Fuzzy Multi-Objective Decision Model of Supplier Selection with Preference Information

1. INTRODUCTIONNowadays supply chain managemellt is a hot topic in acadellila circle and induStrial Practice. Purchasing andsupply managemellt is the key step of supply chain management. The combination of focusing more on coLlaborative relationshipsand increasingly strategic role of purchasing has resulted in a rise in prominence ofstrategies of supply base reduction and relationships management (supplier-buyer relationships management)within the last few years (Lamming 1993, bort and p…     

Optimal purchasing process for electricity and renewable energy credits with price and demand uncertainty

This paper optimizes the electricity and renewable energy credit (REC) purchasing process for energy distribution. Electricity is traded in deregulated time-sequential markets at fluctuating prices. Optimal electricity purchasing under price and demand uncertainty is a challenging task for electricity distributors, and the recently implemented renewable portfolio standards (RPS) further complicate the purchasing process. Government regulatory decisions concerning the RPS require distributors to purchase corresponding certificates, namely RECs, equivalent to a certain percentage of their electricity sales. This paper formulates and optimizes the joint purchasing process for electricity and RECs. It also analyzes the effect of RPS policy on electricity distributors.     

ORGANIZATIONAL LEARNING AND VENDOR SUPPORT QUALITY BY THE USAGE OF APPLICATION SOFTWARE PACKAGES： A STUDY OF ASIAN ENTREPRENEURS

In this paper we study how organizational learning impacts organizational behavior, and howvendor support quality enhances product adoption and usage behavior.These constructs were verifiedusing Application Software Packages(ASP)-a prewritten, precoded, commercially available set ofprograms that eliminates the need for individuals or organizations to write their own softwareprograms for certain functions. The relationship between ASP usage, usage outcomes and useprocesses were also investigated. Two hundred and ninety-five Chinese, Indian, and Malayentrepreneurships were studied. It was found that usage outcome strongly determines usage, while useprocess has only an indirect relationship (via outcome) on usage. The impact of organizational learningand vendor service quality on usage, usage outcome, and use process were robust. Theoretical andpractical implications of the research are discussed.     

A Historical Perspective on Development of Systems Engineering Discipline:A Review and Analysis

Since its inception,Systems Engineering(SE)has developed as a distinctive discipline,and there has been significant progress in this field in the past two decades.Compared to other engineering disciplines,SE is not affirmed by a set of underlying fundamental propositions,instead it has emerged as a set of best practices to deal with intricacies stemming from the stochastic nature of engineering complex systems and addressing their problems.Since the existing methodologies and paradigms(dominant patterns of thought and concepts)of SE are very diverse and somewhat fragmented.This appears to create some confusion regarding the design,deployment,operation,and application of SE.The purpose of this paper is 1)to delineate the development of SE from 1926-2017 based on insights derived from a histogram analysis,2)to discuss the different paradigms and school of thoughts related to SE,3)to derive a set of fundamental attributes of SE using advanced coding techniques and analysis,and 4)to present a newly developed instrument that could assess the performance of systems engineers.More than Two hundred and fifty different sources have been reviewed in this research in order to demonstrate the development trajectory of the SE discipline based on the frequency of publication.     

VERTICAL HEREDITY VS. HORIZONTAL GENE TRANSFER： A CHALLENGE TO BACTERIAL CLASSIFICATION

The diversity and classification of microbes has been a long-standing issue.Molecular phylogeny of the prokaryotes based on comparison of the 16S rRNA sequences of the small ribosomal subunit has led to a reasonable tree of life in the late 1970s. How-ever, the availability of more and more complete bacterial genomes has brought about complications instead of refinement of the tree. In particular, it turns out that different choice of genes may tell different history. This might be caused by possible horizontal gene transfer (HGT) among species. There is an urgent need to develop phylogenetic methods that make use of whole genome data. We describe a new approach in molecular phylogeny,namely, tree construction based on K-tuple frequency analysis of the genomic sequences.Putting aside the technicalities, we emphasize the transition from randomness to determin-ism when the string length K increases and try to comment on the challenge mentioned in the title.     

VIBRATIONAL SYSTEMS OF A CLASS OF THIN CYLINDRICAL SHELLS

The vibration of thin circular cylindrical shells has been studied extensively.In this paper, the existence and uniqueness of the solution of this system are proved bymeans of semigroup theory on the Hilbert space, and the eigenvalue problem is discussed.This offers a theoretical basis for solving this kind of engineering problems.     

A Case Study on Xiamen-TSA(1998)in China

1 Background of the ResearchSince the l990's, tourism activities have been spreading rapid1y and wide1y in China. As anew economic and social phenomenon, the tourism'S impact on the economy has beendrawn more attention from businesses and the central or local government. There is anurgent need for a new method to measure the importance of tourism on economy. It is onlyTSA that could bare the task with a much better credibility and a systematical perspective.This pi1ot research is the first …     

A New Method of Small Moving Target Detection and Its Performance Analysis

This paper describes a new method of small moving target detection and analyzes the performance of this algorithm. The method is based on multi-level threshold decision-making and sliding trajectory confidence testing technology. The parameters of the algorithm are also given. Experiments have been conducted, the results show that the algorithm has advantages of high detection probability, simple structure, and excellent real-time performance.     

A Novel Concatenated Chaotic Communication System

A strategy for a novel concatenated chaotic communication system is presented. The transmitter system comprises chaotic turbo encoder and logistic CSK block in a serially concatenated form. Chaotic turbo code is capable of reducing bit error rate (BER) of the chaotic system in the AWGN channel. Through the chaotic turbo encoder, the coded sequence, which has quasi-chaotic properties, will be transmitted into the logistic CSK block. Having a very sensitive dependence on initial conditions of the map, the logistic CSK block can also be taken as the chaotic authentication method. The receiver, which has logistic demodulation block and chaotic decoder, is a linear asymptotic approximation to the inverse of the transmitter system. A chaotic iterative soft-decision decoding algorithm is also developed based on conventional maximum A posteriori decoding algorithm. At last, a two-step authentication method of this chaotic system is also presented.     

基于AHP和NEULONET的供应商选择问题

供应商选择已经成为企业降低成本、提高服务与核心竞争能力的重要因素之一。利用层次分析法(AHP)在权重确定、定性问题量化以及神经逻辑网络(NEULONET)在逻辑推理上的优势来进行供应商的选择,建立了供应商选择的网络模型。该模型通过对不同的领域专家、不同的领域指标赋予不同的权重,从而改进了单纯采用AHP法存在的问题,并且利用AHP法来确定NEULONET一些层次的权重,使得网络的构造更加科学和适用。通过算例的检验,本方法是可行和有效的。     

MULTI-CRITERIA UNIVERSITY SELECTION:FORMULATION AND IMPLEMENTATION USING A FUZZY AHP

Collaboration with universities as 'knowledge factories' is increasingly perceived to be an effective and viable solution for firms to gain competitive advantage.One of the main challenges firms face in this area is how to select the best university for collaboration.This selection undoubtedly affects some other strategic activities of firms,such as managing and governing the relationship with the selected university and,most importantly,firm performance.As such,the selection becomes an important strategic decision that deserves a great deal of attention.Thus far,no systematic attempt has been made to investigate this significant area of research.The main purpose of this study is to formulate a decision-making model for university selection.Reviewing existing literature of university-industry relationship yields a list of relevant criteria for this problem.The problem is then formulated as a multi-criteria decision-making(MCDM) model,and a fuz2 y AHP is used to provide the solution.To illustrate the model,three Dutch universities are ranked based on the importance of the selected criteria.     

提高层次分析法评价精度的几种方法

为了提高层次分析法在实际应用中的评价精度，本文拟从调查表、标度的选择、判断矩阵的建立、以及“序位逆转”问题的正确认识等几个关键阶段进行了分析和研究，并提出了相应的改进思路及处理方法。由此可为理论与实际工作者正确应用层次分析法、提高其评价准确性及可信度提供一个有效、实用的参考方法。     

修正AHP中判断矩阵一致性的加速遗传算法

作为系统工程中典型的定性定量综合集成方法,层次分析法(AHP)在各种复杂系统综合评价和多目标决策中具有广泛的应用价值.为修正AHP中判断矩阵的一致性,提出了用加速遗传算法同时修正判断矩阵一致性和计算AHP中各要素的排序权值的新方法(AGA-CAHP).理论分析和实例分析的初步结果说明:AGA-CAHP法直观、实用,计算结果稳定、精度高,在系统工程中具有推广应用价值.     

秘书问题的一种实用策略

“截止阀法则”是秘书问题中最常使用的一种决策方式, 但在目前的应用中普遍不涉及标杆策略变化的情况, 更缺乏对阀值和标杆关系的定量分析. 有鉴于此, 推导了由阀值和标杆到期望排名的计算公式, 指出在秘书问题中“比决策时机 更重要的是决策的参照标准”, 进而提出一种以苏格拉底“三分决策法”为基础的、可应用于实际的简化策略: 当选项总量低于100时, 以总量的1/3为样本, 并以1-3号标杆为参照选取目标. 对比分析表明, 该策略可操作性强, 性能优越, 其有效性可达到理论最优期望 的95%以上.     

产品伤害危机的营销补救策略优化

在归纳既有文献对产品伤害危机应对策略研究的基础上, 梳理了营销补救策略遴选的决策属性, 并建立反映决策属性之间网络关系的营销补救策略优化的多目标决策模型. 在此基础上, 应用AHP、ANP和TOPSIS复合的多目标决策方法, 构建决策属性权重计算方法, 以及营销补救策略优化排序的一般性流程. 食品企业的问卷调查结果表明: 当产品伤害危机发生时, 社会责任是控制层的优先属性, 消费者考虑集缩减是网络层元素的优先属性, 主动召回和行业应对分别是最优和最差的营销补救策略.     

综合大学教学工作的评价与应用

从定性分析和定量评价相结合的角度出发，以层次分析法和模糊数学为基础，研究建立了对综合大学教学工作进行综合评价的定量方法。通过对某省综合大学进行了实例评价，证明该方法是简单实用的.     

Quantitative Evaluation of Real Estate's Risk based on AHP and Simulation

New quantitative model of evaluating the economic risk of a real estate project has been proposed in this article and the weight of each risk factor influencing the outcome of a real estate project in the model has been objectively calculated by using AHP. On the basis of simulation, the quantified evaluation and analysis of economic risk of example has been done; the sensitivity analysis of the influence of one factor or more factors combined on the real estate project has been made by using new model proposed in this article.     

基于供应商满意度与模糊能力的服务大规模定制供应链调度优化

稳定多样的服务资源是服务大规模定制绩效的重要保障，服务集成商不单要重视客户需求，还要注重提高供应商满意度，从而吸引更多服务资源整合到服务供应链中。供应商满意度被分解为订单需求偏好和协调配合程度两个维度，并从服务供应链的集成特性和供应商相互制约特性出发，论述了其对服务大规模定制模式下供应链调度方案的重要影响。服务供应商的需求偏好与动态联盟造成供应商服务能力的不确定性。构建基于供应商满意度与模糊能力的多目标、多阶段供应链调度优化模型和求解算法。模型较好地模拟了服务定制订单的复杂性与服务能力的不确定性，算例分析验证了模型与算法的有效性。