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hasIdentifier:	https://padme-analytics.de/pht/codeFragment/b32b72bccf96013f21ad633329990997af025f26eeb89a0d28969a9931772bd5
hasContent:	iou = np.diag(hist) / (hist.sum(axis=1) + hist.sum(axis=0) - np.diag(hist))

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