The Variable Neighborhood Search (VNS) metaheuristic is based on systematic changes in the neighborhood structure within a search, and has been succesfully applied for solving various discrete, global optimization problems, and related tasks. This Call for Papers addresses the recently growing interest of the research community working on the VNS methodology. This special issue of the Internati...

In this paper, we report on the current developments of our Mirosot Robot Soccer team, the “Robocoasters”, in preparation for the FIRA Robot World Cup 2002 in Korea. We describe a number of unique enhancements to both the vision systems and the control system. Vision enhancements include a unique shape recognition system, expanded from recognition of three shapes to five shapes for the middle l...

This paper presents an overview of a humanoid soccer robot, build out of readily available hardware. The system architecture is covered in detail thereby enabling the reader to build a starter system for entering bipedal, humanoid soccer competitions. The structure of motion-pages of a Bioloid robot is presented. A vision algorithm to detect goal posts, used for SelfLocalisation of the robot, i...

Dynamic pricing of commodities without knowing the exact relation between price and demand is a muchstudied problem.Most existing studies assume that the parameters describing themarket are constant during the selling period. This severely reduces their practical applicability, since, in reality, market characteristics may change all the time, without the firm always being aware of it. In the p...

This paper describes two major humanoid robotic competitions: the RoboCup Humanoid League and the FIRA HuroCup, which were both introduced in 2002. Even though both competitions have the final goal of creating a team of robots that can compete with humans in a soccer math, the two associations focused on different intermediate goals. RoboCup focused on interesting soccer matches between teams o...

The problem of the aggregation of multi-agents preference orderings has received considerable attention in the scientific literature, because of its importance for different fields of research. Yager (2001) proposed an algorithm for addressing this problem when the agents’ importance is expressed through a rank-ordering, instead of a set of weights. The algorithm by Yager is simple and automata...

The behaviour of poker players and sports gamblers has been shown to change after winning or losing a significant amount of money on a single hand. In this paper, we explore whether there are changes in experts’ behaviour when performing judgmental adjustments to statistical forecasts and, in particular, examine the impact of ‘big losses’. We define a big loss as a judgmental adjustment that si...

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We consider a family of optimal control problems where the control variable is given by a boundary condition of Neumann type. This family is governed by parabolic variational inequalities of the second kind. We prove the strong convergence of the optimal controls and state systems associated to this family to a similar optimal control problem. This work solves the open problem left by the autho...

While embodied robotic applications have been a strong influence on moving artificial intelligence toward focussing on broad, robust solutions that operate in the real world, evaluating such systems remains difficult. Competition-based evaluation, using common challenge problems, is one of the major methods for comparing AI systems employing robotic embodiment. Competitions unfortunately tend t...