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.
... guna[?], and vrdhii[?] grades. If V is the vowel of the zero grade, the guna grade vowel is traditionally thought of a V + a, and the vrdhii grade vowel as V + aa. ...