Model building for the human sciences; A stochastic diffusion theory of price; Prediction and forecasting; Wavelet composition of times seris; Recursive decomposition of stochastic processes; Realizaility and minimum-delay aspects of multichannel models; Stationary processes; Predictive decomposition into Markov and passive components; Automatic algebraic reductions for the ghird order autoregressive process; Sums of stationary random variables; Structural properties of stationary stochastic processes with applications; Estremal representation of stationary stochastic processes; Estremal properties of the wold decomposition; Properties of the wold decomposition of stationary sotchastic processes; Mathematical development of discrete filters for the detection of nuclear explosions; Recursive solution to the multichannel filtering problem; Deconvolution of time series as applied to speech; Waves propagating in random media as statistical time series; Use of the kepstrum in signal analysis; Interative identification of non-invertible autoregressive moving-average systems with seismic applications; Interative least-squares procedure for ARMA spectral estimation; Collection of fortran programs for filtering and spectral analysis of single channel time series.