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Hello World
Tatu is the Brazilian name for armadillo, an American animal that lives underground. Just though that tatu-search would sound funny for a dual algorithm that tries to solve a minimization problem.
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Optimizing Public Policies for Urban Planning
Another possible title would be “Marrying an urban planner up to her research problems”. It all happened when I started hearing my fiancée explaining the problems of Brazilian housing policy and ended...
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Integer Programming is Smarter than Sexy
I’ve just read a funny post from Michael Trick about the sexiness of Integer Programming.He made some points about how good IP modeling is not as straightforward as one might think.I would like to add...
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Revisiting operations research elements – part I: problem, model and solution
People often admit that they have just discovered to know nothing about something they thought they knew. I felt that about terms like “problem”, “model” and “solution” during the last year. At a first...
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How can Cupid use Operations Research?
John loved Therese who loved Raymondwho loved Mary who loved Joachim who loved Lilywho loved nobody.John left to the United States, Therese to a convent,Raymond died in a crash, Mary became an old...
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Making it for 2014 Cup and 2016 Olympics: Scheduling Tasks with CP, part I
Recently, Brazil volunteered to host the 2014 World Cup and the 2016 Summer Games in Rio de Janeiro. Personally, I think that those guys that put our name on the candidacy lists are nuts. Indeed,...
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Modeling Local Politicians with Global Constraints; or Making it for 2014 Cup...
As Jerome Valcke predicted, 2011 has only started in Brazil about a couple of weeks ago when carnival was over. For those who do not believe, it is just a matter of checking that in the past weeks...
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Euler’s number is 1 and not that irrational crap: 2.71828…
Professor says to have found error in mathematical symbology (source url – in Portuguese) It’s interesting, but there are things in life that does not have explanation and what we will tell in this...
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Brazilian IT (and OR) salaries, and our rickshaw-like cars
Contemporary economy and the rickshaw-like cars The first elected president after the military dictatorship in Brazil was quite a controversial figure. He was responsible for the first steps towards...
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Drug discovery optimization: a meeting point for data mining, graph theory...
How can I help finding the best compound to save a life? In a glance, the answer is what research in optimizing drug design is about. Its main goal is to cheapen and speed-up drug development whilst...
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Revisiting operations research elements – part II: results, research… and...
This post resumes the discussion about key concepts of operations research started previously in this blog. However, instead of focusing only on the meaning of terms, this time I’d like to discuss...
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How Analytics makes Operations Research the next big thing
Engineers enjoy laughing at buzzwords that they don’t sell. Despite that, some buzzwords represent important paradigm-shifts. They might not propose any technical novelty but they do contribute to...
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Constraint Programming and Adaptiveness at CPAIOR
On May 25th, I will present an extended abstract at CPAIOR, which will be held in Berlin next week. It is about characterizing adaptive search methods for constraint programming. I have had the support...
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First impressions from CPAIOR 2011
CPAIOR is an interesting environment for gathering researchers from diverse but close areas, ranging from mathematical programming to artificial intelligence. That reflects the 4 organized master...
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Which problems could a million CPUs solve? (More about CPAIOR)
I’ve just watched a presentation from Thorsten Koch entitled “Which Mixed Integer Programs could a million CPUs solve?” at CPAIOR 2011. Like any presentation of a challenging research topic would be,...
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Some concluding remarks about CPAIOR
CPAIOR 2011 is coming to its end. Despite not being the first international conference that I have ever been, it was the most interesting so far. Among the reasons for that is the fact that it is very...
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The model as a spell and the solver as a wand: O.R. magic for a muggles’ world
Who cares about O.R. magic? When I said once to my sister that my former job was to put more fridges on each truck to save delivery trips (something that many of my colleagues consider a joyful job),...
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When the Network becomes Social: Small World Graphs and O.R.
Mathematicians have been studying graphs for a long while. Sociologists found out that some of them explain how we interact. Indeed, social networks just make the connection more evident to anyone. In...
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Offshore Resources Scheduling and the Brazilian Symposium on Operations Research
On August 17th, I will present an article about what I’ve been working on my M.Sc. thesis at the Brazilian Symposium on Operations Research (shortened SBPO in Brazil). This article is authored by me...
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When Brazil excels for real (or floating point): International Olympiads in...
One gold and three bronze medals out of four competitors: that would be routine for some countries, but it meant a lot to Brazil in the 2011 edition of IOI. It was the best result of the country ever,...
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