Ara es mostren els items 1-20 de 28

    • Action rule induction from cause-effect pairs learned through robot-teacher interaction 

      Agostini, Alejandro Gabriel; Celaya Llover, Enric; Torras, Carme; Wörgötter, Florentin (2008)
      Text en actes de congrés
      Accés obert
      In this work we propose a decision-making system that efficiently learns behaviors in the form of rules using natural human instructions about cause-effect relations in currently observed situations, avoiding complicated ...
    • Active learning of manipulation sequences 

      Martínez Martínez, David; Alenyà Ribas, Guillem; Jiménez Schlegl, Pablo; Torras, Carme; Rossmann, Jürgen; Wantia, Nils; Eren Erdal, Aksoy; Haller, Simon; Piater, Justus (2014)
      Text en actes de congrés
      Accés obert
      We describe a system allowing a robot to learn goal-directed manipulation sequences such as steps of an assembly task. Learning is based on a free mix of exploration and instruction by an external teacher, and may be active ...
    • Assessing confidence in cased based reuse step 

      García, Fabio A.; Orozco, Francisco J.; Gonzàlez, Jordi; Arcos, Lluis (IOS Press, 2007)
      Capítol de llibre
      Accés obert
      Case-Based Reasoning (CBR) is a learning approach that solves current situations by reusing previous solutions that are stored in a case base. In the CBR cycle the reuse step plays an important role into the problem solving ...
    • Automatic generation of computer animated sequences based on human behaviour modelling 

      Baiget, Pau; Soto, Joan; Roca, Francesc Xavier; Gonzàlez, Jordi (s. n., 2007)
      Text en actes de congrés
      Accés obert
      This paper presents a complete framework to automatically generate synthetic image sequences by designing and simulating complex human behaviors in virtual environments. Given an initial state of a virtual agent, a simulation ...
    • BiDrac industry 4.0 framework: application to an automotive paint shop process 

      Sanz Gràcia, Elma; Blesa Izquierdo, Joaquim; Puig Cayuela, Vicenç (2021-04)
      Article
      Accés obert
      To implement an Industry 4.0 Framework in an ongoing industrial manufacturing process to prepare it for complex Artificial Intelligence use cases is not an easy task. The automotive industry is undergoing a large transformation ...
    • Competitive function approximation for reinforcement learning 

      Agostini, Alejandro Gabriel; Celaya Llover, Enric (2014)
      Report de recerca
      Accés obert
      The application of reinforcement learning to problems with continuous domains requires representing the value function by means of function approximation. We identify two aspects of reinforcement learning that make the ...
    • Demonstration-free contextualized probabilistic movement primitives, further enhanced with obstacle avoidance 

      Colomé Figueras, Adrià; Torras, Carme (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés obert
      Movement Primitives (MPs) have been widely used over the last years for learning robot motion tasks with direct Policy Search (PS) reinforcement learning. Among them, Probabilistic Movement Primitives (ProMPs) are a kind ...
    • Eduquem les criatures... també les artificials! 

      Torras, Carme (2023-04-01)
      Article
      Accés obert
      Artificial és tot allò creat pels humans, ja siguin objectes d’artesania com enginys fruit de la tecnologia. Malgrat l’antiguitat dels productes artificials i de la utilització d’eines per construir-los, no és fins a ...
    • Exploiting symmetries in reinforcement learning of bimanual robotic tasks 

      Amadio, Fabio; Colomé Figueras, Adrià; Torras, Carme (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Article
      Accés obert
      Movement Primitives (MPs) have been widely adopted for representing and learning robotic movements using Reinforcement Learning Policy Search. Probabilistic Movement Primitives (ProMPs) are a kind of MP based on a stochastic ...
    • Feature-tree labeling for case base maintenance 

      Nakhjiri, Nariman; Salamó, Maria; Sànchez-Marrè, Miquel (IOS Press, 2018-10-01)
      Article
      Accés obert
      Case Base Maintenance (CBM) algorithms update the content of the case base with the aim of improving the case-based reasoner performance. In this paper, we introduce a novel CBM method called Feature-Tree Labeling (FTL) ...
    • Geodesic finite mixture models 

      Simó Serra, Edgar; Torras, Carme; Moreno-Noguer, Francesc (2014)
      Text en actes de congrés
      Accés obert
      We present a novel approach for learning a finite mixture model on a Riemannian manifold in which Euclidean metrics are not applicable and one needs to resort to geodesic distances consistent with the manifold geometry. ...
    • Implications of robot backchannelling in cognitive therapy 

      Andriella, Antonio; Torras, Carme; Alenyà Ribas, Guillem (Springer, 2022)
      Text en actes de congrés
      Accés obert
      The social ability of humans to provide active feedback during conversations is known as backchannelling. Recent work has recognised the importance of endowing robots with such social behaviour to make interactions more ...
    • Interleaving hierarchical task planning and motion constraint testing for dual-arm manipulation 

      Suárez Hernández, Alejandro; Alenyà Ribas, Guillem; Torras, Carme (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés obert
      In recent years the topic of combining motion and symbolic planning to perform complex tasks in the field of robotics has received a lot of attention. The underlying idea is to have access at once to the reasoning capabilities ...
    • 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 ...
    • Les dades obertes i la intel·ligència artificial, eines per a la igualtat de gènere 

      Bellver Fernández, Carina; Ventura Pocino, Patrícia (2022)
      Llibre
      Accés obert
      Per donar una visió coral sobre la necessitat d’incloure la perspectiva de gènere en l’obertura de dades i en l’ús de la intel·ligència artificial, aquest llibre que teniu a les mans —el setè volum de la col·lecció Govern ...
    • Multi-modal joint embedding for fashion product retrieval 

      Rubio Romano, Antonio; Yu, Longlong; Simó Serra, Edgar; Moreno-Noguer, Francesc (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés obert
      Finding a product in the fashion world can be a daunting task. Everyday, e-commerce sites are updating with thousands of images and their associated metadata (textual information), deepening the problem, akin to finding a ...
    • Online EM with weight-based forgetting 

      Celaya Llover, Enric; Agostini, Alejandro Gabriel (2015)
      Article
      Accés obert
      In the on-line version of the EM algorithm introduced by Sato and Ishii (2000), a time-dependent discount factor is introduced for forgetting the effect of the old posterior values obtained with an earlier, inaccurate ...
    • Partial symbol ordering distance 

      Herranz Sotoca, Javier; Nin Guerrero, Jordi (Springer Verlag, 2009)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Nowadays sequences of symbols are becoming more important, as they are the standard format for representing information in a large variety of domains such as ontologies, sequential patterns or non numerical attributes in ...
    • Planning clearing actions in cluttered scenes by phasing in geometrical constraints 

      Covallero, Nicola; Martinez Martinez, David; Alenyà Ribas, Guillem; Torras, Carme (IOS Press, 2017)
      Text en actes de congrés
      Accés obert
      Manipulation planning of cluttered objects involves a mixture of symbolic and geometric constraints which makes such planning very time consuming and often unsuitable for real applications. We propose to divide the geometric ...
    • Recurrent neural networks for inferring intentions in shared tasks for industrial collaborative robots 

      Maceira Duch, Marc; Olivares Alarcos, Alberto; Alenyà Ribas, Guillem (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés obert
      Industrial robots are evolving to work closely with humans in shared spaces. Hence, robotic tasks are increasingly shared between humans and robots in collaborative settings. To enable a fluent human robot collaboration, ...