Equation 24 · Part 1 · How a Model Actually Gets Small Enough to Run on a Phone
Symbol hatx
What this part means
the dequantised approximation actually used in arithmetic.
Its job in the formula
hatx 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 hatx→Article meaning
Where the article explains it
where is round-to-nearest and is the dequantised approximation actually used in arithmetic.
The passage around this formula
where is round-to-nearest and is the dequantised approximation actually used in arithmetic. Jacob and colleagues’ integer-arithmetic scheme, still the reference formulation for this mapping, showed that with weights and activations quantized this way, “inference can be carried out using integer-only arithmetic” end to end on ordinary integer hardware, with no floating-point unit required at all, which is what makes the technique valuable on the cheapest edge silicon rather than merely on the largest [ 7 ] .
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.