programming is one of the most frequently and successfully employed Operations Research techniques to managerial and business decisions.’’ Elucidate this statement with some examples. …2… …2… 4. Describe the transporation problem and give its mathematical model. Explain‚ by taking an illustration‚ the North-West Corner Rule‚ the Least Cost Method and the Vogel’s Approximation Method to obtain the initial feasible solution to a transportation problem. Discuss the various methods of finding initial
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interdiction scenario with his limited resources in order to minimize the covering of the demand points. A bi-level formulation is presented to model this two-player game problem. To solve this problem we use a combination of exact linear programming optimization technique and comprehensive enumeration. To reduce the computing time a heuristic approach based on local search is proposed. Keywords: Maximal Covering Location Problem (MCLP)‚ Multi- level interdiction‚ Fortification‚ Dummy facility 1. INTRODUCTION
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Problems with Multiple Objectives. Litman‚ T. (2012) Evaluating Public Transit Benefits and Costs. Best Practices Guidebook Liu‚ S. T. and Kao‚ C. (2004) Solving Fuzzy Transportation Problems Based on Extension Principles Torrens‚ P. M. (2000) Mathematical Models: How Land-use and Transportation Models Work Yu‚ X. and Luo‚ C. (2009) An Improved Graph Method for Linear Programming.
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13 INTRODUCTION TO QUERY OPTIMIZATION This very remarkable man Commends a most practical plan: You can do what you want If you don’t think you can’t‚ So don’t think you can’t if you can. —Charles Inge Consider a simple selection query asking for all reservations made by sailor Joe. As we saw in the previous chapter‚ there are many ways to evaluate even this simple query‚ each of which is superior in certain situations‚ and the DBMS must consider these alternatives and choose the one with
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Formulate this problem. Answer: (a) Linear programming focuses on obtaining the best possible output (or a set of outputs) from a given set of limited resources. The LPP is a class of mathematical programming where the functions representing the objectives and the constraints are linear. Optimization refers to the maximization or minimization of the objective functions. You can define the general linear programming model as follows: Maximize or Minimize Z = c1 x1 + c2 x2 +………….. +cn xn
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------------------------------------------------- Learning Objectives ↗ After completing this chapter‚ you should be able to ↗ Define the term management science. ↗ Describe the nature of management science. ↗ Explain what a mathematical model is. ↗ Use a mathematical model to perform break-even analysis. ↗ Techniques of Management Science ------------------------------------------------- 1.1 Problem Solving and Decision Making Problem solving can be defined as the process of identifying
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Mean-Variance Analysis Mean-variance portfolio theory is based on the idea that the value of investment opportunities can be meaningfully measured in terms of mean return and variance of return. Markowitz called this approach to portfolio formation mean-variance analysis. Mean-variance analysis is based on the following assumptions: 1. All investors are risk averse; they prefer less risk to more for the same level of expected return. 2. Expected returns for all assets are known. 3. The
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fast and slow moving consumables and repairable spares and service parts. ERP and CMMS integration supported and rapid solution deployment through the hosted solution. liz.thompson@armacsystems.com Service Planning and Optimization Suite - The SPO (Service Planning and Optimization) Suite of products is the industry leading solution for forecasting and planning of service parts. Customers include industry leaders such as Cisco System‚ KLA-Tencor‚ and Boeing‚ with return on investment acheived within
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Rural Valle Del Cauca‚ Colombia.” TIMS Studies in the Management Sciences 17‚ 331-359. Hogan‚ K.‚ and C. ReVelle (1986). "Concepts and Applications of Backup Coverage." Management Science 32‚ 1434-1444. Plane‚ D. R.‚ and T.E. Hendrick (1974). “Mathematical programming and the location of fire companies for the Denver fire department‚” Management Scinec Report Series‚ University of Colorado‚ Bolder‚ Colorado. (also published in Operations Research). Roth‚ R. (1969). "Computer Solutions to Minimum-Cover
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The objective of a process control system is to provide a statistical signal when assignable causes of variation are present “ if you can’t describe and measure it the you can’t control or improve it.” SPC a process used to monitor standards by taking measurements and corrective action as a product or service is being produced. Control chart a graphical presentation of process data over time. A process is said to be orperating in SC when only source of variation is common(natural) causes. The process
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