一种基于粗糙集的供应链合作伙伴选择新方法

用粗糙集中组合属性重要度确定单属性重要度的理论,给出了供应链最佳合作伙伴选择的新方法,改进了文献[1]的粗糙集评价方法,新方法计算的指标权重结果避免了文献[1]中计算的指标权重为0的情况出现,同时新算法计算的各指标重要度之和比原算法各指标重要度之和大,计算精度更高,评价结果更符合实际。     

A study on forecasting electricity production and consumption in smart cities and factories

The electrical power sector must undergo a thorough metamorphosis to achieve the ambitious targets in greenhouse gas reduction set forth in the Paris Agreement of 2015. Reducing uncertainty about demand and, in case of renewable electricity generation, supply is important for the determination of spot electricity prices. In this work we propose and evaluate a context-based technique to anticipate the electricity production and consumption in buildings. We focus on a household with photovoltaics and energy storage system. We analyze the efficiency of Markov chains, stride predictors and also their combination into a hybrid predictor in modelling the evolution of electricity production and consumption. All these methods anticipate electric power based on previous values. The main goal is to determine the best method and its optimal configuration which can be integrated into a (possibly hardware-based) intelligent energy management system. The role of such a system is to adjust and synchronize through prediction the electricity consumption and production in order to increase self-consumption, reducing thus the pressure over the power grid. The experiments performed on datasets collected from a real system show that the best evaluated predictor is the Markov chain configured with an electric power history of 100 values, a context of one electric power value and the interval size of 1.     

A case analysis of E-government service delivery through a service chain dimension

Unlike e-business few studies have examined how information is generated and exchanged between stakeholders in an e-government service chain to generate value for citizens. This case study applies the concept of service chains to empirically explore: a) how internal and external business activities in local government authorities (LGAs) contribute to electronic service delivery, and b) the impact that internal and external stakeholders have on these activities. The case study found that the diversity of stakeholders involved and lack of appropriate mechanisms for information exchange and collaboration are posing the biggest challenges for efficient local e-government service delivery.     

基于广义动态补偿器的广义系统的特征结构配置

研究了采用动态补偿器对广义系统进行特征结构配置的问题,建立了该问题的解的参量表示,并给出了系统具有希望闭环特征结构的动态补偿器设计算法。而且,通过实例证明了该算法的有效性。     

概率方法在解决实际问题中的应用

举例说明如何利用概率论和随机过程的相关知识建立目标函数,求出最优值来解决实际问题。     

横向并购中的供应链信息沟通与共享

横向并购作为企业快速扩张的模式已成为当代经济生活的重要内容。本文从横向并购中的信息沟通层次与价值研究入手，分析了并购中的信息沟通途径，建立了基于协同的信息沟通机制，提出了搭建供应链信息共享平台的思想、方法和控制方式等，为实现并购的供应链协同目标打下信息沟通的基础。     

服务台由N个部件串联的M/G/1(E,MV)可修排队系统的平稳分布

文章考虑到服务台是由N个不同型部件串联组成的M/G/1(E,MV)可修排队系统,其中服务台工作当且仅当N个部件都工作.假定每个部件的寿命服从指数分布,故障部件的修理时间服从一般分布.通过引入顾客的“广义服务时间”和队长过程的嵌入Markov链,得到了嵌入Markov链的平稳分布的递推表达式以及平均队长.     

从长江黄金水道到长江经济带——关于建设长江经济带的思考

本文从长江干流9省市的经济分析入手，从生态长江、现代物流视角，探讨了长江经济带的建设问题。文章利用智猪博弈理论，针对长江经济带难以真正形成经济体的症结，提出以国家战略管理长江，呼吁“大猪”（下游省市）先动，以此推进和完善长江供应链体系并建立上下游资源与生态的补偿机制。     

试论教学信息的传输和变换

在教学过程中,教师和学生总是处在与外部世界复杂而永恒的联系之中,并且总是由教师、学生之间及其与外界的交往实现这种联系。从信息的角度看,这种联系和交往就是以信息为媒体的联系和交往。教学过程是一个信息的传输、变换、反馈和控制的系统。用信息理论的思想方法考察教学活动,可以突破传统的理论陈述,更清楚地揭示教学过程的特点和规律。本文主要阐述教学信息的涵义及教学信息的传输、变换的基本理论问题。     

独立型酒店的营销之道

随着越来越多的国际连锁酒店进入中国,国内独立型酒店将面临激烈的竞争.文章从酒店内外部环境两方面着手探讨了独立型酒店怎样才能在知名度低、资源有限、成本相对较高的情况下取得成功的三点注意事项,最后强调指出了优质服务在酒店长期发展中的重要作用.