OR in an OB World
OR In An OB World Blogspot. Ramblings about operations research, mathematical optimization and (mostly open-source) software..
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Best pages on Orinanobworld.blogspot.com
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Ramblings about operations research, mathematical optimization and (mostly open-source) software.
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I'm working on an optimization problem (coding in Java) in which, should various celestial bodies align the wrong way, I may need to compute the rank of a real matrix $A$ and, if it's less than full r...
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OR in an OB World: Accessing R Objects By Name
get and assign. The former takes a string argument and fetches the object whose name is contained in the string. The latter does the opposite, assigning an existing object to a variable whose name is...
Orinanobworld.blogspot.com news digest
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2 years
The maximum cut problem is one of those combinatorics problems that are deceptively easy to articulate and yet NP-annoying to solve. Given an undirected graph $G=(V,E)$, find a partition of $V$ into disjoint subsets $A$ and $B$ such that the set of edges...
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2 years
Smallest Polygon Containing A 2D Point Set
A question on OR Stack Exchange asked about an optimization model (specifically a MILP) for finding the "smallest hull" containing a finite set of points in the plane. The phrase "smallest hull" is rather fuzzy. In a follow up comment, the author of...
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2 years
A question ("Ordering of resources for maximizing success") on Mathematics Stack Exchange asks how to model the problem of sequencing workers under some unusual assumptions. You have 32 workers and 16 tasks. Each worker $i$ has a probability $w_i$ for...
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2 years
Before I get to what's on my mind, let me start by giving a shout out to the Resoundingly Human podcast from INFORMS. In each episode, host Ashley Kilgore interviews one or more OR academics or professionals about interesting recent work. Frequently...
Domain history
| Web host: | Google LLC |
| Registrar: | MarkMonitor Inc. |
| Registrant: | Google LLC |
| Updated: | June 29, 2023 |
| Expires: | July 31, 2024 |
| Created: | July 31, 2000 |
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