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Equation 4 · Part 1 · Running an Interpretability Investigation That Holds Up

Symbol k

kk
kk

What this part means

k is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

k is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

which climbs toward certainty well before k reaches the size of a typical layer-by-layer or head-by-head sweep. A held-out set of prompts, reserved and untouched until the hypothesis is fixed, is the practical fix, and it only works if the hypothesis really was fixed first.

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the article section

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