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feat!: move ruzicka from distances to similarities - #24

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ruzicka-is-a-similarity
Jul 31, 2026
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feat!: move ruzicka from distances to similarities#24
lpatiny merged 1 commit into
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ruzicka-is-a-similarity

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@lpatiny lpatiny commented Jul 30, 2026

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Ruzicka is the weighted Jaccard similarity: it returns 1 for identical vectors, and its matching distance is soergel. It was exported as distance.ruzicka, which is now similarity.ruzicka.

BREAKING CHANGE: distance.ruzicka no longer exists, use similarity.ruzicka instead.

closes: #7
closes: #21

Ruzicka is the weighted Jaccard similarity: it returns 1 for identical
vectors, and its matching distance is soergel. It was exported as
`distance.ruzicka`, which is now `similarity.ruzicka`.

BREAKING CHANGE: `distance.ruzicka` no longer exists, use
`similarity.ruzicka` instead.

closes: #7
closes: #21

Assisted-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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lpatiny merged commit a2672c5 into main Jul 31, 2026
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lpatiny deleted the ruzicka-is-a-similarity branch July 31, 2026 11:36
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ruzicka is a similarity and not a distance src/distances/ruzicka.js actually contains the function implementing the ruzicka similarity algorithm

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