【作者】 孙天昊；

【导师】 程代杰；

【作者基本信息】 重庆大学 ， 计算机系统结构， 2004， 硕士

【摘要】 随着Internet应用的深入,电子商务得到了迅猛的发展,其中B2B模式是电子商务中最主要的一种模式,它为企业间商务活动提供了全新的途径。为了保证全球范围内企业间商务信息交互的一致性,UN/CEFACT和OASIS制定了以XML语言为基础的电子商务数据交换规范ebXML(e-business XML)。该规范覆盖了电子商务过程中合作伙伴发现、商务流程定义和商务执行等电子商务活动的核心过程,为全球化企业电子商务奠定了基础。同时,分布式人工智能中Agent技术的发展和逐步成熟为商务活动的自动化、智能化提供了可能。协商作为商务活动中的一至关重要的组成部分,它的结果直接影响商务活动的继续执行。目前协商问题是多Agent系统研究的热点。论文以重庆市科技攻关项目《电子商务营运模式、模型、算法及支撑技术研究》为背景,研究基于ebXML的自动协商问题,具体的内容是:基于ebXML通过自动协商达成交易伙伴间的合作协议协定(Collaboration-Protocol Agreement,CPA)。论文的主要研究成果如下:提出了CPA模板的自动生成模型和算法合作协议概要(Collaboration-Protocol Profile,CPP)描述了交易伙伴的信息交换和所支持的商业协作能力,交易伙伴间只有达成一致的商务合作协议协定(CPA)之后,才可能开展下一步的商务活动。论文在对CPP复杂的文档结构进行详细分析的基础上,提出了CPA模板(CPA Template,CPAT)的自动生成模型和算法,有了CPA模板,便有了生成CPA文档的基础,CPA模板即是协商的对象。提出了基于CPA模板的自动协商模型该模型包括协商内容、协商协议和协商策略等关键元素。模型紧密结合ebXML中特定的商务环境,可有效的描述协商问题和协商的动态特性。模型中将建立协商描述文档(Negotiation Descriptor Document,NDD)来描述双方可以协商的各属性以及它们对应的取值范围。协商协议和相关协商策略研究协商协议是管理Agent交互的规则,一个良好的协议将有助于协商活动顺利地进行,论文中研究的协商协议为轮流出价的讨价还价协商协议。协商策略是Agent进行推理决策的根据,只有在正确的策略指导下Agent才可能做出理性的推理与决策。可见一个好的协商策略是协商成功的关键。在实际的协商过程中,信息的动态变化以及信息的不完全性都增加了协商策略的研究难度。<WP=4>论文研究了基于时间的协商策略、基于对方行为的协商策略、组合协商策略和互利交换策略等。协商系统设计论文基于ebXML规范创建了基于CPA模板的自动协商系统;并对提出的模型和算法进行模拟实验。首先设计和实现CPA模板的自动生成模型和算法,通过交易双方的CPP文档生成CPA模板,接着设计和实现NDD文档,通过自动协商模型选择合适的协商协议和协商策略生成CPA文档。更多还原

【Abstract】 With deeply application of Internet, e-business has been sharply developed. B2B, a most primary schema of e-business, supply a new approach of business activities among enterprises. In order to assure consistency of business information exchange among enterprises in the world, UN/CEFACT and OASIS establish ebXML (e-business XML ) which is a e-business data exchange specification based on XML. This specification involves core processes in e-business process, such as discovery of collaboration parts, defining of business process, execution of business, etc. which establishes base of global enterprise e-business.With the development and increasingly ripeness of Agent technology of Distributed Artificial Intelligence, the same time, it is possible to make business process automation and intelligence. Negotiation is a most important phase of business process, direct affects sequent execution of business process. Now negotiation is a hot research of Multiple Agent System.This thesis researches automated negotiation based on ebXML, with a background of research of the operation mode, model, algorithm and supporting technology of e-business (2002), a scientific research project of Chongqing. For the special environment, the question of research is how to reach Collaboration-Protocol Agreement (CPA) between trade parts by automated negotiation under ebXML. The following is the Main research of this dissertation:Proposed Automated Generation Model and Algorithm of CPA TemplateCollaboration-Protocol Profile (CPP) describes exchange information and business collaboration capability of trade part. It is impossible to continue unless trade parts reach CPA. Based on elaborate analysis of complicated document structure of CPP, we propose CPA Template Automated Generation Model and Algorithm. CPA Template is base of CPA’s Generation and object of negotiation.Proposed Automated Negotiation Model based on CPA TemplateThis model includes key elements, such as negotiation elements, negotiation protocol, negotiation strategies, etc. This model can describe negotiation question effectively and dynamic characteristics, tightly linked to special business environment of ebXML. Negotiaton Descriptor Docoment (NDD) which is created in model describes elements while need to negotiate between partners and their range of value. <WP=6>Research on Negotiation Protocol and Associated Negotiation StrategiesNegotiation Protocol is the rule of interaction of Agents. A good protocol can make negotiation activities successfully to carry through. Negotiation Protocol which we research is Alternating Offers Bargaining Negotiation Protocol.Negotiation Strategies are foundation of Agent reasoning and making decision. In order to maximate benefit, it is impossible to make right and rational reasoning and decision to unless there are good strategies. Therefore, a good negotiation strategy is a key to success. But dynamic variability and incomplete information in practical negotiation process enlarge difficulty of negotiation research. We mainly research negotiation strategy based on time, negotiation strategy based on behavior of opponent, composite negotiation strategy and exchange benefit strategy.Design of Negotation SystemWe created CPA Automated Negotiation System based on CPA Template under ebXML. In order to validate feasibility and availability of models and algorithms proposed in dissertation, we do Simulation Experiment. Firstly, we design and implement Automated Generation Model and Algorithm of CPA Template, generate CPA Template by CPPs of both trade parts, then we design and implement NDDs, generate CPA using appreciate negotiation protocol and negotiation strategy through CPA Automated Negotiation Model.更多还原