What we know about hypothesis before seeing evidence
Prior describes a possible hypothesis or model space.
prior 알면 이상치 탐지, 결측치 채우기, 벡터 양자화 가능
a prior which reflects what we know before seeing data
Good if make prior after data instead of before — LessWrong
They say you’re supposed to choose your prior in advance. That’s why it’s called a “prior”. First, you’re supposed to say say how plausible different…
https://www.lesswrong.com/posts/JAA2cLFH7rLGNCeCo/good-if-make-prior-after-data-instead-of-before

Seonglae Cho