Symbol hatp_θ
hatp_θ is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
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Why this formula appears here
Nothing in this update requires knowing or estimating p(s' s, a) ; it only requires having experienced (s, a, r, s') . A model-based approach instead fits an explicit dynamics model — a “world model” — and plans against it directly:
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Symbol s
s is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Read this term in its guide →Symbol a
a is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
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Read this expression with the definitions, units, and assumptions supplied by the article.
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Published contexts (1)
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Equation 4 · Robotics & Embodied AI
Comparing the Main Approaches to Robotics and Embodied AI
This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.
Nothing in this update requires knowing or estimating p(s' s, a) ; it only requires having experienced (s, a, r, s') . A model-based approach instead fits an explicit dynamics model — a “world model” — and plans against it directly:
Equation guide → · Article →