Goalkeeper robot in the league of humanoid robots has a key role so that its wrong decision and incorrect jump can cause changes in the result of a competition. This paper presents a method to detect the ball on the ground during the match, determine the coordinates of the ball with respect to the robot, calculating the speed and direction of the ball and eventually the time and place that the ...

People can often anticipate the outcome of another person's actions based on visual information available in the movements of the other person's body. We investigated this problem by studying how goalkeepers anticipate the direction of a penalty kick in soccer. The specific aim was to determine whether the information used to anticipate kick direction is best characterized as local to a particu...

This paper reports an approach toward engineering an evolving robot behavior for a role of a goalkeeper. In the course of our study of the problem, we developed a hand coded controller as well. The method of learning we used is emotion based self-reinforcement learning. The training of the learning robot is made by a non-didactic trainer which performs random shooting. We present also a typical...

The aim of this study was to identify which variables were the best predictors of success in futsal ball possession when controlling for space and task related indicators, situational variables and the participation of the goalkeeper as a regular field player or not (5 vs. 4 or 4 vs. 4). The sample consisted of 326 situations of ball possession corresponding to 31 matches played by a team from ...

The game of football demands new computational approaches to measure individual and collective performance. Understanding the phenomena involved in the game may foster the identification of strengths and weaknesses, not only of each player, but also of the whole team. The development of assertive quantitative methodologies constitutes a key element in sports training. In football, the predictab...

Small-sided games (SSGs) are spontaneous forms of specific training where exercise intensity can be manipulated by modifying external factors. To ensure suitable usage of small-sided games in practice, we have to know which variables can influence internal responses and external loads. The aim of the present study was to determine the influence of presence of a goalkeeper and the pitch size on ...