基于案例推理的谈判支持系统的研究

通过对谈判案例的表达、检索、复用、评价、适配和学习的研究,基于案例推理的谈判支持系统解决了谈判者谈判相关知识缺乏的问题;在谈判案例表达方法中提出了属性分类方法;采用改进的最近相邻法进行谈判案例适配,以获得更相近的谈判历史案例;通过对基于案例推理的谈判机制分析,构建了基于案例推理谈判支持系统的体系结构,并详细设计了谈判系统的功能.最后,通过一个采购谈判方案验证了基于案例推理谈判支持系统的实用性.     

基于案例推理的谈判支持系统的研究

通过对谈判案例的表达,检索,复用,评价,适配和学习的研究,基于案例推理的谈判支持系统解决了谈判者谈判相关知识缺乏的问题,在谈判案例表达方法中提出了属性分类方法;采用改进的最近相邻法进行谈判案例适配,以获得更相近的谈判历史案例;通过对基于案例推理的谈判机制分析,构建了基于案例推理谈判支持系统的体系结构,并详细设计了谈判系统的功能.最后,通过一个采购谈判方案验证了基于案例推理谈判支持系统的实用性.

     

遗传算法的关键链项目调度基准计划问题研究

关键链法是一种新的项目调度技术,近年已成为项目管理理论研究和实践的热点。本文面向大规模项目管理的应用需求,研究关键链项目调度的优化问题模型和求解算法,为关键链项目调度问题基准计划的产生设计一种遗传算法,并验证所提出算法的有效性。     

基于定性仿真的谈判模型研究

提出了一种基于定性仿真的谈判模型.谈判过程涉及到很多不确定因素,针对目前谈判支持系统中谈判模型存在过于依赖效用函数和传统的数字仿真技术难以准确模拟谈判过程的问题,在Kuipers的定性仿真理论基础上对谈判过程进行了定性推理,建立了谈判决策行为的状态转移模型,给出了决策变量变化的定性描绘图.实例仿真结果表明该谈判模型能够预测系统未来行为,帮助谈判者界定系统参数变化趋势.     

Dynamic pricing by hopfield neural network

The increase in the number of shopbots users in e-commerce has triggered flexibility of sellers in their pricing strategies. Sellers see the importance of automated price setting which provides efficient services to a large number of buyers who are using shopbots. This paper studies the characteristic of decreasing energy with time in a continuous model of a Hopfield neural network that is the decreasing of errors in the network with respect to time. The characteristic shows that it is possible to use Hopfield neural network to get the main factor of dynamic pricing; the least variable cost, from production function principles. The least variable cost is obtained by reducing or increasing the input combination factors, and then making the comparison of the network output with the desired output, where the difference between the network output and desired output will be decreasing in the same manner as in the Hopfield neural network energy. Hopfield neural network will simplify the rapid change of prices in e-commerce during transaction that depends on the demand quantity for demand sensitive model of pricing.     

工作流挖掘：一种新型工作流自动化建模方法

为解决传统工作流建模方式主观性强、效率低以及成本高等问题，出现一种从工作流日志中自动化推导工作流模型的建模方法，又称工作流挖掘。这种新方法在国际上还处于研究初级阶段，但已引起广泛关注。该文对当前主要研究学者的工作及挖掘算法进行总结，介绍了两种不同类型挖掘算法的具体建模过程，并对其性能进行比较分析，用实例进行解释说明。     

密封电子拍卖RHT加密协议

在密封电子拍卖中,为了保证密封投标竞争的公平,电子拍卖系统需要保护已经提交到系统中的密封标书在开标前的信息安全.文中综合应用非对称密钥RSA、数字摘要和时间锁定等信息安全技术设计了密封电子拍卖RHT加密协议.该协议可保证加密后的标书信息在限定时间内不能够被任何人非法地解密.该协议不但可以认证投标各方的身份,而且能够保证标书信息的机密性、完整性和不可否认性,从而有效地满足了密封电子拍卖系统的安全性要求.     

Study on individualized information service for the reader in the library based on the network

With the massive increase of digital resource based on the network,it becomes very important that how to help readers acquire the information needed according to the individualized requirement and interest in an accurate,convenient and prompt method. Therefore,it is very urgent to investigate individualized information service of library. In this paper,based on the development of the individualized information service for the reader in the college library,the individualized information service is clarified by using three perspectives,including establishment of individualized information demand model,integration of internal and external resource and protection of the reader privacy. Finally,the corresponding strategy and related measure are presented.     

The tool for building an NN based on improved BP algorithm

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