← All parts of this equation

Equation 21 · Part 1 · The Main Technical Approaches to AI Alignment, Compared

Symbol f_sto s

fs→sf_{s\to s}
fs→sf_{s\to s}

What this part means

fsf_sto s 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

fsf_sto s 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

They quantify how much of the gap this recovers with a metric called performance gap recovered, defined by its two boundary conditions: it equals one under perfect weak-to-strong generalization and zero when the weak-to-strong model does no better than the weak supervisor it learned from [ 12 ] . Writing fwf_w for the weak supervisor, fw→sf_{w\to s} for the strong model fine-tuned on the weak model’s labels, and fs→sf_{s\to s} for the strong model fine-tuned on ground truth as an upper-bound ceiling, those two conditions pin down

Read this part in the article →

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.

Open the illustrated subscripts: which member of a family? guide →

See this notation across published equations →

Sources cited in the surrounding passage

These citations provide research context; check each source for the exact claim it supports.