LP in statistics: The Dantzig Selector
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View ArticleRounding inside an optimization model
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View ArticleModeling surprises
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Another very small but very difficult global NLP model
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Inflation is a difficult concept for many
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View ArticleRevised Simplex LP Solver written in GAMS
I am teaching some GAMS classes, and a question arose: "How does the Simplex method work?" It's not easy to answer in a few sentences, but I want to touch upon the concept of a basis anyway. Once you...
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Circle Packing and HTML reporting
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N-queens and solution pool
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Multiple Solutions in Minimum Spanning Tree example
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Solving DEA Models with GAMS
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CSV readers mutilating my data
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Prevent Loops in GAMS
 This book [1] on DEA models has an accompanying website with all the GAMS models [2]. Of course, I'll be doing some nitpicking on the GAMS code. In some of the GAMS code, unneeded loops are used. From...
View ArticleGAMS 48 tests
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View ArticleEquity in optimization models
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View ArticleNon-convex Quadratic Integer Programming
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View ArticlePuLP surprises
Formulating optimization models inside traditional programming languages such as Python is very popular. The main tool the developers use to make this possible is operator overloading. There are cases,...
View ArticleSorting using a MIP model
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Network models with node capacities
Min-cost flow network model table.xyz { table-layout: fixed; border-collapse: collapse; margin-left:auto; margin-right:auto; } table.xyz th, table.xyz td { border: 1px solid black; } table.blueTable {...
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Programming vs Modeling
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Small MIP, proving optimality is difficult
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View ArticleWolf, goat and cabbage problem: MIP and network model
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Towers of Hanoi: inventory and network formulation
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