The article deals with the problems of the influence of informational, organizational and social aspects on managerial decision-making. A variant of the model for solving the problem of placing the fleet along the lin...
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The article deals with the problems of the influence of informational, organizational and social aspects on managerial decision-making. A variant of the model for solving the problem of placing the fleet along the lines of movement in a parametric setting is proposed. It is noted that the quality of a managerial decision is possible and necessary to be assessed even at the stage of its adoption, without waiting for the actual result to be obtained, using for this a set of characteristics that express the basic requirements for a decision. It was revealed that the results of environmental assessment determine the choice of methods for making and justifying decisions under various environmental conditions. In addition, the greater the certainty of the phenomenon under study, the greater the proportion of the formal side in decision-making and, conversely, the less certain what is happening, the worse the quantitative understanding of the phenomenon, the greater the proportion of creativity of the decision-maker. The conclusion is made about the possibility of making high-quality management decisions using parametric programming in conditions of uncertainty.
This paper describes the application of parametric Model Predictive Control to small processing units, in particular small Air Separation plants. Multiparametric optimization techniques are used to rigorously solve th...
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This paper describes the application of parametric Model Predictive Control to small processing units, in particular small Air Separation plants. Multiparametric optimization techniques are used to rigorously solve the MPC problem in two steps: an offline solution which generates a parametric mapping of the optimal control adjustments, and an online solution which reduces to a simple lookup operation. Because of the speed and simplicity of this lookup operation we are able to implement MPC in low-end computing devices such as PLCs, reaping the benefits of model-based control by implementing it at low cost in small plants where otherwise it would not be justified by the cost/benefit ratio.
Based on the principle of decomposition coordination and sensitivity analysis, a new model of economic dispatch of interconnected systems is presented in this paper, in which active powers of tie lines are considered ...
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Based on the principle of decomposition coordination and sensitivity analysis, a new model of economic dispatch of interconnected systems is presented in this paper, in which active powers of tie lines are considered as coordinating variables. Primal problem is decomposed into N individual subproblems of optimization and one simple coordination problem. The algorithm is based on quadratic programming with the idea of parametric programming and relaxation technique. The features of the proposed algorithm are little computation and reliable convergence for economic dispatch of interconnected system concerning safety constraints. Numerical test has been carried out for a real interconnected system composed of three systems. The test result shows that the model and the algorithm are feasible and effective.
In parametnc computing some parts of a problem description are given as funcuons of one or more parameters which vary over a range of values Any fgxed values of the parameters specify a problem instance, and the goal ...
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Recently, pathfollowing algorithms for parametric optimization problems with piecewise linear solution paths have been developed within the field of regularized regression. This paper presents a generalization of thes...
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Recently, pathfollowing algorithms for parametric optimization problems with piecewise linear solution paths have been developed within the field of regularized regression. This paper presents a generalization of these algorithms to a wider class of problems, namely a class of parametric piecewise quadratic programs and related problems. By using pathfollowing algorithms that exploit the piecewise linearity, the entire solution paths can be very efficiently computed. Possible applications include design parameter selection for identification methods such as Direct Weight Optimization.
In order to shorten the project time at a minimum overall project cost, a manager's trade-off strategy between time and cost must include two level of action in a project management; at activity level first, then ...
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In order to shorten the project time at a minimum overall project cost, a manager's trade-off strategy between time and cost must include two level of action in a project management; at activity level first, then the overall project level. At activity level, all possible options of an activity must be examined to ensure the selective options as a strategy action input is effective. At the overall project level, all effective options input as alternatives of the competition selection process, it must have impact on the duration. Also all the solutions along the time-cost trade-off curve are ensured to reduce time by using the least expensive resource. Traditional time-cost tradeoffs algorithm focuses on problem solving procedure, seldom concern computationally tractable need for management. This paper rewrites the mathematical programming in term of manageable decision variables, which will be easy to unfold the tradeoffs behavior of time-cost. How each optimal project time-cost solutions were attained via different combinations of reducing time for activities was showed.
A proof of the validity of Markowitz's critical line method is given for a more general situation than discussed by Markowitz. Next for the Markowitz case with a positive definite covariance matrix explicit expres...
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Uncertainty theory has been initiated in 2007 by Liu, as an axiomatically developed notion, which considers the uncertainty on data as a belief degree on the domain expert's opinion. Uncertain linear optimization ...
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