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  _____      ___     _    _      ___      _  _   
 /  ___||   / _ \\  | \  / ||   / _ \\   | \| || 
| // __    | / \ || |  \/  ||  | / \ ||  |  ' || 
| \\_\ ||  | \_/ || | .  . ||  | \_/ ||  | .  || 
 \____//    \___//  |_|\/|_||   \___//   |_|\_|| 
  `---`     `---`   `-`  `-`    `---`    `-` -`

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Text this: STATE-SPACE MODELS AND KALMAN FILTER IN QUANTITATIVE FINANCE