Today Mario Zarco graduated with honors from UNAM’s Master’s degree in Computer Science and Engineering for his work on self-optimization in neural networks.
The title and extended abstract of his thesis are as follows:
Estudio de Auto-Optimización en Redes Neuronales de Hopfield
Mario Alberto Zarco López
Las redes neuronales de Hopfield de tiempo discreto, cuya dinámica presentan múltiples atractores de punto fijo, han sido ampliamente usadas en dos casos: (1) memoria asociativa, basada en aprender un conjunto de patrones de entrenamiento los cuales son representados por atractores, y (2) optimización, basado en representar un problema de satisfaccion de restricciones con la topología de la red de tal forma que los atractores sean soluciones de ese problema. En el ultimo caso, la función de energía de la red debe tener la misma forma que la función a ser optimizada, de modo que los m´ınimos de la primera también sean mínimos de la segunda. Aunque se ha demostrado que los atractores de baja energía tienen un amplio domino de atracción, la red usualmente queda atrapada en mínimos locales. Recientemente se demostró que las redes de Hopfield de tiempo-discreto pueden converger en atractores globalmente óptimos ampliando las mejores cuencas de atracción. La red combina el aprendizaje de sus propios atractores usando aprendizaje Hebbiano y la aleatorizacion de los estados neuronales una vez que la red ha reforzada su configuración actual. (more…)
Special issue: “Spotlight on 4E Cognition research in Mexico”
The last couple of decades in cognitive science have seen an increasing interest in the philosophical and scientific study of embodied, embedded, extended, and enactive cognition – so-called “4E cognition.” By now theories of 4E cognition have matured and a lot of evidence has been collected, which consequently has reshaped our understanding of the relationship between an agent’s brain, body, and its material and sociocultural world. Despite their differences in emphasis, the various strands of 4E cognition research are united in proposing that an agent’s cognitive activity is bodily mediated, especially by the context-sensitive deployment of sensorimotor capacities.
While these interdisciplinary approaches have largely been developed in Europe, the United States, and Australia, other regions have also been influenced by this growing movement and have started to advance their own original contributions. The aim of this special issue is, therefore, to put a spotlight on 4E cognition research from one such region, Mexico. It intends to do so in two respects: first, to explore the current state and breadth of the field in Mexico; second, to critically examine questions and problems elicited by this Mexican research, focusing on open challenges, with the aim to articulate more precise arguments for and against key claims advanced by 4E cognition research.
The new season of the ENactive Seminars Online (ENSO) will start on Thursday Sept. 7, at 10 a.m. UTC, with a presentation from Miriam Kyselo on Diversity and the Minimal Self. The abstract and other details for the event, including links for viewing the talk and a forum for discussion can all be found here.
If you are interested in participating in the live session, please send an email to Matthew Egbert <firstname.lastname@example.org> before or during the event. He will respond by sending a link that you can follow to participate. For this link to work, you will need to have the browser plugin for google hangouts.
FROM ANIMALS TO ANIMATS 15 The 15th International Conference on the Simulation of Adaptive Behavior (SAB2018)
14-17 August 2018, Frankfurt, Germany
* Keynote speakers *
Auke Jan Ijspeert, Swiss Federal Institute of Technology (EPFL), Switzerland
Jan Peters, Darmstadt University of Technology, Germany
Koh Hosoda, Osaka University, Japan
Tom Froese, National Autonomous University of Mexico, Mexico (more…)
Interested persons from the general public are welcome to attend this workshop. The entrance is free, but space is limited, so you should contact Susana Ramírez (email@example.com) to confirm your presence.
I have been invited as a plenary speaker to the International Colloquium of Philosophy and Psychiatry, which will take place August 31 – September 2 in Bogota, Colombia. The title and abstract of my talk are as follows:
Integrating phenomenology and systems theory: The case of embodied memory
I will give an introduction to dynamical systems analysis and use it to formalize and ground the phenomenology of embodied memory. Three kinds of extra- neural processes will be considered: 1) physiological dynamics, 2) movement dynamics, and 2) social interaction dynamics. Their potential to serve as forms of memory will be illustrated on the basis of three simple agent-based models. These computational thought experiments help to demonstrate the problems faced by a purely brain-based account of the self and its capacities. They also support the adoption of a broader notion of psychopathology that takes into account the cognitive effects of undergoing changes…
October 20-22 2017
Maria Curie-Skłodowska University
Within the social sciences, it is widely accepted that groups of people exhibit social properties and dynamics that emerge from, but cannot be reductively identified with the actions and properties of individual members. Nevertheless, psychology and cognitive science have only reluctantly embraced the idea that something similar might happen in the domain of mind and cognition. (more…)