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Sökning: WFRF:(Calvo A) > Högskolan i Halmstad

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1.
  • Antonelo, Eric Aislan, et al. (författare)
  • Intelligent autonomous navigation for mobile robots : Spatial concept acquisition and object discrimination
  • 2005
  • Ingår i: 2005 IEEE International Symposium on Computational Intelligence in Robotics and Automation, Proceedings. - New York : IEEE Press. - 0780393554 ; , s. 553-557
  • Konferensbidrag (refereegranskat)abstract
    • An autonomous system able to construct its own navigation strategy for mobile robots is proposed. The navigation strategy is molded from navigation experiences (succeeding as the robot navigates) according to a classical reinforcement learning procedure. The autonomous system is based on modular hierarchical neural networks. Initially the navigation performance is poor (many collisions occur). Computer simulations show that after a period of learning the autonomous system generates efficient obstacle avoidance and target seeking behaviors. Experiments also offer support for concluding that the autonomous system develops a variety of object discrimination capability and of spatial concepts.
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2.
  • Leo, Francisco M., et al. (författare)
  • Role Ambiguity, Role Conflict, Team Conflict, Cohesion and Collective Efficacy in Sport Teams : A Multilevel Analysis
  • 2015
  • Ingår i: Psychology of Sport And Exercise. - Amsterdam : Elsevier. - 1469-0292 .- 1878-5476. ; 20, s. 60-66
  • Tidskriftsartikel (refereegranskat)abstract
    • This study examines how perceptions of role ambiguity, role conflict, team conflict, and cohesion can predict collective efficacy in sports teams. The participants were professional female and male football players, who participated in the First and Second Divisions in Spain. We adopted a longitudinal perspective, taking measures at the beginning, the middle, and the end of a sport season. Multilevel modelling analysis showed that perceptions of team conflict and cohesion, at the interpersonal and interteam levels, can predict changes in collective efficacy. However, individual perceptions of role ambiguity and role conflict were not relevant in establishing a team’s confidence. These results suggest interesting practical applications for coaches and sports psychologists in the professional sphere. © 2015 Elsevier Ltd.
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