Equation 15 · Part 1 · What Interpretability Actually Costs to Do at Scale
Symbol k
What this part means
the because published topk configurations keep.
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.
Full expression→Symbol k→Article meaning
Where the article explains it
Because published TopK configurations keep k in the tens to low hundreds while n runs into the millions, n k and the encoding term dominates almost entirely: 2dnT .
The passage around this formula
Because published TopK configurations keep k in the tens to low hundreds while n runs into the millions, n k and the encoding term dominates almost entirely: 2dnT . That single approximation explains something the paper reports without deriving: convergence — the point at which more tokens stop buying lower…
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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 surrounding passage
These citations provide research context; check each source for the exact claim it supports.