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Equation 7 · Part 4 · Every Test Changed the Scene and Kept the Chair Red

fraction

RRR(π)=CAI(π)spatio(π),\mathrm{RRR}(\pi) = \frac{\mathrm{CAI}(\pi)}{s_{\mathrm{patio}}(\pi)} ,
fraction

What this part means

Divide the expression above the line by the one below it.

Its job in the formula

The expression above the fraction bar is divided by the complete expression below it. The denominator must not be zero.

The passage around this formula

Pair it with a Recolor Robustness Ratio , comparing that score against the architecture’s own already-published performance on the paper’s hardest matched-appearance site: RRR(π)=CAI(π)spatio(π)\mathrm{RRR}(\pi) = \frac{\mathrm{CAI}(\pi)}{s_{\mathrm{patio}}(\pi)} . where spatio(π)s_{\mathrm{patio}}(\pi) is the architecture’s own Table 1 Urban Patio success rate [ 1 ] . An RRR(π)\mathrm{RRR}(\pi) near 1 says the architecture tracks the target about as well when its color is no longer the give-away cue as when it was — the causal reading survives. An RRR(π)\mathrm{RRR}(\pi) collapsing toward 0 says performance was riding on the color the whole time, and collapses precisely when that color is taken away and handed to a decoy — the shift-stable-correlate account is confirmed instead.

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Learn the underlying idea

A fraction a/b means a divided by b. The top number is the numerator; the bottom number is the denominator, and it cannot be zero.

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Sources cited in the surrounding passage

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