ID: D202601101130
Tags: Datascience
Today’s Note ⇒
2026-01-10
The reason that in cosine correlation we speak of vector is because a numerical table is just a x dimensional coordinate
this links back to the theory about PCA, and explains why the list of numbers is called a vector. cause vector3 is a 3 dimensional coordinate. comparing user profile to a table is also easy, just make a table with the same BOW, strip the unused data from the real table, and just compare the Bag of Words vector from the user to the entire table of studies
References
A thought I randomly had about Datascience when doing dishes.