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Support binary metric #92

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frederikziebell opened this issue Apr 1, 2022 · 2 comments
Open

Support binary metric #92

frederikziebell opened this issue Apr 1, 2022 · 2 comments
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enhancement New feature or request

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@frederikziebell
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For binary data, it would be helpful to support the binary metric as implemented in dist(metric="binary"). Currently, the only way is to pass the dist object directly, which is very memory inefficient.
@jlmelville jlmelville added the enhancement New feature or request label Apr 2, 2022
@jlmelville
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The description in the doc for ?dist seems to be indicate that method = "binary" is the Jaccard/Tanimoto distance. Supporting this will require an alternative to Annoy, so it won't be happening any time soon, unfortunately.

@jlmelville
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Although not as convenient as full integration with uwot, rnndescent supports the Jaccard/Tanimoto coefficient with binary data. See the rnndescent article for details on using it with uwot.

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@jlmelville @frederikziebell