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A 0-1 quadratic programming model is presented for solving the strategic problem of timing the location of facilities and the assignment of customers to facilities in a multi-period setting. It is assumed that all parameters are known and, on the other hand, the quadratic character of the objective function is due to considering the interaction cost incurred by the joint assignment of customers belonging...
The main focus of research in algorithm visualization has lately been on pedagogical aspects, but graphical features also deserve be studied. This paper presents an evaluation conducted with students on the convenience of including several graphical elements (labels for identifiers, arrows and shadows) in the visualization of an iterative algorithm. Students performed two tasks: to answer an opinion...
In Computer Science Education there is a tendency to implement active learning paradigms where students are the focus of the educational process. An instantiation of these learning methods are gaming environments. We present ProGames, a system for learning programming skills through a leveled set of visually-attractive and interactive programming games in Greenfoot, categorized by student's likes,...
When teaching in university courses, one of the main problems is the students' lack of motivation for everyday study. Learning management systems (LMS) provide a set of tools that students must handle to follow the course, but usually students need additional aid to effectively mastering these tools. We present here Merlin-Know, a new module for the Moodle LMS to help students do extra work and reviewing...
The Multi-period Incremental Service Facility Location Problem, which was recently introduced, is a strategic problem for timing the location of facilities and the assignment of customers to facilities in a multi-period environment. Aiming at finding the strongest formulation for this problem, in this work we study three alternative formulations based on the so-called impulse variables and step variables...
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