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Modelos bayesianos de cognición

2000
  • Thomas Bayes
  • Joshua Tenenbaum
  • Thomas Griffiths
Laboratorio de investigación en psicología cognitiva con análisis de modelos bayesianos.

(Imagen generada únicamente con fines ilustrativos)

Bayesian models of cognition frame the mind as a probabilistic inference engine. This approach posits that the brain represents knowledge as probability distributions and updates these beliefs upon receiving new evidence according to Bayes’ theorem. It models perception, learning, and reasoning as optimal or near-optimal statistical inference under uncertainty, providing a unifying mathematical framework for many cognitive functions.

El núcleo de este enfoque es la regla de Bayes: [latex]P(H|D) = frac{P(D|H)P(H)}{P(D)}[/latex], donde [latex]H[/latex] es una hipótesis y [latex]D[/latex] son ​​los datos observados. La probabilidad posterior [latex]P(H|D)[/latex] (creencia en la hipótesis tras observar los datos) es proporcional al producto de la verosimilitud [latex]P(D|H)[/latex] (qué tan bien explica la hipótesis los datos) y la probabilidad previa [latex]P(H)[/latex] (creencia inicial en la hipótesis). Este marco proporciona un estándar normativo sobre cómo un agente racional debería actualizar sus creencias.

In cognitive science, this is applied by assuming that the mind implicitly performs these calculations. For example, in perception, the brain combines noisy sensory input (the data) with prior knowledge about the world to form a stable percept (the posterior). This can explain many visual illusions, where prior expectations override sensory data. In language learning, a child might use inferencia bayesiana to figure out the meaning of a new word by considering which potential meaning best explains the contexts in which the word was used. The approach is powerful because it provides a unifying mathematical framework for diverse cognitive phenomena and connects cognition directly to statistics and machine learning.

UNESCO Nomenclature: 6105
– Experimental psychology

Tipo

Sistema abstracto

Ruptura

Sustancial

Uso

Emerging Technology

Precursores

  • Bayes’ theorem by Thomas Bayes and Pierre-Simon Laplace
  • teoría de la probabilidad
  • information theory by Claude Shannon
  • signal detection theory in psychology

Aplicaciones

  • modeling visual perception and illusions
  • theories of language acquisition and word learning
  • models of causal reasoning and decision-making
  • computational neuroscience
  • machine learning algorithms like Bayesian networks and Kalman filters

Patentes:

NA

Ideas para posibles innovaciones

  • ai systems that can quantify and communicate their own uncertainty
  • medical diagnostic tools that integrate new test results with prior patient data
  • probabilistic programming languages for building complex ai models
  • unsupervised machine learning algorithms that discover causal structures in data
  • robots that can actively explore their environment to reduce uncertainty
  • financial models that predict market behavior under uncertainty
  • personalized education systems that infer a student’s knowledge state
  • ai for scientific discovery that formulates and tests hypotheses
  • more robust and interpretable machine learning models
  • brain-computer interfaces that can decode intentions from noisy neural signals
Related to: Bayesian cognition, probabilistic models, Bayes’ theorem, computational modeling, cognitive science, statistical inference, uncertainty, prior probability, posterior probability, Joshua Tenenbaum.

Contexto histórico

1941
1986
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2000
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1990

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