Using the theory of neighboring optimal feedback control (NOFC), we can significantly reduce the cost of control schemes generated by the method of direct collocation and nonlinear programming (DCNLP). Combining these...
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With the development of the mobile Internet, 'photographing to make money' APP came into being. This paper studies the pricing problem of 'photographing to make money' APP tasks in the Internet era. Th...
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With the development of network technology and electronic information technology, the nonlinear programming problem (NPP) with inequality constraints in the BD framework has become one of the research hotspots and one...
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Genetic algorithms have unique advantages in dealing with optimization problems. In this paper the main focus is on the improvement of a genetic algorithm and its application in nonlinear programming problems. In the ...
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To optimize an interplanetary trajectory for low- thrust spacecraft, direct collocation can be applied to reformulate the original optimal control problem into a large nonlinear programming (NLP) problem, This paper p...
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The possibility of non-linear programming method for the analysis of dissipative systems with con centrated parameters tained non-reactive elements and the use of this approach for the calculation of many arms of rive...
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Based on the characteristic of the fabrication of the iron, when the caliber of the outside circumference of the iron was 650 mm, a nonlinear programming model was builded. The model was carried out by Lingo, the opti...
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One of the most effective numerical techniques for the solution of trajectory optimization and optimal control problems is the direct transcription method. This approach combines a sparse nonlinear programming algorit...
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ISBN:
(纸本)0877033803
One of the most effective numerical techniques for the solution of trajectory optimization and optimal control problems is the direct transcription method. This approach combines a sparse nonlinear programming algorithm with a discretization of the trajectory dynamics. This paper describes the application of a sparse nonlinear programming method to the solution of a low thrust orbit transfer. The vehicle dynamics are defined using equinoctial coordinates, and solutions are presented for transfers which require large changes in the orientation of the orbit plane. The resulting problem involves 4352 variables, and 868 degrees of freedom, with over 3484 very nonlinear constraints.
In this paper, the automatic pricing and replenishment decision-making problem for vegetable category goods is studied. Using the K-means clustering model, random forest, LSTM long and short-term memory model, and non...
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nonlinear programming problems (NLP) solvers require some level of flexibility. This flexibility must be supported on the method choice, on the parameters specification and on the problem modelling. Few of the tools c...
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ISBN:
(纸本)9789639799455
nonlinear programming problems (NLP) solvers require some level of flexibility. This flexibility must be supported on the method choice, on the parameters specification and on the problem modelling. Few of the tools currently available can address this level of flexibility. This paper presents an open-source, complete and easy tool, named NLPToolbox, to achieve this purpose. Given its open-source characteritics, it offers the opportunity to study nonlinear programming in an iterative way: by showing how the methods works and allowing all kinds of specifications: methods and parameters. Altough being a work continually in progress, it is already usable. It is currently used in teaching nonlinear programming and solving some kinds of NLP problems, like clustering and Support Vector Machine classification. Its future lies on the optimization of the tool itself, improving the precision of the numeric algorithms and integrating new methods.
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