Equation 1 · Part 6 · How Robotics and Embodied AI Actually Work
Symbol p_θ
What this part means
p_θ is one of the signed contributions combined to compute the quantity on the left.
Its job in the formula
p_θ is one of the signed contributions combined to compute the quantity on the left.
Full expression→Symbol p_θ→Article meaning
The passage around this formula
Dreamer-style world models learn a compact latent-dynamics model — a recurrent state-space model that predicts both a stochastic and a deterministic component of future latent state — and then train a policy by backpropagating through imagined rollouts inside that latent space, rather than through real or simulated environment steps directly [ 8 ] . DayDreamer took that specific mechanism, previously demonstrated mostly in video-game and simulated benchmarks, and applied it to physical robots learning online, without a simulator and without human demonstrations, reporting that four different physical robots (a quadruped and several manipulator arms) learned locomotion and manipulation skills…
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
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Sources cited in the surrounding passage
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