Equation 1 · Part 3 · A History of How We Learned to Evaluate AI Agents
Symbol s_t
What this part means
is an input to the expression that computes the quantity on the left.
Its job in the formula
is an input to the expression that computes the quantity on the left.
Full expression→Symbol s_t→Article meaning
The passage around this formula
…inference — behind one leaderboard number. That number is worth writing out, because the arithmetic embeds an assumption the field would later revisit: . an unweighted mean of nine task scores . Averaging like this treats all nine component tasks as equally important and, implicitly, as equally hard and equally reliably measured — an assumption nothing in the construction actually guarantees. It is a real simplifying assumption, not a neutral summary statistic, and it is exactly the…
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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