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FIAS Scientific Report 2010 - Frankfurt Institute for Advanced Studies ...

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4. Project “IM-CLeVeR”: Intrinsically Motivated Cumulative Learning Versatile<br />

Robots<br />

Collaborators: C. Dimitrakakis 1 , L. Lonini 1 , C. A. Rothkopf 1 , J. Triesch 1 , R. Pramod 1<br />

1 <strong>Frankfurt</strong> <strong>Institute</strong> <strong>for</strong> <strong>Advanced</strong> <strong>Studies</strong><br />

IM-CLeVeR is an integrated project (IP) funded by the European Union and involves partners from multiple<br />

European countries. The overall goal of the project is to better understand:<br />

– The development of intrinsic motivation mechanisms <strong>for</strong> driving exploration and autonomous development.<br />

– Cumulative learning of multiple skills, through the efficient building of new skills by reusing or refining old<br />

skills.<br />

IM-CLeVeR brings together Neuroscientists, Psychologists, Roboticists, and machine learning experts to tackle<br />

these problems. There are diverse research ef<strong>for</strong>ts around these core areas, including exploration and exploitation<br />

trade-offs, optimal planning, efficient representations, novelty detection and hierarchical world models, to<br />

name but a few.<br />

At <strong>FIAS</strong>, the research focuses in the following main areas:<br />

1. Applied vision research. Using a mobile robot head, efficient algorithms <strong>for</strong> perceptual abstraction, object<br />

recognition, tracking and autonomous learning are investigated. This ef<strong>for</strong>t also lays the groundwork <strong>for</strong><br />

models developed in other parts of the research to be implemented in the robot itself.<br />

2. Hierarchical models <strong>for</strong> rein<strong>for</strong>cement learning, estimation and control. Complex inference and planning<br />

problems can be more easily managed in a hierarchical framework. A number of statistical techniques<br />

are investigated <strong>for</strong> efficient and accurate learning and planning.<br />

3. Links between utility theory and apprenticeship learning. Apprenticeship learning is a potentially important<br />

learning mode. The objective is not only to imitate what a demonstrator is doing, but to furthermore<br />

infer what he is doing and improve upon it.<br />

4. Links between models and animal learning. Investigate whether models exhibit emergent behaviour<br />

reminiscent of animal learning, then design experiments to test this hypothesis.<br />

5. Near-optimal Bayesian planning. Since Bayesian planning is intractable, investigate efficient approximate<br />

algorithms that do as well as possible given a computational budget.<br />

6. Utility theory models <strong>for</strong> curiosity. Characterise the value of in<strong>for</strong>mation in an abstract classes of tasks,<br />

thus obtaining a well-defined measure of curiosity. Derive approximate, but nearly optimal, “curiositybased”<br />

algorithms based on this measure.<br />

Related publications in <strong>2010</strong>:<br />

1) A. Alessi, L. Zollo, L. Lonini, R. De Falco, E. Guglielmelli, Incremental learning control of the DLR-HIT-<br />

Hand II during interaction tasks, Engineering in Medicine and Biology Society (EMBC), <strong>2010</strong> Annual<br />

International Conference of the IEEE. pp.3194–3197.<br />

17

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