| 基于广义随机着色Petri网的Web服务组合模型 |
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| 引用本文： | 杨年华,虞慧群,郭新顺.基于广义随机着色Petri网的Web服务组合模型[J].计算机科学,2012,39(4):142-144. |
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| 作者姓名： | 杨年华 虞慧群 郭新顺 |
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| 作者单位： | 1. 上海对外贸易学院商务信息学院 上海201620
2. 华东理工大学计算机科学与工程系 上海200237 |
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| 基金项目： | 国家自然科学基金，上海市曙光计划项目，上海市高校"085工程"项目，上海市教委科研创新项目 |
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| 摘 要： | 给出了广义随机着色Petri网(GSCPN)和基于GSCPN的Web服务模型,实现了Web服务QoS和数据的表示,并给出了基于GSCPN的服务组合运算方法。用模型的层次化方法来降低模型的复杂性,一定程度上减轻了模型状态爆炸问题。分析了组合运算的性质,探讨了模型的性质和QoS分析方法。
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| 关 键 词： | Petri网 Web服务 服务组合 建模 |
Web Service Composition Model Based on Generalized Stochastic Colored Petri Nets |
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| YANG Nian-hua
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YU Hui-qun
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GUO Xin-shun.Web Service Composition Model Based on Generalized Stochastic Colored Petri Nets[J].Computer Science,2012,39(4):142-144. |
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| Authors: | YANG Nian-hua YU Hui-qun GUO Xin-shun |
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| Affiliation: | 1(School of Business Information Management,Shanghai Institute of Foreign Trade,Shanghai 201620,China) 1(Department of Computer Science and Engineering,East China University of Science and Technology,Shanghai 200237,China) 2 |
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| Abstract: | A generalized stochastic colored Petri net(GSCPN) and a Web service model based on GSCPN were pro-
posed. QoS and data representations were realized in this model. Web service composition algorithms based on GSCPNs
were proposed. A hierarchical method for GSCPN was proposed for reducing the complexity of a Web service model and
mitigating the state explosion problem partly. Properties of composition operations were analyzed. Approaches of analy-
zing properties and QoS of the model were investigated. |
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| Keywords: | Petri net Web service Scrvicc composition Modeling |
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