Rank-metric code: A class of codes where the distance between codewords is measured by the rank of their difference, rather than by the number of differing symbols.

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An in-depth look at the Yandex ranking factors leak, algorithm updates, and related announcements from Dan Taylor, our Russian SEO expert.

These 2019 snapshots are labeled as the Ranking Data Time Machine. Other historic snapshots can be requested, just shoot me a note at [email protected] We track more than $156 billion in related ...