Operations Research

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  • land O links

    Punk Rock Operations Research
    Laura McLay
    3 Jul 2014 | 7:04 am
    Here are a few links for your holiday weekend reading: How to make mass transit sustainable once and for all by @trnsprttnst Why commute times don’t change much even as a city growsby @e_jaffe Blogging: is it good or bad for journal readership? The Incidental Economist weighs in. Harvard Business Review: Instinct can beat analytical thinking The hot hand fallacy: why we persist in seeing streaks The myth of the hot hand fallacy by @JSEllenberg Sports teams are immersed in “big data” Speaking of big data, an entire tumblr is devoted to cheesy pictures of Big Data (HT…
  • The Upcycle

    greenOR
    or4green
    26 Jun 2014 | 11:20 am
    I recently finished reading The Upcycle by William McDonough and Michael Braungart.  It is the follow-up to their inspiring 2002 book Cradle to Cradle, which I wrote about in one of the first posts on this blog in 2007. The Upcycle extends some of the key concepts from Cradle to Cradle such as its critical take on recycling as “downcycling”, the elegant notion of designing materials to be easily separated back into “biological nutrients” and “technical nutrients”, and more.  It takes the philosophy of the earlier book about solving sustainability challenges through design…
  • Thanks to the National Science Foundation for Great Research Experiences for Undergraduates (REU) Program

    RENeW
    22 Jul 2014 | 7:47 am
    I returned around 1AM from Colorado where I had spent a few days visiting my daughter who is taking part in a 10 week National Science Foundation (NSF) Research Experiences for Undergraduates (REU) program at the University of Colorado Boulder.This was my first time in Boulder and I loved the vibe there, the natural beauty, the friendliness of the people, and, of course, the University of Colorado. I had been to Colorado multiple times for both conferences and visiting relatives but this was my first time in Boulder. The specific project that my daughter, Alexandra, is working on is:…
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    Punk Rock Operations Research

  • land O links

    Laura McLay
    3 Jul 2014 | 7:04 am
    Here are a few links for your holiday weekend reading: How to make mass transit sustainable once and for all by @trnsprttnst Why commute times don’t change much even as a city growsby @e_jaffe Blogging: is it good or bad for journal readership? The Incidental Economist weighs in. Harvard Business Review: Instinct can beat analytical thinking The hot hand fallacy: why we persist in seeing streaks The myth of the hot hand fallacy by @JSEllenberg Sports teams are immersed in “big data” Speaking of big data, an entire tumblr is devoted to cheesy pictures of Big Data (HT…
  • an analysis of punk rock OR on twitter

    Laura McLay
    13 Jun 2014 | 6:58 am
    I wanted to analyze my tweets, so I did a little programming with the twitteR package on R, which helped me download my last 781 tweets or so (about 10% of my tweets) by calling the twitter API. Here is a wordcloud of the things I tweet about with a few common words like “the” and “that” removed. It looks like I spend a lot of time tweeting about #orms and Wisconsin to @jefflinderoth! A wordcloud of things I tweet about.   My 12 most favorited and/or retweeted tweets (of the last 781): Physicists on CS: "Programming, what if it's all just a fad?"…
  • engineering achievements of the 20th century

    Laura McLay
    10 Jun 2014 | 6:55 am
    Yesterday, I blogged about NAE grand challenges and how operations research can contribute to those grand challenges. You may find the list of 20th century engineering achievements interesting. The NAE’s full list of engineering achievements with an explanation for each item, can be found at www.greatachievements.org. Here is the brief list courtesy of the NAE publication The Bridge. The list is ordered according to importance. Electrification-Vast networks of electricity provide power for the developed world. Automobile-Revolutionary manufacturing practices made cars more reliable…
  • engineering grand challenges that operations research can help solve

    Laura McLay
    9 Jun 2014 | 12:12 pm
    In May, the report Operations Research – A Catalyst for Engineering Grand Challenges was released to the National Science Foundation [grant info here]. The report outlines operations research grand challenges for the next century, and they reflect the National Academy of Engineering’s list of grand challenges [Link]. This committee worked on a project funded by the NSF, and it was a great idea for highlighting the importance of operations research in relation to other STEM fields with regard to solving important societal problems as well as for prioritizing directions for our…
  • health care is a systems engineering problem

    Laura McLay
    6 Jun 2014 | 7:34 am
    A new report by the  President’s Council of Advisors on Science and Technology (PCAST) is all about how health care needs systems engineering solutions [Press release here]. The report entitled Better Health Care and Lower Costs: Accelerating Improvement through Systems Engineering outlines the various ways in which industrial and systems engineering can help. Several OR methods and tools are listed in the report, including operations management, queuing theory, simulation, supply-chain management. Rising healthcare costs are the motivation for this report. The United States spends more…
 
  • add this feed to my.Alltop

    greenOR

  • The Upcycle

    or4green
    26 Jun 2014 | 11:20 am
    I recently finished reading The Upcycle by William McDonough and Michael Braungart.  It is the follow-up to their inspiring 2002 book Cradle to Cradle, which I wrote about in one of the first posts on this blog in 2007. The Upcycle extends some of the key concepts from Cradle to Cradle such as its critical take on recycling as “downcycling”, the elegant notion of designing materials to be easily separated back into “biological nutrients” and “technical nutrients”, and more.  It takes the philosophy of the earlier book about solving sustainability challenges through design…
  • Tournaments and Logs

    or4green
    20 Mar 2014 | 8:19 am
    With the NCAA basketball tournaments kicking off, here is a post about an exercise I put together for our pre-calculus class last semester on tournaments and logs.  I find a lot of students do not have a good intuitive grasp of the logarithm function and why it might be useful.  This exercise actually originated when my son was around 5 and began racing his toy cars.  (See the video above – it was hard to determine the winner by eye so we filmed it and ran the finish in slow motion; you can freeze-frame it at around 0:02 to see who won.)  He started collecting…
  • Visualizing LPs in Mathematica

    or4green
    9 Feb 2014 | 2:48 pm
    I’m teaching undergrad linear optimization this semester.  Mathematica can be helpful for visualizing LPs.  It also has some LP solving capabilities.  (Special thanks on this post goes to my colleague Russ Rushmeier, with whom I’m teaching the course, for the example LP, some of the commands, and great discussions.) Here is the example LP we’ll use: max z = x1 + x2 + x3 subject to: 3 x1 + 2 x2 + x3 ≤ 6 x1 – x2 + x3 ≤ 1 x1 + 2 x2 +  x3 ≤ 4 x1 ≥ 0, x2 ≥ 0, x3 ≥ 0. First we’ll plot the feasible region, which is 3-dimensional, using the…
  • Call for proposals: Connecticut Campus Sustainability Conference

    or4green
    2 Jan 2014 | 6:18 am
    Check out the call for proposals for the Connecticut Campus Sustainability Conference on April 25th, 2014 at Middlesex Community College! You can submit a presentation, workshop or panel, and students can submit posters as well!     Friday, April 25, 2014. 8:00am until 4:00pm in EDT. Middlesex Community College, 100 Training Hill Road, Middletown, CT Are you, your students, faculty or staff involved with campus sustainability? If so please submit a proposal using the instructions below. We are interested in sharing best practices, solutions, and lessons learned by higher education…
  • Return of the Repair Shop?

    or4green
    27 Dec 2013 | 10:06 am
    An all-purpose repair shop ran for a month in the Inwood section of Manhattan.  “Pop Up Repair” was set up and staffed by theater technicians who would repair whatever items were brought in.  They also ran fix-it workshops. This is a great sustainability angle that diverts waste and avoids new production, with great potential to get members of the local community involved.  Check out this video about the operation: Their site isn’t too far from where I spotted Michael Scheafe’s wonderfully repaired and restored vintage toasters.  See this greenOR page for more on…
  • add this feed to my.Alltop

    RENeW

  • Thanks to the National Science Foundation for Great Research Experiences for Undergraduates (REU) Program

    22 Jul 2014 | 7:47 am
    I returned around 1AM from Colorado where I had spent a few days visiting my daughter who is taking part in a 10 week National Science Foundation (NSF) Research Experiences for Undergraduates (REU) program at the University of Colorado Boulder.This was my first time in Boulder and I loved the vibe there, the natural beauty, the friendliness of the people, and, of course, the University of Colorado. I had been to Colorado multiple times for both conferences and visiting relatives but this was my first time in Boulder. The specific project that my daughter, Alexandra, is working on is:…
  • The Summer Edition of the Supernetwork Center Newsletter is Out

    14 Jul 2014 | 2:54 pm
    We are delighted to announce that the 2014 summer edition of The Supernetwork Sentinel, the newsletter of the Virtual Center for Supernetworks at the Isenberg School of Management at UMass Amherst,  is now available.As the Director of the Virtual Center for Supernetworks, it is always a pleasure to produce this newsletter and to share it with our many center supporters, colleagues, and collaborators. Its been a very exciting couple of months and, as I always say, it takes a great team to accomplish as much as we manage to do, and to have such an enjoyable time doing it whether it entails…
  • Soccer Won - the 2014 World Cup

    13 Jul 2014 | 4:59 pm
    After Germany beat Argentina in the 2014 FIFA World Cup final today with Germany being crowned the champion of this monthlong competition in which 32 countries competed with their soccer teams, I took a walk.I needed to process this World Cup, which I think was the best ever in terms of the drama, athleticism, surprises, and outcome. I have written two previous posts on this World Cup.Seeing Gotze score with an amazing goal for Germany with the result that Germany won 1-0 against Argentina in overtime was quite special. The ball he bounced off his chest and then kicked it into the net.During…
  • Living in a Nonlinear World

    11 Jul 2014 | 5:18 am
    This past week there have been two big events marking milestones in the lives of major contributors to our understanding of nonlinear phenomena - one very sad and one happy.I heard the sad news via a tweet by Professor Laura McLay @lauramclay - Professor Harold Kuhn of Princeton University passed away on July 2, 2014 at the age of 88.  The Nobel laureate Al Roth of Stanford wrote this tribute to this co-founder of nonlinear programming and brilliant game theorist, who, interestingly, was a mathematician but had an appointment in Princeton's Economics Department.Photo above of Harold…
  • We Still Love you, Brazil!

    8 Jul 2014 | 4:36 pm
    Today's semifinal 2014 World Cup match of Germany vs Brazil, will go down in sports and soccer history  and I suspect it also congested the Twittersphere.As the announcer stated, we watched with morbid fascination, with Germany scoring goal after goal, effortlessly, until the score reached 7-0 in Germany's favor.Gratefully, and with a relief to all spectators (even my German friends), Brazil finally managed a goal with the result that today's final score was 7-1. Germany moves on to the final game which will be played on Sunday. As for who it will play against, we will find out tomorrow…
 
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