Latin Extended scores highest because phonetic extensions are deliberately designed to resemble their Latin base forms. Mathematical Alphanumeric Symbols dominate the dataset (806 of 1,418 pairs) but score low because ornate mathematical letterforms (script, fraktur, double-struck) look nothing like plain Latin in a different font. Arabic scores lowest: the letterforms are structurally different from Latin even when confusables.txt maps them as confusable.
Area Clusters: The map is intelligently segmented into numerous small regions or clusters.
，这一点在旺商聊官方下载中也有详细论述
Google 的 AppFunctions 也是同理。
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