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基于凸情形下在线设备更新问题的竞争分析

系统工程理论与实践 2009年第11期29卷 145-151页

作者：辛春林陈剑刘天亮北京化工大学经济管理学院北京100029 清华大学经济管理学院北京100084

市场以在线的方式给出新设备,决策者必须决定是否更新现有的设备,并确定何时更新?即在已知现在和过去的设备信息和订单信息而对未来信息一无所知情况下,决策如何更新设备完成陆续达到的订单需求.优化目标是使设备更新投资成本与设备运... 详细信息

市场以在线的方式给出新设备,决策者必须决定是否更新现有的设备,并确定何时更新?即在已知现在和过去的设备信息和订单信息而对未来信息一无所知情况下,决策如何更新设备完成陆续达到的订单需求.优化目标是使设备更新投资成本与设备运行成本总和最小.首先讨论了离线设备更新问题,给出了两种算法并分析了算法复杂度.其后,讨论了凸情形下在线设备更新问题,给出了临界值策略,得出了竞争比为6,证明该策略要优于原有的策略.

关键词：在线问题设备更新竞争分析竞争比

ORDERED WEIGHTED DISTANCE MEASURE

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Journal of Systems Science and Systems Engineering 2008年第4期17卷 432-445页

作者： Zeshui XU~1 Jian CHEN~2 1 school of economics and management,Southeast university,Nanjing,Jiangsu 210096,china 2.school of economics and management,tsinghua university,beijing,100084,china school of economics and management Southeast University Nanjing Jiangsu 210096 China school of economics and management Tsinghua University Beijing 100084 China

The aim of this paper is to develop an ordered weighted distance(OWD) measure,which is the generalization of some widely used distance measures,including the normalized Hamming distance, the normalized Euclidean distance,the normalized geometric distance,the max distance,the median distance and the min distance,***,the ordered weighted averaging operator,the generalized ordered weighted aggregation operator,the ordered weighted geometric operator,the averaging operator,the geometric mean operator,the ordered weighted square root operator,the square root operator,the max operator,the median operator and the min operator are also the special cases of the OWD *** methods depending on the input arguments are given to determine the weights associated with the OWD *** prominent characteristic of the OWD measure is that it can relieve(or intensify) the influence of unduly large or unduly small deviations on the aggregation results by assigning them low(or high) *** desirable characteristic makes the OWD measure very suitable to be used in many actual fields,including group decision making,medical diagnosis, data mining,and pattern recognition,***,based on the OWD measure,we develop a group decision making approach,and illustrate it with a numerical example.

关键词： Group decision making ordered weighted distance(OWD) measure aggregation operator

ENTROPY,INFORMATION,NOISE-STUDIES ON SYSTEM EVOLUTION

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Systems Science and Systems Engineering 2003年第1期12卷 2-12页

作者： Weimin ZHENGschool of economics and management tsinghua university. beijing 100084, china school of economics and management Tsinghua University

Universe, ecosystem, social system, etc. are evolving systems. The evolving processes of these systems have gradual small changes and rapid drastic changes with uncertainties under the constraints of environment. Systems, as a whole, are evolving toward complexity, diversity and variety with fluctuations and jumps. New order emerges from 'mutations'. The evolution is both chance-dependent and path-dependent. In this paper three basics: entropy, information and noise are emphasized with regard to system evolution which is a field that can give people wisdom to solve system problems with domain knowledge.

关键词： Entropy information noise

Interface Assets:Uncontrolled Resources of Competitive Advantage

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清华大学学报（哲学社会科学版） 2009年第S1期24卷 81-88页

作者： GUO Guang-rui(school of economics and management,tsinghua university,beijing 100084,china)

The purpose of strategic management is to produce knowledge of,to understand and to explain how firms achieve and sustain competitive *** the assumption that something beyond firm-controlled resources and industry structure contribute significantly to firm's competitive advantage as well,I propose a new construct of interface assets to integrate all the resources beyond firm-controlled resources and industry structure.I examine the attributes of interface assets and propose four assumptions about interface assets.I also develop a framework that illustrates how interface assets contribute to competitive ***,I conclude the article by discussing the theoretical and practical implication of the interface assets model.

关键词： interface assets competitive advantageAbout the Author: GUO Guang-rui,school of economics and management,tsinghua university,Ph.D.Candidate,research direction: strategic management,competitive advantage

Rural Credit Innovation:Experience of china

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清华大学学报（哲学社会科学版） 2009年第S1期24卷 89-96页

作者： HAO Xiu-qing(school of economics and management,tsinghua university,beijing 100084,china)

This paper is based on literature and interviews with the management of a leading agricultural firm which has developed a new credit rural *** uses the case study to generalize a new model of rural credit *** provides the government with an example on how to help solve rural credit problems and poverty *** also provides the banking industry with a new profit-making model,which benefits farmers at the same time as well.

关键词： Rural Credit Innovation Practice Agricultural Industrialization chinaAbout the Author: HAO Xiu-qing,school of Eonomics and management,tsinghua university,Ph.D.Candidate,research direction: technology innovation

SIMPLE INNOVATION OF FINANCIAL ASSET

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Journal of Systems Science & Complexity 2001年第1期14卷 81-90页

作者： ZHANG Shunming (school of economics and management, tsinghua university, beijing 100084, china) 清华大学北京 100084

This paper presents a simple two-period model of the innovation of financial asset by commission-revenue maximization exchange. The economic agents with meanvariance preferences take transaction costs in the process of trading the financial asset, the buying per-unit commission of the futures contract and the selling per-unit commission of the financial asset. The commission-revenue maximization exchange innovates financial asset.

关键词： Transaction costs general equilibrium commission-revenue maximization financial innovation.

PORTFOLIO SELECTION THEORY WITH STRICTLY POSITIVE SUPPLY OF RISKLESS ASSET

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Systems Science and Mathematical Sciences 2000年第4期13卷 344-357页

作者： ZHANG Shunming (school of economics and management, tsinghua university, beijing 100084, china) 清华大学经管学院北京 100084

This paper considers the portfolio selection theory with strictly positive supply of riskless asset. The portfolio selection problem is described as a quadratic program, then this problem is solved by the Kuhn-Tucker ... 详细信息

关键词： Portfolio selection strictly positive supply of riskless asset portfolio frontier Kuhn-Tucker condition method of artificial variable.

The Research on and Application of the Multi-regression Technique in the Course of the Marketing Decision-making of Enterprises

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厦门大学学报（自然科学版） 2002年第S1期41卷 221-222页

作者： QIU Xiao-dong, ZHAO Ping (school of economics & management, tsinghua university, beijing 100084 , china)

The reformation of the economy system has led the f un ctional department and status of the enterprises into a variable state. Under th e condition of the market economy, the kernel of the enterprises’ functional dep artment has diverted to that of marketing decision-making, which face to market and meet with the need of consumption. Assuredly, the kernel of marketing decis ion-making is to prognosticate the future market demand of the production of en terprises accurately, so that it can ensure and realize the maximum of the enter prises’ profit increase. Using empirical research and the multi-regression technique, this paper ana lyzes the enterprises’ production demand forecast of the GMC (Global management Challenge, held every year globally) and changes most of uncontrollable factors of demand forecast to the controllable ones of the enterprises. The method we us ed to forecast demand by using the multi-regression technique is as follows: 1. Look for the main factors which influence the demand of productions; 2. Establish the regression model; 3. Using the historical data, find the resolution of the correlative index an d do the prominent test; 4. Analyze and compare, regression, adjust parameter and optimize the regress ion model. Our method will make the forecast data closer to the actual prices of the future market requirement quantity in the production marketing decision-making of the enterprises and realize the optimizing combination and the working object w ith the minimum of the cost and the maximum of the profit. And it can ensure the realization of the equity maximum of the enterprises and increase the lifecycle of the production.

关键词： marketing decision-making demand forecast corr elative index multi-regression technique

Reduced analysis and confirmatory research on co-adaptability theoretical solution to conflicting events in construction engineering projects

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Science china(Technological Sciences) 2010年第2期53卷 480-485页

作者： HOU XueLiang1 , LU Mei2 & WANG Kai3 1 school of Business Administration, North china Electric Power university, beijing 102206, china 2 Department of Construction management, tsinghua university, beijing 100084, china 3 College of management, beijing Jiaotong university, beijing 100084, china 1. school of Business Administration North China Electric Power University Beijing 102206 China2. Department of Construction Management Tsinghua University Beijing 100084 China3. College of Management Beijing Jiaotong University Beijing 100084 China

The co-adaptability theoretical solution to conflicting events in construction engineering projects has three problems. First, the transformation of constraint conditions of theoretical solution is very difficult in practical engineering applications; second, some coefficients are difficult to be determined; third, there are overfull circular arithmetic operations involved in it. To resolve these problems, a new method to reduce the theoretical solution complications is proposed. By analyzing the operating mechanism of theoretical solution model, redundancies in the theoretical solution can be eliminated, and the ISM mapping with the co-adaptability solution can be set up. Based on this approach, a procedure to solve practical conflicting events in construction projects is established by replacing characteristic variables with mathematic variables. The research results show that the procedure can replace the co-adaptability theoretical solution effectively and solve practical conflicting events in construction projects.

关键词： construction project conflict theoretical solution reduced analysis ISM confirmatory research