Python and Vectorization More Vectorization Examples Vectorizing Logistic Regression X의 차원은 (nx, m) nx dim vector가 m(sample)개 있다! :) 왜냐하면 x 데이터 1개를 열벡터로, 세로로 stacking 했으므로, 세로 방향으로는 성분들 (dim), 가로 방향으로는 m개의 샘플들이 진행 Vectorizing Logistic Regression's Gradient Output 벡터화 하더라도, iteration loop는 항상 필요하다. Broadcasting in Python Can you do this without explicit for-loop? A Note on Python/Numpy Vectors Qu..

Network Socket Network Socket is an internal endpoint for sending or receiving data within a node on a computer network. a representation of this endpoint in networking software (protocol stack) such as an entry in a table (listing communication protocol, destination, status, etc.), and is a form of system resource. 4계층을 깔고, Application 이야기한다. IP 주소 + 포트 번호 -> socket address 4계층과 3계층은 운영체제 안에 있다..