Skip to content

{ Monthly Archives } March 2009

Closed Loop Supply Chains

There is a new paper on the OR Forum by Dan Guide and Luk Van Wassenhove that looks at the research trajectory of “Closed Loops Supply Chains”.  Closed loop supply chains are supply chains where there is at least as much interest in getting things from the customer to the supplier as vice versa.  Sometimes […]

I’m ready for my close-up Mr. DeMille, the Operations Research Version

If all goes according to plan, the members of INFORMS will receive an email over the next two days.  The email outlines some reasons why you should attend the upcoming INFORMS Practice Meeting (note that you need to register by April 1 in order to get a discount on the registration fee).  Part of the […]

Much more on the NCAA Tournament

In the hyper-competitive world of operations research blogging, needing to teach a class can put you hopelessly behind.  The Blog-OR-sphere is abuzz with pointers to the CNN article on computer models for predicting success in the upcoming NCAA tournament featuring Joel Sokol (see the video here).  See the blog entry at Punk Rock Operations Research […]

Tweeting the Tournament

Following up on a post from Punk Rock Operations Research, let’s use a hashtag for OR people twittering about the tournament.  I think “#ncaa-or” should work nicely.  Follow that tag at or directly here.  And start your tweets with #ncaa-or if you want to be part of the group. Thanks to twitterers hakmem and […]

Are you ready for some College Basketball?

Joel Sokol, Paul Kvam, and George Nemhauser have a ranking called LRMC (Logistic Regression/Markov Chain) for college basketball.  This weekend is when the NCAA selects teams for its championship.  You can check out the current rankings to see whether your favorite team deserves to be in the tournament.  And, once the bracket is published, LMRC […]

Bernie Madoff and Data Visualization

If you are like most people, when you hear of Bernie Madoff’s Ponzi scheme ripping off investors to the tune of $50 billion, you might think “Oh those poor investors”, or perhaps “Just the rich ripping off the other rich”.  If you do research in a business school, you might wonder about the institutional controls […]

Twitter for Operations Research

There are tons of “Web 2.0” (or 2.1, or whatever) applications out there that I don’t really understand how to use.  I know I have 154 connections on LinkedIn, but I don’t know why.  I have received a flurry of Plaxo requests, but I can’t tell if that is more or less useful than LinkedIn.  […]

Back at the IMA

I am at the Institute for Mathematics and its Applications at the University of Minnesota.  This brings back very fond memories.  I was a postdoc here 21 years ago at the start of my career when they had a Special Year on Applied Combinatorics.  As I recall there were 10 postdocs that year:  nine combinatorialists […]

Kindle and Math

Added January 6 2012.  Note that this post refers to the kindle circa 2009.  See this discussion on reddit for more recent (late 2011) information.  Unfortunately I no longer use a Kindle so I cannot provide any updated information. The new Kindle from Amazon is out, and it is receiving a lot of press.  Aurelie […]