free energy
1
8.6
- noun
- Specialized
:
energía libre
- In machine learning, researchers often use free energy to evaluate how well their models account for unexpected observations.
It is a free energy that scores a probability of your explanation for the world in your head being the right kind of explanation.
- It is a free energy that scores a probability of your explanation for the world in your head being the right kind of explanation.
Examples
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The concept of free energy plays a crucial role in approximating Bayesian inference in neuroscience.
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It is a free energy that scores a probability of your explanation for the world in your head being the right kind of explanation.
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Understanding free energy helps scientists measure and manage surprise in their predictive models.
Surface Forms
Morphology
The technical meaning (a specific variational/mathematical quantity in neuroscience and ML) cannot be derived by a B1 learner from the literal constituents 'free' and 'energy' — they would likely interpret it as 'energy that is without cost' or 'liberated energy'. Because the term is discipline-specific and abstract, its intended sense is idiomatic/technical and not predictable from the parts.
Etymology
The term free energy in brain science and machine learning is a number that measures 'surprise', meaning how much a model's expectations differ from what it actually senses. So models or brains try to lower free energy to reduce surprise and learn or act better.