10.1184/R1/6477413.v1 Richard James Duffin Richard James Duffin Extrapolating time series by discounted least squares Carnegie Mellon University 1966 Time-series analysis. Least squares. Smoothing (Numerical analysis) Extrapolation. 1966-01-01 00:00:00 Journal contribution https://kilthub.cmu.edu/articles/journal_contribution/Extrapolating_time_series_by_discounted_least_squares/6477413 Mathematics Technical Report