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A Comparative Study on the Post-Buckling Behavior of Reinforced Thermoplastic Pipes(RTPs)Under External Pressure Considering Progressive Failure 被引量:1
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作者 DING Xin-dong WANG Shu-qing +1 位作者 LIU Wen-cheng YE Xiao-han 《China Ocean Engineering》 SCIE EI CSCD 2024年第2期233-246,共14页
The collapse pressure is a key parameter when RTPs are applied in harsh deep-water environments.To investigate the collapse of RTPs,numerical simulations and hydrostatic pressure tests are conducted.For the numerical ... The collapse pressure is a key parameter when RTPs are applied in harsh deep-water environments.To investigate the collapse of RTPs,numerical simulations and hydrostatic pressure tests are conducted.For the numerical simulations,the eigenvalue analysis and Riks analysis are combined,in which the Hashin failure criterion and fracture energy stiffness degradation model are used to simulate the progressive failure of composites,and the“infinite”boundary conditions are applied to eliminate the boundary effects.As for the hydrostatic pressure tests,RTP specimens were placed in a hydrostatic chamber after filled with water.It has been observed that the cross-section of the middle part collapses when it reaches the maximum pressure.The collapse pressure obtained from the numerical simulations agrees well with that in the experiment.Meanwhile,the applicability of NASA SP-8007 formula on the collapse pressure prediction was also discussed.It has a relatively greater difference because of the ignorance of the progressive failure of composites.For the parametric study,it is found that RTPs have much higher first-ply-failure pressure when the winding angles are between 50°and 70°.Besides,the effect of debonding and initial ovality,and the contribution of the liner and coating are also discussed. 展开更多
关键词 reinforced thermoplastic pipes post-buckling behavior progressive failure of composites DEBONDING initial ovality
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Modeling and simulation of solvent behavior and temperature distribution within long stick propellants with large web thickness undergoing drying 被引量:2
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作者 Enfa Fu Qianling Liu +3 位作者 Yu Luan Yao Zhu Weidong He Zhenggang Xiao 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2023年第10期42-55,共14页
Drying is a complicated physical process which involves simultaneous heat and mass transfer in the removal of solvents inside propellants.Inappropriate drying techniques may result in the formation of a hard skin laye... Drying is a complicated physical process which involves simultaneous heat and mass transfer in the removal of solvents inside propellants.Inappropriate drying techniques may result in the formation of a hard skin layer near the surface to block the free access of most solvent through for long stick propellants with large web thickness,which lead to lower drying efficiency and worse drying quality.This study aims to gain a comprehensive understanding of drying process and clarify the mechanism of the blocked layer near the propellant surface.A new three-dimensional coupled heat and mass transfer(3D-CHMT)model was successfully developed under transient conditions.The drying experiment results show that the 3DCHMT model could be applied to describe the drying process well since the relative error of the content of solvent between simulation and experiment values is only 5.5%.The solvent behavior simulation demonstrates that the mass transfer process can be divided into super-fast(SF)and subsequent minorfast(MF)stages,and the SF stage is vital to the prevention of the blocked layer against the free access for solvent molecules inside propellant grains.The effective solvent diffusion coefficient(Deff)of the propellant surface initially increases from 3.4×10^(-6)to 5.3×10^(-6)m^(2)/s as the temperature increases,and then decreases to 4.1×10^(-8)m^(2)/s at 60-100 min.The value of Deffof surface between 0-1.4 mm has a unique trend of change compared with other regions,and it is much lower than that of the internal at100 min under simulation conditions.Meanwhile,the temperature of the propellant surface increases rapidly at the SF stage(0-100 min)and then very slowly thereafter.Both the evolution of Deffand temperature distribution demonstrate that the blocked layer near the propellant surface has been formed in the time period of approximately 0-100 min and its thickness is about 1.4 mm.To mitigate the formation of blocked layer and improve its drying quality of finial propellant products effectively,it should be initially dried at lower drying temperature(30-40℃)in 0-100 min and then dried at higher drying temperature(50-60℃)to reduce drying time for later drying process in double base gun propellants.The present results can provide theoretical guidance for drying process and optimization of drying parameters for long stick propellants with large web thickness. 展开更多
关键词 Stick propellants DRYING Large web thickness 3D numerical modeling Heat transfer Solvent behavior
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WebService Behavior技术及其应用研究 被引量:5
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作者 杨启亮 崇大平 +1 位作者 刑建春 王平 《计算机应用与软件》 CSCD 北大核心 2008年第2期146-149,177,共5页
WebService Behavior是一种新的Web Services访问技术。在分析Web Services技术的基础上,从配属WebService Behav-ior、定位Web Services、Behavior对Web Services方法的调用及返回结果处理等方面深入研究了WebService Behavior调用原... WebService Behavior是一种新的Web Services访问技术。在分析Web Services技术的基础上,从配属WebService Behav-ior、定位Web Services、Behavior对Web Services方法的调用及返回结果处理等方面深入研究了WebService Behavior调用原理。讨论了WebService Behavior技术在Web页面数据动态刷新、Web页面动画制作等方面的应用。 展开更多
关键词 web SERVICES webSERVICE behavior 数据刷新 动画制作
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基于WebService Behavior的Web页面数据实时显示技术研究与实现 被引量:1
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作者 杨启亮 邢建春 王平 《计算机系统应用》 2007年第10期75-79,共5页
指出了现有Web页面数据实时显示实现技术存在的不足,提出了利用WebService Behavior技术实现Web页面数据实时显示的新方法。研究了NET环境下利用WebService Behavior技术实现Web页面数据实时显示的关键过程。
关键词 web SERVICES webSERVICE behavior NET 实时显示
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基于极大熵的Web服务资源个性化推荐方法 被引量:1
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作者 杨柳青 王冲 《计算机与现代化》 2023年第9期32-37,共6页
当对用户行为特征推荐Web服务资源时,对于不同特征之间的相关性考虑不足,会使得推荐方法的F-Measure值较低。因此,提出一种基于极大熵的Web服务资源个性化推荐方法。根据用户历史操作记录,从用户特征、商品特征、交互特征3个角度提取用... 当对用户行为特征推荐Web服务资源时,对于不同特征之间的相关性考虑不足,会使得推荐方法的F-Measure值较低。因此,提出一种基于极大熵的Web服务资源个性化推荐方法。根据用户历史操作记录,从用户特征、商品特征、交互特征3个角度提取用户隐式行为特征,完善用户缺失信息。根据协同过滤算法,将用户与Web资源之间的联系挖掘出来,生成用户兴趣矩阵。依托极大熵计算原理建立特征函数,明确不同用户行为特征之间的联系,并以此为基础设计Web服务资源选取算法。最后,针对用户基本属性和资源评分矩阵建立约束条件,生成个性化资源推荐方案。实验结果表明该方法的应用,使得F-Measure值与传统方法比较提升了41个百分点与33个百分点,确保推荐结果符合用户需求。 展开更多
关键词 极大熵 web服务资源 个性化推荐 用户兴趣 隐式行为 特征提取
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A Novel Collective User Web Behavior Simulation Method 被引量:2
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作者 Hongri Liu Xu Zhang +1 位作者 Jingjing Li Bailing Wang 《Computers, Materials & Continua》 SCIE EI 2021年第3期2539-2553,共15页
A collective user web behavior simulation is an import means for generating a large-scale user network behavior in a network testbed or cyber range.Existing studies almost focus on individual web behavior analysis and... A collective user web behavior simulation is an import means for generating a large-scale user network behavior in a network testbed or cyber range.Existing studies almost focus on individual web behavior analysis and prediction,which cannot simulate human dynamics that widely exist in large-scale users’behaviors.To address these issues,we propose a novel collective user web behavior simulation method,in which an algorithm for constructing a connected virtual social network is proposed,and then a collective user web behavior simulation algorithm is designed on the virtual social network.In the simulation method,a new epidemic information dissemination algorithm based on the SIR model is proposed to drive the user web behavior with Breadth—First Search algorithm on the connected virtual social network.We specially build an experiment environment with 12 servers by using Docker container technology and then perform a wide range of experiments with different user scales to evaluate the method.The experimental results demonstrate that not only the degrees of the social network but also the time intervals of the collective users’web behavior can be well fitted to a power-law distribution and show that our simulation method can well simulate a collective user web behavior. 展开更多
关键词 web behavior simulation virtual social network human dynamics power-law distribution
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基于Web日志挖掘的网络用户行为交互式可视化分析
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作者 刘翼 高明 +4 位作者 田亮亮 严都力 韦雨萌 李凯茵 张博欣 《延安大学学报(自然科学版)》 2023年第3期78-85,共8页
高校在校大学生用户群体的网络行为分析是一个有着普遍需求和意义的重要课题,具有丰富的现实意义与社会价值。本文提出网络用户行为交互式可视化分析方法,研究分析高校大学生用户群体网络行为的特征和兴趣。首先获取某高校真实的网络用... 高校在校大学生用户群体的网络行为分析是一个有着普遍需求和意义的重要课题,具有丰富的现实意义与社会价值。本文提出网络用户行为交互式可视化分析方法,研究分析高校大学生用户群体网络行为的特征和兴趣。首先获取某高校真实的网络用户访问日志;其次通过清洗缺省值、去重、规范化等数据预处理方法,选取日期、时间、用户账号和访问地址作为特征属性,并在数据集中标记出每个URL的主题分类和每个用户所属的学院等属性;然后从用户、主题分类、时序3个维度分析得出这些属性的分布情况,发现网络用户行为的区别和联系;最后利用ECharts交互式可视化工具展示分析结果。实验结果反映出当前大学生用户的网络行为特征及兴趣喜好,揭示了大学生用户的网络行为模式,为教学管理者的决策提供了数据支持。 展开更多
关键词 交互式可视化分析 网页日志挖掘 网络用户行为 主题分类 高校学生
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基于Web应用前端行为模型的测试用例生成 被引量:1
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作者 刘子文 虞莉娟 +2 位作者 苏义鑫 赵耀 石柱 《计算机科学》 CSCD 北大核心 2023年第7期18-26,共9页
基于Web应用前端模型的测试用例生成是Web应用测试的重要过程,但现有的大多数针对Web应用的模型都只关注Web页面及其事件,忽略了事件触发条件和后续动作。为了更准确地描述现代Web应用程序的动态行为,文中定义了一种新的Web应用前端行... 基于Web应用前端模型的测试用例生成是Web应用测试的重要过程,但现有的大多数针对Web应用的模型都只关注Web页面及其事件,忽略了事件触发条件和后续动作。为了更准确地描述现代Web应用程序的动态行为,文中定义了一种新的Web应用前端行为模型(Front-end Behavior Model, FBM)。由于模型中迁移的触发条件可能存在内部变量,即迁移之间存在依赖关系,使得生成的测试用例不能按照输入序列执行,从而影响测试效果。为此,提出了一种优化分组遗传算法来实现可执行迁移路径FTP的自动生成,该算法考虑FTP生成问题的特点,对染色体初始化和适应度函数做出合理的设计,加入修补算子调整个体长度生成了满足迁移覆盖的FTP,并且通过引入自适应的遗传算子和模拟退火接收机制来减少迭代次数,从而加快求解速度。实验结果表明,该算法能够在更高的求解效率的基础上有效保证迁移路径的可行性以及覆盖率。 展开更多
关键词 web应用测试 前端行为模型 可执行测试用例生成 分组遗传算法
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An Analysis of the Post-buckling of Laminated Plates of Symmetric Cross-Ply
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作者 翁宗诒 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1995年第12期1221-1230,共10页
In this paper, general equations relating to the stability of laminated plates ofsymmetric cross-ply with initial imperfection factors are derived by using thevariational principle. Taking the deflection as the pertu... In this paper, general equations relating to the stability of laminated plates ofsymmetric cross-ply with initial imperfection factors are derived by using thevariational principle. Taking the deflection as the perturbation parameter, theequilibrium path of the post-buckling path of a simply supported rectangular plate isinvestigated with the perturbation method. An approximation expression and a typicalnumerical example are presented to manifest the post-buekling behavior of therectangular plate. 展开更多
关键词 post-buckling behavior perturbation method laminated plates.initial imperfection
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The relationship of Web2.0 technologies and information behavior
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作者 樊懿 《求知导刊》 2015年第8期29-30,共2页
This paper discussed how Web 2.0 technologies relate to human’s information behavior.Firstly,an overview of information behavior is given by previous studies,meanwhile,which has found differences between information ... This paper discussed how Web 2.0 technologies relate to human’s information behavior.Firstly,an overview of information behavior is given by previous studies,meanwhile,which has found differences between information seeking and information searching.While featured web2.0-based tools improve user’s communication experience,especially reflecting on information seeking and information sharing.It is possible that web 2.0 applications provide an interactive platform to promote human’s information behavior effectively. 展开更多
关键词 英语学习 学习方法 阅读知识 阅读材料
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Trust evolvement method of Web service combination based on network behavior
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作者 刘济波 向占宏 朱培栋 《Journal of Central South University of Technology》 EI 2008年第4期558-563,共6页
Based on the problem that the service entity only has the partial field of vision in the network environment,a trust evolvement method of the macro self-organization for Web service combination was proposed.In the met... Based on the problem that the service entity only has the partial field of vision in the network environment,a trust evolvement method of the macro self-organization for Web service combination was proposed.In the method,the control rule of the trust degree in the Dempster-Shafer(D-S)rule was utilized based on the entity network interactive behavior,and a proportion trust control rule was put up.The control rule could make the Web service self-adaptively study so as to gradually form a proper trust connection with its cooperative entities and to improve the security performance of the whole system.The experimental results show that the historical successful experience is saved during the service combination alliance,and the method can greatly improve the reliability and success rate of Web service combination. 展开更多
关键词 network behavior web service combination trust evolvement Dempster-Shafer rule
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Chinese college students' Web querying behaviors:A case study of Peking University
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作者 QU Peng LIU Chang LAI Maosheng 《Chinese Journal of Library and Information Science》 2010年第4期23-36,共14页
This study examined users' querying behaviors based on a sample of 30 Chinese college students from Peking University. The authors designed 5 search tasks and each participant conducted two randomly selected searc... This study examined users' querying behaviors based on a sample of 30 Chinese college students from Peking University. The authors designed 5 search tasks and each participant conducted two randomly selected search tasks during the experiment. The results show that when searching for pre-designed search tasks, users often have relatively clear goals and strategies before searching. When formulating their queries, users often select words from tasks, use concrete concepts directly, or extract 'central words' or keywords. When reformulating queries, seven query reformulation types were identified from users' behaviors, i.e. broadening, narrowing, issuing new query, paralleling, changing search tools, reformulating syntax terms, and clicking on suggested queries. The results reveal that the search results and/or the contexts can also influence users' querying behaviors. 展开更多
关键词 web searching Query behavior Query formulation Query reformulation
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Web users' language utilization behaviors in China
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作者 LAI Maosheng QU Peng ZHAO Kang 《Chinese Journal of Library and Information Science》 2009年第1期1-18,共18页
The paper focuses on the habits of China Web users' language utilization behaviors in accessing the Web. It also seeks to make a general study on the basic nature of language phenomenon with regard to digital acce... The paper focuses on the habits of China Web users' language utilization behaviors in accessing the Web. It also seeks to make a general study on the basic nature of language phenomenon with regard to digital accessing. A questionnaire survey was formulated and distributed online for these research purposes. There were 1,267 responses collected. The data were analyzed with descriptive statistics, Chi-square testing and contingency table analyses. Results revealed the following findings. Tagging has already played an important role in Web2.0 communication for China's Web users. China users rely greatly on all kinds of taxonomies in browsing and have also an awareness of them in effective searching. These imply that the classified languages in digital environment may aid Chinese Web users in a more satisfying manner. Highly subject-specific words, especially those from authorized tools, yielded better results in searching. Chinese users have high recognition for related terms. As to the demographic aspect, there is little difference between different genders in the utilization of information retrieval languages. Age may constitute a variable element to a certain degree. Educational background has a complex effect on language utilizations in searching. These research findings characterize China Web users' behaviors in digital information accessing. They also can be potentially valuable for the modeling and further refinement of digital accessing services. 展开更多
关键词 Digital accessing Language utilization behaviors China's web users
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非对称集中荷载下无腹筋RC梁受剪性能试验研究 被引量:1
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作者 袁健 刘家栋 段绍伟 《湖南大学学报(自然科学版)》 EI CAS CSCD 北大核心 2024年第3期141-148,共8页
非对称集中荷载作用下钢筋混凝土无腹筋简支梁具有两个不同的剪跨比,而两剪跨段受剪承载力与剪力作用之间的相对大小存在不确定性.通过开展6根非对称和4根对称集中荷载作用下钢筋混凝土无腹筋简支梁受剪性能试验研究,获取了破坏形态、荷... 非对称集中荷载作用下钢筋混凝土无腹筋简支梁具有两个不同的剪跨比,而两剪跨段受剪承载力与剪力作用之间的相对大小存在不确定性.通过开展6根非对称和4根对称集中荷载作用下钢筋混凝土无腹筋简支梁受剪性能试验研究,获取了破坏形态、荷载-跨中位移曲线和纵向受拉钢筋应变,并分析了《混凝土结构设计规范》(GB 50010—2010)公式、修正压力场理论、基于截面应变分析的抗剪模型和Zsutty统计公式的适用性.结果表明,对于小剪跨比恒为1.0的无腹筋简支梁,大剪跨比为2.0~4.0的梁均在大剪跨段发生剪切破坏;当大剪跨比由3.0增大至3.5时,梁的极限承载力出现由大剪跨段控制转变为小剪跨段控制的现象《.混凝土结构设计规范》(GB50010—2010)预测非对称集中荷载作用下钢筋混凝土无腹筋简支梁发生剪切破坏的位置与试验结果相反,而Zsutty统计公式的预测效果最好. 展开更多
关键词 非对称荷载 钢筋混凝土 无腹筋梁 受剪性能 静力试验
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简支波形腹板钢箱组合截面与传统截面箱梁桥抗震性能对比分析
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作者 赫中营 高嘉 +1 位作者 孙鹏辉 王根会 《工程抗震与加固改造》 北大核心 2024年第1期83-92,82,共11页
为研究波形腹板钢箱-混凝土组合梁桥(CW-SBCCGB)与传统箱梁桥抗震性能的异同,基于截面等效原理,根据某实际工程CW-SBCCGB的单箱截面,等效出波形腹板混凝土箱梁桥(CW-CBGB)和混凝土箱梁桥(CBGB)的单箱截面,再结合动力分析理论和ABAQUS有... 为研究波形腹板钢箱-混凝土组合梁桥(CW-SBCCGB)与传统箱梁桥抗震性能的异同,基于截面等效原理,根据某实际工程CW-SBCCGB的单箱截面,等效出波形腹板混凝土箱梁桥(CW-CBGB)和混凝土箱梁桥(CBGB)的单箱截面,再结合动力分析理论和ABAQUS有限元模型对比分析3种截面简支梁桥动力特性和抗震性能的不同。结果表明:3种截面简支梁桥前五阶振型不变,CW-CBGB和CBGB前三阶频率相比于CW-SBCCGB有所下降,但相差不超过1Hz,第四阶及以后频率差异逐渐变大;剪滞效应对CW-SBCCGB和CW-CBGB动力特性影响较大,对CBGB影响较小;在纵桥向+竖桥向和横桥向+竖桥向地震作用下,CW-SBCCGB和CBGB的墩顶位移和跨中位移均大于CW-CBGB结构,CW-SBCCGB主梁跨中截面剪力最小,CW-CBGB跨中截面弯矩最小,说明CW-SBCCGB和CW-CBGB的抗震性能均优于CBGB的抗震性能。 展开更多
关键词 抗震性能 波形腹板钢箱-混凝土组合梁桥 波形腹板混凝土箱梁桥 混凝土箱梁桥 截面等效
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波纹腹板内衬混凝土组合梁高温下抗剪性能研究
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作者 周焕廷 曹景曦 崔帅 《武汉理工大学学报(交通科学与工程版)》 2024年第3期508-514,共7页
文中采用有限元软件建立波纹钢腹板组合梁(CBCW)和波纹钢腹板内衬混凝土组合梁(CBCWC)在火灾下的数值模型,研究组合梁高温下主应力、剪应力演化和组合梁截面各部件的承剪比.结果表明:在高温条件下,内衬混凝土中温度梯度改变了内衬混凝... 文中采用有限元软件建立波纹钢腹板组合梁(CBCW)和波纹钢腹板内衬混凝土组合梁(CBCWC)在火灾下的数值模型,研究组合梁高温下主应力、剪应力演化和组合梁截面各部件的承剪比.结果表明:在高温条件下,内衬混凝土中温度梯度改变了内衬混凝土的承剪能力和传力路径,进而影响CBCWC的剪力分配机制.相对于CBCW,高温下CBCWC中波纹钢腹板的抗剪性能得到显著提升.在临界状态时,CBCW的失效机理为波纹钢腹板发生严重的剪切屈曲,CBCWC的抗剪机理可等效为力学“桁架”模型,失效机理为等效拉杆和等效压杆丧失承载能力.CBCWC中布置的内衬混凝土抑制了波纹钢腹板的高温剪切屈曲,显著提高了组合梁高温下的耐火极限. 展开更多
关键词 耐火性能 抗剪性能 波纹钢腹板 内衬混凝土 非线性有限元
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Web服务行为兼容性的判定与计算 被引量:29
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作者 邓水光 李莹 +2 位作者 吴健 邝砾 吴朝晖 《软件学报》 EI CSCD 北大核心 2007年第12期3001-3014,共14页
确保Web服务行为兼容是实现Web服务无缝集成与协作的一个重要问题.在服务视图概念的基础上,给出了Web服务行为兼容性的相关定义.提出一种基于π演算的Web服务行为兼容性的定性判定与定量计算方法.该方法首先通过算法自动地将Web服务行为... 确保Web服务行为兼容是实现Web服务无缝集成与协作的一个重要问题.在服务视图概念的基础上,给出了Web服务行为兼容性的相关定义.提出一种基于π演算的Web服务行为兼容性的定性判定与定量计算方法.该方法首先通过算法自动地将Web服务行为和Web服务间的交互行为表达成π演算进程,然后借助π演算的操作语义和形式化推演实现服务行为兼容性自动的定性判定;随后在π演算的进程变换理论的基础上提出算法实现服务兼容性自动的定量计算.该方法在服务动态组合与服务动态替换中的典型应用表明,该方法对于服务组合的正确建立和可靠执行具有重要作用. 展开更多
关键词 web服务 服务行为 行为兼容 Π演算 进程
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Web服务行为一致性与相容性判定 被引量:17
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作者 殷昱煜 李莹 +1 位作者 邓水光 尹建伟 《电子学报》 EI CAS CSCD 北大核心 2009年第3期433-438,共6页
Web服务行为相容性和一致性是保证服务组装的正确性和可靠性的关键.然而,如何有效快捷的对其判定是一大难点.在深入分析服务行为特点的基础上,引入Martin-Lf类型论(简称:MTT),并针对其在服务动态行为描述上的不足进行有益的扩展.然后,... Web服务行为相容性和一致性是保证服务组装的正确性和可靠性的关键.然而,如何有效快捷的对其判定是一大难点.在深入分析服务行为特点的基础上,引入Martin-Lf类型论(简称:MTT),并针对其在服务动态行为描述上的不足进行有益的扩展.然后,基于扩展后MTT的相关理论,给出服务行为相容性和一致性的证明规则.最后,通过实例给出服务行为相容性和一致性判定过程,并分析其复杂度. 展开更多
关键词 web服务行为 相容性 一致性
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一种基于Web群体外联行为的应用层DDoS检测方法 被引量:17
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作者 王风宇 曹首峰 +2 位作者 肖军 云晓春 龚斌 《软件学报》 EI CSCD 北大核心 2013年第6期1263-1273,共11页
由于攻击者采用各种技术手段隐藏攻击行为,DDoS攻击变得越发难以发现,应用层DDoS成为Web服务器所面临的最主要威胁之一.从通信群体的层面分析Web通信的外联行为特征的稳定性,并提出了一种应用层DDoS检测方法.该方法用CUSUM算法检测Web... 由于攻击者采用各种技术手段隐藏攻击行为,DDoS攻击变得越发难以发现,应用层DDoS成为Web服务器所面临的最主要威胁之一.从通信群体的层面分析Web通信的外联行为特征的稳定性,并提出了一种应用层DDoS检测方法.该方法用CUSUM算法检测Web群体外联行为参数的偏移,据此来判断DDoS攻击行为的发生.由于外联行为模型刻画的是Web通信群体与外界的交互,并非用户个体行为,所以攻击者难以通过模仿正常访问行为规避检测.该方法不仅能够发现用户群体访问行为的异常,而且能够有效区分突发访问和应用层DDoS攻击.模拟实验结果表明,该方法能够有效检测针对Web服务器的不同类型的DDoS攻击. 展开更多
关键词 应用层DDoS web群体 外联行为 CUSUM
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一种需求驱动的自主Web服务聚集方法 被引量:9
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作者 叶荣华 金芝 +2 位作者 王璞巍 郑丽伟 杨夏芬 《软件学报》 EI CSCD 北大核心 2010年第6期1181-1195,共15页
引入具有主动搜索需求能力的自主Web服务概念,提出基于环境本体的意图-行为-实现机制,用于描述服务请求和自主Web服务能力,构型了一种需求驱动的自主Web服务聚集的模型.给出了基于意图-行为-实现机制的需求能力匹配算法和自主Web服务聚... 引入具有主动搜索需求能力的自主Web服务概念,提出基于环境本体的意图-行为-实现机制,用于描述服务请求和自主Web服务能力,构型了一种需求驱动的自主Web服务聚集的模型.给出了基于意图-行为-实现机制的需求能力匹配算法和自主Web服务聚集算法.最后,通过对应用案例的研究来展示该方法的可行性. 展开更多
关键词 自主web服务 需求驱动 聚集 意图 行为 服务组合
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