Ara es mostren els items 112-131 de 226

    • Kinematic Bézier maps 

      Ulbrich, Stefan; Ruiz de Angulo García, Vicente; Torras, Carme; Asfour, Tamim; Dillmann, Rudiger (2012)
      Article
      Accés obert
      The kinematics of a robot with many degrees of freedom is a very complex function. Learning this function for a large workspace with a good precision requires a huge number of training samples, i.e., robot movements. In ...
    • La ciencia ficción como estímulo del debate ético en robótica 

      Torras, Carme (Icaria Editorial, 2022)
      Capítol de llibre
      Accés restringit per política de l'editorial
      En este capítulo afirmamos que la ciencia ficción anticipatoria tiene un papel importante que desempeñar en el actual contexto de desarrollo tecnológico acelerado, ya que puede ayudar a prever posibles futuros alternativos ...
    • Large-scale image classification using ensembles of nested dichotomies 

      Ramisa Ayats, Arnau; Torras, Carme (IOS Press, 2013)
      Text en actes de congrés
      Accés obert
      Many techniques to reduce the cost at test time in large-scale problems involve a hierarchical organization of classifiers, but are either too expensive to learn or degrade the classification performance. Conversely, in ...
    • Learning cloth manipulation with demonstrations 

      Jangir, Rishabh; Torras, Carme; Alenyà Ribas, Guillem (2019)
      Report de recerca
      Accés obert
      Recent advances in Deep Reinforcement learning and computational capabilities of GPUs have led to variety of research being conducted in the learning side of robotics. The main aim being that of making autonomous robots ...
    • Learning collaborative impedance-based robot behaviors 

      Rozo Castañeda, Leonel; Calinon, Sylvain; Caldwell, Darwin; Jiménez Schlegl, Pablo; Torras, Carme (2013)
      Text en actes de congrés
      Accés obert
      Research in learning from demonstration has focused on transferring movements from humans to robots. However, a need is arising for robots that do not just replicate the task on their own, but that also interact with humans ...
    • Learning force-based robot skills from haptic demonstration 

      Rozo Castañeda, Leonel; Jiménez Schlegl, Pablo; Torras, Carme (IOS Press, 2010)
      Text en actes de congrés
      Accés obert
      Locally weighted as well as Gaussian mixtures learning algorithms are suitable strategies for trajectory learning and skill acquisition, in the context of programming by demonstration. Input streams other than visual ...
    • Learning inverse kinematics: Reduced sampling through decomposition into virtual robots 

      Ruiz de Angulo García, Vicente; Torras, Carme (IEEE, 2008)
      Article
      Accés obert
      We propose a technique to speed up the learning of the inverse kinematics of a robot manipulator by decomposing it into two or more virtual robot arms. Unlike previous decomposition approaches, this one does not place any ...
    • Learning physical collaborative robot behaviors from human demonstrations 

      Rozo Castañeda, Leonel; Calinon, Sylvain; Caldwell, Darwin; Jiménez Schlegl, Pablo; Torras, Carme (Institute of Electrical and Electronics Engineers (IEEE), 2016-04-01)
      Article
      Accés obert
      Robots are becoming safe and smart enough to work alongside people not only on manufacturing production lines, but also in spaces such as houses, museums, or hospitals. This can be significantly exploited in situations in ...
    • Learning probabilistic action models from interpretation transitions 

      Martínez Martínez, David; Ribeiro, Tony; Inoue, Katsumi; Alenyà Ribas, Guillem; Torras, Carme (2015)
      Text en actes de congrés
      Accés obert
      Probabilistic planners are very flexible tools that provide good solutions for difficult tasks. However, they rely on a model of the domain and actions, which they have difficulties to learn for complex tasks. We propose ...
    • Learning relational dynamics of stochastic domains for planning 

      Martínez Martínez, David; Alenyà Ribas, Guillem; Torras, Carme; Ribeiro, Tony; Inoue, Katsumi (2016)
      Text en actes de congrés
      Accés obert
      Probabilistic planners are very flexible tools that can provide good solutions for difficult tasks. However, they rely on a model of the domain, which may be costly to either hand code or automatically learn for complex ...
    • Learning RGB-D descriptors of garment parts for informed robot grasping 

      Ramisa Ayats, Arnau; Alenyà Ribas, Guillem; Moreno-Noguer, Francesc; Torras, Carme (2014)
      Article
      Accés obert
      Robotic handling of textile objects in household environments is an emerging application that has recently received considerable attention thanks to the development of domestic robots. Most current approaches follow a ...
    • Learning robot policies using a high-level abstraction persona-behaviour simulator 

      Andriella, Antonio; Torras, Carme; Alenyà Ribas, Guillem (2019)
      Text en actes de congrés
      Accés obert
      Collecting data in Human-Robot Interaction for training learning agents might be a hard task to accomplish. This is especially true when the target users are older adults with dementia since this usually requires hours of ...
    • Learning rules from cause-effects explanations 

      Agostini, Alejandro Gabriel; Celaya Llover, Enric; Torras, Carme; Wörgötter, Florentin (2008)
      Report de recerca
      Accés obert
      In this work we propose a learning system to learn on-line an action policy coded in rules using natural human instructions about cause-effect relations in currently observed situations. The instructions only on currently ...
    • Learning weakly correlated cause-effects for gardening with a cognitive system 

      Agostini, Alejandro Gabriel; Torras, Carme; Worgotter, Florentin (2014)
      Article
      Accés obert
      We propose a cognitive system that combines artificial intelligence techniques for planning and learning to execute tasks involving delayed and variable correlations between the actions executed and their expected effects. ...
    • Leveraging multiple environments for learning and decision making: a dismantling use case 

      Suárez Hernández, Alejandro; Gaugry, Thierry; Segovia Aguas, Javier; Bernardin, Antonin; Torras, Carme; Marchal, Maud; Alenyà Ribas, Guillem (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Learning is usually performed by observing real robot executions. Physics-based simulators are a good alternative for providing highly valuable information while avoiding costly and potentially destructive robot executions. ...
    • Lie algebra-based kinematic prior for 3D human pose tracking 

      Simó Serra, Edgar; Torras, Carme; Moreno-Noguer, Francesc (2015)
      Text en actes de congrés
      Accés obert
      We propose a novel kinematic prior for 3D human pose tracking that allows predicting the position in subsequent frames given the current position. We first define a Riemannian manifold that models the pose and extend it ...
    • Local stimulus disambiguation with global motion filters predicts adaptive surround modulation 

      Dellen, Babette; Torras, Carme (2013)
      Article
      Accés obert
      Humans have no problem segmenting different motion stimuli despite the ambiguity of local motion signals. Adaptive surround modulation, i.e., the apparent switching between integrative and antagonistic modes, is assumed ...
    • Lock-in time-of-flight (ToF) cameras: a survey 

      Foix Salmerón, Sergi; Alenyà Ribas, Guillem; Torras, Carme (2011)
      Article
      Accés obert
      This paper reviews the state-of-the art in the field of lock-in ToF cameras, their advantages, their limitations, the existing calibration methods, and the way they are being used, sometimes in combination with other ...
    • Mixtures of controlled Gaussian processes for dynamical modeling of deformable objects 

      Xu Zheng, Ce; Colomé Figueras, Adrià; Sentis, Luis; Torras, Carme (Proceedings of Machine Learning Research (PMLR), 2022)
      Text en actes de congrés
      Accés obert
      Control and manipulation of objects is a highly relevant topic in Robotics research. Although significant advances have been made over the manipulation of rigid bodies, the manipulation of non-rigid objects is still ...
    • Monocular object pose computation with the foveal-peripheral camera of the humanoid robot Armar-III 

      Alenyà Ribas, Guillem; Torras, Carme (IOS Press, 2008)
      Capítol de llibre
      Accés obert
      Active contour modelling is useful to fit non-textured objects, and algorithms have been developed to recover the motion of an object and its uncertainty. Here we show that these algorithms can be used also with point ...