I think a dense vector is the opposite of a sparse vector i.e. in a dense vector... | Hacker News

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anentropic on Sept 30, 2021 | parent | context | favorite | on: PostgreSQL 14

I think a dense vector is the opposite of a sparse vector

i.e. in a dense vector every value in the vector is stored

whereas sparse vectors exist to save space when you have large vectors where most of the values are usually zero - they reconstruct the full vector by storing only the non-zero values, plus their indices

gavinray on Sept 30, 2021 [–]

  "a dense vector is the opposite of a sparse vector"

I think there's another thing besides vectors that are a bit dense in the room here, eh? Yeah that makes sense hahaha -- thank you.

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