The Kalman filter (named after its inventor, Rudolf E Kalman[?]) is an efficient recursive computational solution of the least-squares method[?], which is applicable to distinguishing signals from noise so as to predict changes in a modeled system with time.
... London) are now closed and, for the most part, abandoned.
Aldwych tube station
Blake Hall tube station[?]
British Museum tube station[?]
Brompton Road tube station[?] ...