digraph with n nodes and outdegree *** is an important topological structure of computer interconnection networks and has been widely used in the designing of local area networks and distributed *** the number n of nodes,how to construct a DLN which has minimum diameter?This problem has attracted great attention.A related and longtime unsolved problem is:for any given non-negative integer k,is there an infinite family of k-tight optimal DLN?In this paper,two main results are obtained:(1)for any k≥0,the infinite families of k-tight optimal DLN can be constructed,where the number n(k,e,c)of their nodes is a polynomial of degree 2 in e with integral coefficients containing a parameter c.(2)for any k≥0, an infinite family of singular k-tight optimal DLN can be constructed.

关键词： double loop network diameter k-tight optimal singular k-tight optimal 05C12 05C20 05C85

C^1 C^2INTERPOLATION OF SCATTERED DATA POINTS　

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Applied Mathematics(A Journal of Chinese Universities) 1994年第1期9卷 1-9页

作者： WANG JIAYE AND ZHANG CAIMING(department of computer science,Shandong university Jinan 250100) 1. department of computer science Shandong University 250100 Jinan

In this paper an error in[4]is pointed out and a method for constructingsurface interpolating scattered data points is *** main feature of the methodin this paper is that the surface so constructed is polynomial,which... 详细信息

关键词： Interpolation Scattered Data Points triangle Polynomial BarycentricCoordinate.

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Lp shape deformation

science China(Information sciences) 2012年第5期55卷 983-993页

作者： GAO Lin1,ZHANG GuoXin 1 & LAI YuKun 2 1 department of computer science and Technology,Tsinghua university,Beijing 100084,China 2 School of computer science and Informatics,Cardiff university,Wales CF24 3AA,UK 1. department of computer science and Technology Tsinghua University Beijing 100084 China2. School of Computer Science and Informatics Cardiff University Wales CF24 3AA UK

Shape deformation is a fundamental tool in geometric *** methods consider preserving local details by minimizing some energy functional measuring local distortions in the L 2 *** strategy distributes distortions quite uniformly to all the vertices and penalizes ***,there is no unique answer for a natural deformation as it depends on the nature of the *** by recent sparse signal reconstruction work with non L 2 norm,we introduce general L p norms to shape deformation;the positive parameter p provides the user with a flexible control over the distribution of unavoidable *** with the traditional L 2 norm,using smaller p,distortions tend to be distributed to a sparse set of vertices,typically in feature regions,thus making most areas less distorted and structures better *** the other hand,using larger p tends to distribute distortions more evenly across the whole *** flexibility is often desirable as it mimics objects made up with different *** specifying varying p over the shape,more flexible control can be *** demonstrate the effectiveness of the proposed algorithm with various examples.

关键词： shape deformation Lp norm geometric modeling

A general communication performance evaluation model based on routing path decomposition

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Journal of Zhejiang university-science C(computers and Electronics) 2011年第7期12卷 561-573页

作者： Ai-lian CHENG 1,Yun PAN 1,2,Xiao-lang YAN 2,Ruo-hong HUAN 3 (1 department of Information science and Electronic engineering,Zhejiang university,Hangzhou 310027,China) (2 Institute of VLSI Design,Zhejiang university,Hangzhou 310027,China) (3 College of computer science and Technology,Zhejiang university of Technology,Hangzhou 310023,China) department of Information science and Electronic engineering Zhejiang University Institute of VLSI Design Zhejiang University

The network-on-chip (NoC) architecture is a main factor affecting the system performance of complicated multi-processor systems-on-chips (MPSoCs).To evaluate the effects of the NoC architectures on communication efficiency,several kinds of techniques have been developed,including various simulators and analytical *** simulators are accurate but time consuming,especially in large space explorations of diverse network configurations;in contrast,the analytical models are fast and flexible,providing alternative methods for performance *** this paper,we propose a general analytical model to esti-mate the communication performance for arbitrary NoCs with wormhole routing and virtual channel flow *** resolve the inherent dependency of successive links occupied by one packet in wormhole routing,we propose the routing path decomposition approach to generating a series of ordered link *** we use the traditional queuing system to derive the fine-grained transmission latency for each network *** to our experiments,the proposed analytical model provides a good approximation of the average packet latency to the simulation results,and estimates the network throughput precisely under various NoC configurations and ***,the analytical model runs about 10 5 times faster than the cycle-accurate NoC *** applications of the model including bottleneck detection and virtual channel allocation are also presented.

关键词： Analytical model Communication performance Network-on-chip (NoC) Queuing system Routing path decom-position Virtual channel

A Way to Build software Culture: Distributed Object-Oriented software engineering over Internet

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Wuhan university Journal of Natural sciences 2001年第Z1期6卷 359-361页

作者： Tian Ai jing, Zhang Ling, Li Zong rong department of computer science, Hubei university, Wuhan 430062, China State Key Laboratory of software engineering, Wuhan university, Wuhan 430072, China department of computer science Hubei University Wuhan 430062 China

This paper focuses on Distributed Object Oriented software engineering over Internet, which is a way to build software culture. We believe that our work will contribute to better understanding of how to meet the needs of the big potential software market and to promote the software industry in developing country. The United States and Western Europe have well established software industry and related civilization. software science, technology, and engineering are needed in China; however, maybe what is needed, first of all, is software civilization, including software ideas, customs, skills, arts, etc. We will draw a framework for the software culture as following: software is the most important commodity in this age; Brilliance of hardware component era has become past fact; A software component era is ahead; Traditional linear process model is obsolete; Modern software engineering has a new face, object evolution model; Distributed object oriented software engineering over Internet is an approach to software component era; and Complete software civilization will be formed all over the world in next century.

关键词： software software engineering object oriented methodology software component software culture

Fractal structure reconstruction for alumina-silicate refractory fiber and simulation of the thermal conductivity

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Journal of Thermal science 2010年第1期19卷 80-86页

作者： XIA Dehong,GUO Shanshan,and Ren Ling department of Thermal engineering,university of science and Technology Beijing,Beijing 100083,China department of Thermal engineering University of Science and Technology Beijing Beijing China

In this paper, it is proved that the intemal porous structure of alumina-silicate refractory fiber has fractal characteristics, which is reconstructed by the computer and the reconstructed structure further proved to have fractal characteristics. Based on the reconstructed structure, the network-thermal-resistance model is established to calculate the thermal conductivity of the fiber. It is shown that the calculated results agree well with the previous experimental ones, proving the correctness of the method.

关键词： fractal refractory fiber thermal conductivity

Incoherent control of two classes of finite-level quantum systems

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Journal of Systems engineering and Electronics 2011年第4期22卷 679-683页

作者： Chunlin Chen 1,2 and Zhenquan Qin 3,1.department of Control and System engineering,Nanjing university,Nanjing 210093,P.R.China 2.State Key Laboratory for Novel software Technology,Nanjing university,Nanjing 210093,P.R.China 3.School of software,Dalian university of Technology,Dalian 116620,P.R.China department of Control and System engineering Nanjing University Nanjing 210093 P. R. China State Key Laboratory for Novel software Technology Nanjing University Nanjing 210093 P. R. China School of software Dalian University of Technology Dalian 116620 P. R. China

The incoherent control of finite-level quantum systems is investigated. Following a brief introduction to coherent control paradigms in quantum control, a control problem that can not be accomplished using only coherent control is presented. For such a control problem, it is proved that it can be accomplished using incoherent control based on projective measurement and coherent control for two classes of finite-level quantum systems, i.e., eigenstate controllable quantum systems and wavefunction controllable quantum systems.

关键词： quantum control eigenstate controllability wavefunction controllability coherent control incoherent control.

Mining and Integrating Reliable Decision Rules for Imbalanced Cancer Gene Expression Data Sets

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Tsinghua science and Technology 2012年第6期17卷 666-673页

作者： Hualong Yu 1 , Jun Ni 2 , Yuanyuan Dan 3 , Sen Xu 4 1. School of computer science and engineering, Jiangsu university of science and Technology, Zhenjiang 212003, China 2. department of Radiology, Carver College of Medicine, The university of Iowa, Iowa City, IA 52242, USA 3. School of Biology and Chemical engineering, Jiangsu university of science and Technology, Zhenjiang 212003, China 4. School of Information engineering, Yancheng Institute of Technology, Yancheng 224051, China School of computer science and engineering Jiangsu University of Science and Technology Zhenjiang 212003 China|c|

There have been many skewed cancer gene expression datasets in the post-genomic era. Extraction of differential expression genes or construction of decision rules using these skewed datasets by traditional algorithms will seriously underestimate the performance of the minority class, leading to inaccurate diagnosis in clinical trails. This paper presents a skewed gene selection algorithm that introduces a weighted metric into the gene selection procedure. The extracted genes are paired as decision rules to distinguish both classes, with these decision rules then integrated into an ensemble learning framework by majority voting to recognize test examples; thus avoiding tedious data normalization and classifier construction. The mining and integrating of a few reliable decision rules gave higher or at least comparable classification performance than many traditional class imbalance learning algorithms on four benchmark imbalanced cancer gene expression datasets.

关键词： cancer gene expression data class imbalance paired differential expression genes decision ruleensemble learning majority voting

A Cognitive science Framework for the Analysis of Knowledge-Based Systems

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Journal of Systems engineering and Electronics 1994年第2期5卷 60-67页

作者： Feng Shan (department of Automatic Control engineering, Huazhong university of science and Technology, Wuhan,Hubei, 430074 PRC) department of Automatic Control engineering Huazhong University of Science and Technology Wuhan Hubei 430074 PRC

The paper presents a cognitive science framework for the analysis of knowledge-based systems,including people, media. simulation and expert systems, resulting in a practical model for the procedures ofknowledge engineering. Starting with the construct of a social organization model driven by anticipationand thed differentiating this into pesonal scientists with diverse relations to people and their internal andexternal communication, it provides powerful and general model of society. people, and the roles of peoplein society. This model extends naturally ic the role of conventional media in the knowledge processes ofsociety and the new roles of computer-based simulation and expert systems. In particular it provides amodel of knowledge transfer that enables the processes of knowledge engineering to be analyzed andautomated.

关键词： Cognitive modeling Knowledge-based systems Knowledge engineering Communal scientist Media.

Symbolic Computation Study of (2+1)-Dimensional Dispersive Long Wave Equations

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Communications in Theoretical Physics 2006年第8期46卷 199-202页

作者： LU Zhuo-Sheng~(1,2,+) and XIE Fu-Ding~(2,3) ~1School of science, Beijing university of Post and Telecommunications, Beijing 100876, China ~2Key Laboratory of Mathematics Mechanization, Academy of Mathematics and System sciences, the Chinese Academy of sciences, Beijing 100080, China ~3department of computer science, Liaoning Normal university, Dalian 116029, China department of Otolaryngology University Hospital VU P.O. Box 7057 1007 MB Amsterdam The Netherlands School of science Beijing University of Post and Telecommunications Beijing 100876 China

Seeking exact analytical solutions of nonlinear evolution equations is of fundamental importance in mathematical physics. In this paper, based on a constructive algorithm and symbolic computation, abundant new exact solutions of the (2+1)-dimensional dispersive long wave equations are obtained, among which there are soliton-like solutions, mult-soliton-like solutions and formal periodic solutions, etc. Certain special solutions are considered and some interesting localized structures are revealed.

关键词： dispersive long wave equations symbolic computation exact solution localized structure