## Using logvrp.com when introducing students to VRP

In my recent course on transportation and distribution systems for undergraduate business students I used a week talking about vehicle routing problems (VRP). Since their math skills aren’t that high the focus was not on algorithms instead I tried to talk about the general structure of the problem. Here the site logvrp.com is very good and provide a way of making a realistic problem case. Logvrp is a web based vehicle route planner software cable of minimize transportation costs and to minimize fleet mileages. It uses Google maps to display routes and trips. Moreover, it supports many different VRP problems. Current two heuristics are implemented and can be run simultaneously on a problem instance. This is a good thing since the students can see that the heuristics behave differently on the same instance and that there is no general winner. I created an exercise about a small-sized company located in […]

## Transportation and distribution systems

During the fall 2011 I have been teaching the course “Transportation and distribution systems” an optional course for undergraduate students. We have considered various topics within transportation such as its role in the global economy, modal choice, 3PL, VRP problems, flow problems, airline management, ITS, green logistics etc. Each week the students was given an exercise where they in most cases had to formulate and solve an mathematical programming model. I also have tried to introduce CPLEX OPL studio to them with minor success. Mostly they like to formulate their models in Excel and with OpenSolver it is possible even for quite large models.

## First Young Danish OR Conference (YDOR)

The 28. November 2011 I was participating in the first YDOR conference at Aarhus University, Business and Social Sciences. First, a big thank to the organizer Sanne for still considering me as young. Next a thank to all the participants which all presented interesting topics. It was quite interesting

## Teaching large classes

Yesterday I participated in a short course about how to teach large classes. Focus was on how to align teaching for constructive learning, collaborative learning techniques and other active learning tricks. The main point can be summarized in this statement “If students are to learn desired outcomes in a reasonably effective manner, then the teacher’s fundamental task is to get students to engage in learning activities that are likely to result in their achieving those outcomes… It is helpful to remember that what the student does is actually more important in determining what is learned than what the teacher does.” (Shuell, 1986: 429)

## Teaching Management Science

Just finished my last Management Science lecture for this semester. This is the first time I theach this introductory course to Business Students. Topics are linear and integer programming, goal programming, simulation and network models.

## Det optimale udskiftningstidspunkt for en malkeko

En populærvidenskabelig artikel er netop udkommet i OrBit omkring min MDP model for udskiftning af malkekvæg. “Det optimale udskiftningstidspunkt for en malkeko“, L.R. Nielsen and E. Jørgensen, OrBit, 17, 14-16 (2010).

## Quantifying walking and standing behaviour of dairy cows using a moving average based on output from an accelerometer

The research paper “Quantifying walking and standing behaviour of dairy cows using a moving average based on output from an accelerometer” have been accepted for publication in Applied Animal Behaviour Science. It presents research from my time at DJF where we use a moving average to predict walking and standing behaviour of dairy cows.

## EURO Lisbon July 2010

I am currently participating in the EURO conference in Lisbon. I gave a talk about “Optimal replacement policies for dairy cows” yesterday. The conference has approximately 2300 participants and many streams.

## Converting a multidimensional index to a single unique id

I have written a small note about mapping a multidimensional index into a unique id. An unique id might be useful e.g. when having multiple state variables in an Markov decision process. Here each state at a stage may be identified using the id.

## Seminar in Business Studies – First Experience

The from February to May this year I have been teaching in “Seminar in Business Studies” a bachelor course (HA – 4. semester). The course represents a teaching and form of learning where a group of 12 students with one or more teachers discusses selected issues and problems in management science. First the student should write a 10 page report on a specific subject. The report should provide the possibility of in-depth studies of theories, models and methods in management science. While writing the report he can use the assigned advisor for at most 1.5 hours. Second the student, 2 weeks after delivering the report, should give a 10 minutes presentation about their report. Afterwards there is time for 30 minutes of discussion and last 5 minutes for giving a grade. I was assigned 59 students in 6 groups. In 4 of the groups I was the only teacher. In […]