计算机科学

时培植李三立都志辉黄震春

计算机科学. 2003, 30 (6): 1-5.

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Performance is one of the key problems in either high performance computing or GRID application.Performance data must be collected and analyzed for co-allocating resource efficiently,obtaining high performance and fault toleration.Furthermore,with the dev

网格计算环境中可视化技术的研究

李金宝李建中商超于玲

计算机科学. 2003, 30 (6): 6-7.

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Visualization research is one of the critical techniques in the Grid computing.In this paper a visual method is used to implement a distributed parallel computing program which makes the node point''s status of the parallel system visible during the progr

Peer To Peer计算技术的应用领域与典型问题讨论

王庆波代亚非田敬

计算机科学. 2003, 30 (6): 8-9.

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With the rapid development of computer networks there are more and more resources involoved in it,such as CPU cycles,PC''s disk space and network bandwidth.Many people believe that peer to peer computing can harness these disruptive powers.In this paper w

基于JXTA的Super—peer搜索方法设计

李歆海李善平

计算机科学. 2003, 30 (6): 10-12.

摘要 ( 72 )

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Efficient resource search method has significant impact on the scalability and availability of P2P network.Generally there are two search methods,pure Peer-to-Peer method and central index method.Recently,some search methods with super-peer concept are ap

分布式协作模型及应用研究

张全海施鹏飞

计算机科学. 2003, 30 (6): 13-18.

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With the development of the Web technology,the application environment has acquired many new characters such as dynamic, openness,distribution and information uncertainty.The processing mode of application systems is more complicated than ever.For example

新的进化计算算法——粒子群优化算法

李炳宇萧蕴诗

计算机科学. 2003, 30 (6): 19-22.

摘要 ( 81 )

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Particle Swarm Optimization (PSO),rooting from simulation of swarm of bird, is a new branch of Evolution Algorithms based on Swarm Intelligence.Concept of PSO,which can be described with only several lines of codes,is more easily understood and realized t

基于进程代数的安全协议分析与验证

李梦君李舟军陈火旺

计算机科学. 2003, 30 (6): 23-26.

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Process algebra is the theories for concurrency.Now the methods based on process algebra for the analysis and verification of security protocols becomes one of the important methods for the study of the security protocols.In the paper,we outline these met

主动安全技术发展综述

滕猛邹鹏王怀民

计算机科学. 2003, 30 (6): 27-30.

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Proactive security provides a method for maintaining the overall security of a system,even when individual components are repeatedly broken into and controlled by an attacker.Proactive security is a non-trivial extension of (t+1,n)-threshold cryptosystems

MPEG—7和MPEG—7实验模型参考软件

单锦来陈博杨献春许满武

计算机科学. 2003, 30 (6): 31-37.

摘要 ( 76 )

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MPEG-7 is an ISO/IEC standard developed by MPEG (Moving Picture Experts Group),MPEG-7,formally named “Multimedia Content Description Interface”,aims to create a standard for describing the multimedia content data.In this paper,firstly we introduce the con

基于移动IP的移动组播技术研究

张斌张汝云邬江兴

计算机科学. 2003, 30 (6): 38-40.

摘要 ( 105 )

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This paper discusses the method of mobile multicast based on mobile IP protocol proposed by IETF.At first,the paper analyzes the methods of Remote subscription and Home subscription, points out the latent problem in mobile ip protocol,and gives the method

面向Internet的流媒体组播技术

叶保留吴敏强顾铁成陈道蓄

计算机科学. 2003, 30 (6): 41-45.

摘要 ( 74 )

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The multicast of Streaming Media over the Internet is an important component of many current and future Internet applications.The heterogeneity and lacking of QoS guarantee make the application of this technique a challenge.In this paper,we analyze the di

基于IP的SAN互联技术的研究

傅湘林韩德志谢长生

计算机科学. 2003, 30 (6): 46-49.

摘要 ( 134 )

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Both the requirement of the application and the development of the technology invoke the research of the new networking technology in network storage,currently the IP-based SAN has become the new focus.The main networking technology used in the IP-based S

基于广义细胞自动机的网络带宽优化

柴震川帅典勋刘燕

计算机科学. 2003, 30 (6): 50-54.

摘要 ( 98 )

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Nowadays,bandwidth allocation schemes in a TCP/IP or ATM network are congestion avoidance oriented.Few scheme has taken global optimization into account,for global optimization problem can not be easily solved by conventional mathematical method due to th

禁忌搜索算法用于解决网络路由问题

王东平李绍荣

计算机科学. 2003, 30 (6): 55-57.

摘要 ( 81 )

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Routing problem is a very import problem in the network design.However,with the increasing of the number of vertices,the convergence speed of the conventional method(such as the Dijkstra algorithm)becomes slow.In some services,the accurate shortest path i

可伸缩TAGS

闵帆张君雁杨国纬

计算机科学. 2003, 30 (6): 57-59.

摘要 ( 76 )

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In a distributed Web server system where tasks are unpreemptible,the most important issue for improving quality of service(QoS)is how to realize fairness and reduce average slow down.In this paper we present an algorithm named Scalable TAGS by integrating

基于QOS的网络计费管理

任淑婷吴志美顾国昌

计算机科学. 2003, 30 (6): 60-62.

摘要 ( 72 )

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In this paper we present a network accounting method based on QoS which is compared with the methods based on the length of time or the size of the stream.We give out its strategy and its main data structure when used in a wide bandwidth connection system

HFC宽带接入网上行带宽分配策略的改进

宋军甘育裕吴资玉

计算机科学. 2003, 30 (6): 63-65.

摘要 ( 75 )

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The request/transmit based upstream bandwidth resource allocation policy of DOCSIS introduces a trouble to the quality of the data service provided in the HFC networks.In this paper,the mechanism of the upstream data transmitting and the process of data s

基于轻负载代理的协同分布式入侵检测系统

张琨刘凤玉

计算机科学. 2003, 30 (6): 66-68.

摘要 ( 72 )

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The LAFCDIDS(Lightweight Agent for Collaborative Distribution Intrusion Detection System)presented in this paper is a distributed intrusion detection system with the ability of collaborative detection in real time.The hierarchy architecture of agents and

MADIDS：一种基于移动代理的新型分布式入侵检测系统

罗光春卢显良李炯张骏

计算机科学. 2003, 30 (6): 69-71.

摘要 ( 61 )

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When traditional Intrusion Detection System(IDS)is used to detect and analyze the great flow data transfer in high-speed network,it usually causes the computation bottleneck.This paper presents a new Mobile Agent Distributed IDS(MADIDS) system based on th

对两个双方密码协议运行模式的攻击及改进

姬东耀冯登国

计算机科学. 2003, 30 (6): 72-73.

摘要 ( 69 )

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In this paper,the running modes of the two-party cryptographic protocols are used to analyze the two authentication and key agreenment protocols,and attack on the protocols is discovered. Finally,two improved protocols are given.

分布式网络存储管理系统的研究与实现

张凌蒋东兴刘启新周霖沈培华

计算机科学. 2003, 30 (6): 74-77.

摘要 ( 73 )

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The distributed network storage management system will effectively organize the users'' storage spaces which are distributed and heterogeneous to provide the users with a piece of integrated and uniform virtual storage space.This paper summarily introduce

Web信息抽取

李晶陈恩红

计算机科学. 2003, 30 (6): 78-81.

摘要 ( 55 )

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With the tremendous amount of information available on the Web,the ability to quickly obtain information has become a crucial problem.It is not enough for us to acquire information only with Web information retrieval technology.Therefore more and more peo

网站结构和内容对Web使用挖掘的影响

刘丽珍宋瀚涛陆玉昌

计算机科学. 2003, 30 (6): 82-83.

摘要 ( 79 )

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The Paper emphasizes relativity between Web usage mining and the application of Web site structure and content.It has shown that the amount of effort involved in processing and quantifying the structure and content of a Web site is well worth in performin

基于群体智能的网络信息自组织方式

刘燕帅典勋柴震川

计算机科学. 2003, 30 (6): 84-87.

摘要 ( 57 )

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We design and implement a novel information self-organization model based on Generalized Cellular Automata (GCA),to accomplish network information content self-organization employing the idea of swarm intelli-gence.Through constructing correspondent cell

时空数据库索引机制研究

黄曙荣秦小麟

计算机科学. 2003, 30 (6): 88-92.

摘要 ( 69 )

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Spatio-temporal database manages the large amount of spatial objects that change over time.It is necessary to query the spatio-temporal objects of the past and the current and to anticipate the future of spatio-temporal objects.It is important to design a

空间数据库磁盘管理器的研究与设计

范建伟汪林林

计算机科学. 2003, 30 (6): 93-95.

摘要 ( 86 )

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The disk manager of spatial database provides uniform storage and management for spatial data and attribute data in GIS applications.To investigate it will have effect on creating storage manager of spatial database and SDBMS with lore''s property right f

属性维概念及其操作的研究

袁霖李战怀

计算机科学. 2003, 30 (6): 96-100.

摘要 ( 59 )

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Dimension member attribute is used to describe the property of dimension members. It is not fully understood and well defined in OLAP research area.This paper focuses on a special kind of dimension member attributes,which can be used as dimensions by them

基于Web的信息智能获取方法

彭岩涂序彦

计算机科学. 2003, 30 (6): 101-102.

摘要 ( 71 )

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The increasing stream of Web information available makes it ever more desirable of network users to retrieval interesting information efficiently.Obviously,AI can be made a good use in the information retrieval area.In this paper,the Intelligent Search En

一个新的通信模式——虚拟现实通信（VRT）

韩方景顾建郑林华张尔扬

计算机科学. 2003, 30 (6): 103-104.

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This paper introduces the concept of virtual reality telecommunication(VRT)in a broad sense,and presents the structure and reference model of VRT.At last,a realization method of VRT is discussed.

多Agent信念修正研究

孙召春高阳贾松茂陈世福

计算机科学. 2003, 30 (6): 105-107.

摘要 ( 57 )

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Belief Revision is a theory that studies how to integrate new information into original belief set.Classical BR theory uses AGM frame,but it only resolves problems in single agent BR system.Multi-agent BR faces problems such as the collision of many infor

基于神经元网络的言语的计算结构研究初探

危辉

计算机科学. 2003, 30 (6): 108-109.

摘要 ( 47 )

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Language acquisition,understanding and production are three core problems in the field of cognitive linguistics and computational linguistics.After the investigation of information processing mechanism from the physiological psychology view,we get that th

一种新的支持向量机主动学习策略及其在文本分类中的应用

刘宏屠轶清黄上腾

计算机科学. 2003, 30 (6): 110-112.

摘要 ( 65 )

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There are two well-known characteristics about text classification.One is that the dimension of the sample space is very high,while the number of examples available usually is very small.The other is that the example vectors are sparse.Meanwhile,we find e

支持向量机及其在模式识别中的应用

刘向东朱美琳陈兆乾陈世福

计算机科学. 2003, 30 (6): 113-117.

摘要 ( 67 )

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Statistical learning theory(SLT)and support vector machine(SVM) are effective to solve problems of machine learning under the condition of finite samples.It is known that the performance of support vector machine is often better than that of some neural n

机器学习在RoboCup中的应用研究

杨佩陈兆乾陈世福

计算机科学. 2003, 30 (6): 118-121.

摘要 ( 65 )

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RoboCup is a particularly good domain for studying multi-agent systems.A wide variety of MAS issues can be studied in robotic soccer,in which the theory,algorithm and architecture of agent system can be evaluated.Because of the inherent complexity of MAS,

一种基于规则的属性约简算法

杨明杨萍孙志挥

计算机科学. 2003, 30 (6): 122-125.

摘要 ( 59 )

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Reduction of attributes is one of important topics in the research on rough set theory.Wong S K M and Ziarko W have proved that finding the minimal attribute reduction of decision table is a NP-hard problem.Algorithm A (the improved algorithm to Jelonek)

对规则取舍问题的研究

周颖

计算机科学. 2003, 30 (6): 126-128.

摘要 ( 54 )

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This paper establishes a theory architecture to accept or reject or reserve synchronously a pair of rules look like A→B and B→A by analyzing correlation and sufficiency gene, and presents its algorithms.Praral reduces domain specialist workload,realiazes

Web使用挖掘系统研制中的主要问题和应对策略

张锋常会友

计算机科学. 2003, 30 (6): 129-132.

摘要 ( 56 )

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With the rapid development of WWW,Web Usage Mining,as well as Web Mining,has become a hot direction in academic and industrial circles.It is generally believed that there are three tasks,preprocessing,knowledge discovery and pattern analysis,in Web Usage

基于广义概念格的广义粗近似空间中规则的发现与提取

张倩生周作领许绍元贾保果罗俊

计算机科学. 2003, 30 (6): 133-135.

摘要 ( 61 )

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This paper proposes a new method of constructing generalized concept lattice and producing rules from it in the generalized rough approximate space based on generalized similar relation which is more extensive than equivalent relation.Finally,a simple alg

一种新的中心对称聚类算法

林嘉宜许剑峰彭宏

计算机科学. 2003, 30 (6): 136-138.

摘要 ( 56 )

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Data clustering is an important reserch field in data mining.The key of the clustering algorithm is the distance measure.In this paper,we put forward a new distance measure based on central symmetry,Then we apply it to data clustering.The experimental stu

分层自组织耦合振荡聚类方法

闫德勤迟忠先

计算机科学. 2003, 30 (6): 139-140.

摘要 ( 63 )

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A self-organization of pulse-coupled oscillators for clustering method is studied and the defectiveness of the method is analyzed.With modification to the method a new clustering method is presented.Experiments indicate the modified method is effective.

图像拼接技术

王俊杰刘家茂胡运发于玉

计算机科学. 2003, 30 (6): 141-144.

摘要 ( 77 )

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Image mosaics have been an active area of research in the fields of computer vision,image processing and computer graphics in recent years.The automatic fast construction of unlimited field of view,high-resolution image mosaics is a main research task of

基于内容的空域图像水印算法研究

王向阳杨红颖

计算机科学. 2003, 30 (6): 145-146.

摘要 ( 58 )

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In this paper,a novel space domain watermarking scheme based on image content is presented.The proposed method can use the human visual system(HVS) to adaptively embed a watermark in an image by decomposing the host image,selecting streak blocks,modifying

基于颜色和特征匹配的视频图像人脸检测实现技术

牛德姣詹永照宋顺林

计算机科学. 2003, 30 (6): 147-150.

摘要 ( 49 )

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A face detection method using statistical skin-color model and facial feature matching is presented in this paper.According to skin-color distribution in YUV color space,we develope a statistical skin-color model through interactive sample training and le

一种自适应数字水印嵌入方法

张伟彭军廖晓峰吴中福

计算机科学. 2003, 30 (6): 151-154.

摘要 ( 56 )

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As an effective method of ownership assertion for digital media,digital watermarking has been targeted especially in recent years.In this paper,an adaptive digital watermarking embedding approach is presented.By applying fuzzy c-means clustering algorithm

从UML顺序图生成状态图的一个方法

袁海李宣东郑国梁

计算机科学. 2003, 30 (6): 155-158.

摘要 ( 61 )

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UML (Unified Modeling Language) is a visual modeling language used for specifying,visualizing,constructing,and documenting the artifacts of software systems by various diagrams.It has been widely accepted as a standard modeling language in both academic a

基于下推自动机的仿真模型形式化描述

方敏王宝树邱素蓉

计算机科学. 2003, 30 (6): 159-161.

摘要 ( 66 )

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A particular discussion on the application of Pushdown Automator(PA)in the description of the simulation entity is made in this paper.It first introduces the mathematical model of PA,then it analyzes the conformation method of the simulation nesting entit

基于Bayes网的软件失效预测模型

白成刚俞蒙槐胡上序蔡开元

计算机科学. 2003, 30 (6): 162-164.

摘要 ( 68 )

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Owing to the complexity of software development,the software reliability model should not only have the capability of dealing with multiple complex factors,but also provide the furtction of flexibility in construction.So far,no software reliability model

基于布尔方程的系统级故障诊断表示及应用

刘兵张大方宣恒农

计算机科学. 2003, 30 (6): 165-167.

摘要 ( 58 )

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With the popularization of multiprocessor systems and network applications,the study ot ctepenaaomty of systems has become an important research area of computer science.A “Boolean equation diagnosis” method is firstly presented for test model of system-l

RETE网络中的优化编译模式及其PVS形式验证

刘晓建陈平

计算机科学. 2003, 30 (6): 168-171.

摘要 ( 81 )

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In the compilation of rule program to the intermediate code-RETE network,optimizing compilation is an important compiler schema,and is a necessary step in the compiler verification.In this paper,we discuss optimization schemas in rule program compilation,

面向本体的MIS领域分析方法

房秀蓉李师贤

计算机科学. 2003, 30 (6): 172-174.

摘要 ( 73 )

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Domain engineering is a reuse technology of large-grain size,it focuses the analysis,design and implementa-tion within a specific domain.This paper focuses the first phase of domain engineering,discusses a new approach of domain analysis-ontology-oriented

构件类的语法描述及构件关系的语义描述

顾明

计算机科学. 2003, 30 (6): 175-178.

摘要 ( 60 )

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In this paper,sameness and difference of component class and component,class and object are compared.Syntax of component class is described using BNF paradigm.After some definitions are given,semantics of component inherit and reference relationship are d

数字图书馆中基于Java的用户界面组件库研究与开发

来强邢春晓

计算机科学. 2003, 30 (6): 179-182.

摘要 ( 65 )

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It is one of the most important task in digital library to develop a universal and customized user interface for search and retrieval in heterogeneous,distributed environment.In this paper,we briefly introduce working principles and workflow of SiteSearch

基于多Agent与CORBA的远程教育通信平台的研究与构建

马希荣孙华志

计算机科学. 2003, 30 (6): 183-184.

摘要 ( 61 )

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The distance learning based on distributing teaching involves technology question of coordination mutually between many roles.Agent is an entity which can act on his own and conforms himself with environment.Agent''s ideology is fit for the inherent requi