计算机科学

刘鹏何川李三立都志辉黄震春时培植

计算机科学. 2002, 29 (2): 1-4.

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A new platform,which connects distributed High Performance Computing(HPC) resources in the country and provides a user-friendly Web interface to ghe general researchers in different fields,is presented in the paper.Users can put forward large HPC tasks th

协调技术综述

夏顺东尤晋元

计算机科学. 2002, 29 (2): 5-8.

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Coordination technology is an emerging research area in computer science.This paper gives the definition and taxonomy of coordination technology.Several state-of-the art corrdination models and languages are introduced.At last,future research issues are p

基于机群系统的通信协议性能比较、分析与研究

魏英霞舒继武王鼎兴郑纬民

计算机科学. 2002, 29 (2): 9-13.

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As we all know,communication technology is one of the key factors improving the performance of Cluster.It influences parallel speedup,parallel compputiong efficiency,scalability and system''''s application domain greatly.To provide low latency and high ba

环形互连并行系统上的任务分配

李国东杨海荣王东奎张德富

计算机科学. 2002, 29 (2): 14-16.

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This paper is about distributed processing of a divisible task in a ring of communicating processors,all works are based on ring topology.Out distribution scheme aims to guarantee minimal finish time of the whole task,which is divided into parts (subtasks

移动自适应更新机制

潘育飞顾尔丹吴震华陈纯

计算机科学. 2002, 29 (2): 17-19.

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With the rapid development of mobile equipment and wireless communication,the Mobile Database Management becomes more popular.The main features of wireless communication such as low bandwidth and instability make the efficiency a critical problem in desig

移动数据管理的研究与发展

王意洁卢锡城

计算机科学. 2002, 29 (2): 20-22.

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The features of mobile computing include low bandwidth,frequent disconnections,predictable disconnections,high bandwidth variability,low security,fast changing locations,limited resources,limited battery power,expensive,etc.,by which the higher demands of

并行广播技术与应用前景

马卫东李幼平袁宏春

计算机科学. 2002, 29 (2): 23-24.

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The Parallel Data Broadcasting Technology(PDBT) improves the Custom Data Broadcasting which is becoming a kind of culture media that is published and released rapidly now.This paperstudies the system design and the application of PDBT and then discusses i

XML相关标准综述

杨建武陈晓鸥

计算机科学. 2002, 29 (2): 25-28.

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With the rapid development of Internet.XML has been accpted widely and has become a pop topic of study and application.XML specification is sample,but its theory is profound,its system is complicated and lost of specifications are correlative with XML.An

基于XML的B2B电子商务构架

范国闯刘庆文李京钟华

计算机科学. 2002, 29 (2): 29-33.

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The B2B (Business-to-Business)e-commerce framework solves the key problem-interoperability between enterprise during e-commerce transactions.Firstly,this paper presents several key factors of B2B e-commerce framework by analyzing the role of frameworks.Mo

计算机网络中界壳理论的研究

蒋艳凰蒋贵凰杨学军

计算机科学. 2002, 29 (2): 34-36.

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JieKe Theory has been presented recently to solve the JieKe phenomenon which exists commonly in the physical word.As the most of other things,computer network has its JieKe phenomenon too.In this paper,we introduce the concept of JieKe first;then we descr

支持多媒体传输的QoS自适应控制理论及评价模型

陈晓梅卢锡城王怀民

计算机科学. 2002, 29 (2): 37-39.

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QoS adaptive control is one of the critcal technologies supporting the quality of service of multimedia transport.This paper puts forward an evaluation model of QoS adaptive control to support the multimedia transport.In holds out a QoS adaptive control m

基于代理服务器的协作浏览

王实高文杜建平李锦涛

计算机科学. 2002, 29 (2): 40-42.

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When a user accesses Internet through WWW Proxy Server,he has some kinds of interest.The Proxy Server will record his basic access information in Log.Through minging the Log,we can get the interest and evaluation of the user to the Web site visited by him

基于OIL和RDFS的语义化Web逻辑扩展

姚绍文宗勇刘爱莲周明天

计算机科学. 2002, 29 (2): 43-47.

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RDF（S） is the standard for metadata of Web that aims to turn the current Web into the foundation of a machine-understandable knowledge system.By employing the folw-blown technique of KE,the Web-NG is targeted to provide the semantic inter-operability for

SecureGuard—Solaris环境下VPN的设计与实现

李方敏叶澄清蒋晓宁

计算机科学. 2002, 29 (2): 48-50.

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VPN can be implemnted based on hardware or software,but these products are very expensive produced by some famous foreign country.Sun workstations are the main platform in China.So,developing security software based on Solaris is profound.First,according

可靠组播拥塞控制最新研究进展

任立勇卢显良

计算机科学. 2002, 29 (2): 51-54.

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Congestion control,which is one of the important research points of reliable multicast protocol,has become a active field in the computer network and communication areas.In the paper the principal problems of congestion control for reliable multicast are

高速网中一种改进的选择报文丢弃策略

赵尔敦邹玲石冰心

计算机科学. 2002, 29 (2): 55-56.

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In this paper,an improved selective discarding policy called threshold-based partial message discarding (TPMD) policy is presented,which can adapt the varied load.The TPMD policy can change dynamically with the occupancy of the buffer between the PMD poli

无线ATM通信网中的移动管理控制

鲁瑞华雷开友

计算机科学. 2002, 29 (2): 57-59.

摘要 ( 106 )

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Mobility Management Control in WATM traffic networks is a very important problem that needs intensive study.In this paper the authors intend to introduce several parts of the problem,chiefly,a BRAN reference model,WATM network architecture,WATM network fu

基于SAN的快速灾难恢复技术

陈亚滨戴冠中蔡院东

计算机科学. 2002, 29 (2): 60-61.

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Fast balefulness restore technology is an importance part of network security architecture.It can reduces system loss and fast restores system functions while the system is attacked or occurs fault.In this paper,a SAN (Storage Area Network)-based Balefuln

增强型安全数据库系统中存储过程的安全性讨论

陆晓华吕磊黄皓谢俊元

计算机科学. 2002, 29 (2): 62-65.

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Today the security subsystem of DBMS without kernel changed is of special importance.But the stored procedure,an important part of DBMS,may have some security holes.A procedure may be constructed by a group of SQL statements of different access types,each

一种动态角色委托代理授权模型

王小明赵宗涛马德民

计算机科学. 2002, 29 (2): 66-68.

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RBAC(Role-Based Access Control)has been the most promising access control policy that is generally acknowledged currently,and becomes one of hot research topics in the area of inrormation.The role grant management in traditional RBAC is only done by syste

隐式授权动态推导模型研究

张召黄国兴鲍钰

计算机科学. 2002, 29 (2): 69-71.

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With the concepts of the authorization model of OODM,this paper proposes the deducing implicit authorizationg model in relational database management system(RDBMS).This model helps the user gain implicit authorization by deducing the explicit autohorizati

构造类型论与计算机程序设计

蒋慧林东孙泉谢希仁

计算机科学. 2002, 29 (2): 72-77.

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Recent years,in the area of computer programming language theories,automated deduction,and more generalized area of logic and computing,a lot of systems based on constructive type theory are used widely to design type system for computer programming langu

新一代开放系统核心架构研究——公共Agent请求代理体系结构CARBA

张云勇胡健刘锦德

计算机科学. 2002, 29 (2): 78-80.

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After the persistent practce in the 1990''''s, using "Open System"idea to integrate large scale computer systems has been the consentient fact.In this paper,the new mechanism based on mobile Agent is discussed and the core architecture called common Agent

开放实现与计算反射技术综述

唐亚哲李增智张鹏

计算机科学. 2002, 29 (2): 81-83.

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Open implementation and computational reflection have emerged as flexible programming techniques and structured ways of achieving program adaptbilility and reusibility.In this paper,we introduce the basic concepts about them,present a survey of related wo

消息队列技术研究：综述与一个实例

周世杰刘锦德秦志光

计算机科学. 2002, 29 (2): 84-86.

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The features and applications of message queuing technology are analyzed.After discussing the communication mode of message queuing,the differences among message queuing,remote procedure call and distributed transaction processing are clarified.Then,sever

基于IS09001和CMM的软件需求管理的研究

雷辉李怀璋王青

计算机科学. 2002, 29 (2): 87-90.

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Regarding ISO9001 and CMM Requirements Management as the background,this article analyses the demands of Requirements Management with the techology and methods of Software Requirements Development;presents the Requirements Management practice framework,wh

适应性软件体系结构研究

李刚金茂忠

计算机科学. 2002, 29 (2): 90-93.

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In this paper,the necessity of researching on adaptive software architecture is expounded from the angle of impacts of Internet on software;the status quo of software architecture and software adaptability is summarized;the open problems and our viewpoint

软件质量管理中的统计过程控制

赖旭芳王青

计算机科学. 2002, 29 (2): 94-97.

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SPC(Statistical Process Control) is a process control method which can help the organizations to meausure and control the quality of the processes,and then to achieve the goal of improving the process stability.Thereby,the quality of products and service

免疫思想在计算机安全系统中的应用

闫巧谢维信

计算机科学. 2002, 29 (2): 98-99.

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This paper overviews the development of immune principle applied in computer virus detection,intrusion detection based host and intrustion detection based local area broadcast network.An inspiration that the features of natural immune system can be used t

智能规划及其应用的研究

丁德路姜云飞

计算机科学. 2002, 29 (2): 100-103.

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Now Intellingent Planning is a very hot branch in AI.Because of its wide application researchers pay much attention to palnning technology.The paper surverys the origin and development of intelligent planning and its applications,briefly states its typica

基于时态逻辑的虚拟企业活动规划

袁成祥高济林东豪

计算机科学. 2002, 29 (2): 104-107.

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As a method of collaboration between general organizations,it is of great importance for the virtual organization to plan it''''s activities.This paper first describes the virtual organization activities using temporal logical,then analyses the safety and

集成XML的KQML的研究与实现

王丹王小平王国仁于戈

计算机科学. 2002, 29 (2): 108-110.

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XML is a network language,which can define the exchange of structured and unstructured information.KQML is one of common communication languages among agents.But KQML doesn''''t enforce any formalized methods about how to describe the content of message.S

基于内容的视频／多媒体数据库检索技术

陈慧琼陈慧君刘宗田

计算机科学. 2002, 29 (2): 111-114.

摘要 ( 61 )

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While large video/multimedia databases became increasing common,traditional retrieval methods are no longer adequate for video data.Since video information is temporal,spatial,unstructured and massive,the new contentbased video retrieval,which can retrive

关键词识别的基本技术和研究进展

陈凯江欧嘉致黄萱菁吴立德

计算机科学. 2002, 29 (2): 115-119.

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Keyword Spotting (KWS) or Keyword Recognition is to recognize a set of given keywords in continuous,spontaneous speech.It is a very active branch of Speech Recognition.It differs from Continuous Speech Recognition (CSR) in terms of research focus,implemen

基于PDA的知识库与数据库集成和通用推理算法

欧阳建权钱跃良李锦涛刘任任

计算机科学. 2002, 29 (2): 120-121.

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This paper studies the correspondence relation between the knowledge and the database to combine the synthetic knowledge representation^[1] and the relation database;defines the fields in the database as the feature in the knowledge base such as rule,weig

数据缺失条件下的贝叶斯推断方法

虞健飞张恒喜朱家元

计算机科学. 2002, 29 (2): 122-123.

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Recently Bayesian network(BN) becomus a noticeable research direction in Data Mining.In this paper we introduce missing data mechanisms firstly,and then some methods to do Baysesian inference with missing data based on these missing data mechanisms.All of

时态数据挖掘研究进展

张保稳何华灿

计算机科学. 2002, 29 (2): 124-126.

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Temporal data mining is one of the important braches of data mining.In this paper with the present documents first we systematically classify the present research on temporal data mining.Next,we give our generalizations and analyses to the main braches.Fi

基于小波变换的例外挖掘

周丽华王丽珍

计算机科学. 2002, 29 (2): 127-129.

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In real project,the useful signal usually shows as low-frequency signal,but noise(outlier)shows as highfrequency signal.Wavlet transform can maps 1-D signal into a 2-D time-scale plane,and the localisation of signal is described in different scales,so it

唇读识别中的基本口型分类

柴秀娟姚鸿勋高文王瑞

计算机科学. 2002, 29 (2): 130-133.

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This paper has put forward a concept of mouth-shape basic unit,and described an approcah of obtaining basic units by mouth-shape images classifying and clustering.The basic units are the gist of breakaway different states during continuous speech recognit

静态灰度图像中的人脸检测方法综述

唐伟陈兆乾吴建鑫周志华

计算机科学. 2002, 29 (2): 134-137.

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In recent twenty years,the technique of face detection and face recognition,as one of the important research area of computer vision and image understanding,attracts more and more attenion.In general,face detection in graylevel still images is more diffic

一种基于边缘特征的聚类学习新方法

刘道海方毅黄樟灿

计算机科学. 2002, 29 (2): 138-139.

摘要 ( 71 )

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According to mankind''''s actual classing procedure for substance,this paper puts forward a new Clustering Learning based on Edge Character(CLEC) approach that is different from some traditional methods.This approach does not depend on the number of class

二进制可辨矩阵的变换及高效属性约简算法的构造

支天云苗夺谦

计算机科学. 2002, 29 (2): 140-142.

摘要 ( 73 )

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This paper dose a lot of mathematics transformation to Binary Disernibility Matrix,it is called BDM too.Though these transformations,we may both decrease a lot of memory space of BDM and contribute to make high efficiency attributes reduction algorithms.B

广义Mandelbrot和Julia组合集

王兴元

计算机科学. 2002, 29 (2): 143-145.

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Based on the switched mapping advanced by autbor,the method constructing the general Mandelbort and Julis combination sets was elaborated,and a series of the general Mandelort and Julis combination sets were constructed.The trajectories of a starting poin