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Equation 5 · Part 1 · Training on Your Own Output: Synthetic Data and What It Does to a Distribution

Symbol k

k+1k+1
kk

What this part means

k+1 means one index position after k. In the article, use the nearby sentence to see what each position counts.

Its job in the formula

k+1 means one index position after k. In the article, use the nearby sentence to see what each position counts.

The passage around this formula

in which generation k+1 sees n samples drawn from its immediate predecessor and nothing else . The original data are gone. No filter selects among the samples. The lineage is single. Under those conditions, degradation compounds because there is no channel by which an error introduced at generation k can ever be corrected.

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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

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