Veranstaltungskalender:
I am a Postdoctoral Research Fellow at the Max-Planck Institutes for Biological Cybernetics and Intelligent Systems. I am a member of the Sensorimotor Learning and Decision-Making Group headed by Daniel A. Braun.
I obtained my PhD in Autonomous Systems at the University of Cambridge, UK, under the supervision of Zoubin Ghahramani, and my BSc in Engineering at the University of Chile.
- Personal Webpage: http://www.adaptiveagents.org
I'm interested in the foundations of Machine Learning, and I study the links between: information theory, learning, control, economics, causality, statistical mechanics, ergodic theory and complexity theory. Most importantly, I'm a huge fan of elegant, minimalistic algorithms that are practically simple, computationally efficient, and formally sound.
I have recently focused my efforts on information-theoretic and statistical mechanical approaches to adaptive control, leading to contributions in bounded rationality models and recasting adaptive control as a causal inference problem. I have also worked on causal induction, and on game- and decision-theoretic models in computational neuroscience.
Education
- 2006-2011: PhD in Engineering, University of Cambridge, United Kingdom
- 1998-2005: Computer Engineering, School of Engineering, Universidad de Chile
- 1995-1997: Secondary, Liceo Experimental Manuel de Salas, Santiago, Chile
- 1990-1994: Secondary, Gymnasium Typus B&C, Kantonsschule Oerlikon, Zürich, Switzerland
- 1984-1990: Primary, Schulhaus Probstei, Zürich, Switzerland
Academic Experience
- 2011-today: Postdoctoral Fellow, Max-Planck Institute for Intelligent Systems and Max-Planck Institute for Biological Cybernetics.
- 2010-2011: Research Associate, Engineering Design Centre, Univ. of Cambridge
- 2005: Lecturer, Information Theory and Neural Networks, Univ. of Chile
- 2000-2001, 2003: T.A. in Mechanics, Univ. of Chile
- 2000: T.A. in Computing I, Univ. of Chile
- 2003-2004: T.A. in Artificial Intelligence, Univ. of Chile
- 2003: T.A in Theory of Neural Networks, Univ. of Chile
- 2004. T.A. in Evolutionary Computation, Univ. of Chile
Honors & Scholarships
- 2006- : Graduate Studies Scholarship, Beca Presidente de la República, Government of Chile
- 1998-2002: Honor roll student (top 5%), School of Engineering, University of Chile
- 1996: Scholarship, Liceo Manuel de Salas, Santiago, Chile
- 1996: Winner of the National Physics Olympics, Chile
- 1996: Winner of the Metropolitan Physics Olympics, Santiago, Chile
Professional Experience
- 2006: Yahoo! Search Engine Marketing, DMX Group, USA
- 2006: Embedded System Design, Olimex, Chile
- 2003-2005: Datamining for customer segmentation, fraud detection and forecasting, Chile
- -2005: Website development
Artikel (5): | |
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Ortega PA  und Braun DA (March-2013) Thermodynamics as a theory of decision-making with information-processing costs
Proceedings of the Royal Society of London A Epub ahead. 
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Grau-Moya J , Ortega PA und Braun DA (September-2012) Risk-Sensitivity in Bayesian Sensorimotor Integration
PLoS Computational Biology 8(9) 1-7.
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Braun DA , Ortega PA und (June-2011) Motor coordination: when two have to act as one
Experimental Brain Research 211(3-4) 631-641.
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Ortega PA und Braun DA (May-2010) A Minimum Relative Entropy Principle for Learning and Acting
Journal of Artificial Intelligence Research 38(1) 475-511.
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Braun DA , Ortega PA und (August-2009) Nash Equilibria in Multi-Agent Motor Interactions
PLoS Computational Biology 5(8) 1-8.
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Beiträge zu Tagungsbänden (10): | |
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Ortega PA , Grau-Moya J , Genewein T , Balduzzi D und Braun DA (December-2012) A Nonparametric Conjugate Prior Distribution for the Maximizing Argument of a Noisy Function
In: Advances in Neural Information Processing Systems 25, Twenty-Sixth Annual Conference on Neural Information Processing Systems (NIPS 2012), 3014-3022.
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Ortega PA und Braun DA (December-2012) Adaptive Coding of Actions and Observations
NIPS Workshop on Information in Perception and Action 2012, 1-4.
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Ortega PA und Braun DA (July-2012) Free Energy and the Generalized Optimality Equations for Sequential Decision Making
10th European Workshop on Reinforcement Learning (EWRL 2012), 1-10.
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Ortega PA (December-2011) Bayesian Causal Induction
NIPS 2011 Workshop on Philosophy and Machine Learning, 1-4.
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Ortega PA und Braun DA (August-2011) Information, utility and bounded rationality
In: Artificial General Intelligence, Fourth International Conference on Artificial General Intelligence (AGI 2011), Springer, Berlin, Germany, 269-274.
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Ortega PA , Braun DA und (August-2011) Reinforcement Learning and the Bayesian Control Rule
In: Artificial General Intelligence, Fourth International Conference on Artificial General Intelligence (AGI 2011), Springer, Berlin, Germany, 281-285.
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Braun DA , Ortega PA , und Schaal S (April-2011) Path integral control and bounded rationality
IEEE Symposium on Adaptive Dynamic Programming And Reinforcement Learning (ADPRL 2011), IEEE, Piscataway, NJ, USA, 202-209.
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Braun DA und Ortega PA (June-2010) A minimum relative entropy principle for adaptive control in linear quadratic regulators
7th International Conference on Informatics in Control, Automation and Robotics (ICINCO 2010), SciTePress, 103-108.
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Ortega PA und Braun DA (March-2010) A Bayesian rule for adaptive control based on causal interventions
Third Conference on Artificial General Intelligence (AGI 2010), Atlantis Press, Amsterdam, Netherlands, 121-126.
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Ortega PA und Braun DA (March-2010) A conversion between utility and information
Third Conference on Artificial General Intelligence (AGI 2010), Atlantis Press, Amsterdam, Netherlands, 115-120.
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