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Equation 2 · Part 1 · The Real Economics of Shipping a Model to a Device

Symbol T

TCteacher=Q⋅cteacher.TC_{\mathrm{teacher}} = Q \cdot c_{\mathrm{teacher}}.
TT

What this part means

T is part of the quantity the equation computes from the expression on the right.

Its job in the formula

T is part of the quantity the equation computes from the expression on the right.

The passage around this formula

against the cost of simply continuing to serve the teacher directly for the same query volume, TCteacher=Q⋅cteacherTC_{\mathrm{teacher}} = Q \cdot c_{\mathrm{teacher}}. Here CdistillC_{\mathrm{distill}} is the one-time training cost, Q is the number of queries served over the deployment’s life, and cstudentc_{\mathrm{student}} and cteacherc_{\mathrm{teacher}} are the marginal cost per query of serving each model, wherever that serving happens. The break-even query volume is

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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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