Re:Show HN: Basilica – word2vec for anything
by thanatropism on Wednesday October 31, 2018 @01:12PM
(#18347490)
Projection is a type of embedding. But you can't really describe what LTSA, UMAP, etc. do as projection. LTSA "unrolls" data rather than projecting it.
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Re:Show HN: Basilica – word2vec for anything
by xapata on Wednesday October 31, 2018 @02:36PM
(#18348181)
On the contrary, I'd say an "unrolling" is a non-linear projection. Wikipedia suggests that embedding is a type of projection. I hadn't heard the term before today.
https://en.wikipedia.org/wiki/Nonlinear_dimensionality_reduc...