Equation 5 · Part 1 · How Mechanistic Interpretability Research Is Actually Done
Symbol θ
What this part means
θ 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
θ 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 θ→Article meaning
The passage around this formula
with fit by ordinary gradient descent to minimise cross-entropy against labelled examples. Alain and Bengio introduced this move under the name “probes” and made an observation that still organises how the technique is used: linear separability of a target property increases monotonically with depth in the networks they studied, which is itself informative about where in the computation a property becomes available for linear readout [ 1 ] .
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 surrounding passage
These citations provide research context; check each source for the exact claim it supports.