Active Choice of Teachers, Learning Strategies and Goals for a Socially Guided Intrinsic Motivation Learner - ENSTA Paris - École nationale supérieure de techniques avancées Paris Accéder directement au contenu
Article Dans Une Revue Paladyn: Journal of Behavioral Robotics Année : 2012

Active Choice of Teachers, Learning Strategies and Goals for a Socially Guided Intrinsic Motivation Learner

Sao Mai Nguyen
Pierre-Yves Oudeyer

Résumé

We present an active learning architecture that allows a robot to actively learn which data collection strategy is most efficient for acquiring motor skills to achieve multiple outcomes, and generalise over its experience to achieve new outcomes. The robot explores its environment both via interactive learning and goal-babbling. It learns at the same time when, who and what to actively imitate from several available teachers, and learns when not to use social guidance but use active goal-oriented self-exploration. This is formalised in the framework of life-long strategic learning. The proposed architecture, called Socially Guided Intrinsic Motivation with Active Choice of Teacher and Strategy (SGIM-ACTS), relies on hierarchical active decisions of what and how to learn driven by empirical evaluation of learning progress for each learning strategy. We illustrate with an experiment where a simulated robot learns to control its arm for realising two kinds of different outcomes. It has to choose actively and hierarchically at each learning episode: 1) what to learn: which outcome is most interesting to select as a goal to focus on for goal-directed exploration; 2) how to learn: which data collection strategy to use among self-exploration, mimicry and emulation; 3) once he has decided when and what to imitate by choosing mimicry or emulation, then he has to choose who to imitate, from a set of different teachers. We show that SGIM-ACTS learns significantly more efficiently than using single learning strategies, and coherently selects the best strategy with respect to the chosen outcome, taking advantage of the available teachers (with different levels of skills).
Fichier principal
Vignette du fichier
Nguyen_2012Paladyn.pdf (950.36 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00936932 , version 1 (27-01-2014)
hal-00936932 , version 2 (03-03-2014)

Identifiants

Citer

Sao Mai Nguyen, Pierre-Yves Oudeyer. Active Choice of Teachers, Learning Strategies and Goals for a Socially Guided Intrinsic Motivation Learner. Paladyn: Journal of Behavioral Robotics, 2012, 3 (3), pp.136-146. ⟨10.2478/s13230-013-0110-z⟩. ⟨hal-00936932v2⟩
291 Consultations
385 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More