计算机科学

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史忠植董明楷蒋运承盛秋戬张海俊

计算机科学. 2003, 30 (9): 1-4.

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Intelligent Web functions essentially as an autonomic entity. The Web automatically regulates the func-tions and cooperation of related Web sites and available application services. In the paper we will discuss the key is-sues related to the intelligent W

面向Aspect的程序设计——一种新的编程范型

曹东刚梅宏

计算机科学. 2003, 30 (9): 5-10.

摘要 ( 74 )

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Currently the main stream programming paradigm is Object Oriented Programming: OOP, which has got-ten great success. The advantage of OOP is that it provides effective modularity support, and enables direct mappingfrom requirement space to design space,

算法工程的思想、方法与工具——以SAT算法为研究实例

焦加麟韩晓峰徐良贤

计算机科学. 2003, 30 (9): 11-13.

摘要 ( 71 )

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The recently emerging idea of Algorithm Engineering in the community of Computer Science is about how to engineer computer algorithms by integrating the design, analysis, implementation, experimental testing, refine-ment, etc. of them, aiming at improvin

基于UniNet的对象概念研究

周国富余鹏袁崇义

计算机科学. 2003, 30 (9): 14-18.

摘要 ( 84 )

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This paper discusses concepts on object from UniNet view and shows that there exists the flow of controlin object system except for exchanging of messages between objects. Meanwhile, the paper presents an independent mechanism of object communication s

关于HLA研究的几个问题

吕良权赵沁平

计算机科学. 2003, 30 (9): 19-21.

摘要 ( 78 )

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With the requh-ement of actual simulation application and the development of simulation standards, this pa-per analyzes HLA/RTI services characteristics, and then summaries the advantage and disadvantage of HLA. It is pointed out that RTI performance meas

统计语言模型综述

邢永康马少平

计算机科学. 2003, 30 (9): 22-26.

摘要 ( 105 )

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The Statistical Language Model (SLM) is a distribution to capture the generation rule in natural language.Since the first model was proposed in 1980, the SLM was used in many application such as speech recognition, opticcharacter recognition, machine tra

双库协同机制对知识发现主流发展的驱动

周颖杨炳儒

计算机科学. 2003, 30 (9): 27-30.

摘要 ( 95 )

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The paper, by a research report, summarizes emergence and definition of double bases cooperating mecha-nism, and introduces its driving force and influence to many sides of main stream of knowledge discovery from struc-tural model to algorithm , from str

逻辑AI中的容变能力的研究

朱建中戈也挺骆斌陈世福

计算机科学. 2003, 30 (9): 31-34.

摘要 ( 94 )

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In this paper a survey of elaboration tolerance in logical AI is provided. John McCarthy views elaboration tolerance as the key property of any formalism that can represent information in the common sense informatic situa-tion. The goal of studying elabo

基于混合杂交与间歇变异的约束优化演化算法

周永华毛宗源

计算机科学. 2003, 30 (9): 35-38.

摘要 ( 83 )

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In solving constrained optimization problems with genetic algorithms, more emphases are laid on handling constraints than increasing the search capability of algorithms, which often leed to unsatisfied results as reported inmost literatures. This paper pr

肺癌分类识别中的神经网络集成技术研究

杨育彬李宁陈世福陈兆乾

计算机科学. 2003, 30 (9): 39-42.

摘要 ( 70 )

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This paper describes a neural network ensemble method in lung cancer cell identification process. A neural network ensemble algorithm LCNE based on image feature extraction is proposed. Firstly, LCNE algorithm trains different neural network classifiers

基于概率型径向基神经网络（P—RBFN）的人脸识别

於东军赵海涛杨静宇

计算机科学. 2003, 30 (9): 43-45.

摘要 ( 68 )

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A probabilistic radial basis function network (P-RBFN)is presented for face recognition. Each P-RBFN isonly responsible for the recognition of one class. To a given face pattern to be identified, the probability of the givenface pattern belonging to eve

Web使用挖掘的应用研究

刘丽珍宋瀚涛陆玉昌

计算机科学. 2003, 30 (9): 46-48.

摘要 ( 66 )

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Some effective and efficient knowledge patterns will be gained through searching, integrating, mining and analyzing on the Web. These useful knowledge patterns can help us to build so efficient Web site that WWW can ser-vice people well. In this paper we

空间数据挖掘关键问题研究

肖予钦景宁吴秋云钟志农

计算机科学. 2003, 30 (9): 49-53.

摘要 ( 74 )

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With the rapid development of remote sensing and mapping technology and the widespread application of spatial database system, the spatial data collected and stored by human expand increasingly. These very large datasets far exceed human's capabilities o

基于统计的句法分析技术综述

孟遥李生赵铁军杨沐昀

计算机科学. 2003, 30 (9): 54-58.

摘要 ( 88 )

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Parsing is a fundamental problem in natural language processing. This paper presents a critical overview of the state-of-the-art in statistical parsing technology, including the primary statistical theory, statistical models and the parsing evaluation. At

基于统计语言模型的双向词类标注方法

刘启和詹思瑜杨国纬

计算机科学. 2003, 30 (9): 59-60.

摘要 ( 73 )

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In the paper, we introduce chinese corpus tagging based on statistical language model (bi-gram model)and Huang-Yu's smoothing method. Especially, we also suggest a two-directions method based on statistical languagemodel, namely, we not only compute proba

UML与多Agent应用系统建模

孙华志

计算机科学. 2003, 30 (9): 61-63.

摘要 ( 74 )

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In order to guarantee the quality and raising the reliability and maintainability of the system, we need to provide the support for designing the Agent-based software system. In view of the consistency of the Agent's conceptwith Object's, we analyze the t

Foley—Sammon鉴别矢量集理论分析及优化模型

徐勇杨强杨静宇

计算机科学. 2003, 30 (9): 64-66.

摘要 ( 82 )

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The attribute of the maximum of R(ξ) in arbitrary subspace of Rn is discussed dedicatedly. The theory anal-ysis indicates that every F-S discriminant vector is better than respective vector in other discriminant vectors sets,which consist of eigenvectors

扩展的向量辐射度计算方法

孙元浩龚震宇潘金贵

计算机科学. 2003, 30 (9): 67-69.

摘要 ( 69 )

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An algorithm is introduced which extends vector-based radiosity to be suitable for volume clusters. In thisalgorithm, the powers and surface areas of volume cluster are represented by vectors, which are used in a modified formula to compute the transferr

一种基于自适应阈值的图像去噪新方法

尚晓清王军锋宋国乡

计算机科学. 2003, 30 (9): 70-71.

摘要 ( 75 )

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Selecting threshold is the most important in threshold-based nonlinear filtering by wavelet transform. In this paper, a novel adaptive threshold is proposed by minimizing a Bayesian risk(It is adaptive to subband because it depends on data-driven estimate

基于彩色立体视觉的障碍物快速检测方法

李庆忠陈显华顾伟康

计算机科学. 2003, 30 (9): 72-75.

摘要 ( 68 )

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Real-time obstacle detection method is a key technique for machine vision based mobile robot and au-tonomous land vehicle navigation in unstructured environments. In this paper o considering the real-time requirement for stereo matching algorithm, an adap

基于Markov随机场和Bayesian理论的脑内磁源重建

胡净胡洁叶盛

计算机科学. 2003, 30 (9): 75-78.

摘要 ( 95 )

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MEG source image reconstruction, an important and difficult problem in image processing applications, is formulated as ill-posed inverse problem, so regularization is necessary. Here, we adopt stochastic regularization,i.e. , based on Markov random field

一种基于视觉特性的图像盲去模糊方法

蒋金山余英林陆子强郭国雄

计算机科学. 2003, 30 (9): 79-80.

摘要 ( 83 )

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In many various image-debluring methods, Visual Characteristics are not consides. This paper proposes an image-dehluring method based on the frequency and direction characteristics of human visual system by weighting high frequency subband of blured imag

具有真实感的长纱丝形态图像智能生成系统核心算法的设计

徐汀荣

计算机科学. 2003, 30 (9): 81-82.

摘要 ( 69 )

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This thesis illustrates configuration of continuous twisted thread mathematic model construction and the key algorithm of how to intelligent produce the configuration of continuous twisted thread real picture from its mathe-matic model construction and b

粗糙模糊集的格论性质

刘贵龙

计算机科学. 2003, 30 (9): 83-84.

摘要 ( 64 )

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Let U denote a finite and nonempty set called the universe, and P(U) a power set. Suppose R is an equiva-lence relation on U. Consider the equivalence relation ≈ (X≈Y←→^-RX=^-R and RX=RY, X,Y, ∈ F(U)) on F(U),the quotient set denoted by F(U)/≈. In this pa

IPoIB体系结构及其应用

刘爱华钱德沛董小社乔楠

计算机科学. 2003, 30 (9): 85-88.

摘要 ( 77 )

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InfiniRand (IB) is a high speed, channel based interconnecting technology between systems and devices. It will remove the bottleneck limiting the performance of current servers and storage divices. This article proposes an IP over IrdiniBand (IPoIB) archi

Web超链分析算法研究

朱炜王超李俊潘金贵

计算机科学. 2003, 30 (9): 89-93.

摘要 ( 87 )

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The World Wide Web serves as a huge, widely distributed, global information service center, and expand-ing in a rapid speed. It is import to find the information the user need precisely and rapidly. In recent years, re-searchers discovery that rich and im

对等网络中搜索策略的研究

李晓戈杨寿保

计算机科学. 2003, 30 (9): 94-96.

摘要 ( 95 )

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Being supported by distributed computing technology, Peer-to-Peer(P2P) computing may be one of themost important technology that influences the Internet in the future. Searching problem seems tg be more importantin P2P environment for lacking of centraliz

时间序列的快速相似性搜索改进算法

肖晶黄国兴赵若韵黄豫蕾

计算机科学. 2003, 30 (9): 97-99.

摘要 ( 80 )

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This paper introduces a new method for finding all subsequences similar to a given time series sequence.The method takes into account noise ,offset translation and amplitude scaling. Based on a piecewise linear representa-tion, the speed is exceptionally

局部子立方体连通的超立方体网络容错路由算法和概率分析研究

肖晓麟王国军陈建二

计算机科学. 2003, 30 (9): 100-102.

摘要 ( 123 )

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In this paper, first we analyze and give opinions of fault tolerant routing and probabilistic analysis. Then,on the basis of locally subcube-connected hypercube networks, we put forward some ideas to develop efficient fault tolerant routing algorithms and

VSAT系统改进隔离型随机N叉树形冲突分解算法研究

李莉彭云帆刘丽梅云利军

计算机科学. 2003, 30 (9): 103-105.

摘要 ( 69 )

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In this paper, a new random N-ary tree collision resolution algorithm of improved isolation type is used to analyze the packet collision resolution in VSAT random multiple access system. The analytic formulae of the mean slot number which is needed by pa

基于网络资源消费者模型的调度策略

杨祥茂谭曦

计算机科学. 2003, 30 (9): 105-106.

摘要 ( 69 )

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With the popularity of Internet, technological advance is less than the demand of network resources. In this paper, first we introduce that consumer models in the today's technique condition, how to make prices in light to the models. Then discuss how to

USN安全研究与设计

韩德志耿红琴谢长生胡玉平

计算机科学. 2003, 30 (9): 107-110.

摘要 ( 55 )

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With the development of networked storage, the USN converging NAS and SAN appears, USN has many virtues: high performance, low lost and so on, but its security becomes more complex. Considering the situation,with making a deeply research on the performanc

基于Internet传输的视频压缩编码技术现状与发展

陈蜀宇杨茂斌

计算机科学. 2003, 30 (9): 111-116.

摘要 ( 63 )

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This paper provides an overview of the video compression coding techniques based on streaming video over the Internet from the viewpoint of video coding architecture especially. And the future research directions are pointed out at last.

基于AccessGrid的视频会议

沈华品吴朝辉

计算机科学. 2003, 30 (9): 116-117.

摘要 ( 83 )

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This paper first describes the Grid concept and its current research status. Access Grid is a complement of computational grid. This paper gives a deep analysis of Access Grid and gives a basic model of it. After describing the Access Grid Node's software

基于Internet的视频代理缓存服务器设计的若干关键问题

杨书慧顾铁成陈道蓄

计算机科学. 2003, 30 (9): 118-123.

摘要 ( 64 )

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With the boom of the network technology, all kinds of services based on the Internet come into being. A-mong them, the most promising one is the video service. All of this kind of service has been paid much attention,such as videoconference and video-on-

基于RM—ODP模型的G—WebService的设计

李琦夏晖

计算机科学. 2003, 30 (9): 124-126.

摘要 ( 91 )

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Web Service,as a new standard framework for distributed computing,is to solve the existing problem of cross-platform communication and collaboration between distributed applications. Evolving from the Web Service ar-chitecture ,G-WebService framework, wh

工作流过程建模方法及模型的形式化验证

杨东王英林张申生傅谦

计算机科学. 2003, 30 (9): 127-131.

摘要 ( 60 )

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Work/low technology is widely used in business process modeling, software process modeling as well as en-terprise information integration. At present, there exist a variety of workflow modeling approaches, which differ in the easiness of modeling, express

基于多尺度动态模型的自适应跟踪算法

李涛王宝树乔向东

计算机科学. 2003, 30 (9): 132-134.

摘要 ( 59 )

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This paper simply introduces multi-scale analysis and target-tracking theory, presents a better solution for Px(t), with theoretical proof of the solution's correctness. Based on multi-scale analytical idea, combing the dynamic system analysis of movemen

ORACLE的存储体系结构及其对象空间分配的研究

杨华千刘勇国杨德刚廖晓峰

计算机科学. 2003, 30 (9): 135-137.

摘要 ( 53 )

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With fast development in information times, the database, as the kernel unit of information storage, has been playing an increasingly role in the field of the modern information technology. In this paper, ORACLE storage architecture is analyed from physi

采用移动代理技术建立数据仓库的研究

钟国祥张为群

计算机科学. 2003, 30 (9): 138-140.

摘要 ( 72 )

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The thesis sets forth for the policy maker a way of achieving the aim of building model data warehouse based on relation model distributed database by using Mobile Agent technology. According to the design principal of data warehouse and the standard tech

利用蓝牙技术组建无线办公网络

康劲徐超侯建辉冯文江

计算机科学. 2003, 30 (9): 141-143.

摘要 ( 65 )

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Bluetooth becomes the focus in the world as a new technology on wireless connection in a short distance.The paper builds the application model which is applied to the wireless office network in the modern corporation. We invent a new Bluetooth routing sch

网格监控系统研究

黄达明李国东张德富

计算机科学. 2003, 30 (9): 144-147.

摘要 ( 60 )

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The monitoring system is very critical for complex and large high-performance distributed system such as a Grid. With the help of a monitoring system the users and developers of a Grid can perform tasks such as fault-detec-tion and diagnosis, performance

EH—GRBAC：遍在计算环境中基于知识的访问控制原型

张向刚张云勇刘锦德

计算机科学. 2003, 30 (9): 148-151.

摘要 ( 61 )

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In pervasive computing environment, users can access to various information, resources and services at anytime and anywhere, so access control has become an exigent security problem. In the traditional access control modes, the decisions o[ access control

一个软件服务协同中的信任管理框架设计

徐锋曹春郑玮冯扬悦吕建

计算机科学. 2003, 30 (9): 152-154.

摘要 ( 61 )

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Internet-based Web application systems are gradually built as software service coordination systems. In an open, dynamic and collaborative application environment, traditional methods assumed with closeness, centralization and independence are not able to

TFSP：一种分布式实时系统的形式化描述工具

叶俊民王振宇陈利赵恒

计算机科学. 2003, 30 (9): 155-157.

摘要 ( 62 )

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Distributed Real Time Systems (DRTS) have very broad applications in space navigation, nuclear reaction,military affairs and industry department where the security and reliability requirement of the DRTS is very high.Thus, how to develop correct DRTS appl

可扩展并行计算机系统结构和发展现状

曾庆华陈天麒

计算机科学. 2003, 30 (9): 158-161.

摘要 ( 64 )

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Scalable parallel computer is becoming a trend in developing parallel computers. Scalable computers are classified into three system models: the Symmetric Multiprocessor, the Massively Parallel Processor and the Cluster of Workstation. In this paper, the

频率、二维到达角和极化联合估计的并行算法研究

曾庆华陈天麒

计算机科学. 2003, 30 (9): 162-164.

摘要 ( 57 )

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In this paper, the serial algorithm analysis and parallel implementation of multi-parameters joint estimation are reported. The numerical results under the PVM computer network environment are presented. Compared with the serial results, the advantages of

可信计算及其关键技术研究

王志刚李师贤

计算机科学. 2003, 30 (9): 165-168.

摘要 ( 70 )

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The dependability is the latest and highest techno-target used to evaluate the performance quality of a dis-tributed computing system in open network environment, it includes traditional reliability, availability, robustness,survivability, security, data

异常处理——一种提高软件健壮性的方法

姜淑娟徐宝文

计算机科学. 2003, 30 (9): 169-172.

摘要 ( 49 )

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Exception handling is a technique that tests and handles exception events. Unlike the traditional methods that usually deal with exceptions at later design and implementation phases and easily result in many problems, we emphasis that sufficient attention

Java并发系统的ACP模型

刘园徐宝文

计算机科学. 2003, 30 (9): 173-174.

摘要 ( 83 )

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Feasibility and efficiency of analyzing concurrent programs mostly rely on the programs′ representations.This paper proposes a model of Java concurrent system by using ACP,so that Java concurrent system can be trans-formed to process algebra expressions

基于Linux系统的分权设计与实现

林志强金雷茅兵谢立

计算机科学. 2003, 30 (9): 175-178.

摘要 ( 73 )

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The secure operating system is the foundation of secure enhanced information systems. As an open source software. Linux has robust functions and good compatibilities with Unix. This paper analyzes the hidden troubles and faults in secure aspect of it. and

形式化与可视化结合的FDOOM软件开发方法

周彦晖张为群

计算机科学. 2003, 30 (9): 179-182.

摘要 ( 55 )

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It is an important issue in Software Engineering that combines the formal development method with the vi-sual development method. This study is based on the transform method and rules between the UML model and the RAISE model.We developes a new software d

论对象程序设计同构化教学教改与教育创新

周启海

计算机科学. 2003, 30 (9): 183-184.

摘要 ( 58 )

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In this paper, the new viewpoint about the objectized (i. e. object-oriented) program design in all kinds of computer languages, hich should and could be isomorphized, is advanced, and the new direction of isomorphized teaching reform and blazing new trai