Yet Another Math Programming Consultant

I am a full-time consultant and provide services related to the design, implementation and deployment of mathematical programming, optimization and data-science applications. I also teach courses and workshops. Usually I cannot blog about projects I am doing, but there are many technical notes I'd like to share. Not in the least so I have an easy way to search and find them again myself. You can reach me at erwin@amsterdamoptimization.com.

Thursday, January 29, 2015

MS Visual-R

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Microsoft has purchased Revolution (an R company). Here are some reactions: http://www.r-bloggers.com/microsoft-acquires-revolution-ana...
Monday, January 26, 2015

The Hostile Brothers Problem (3)

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Follow up on http://yetanothermathprogrammingconsultant.blogspot.com/2015/01/the-hostile-brothers-problem-1.html and http://yetanothermathp...
Thursday, January 22, 2015

The Hostile Brothers Problem (2)

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In http://yetanothermathprogrammingconsultant.blogspot.com/2015/01/the-hostile-brothers-problem-1.html we discussed how to find local optim...
3 comments:
Tuesday, January 20, 2015

The Hostile Brothers Problem (1)

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Another quadratic problem that has some interesting features – this is an old favorite of mine. The problem is stated as follows: a patriarc...
1 comment:
Wednesday, January 14, 2015

Pyomo and GAMS

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Nice Pyomo introduction: https://www.youtube.com/watch?v=cjMkVHjhSBI A few small mistakes wrt GAMS: GAMS does not have a complements ...

Word vs LaTeX

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A software usability study comparing Word and LaTeX: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0115069 . They claim W...
Friday, January 9, 2015

Scheduling as non-convex MIQP

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The following model tries to assign jobs to ‘bins’ (bins can be interpreted as workstations) in such a way that the remaining space in the b...
3 comments:
Wednesday, January 7, 2015

DropSolve

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IBM has a cloud-based widget: just drop your input files and get a solution file back. http://www-969.ibm.com/software/analytics/docloud...
Saturday, January 3, 2015

Stopping criteria for meta-heuristics

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When running a really small non-convex MIQP problem with GAMS+Localsolver I see: LocalSolver 5.0 (Win64, build 201411...
7 comments:
Friday, December 19, 2014

Convert GAMS to LaTeX

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Work in progress. This is automatically generated from compiled GAMS code. Part of a documentation tool to generate documentation for very l...
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Erwin Kalvelagen
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