Accurate • Applicable • Approximate • Approximation • Basis • Best • Better • Capture • Combination • Common • Complexity • Computationally • Continuous • Control • Difficult • Discrete • Error • Expensive • Functions • Goal • Include • Linear • Measured • Method • Metrics • Networks • Non • Nonlinear • Number • Original • Processing • Provide • Provides • Regularization • Relationships • Representation • Role • Signal • Signals • Smallest • Solve • Some • Squared • Than • Uses • Using • Visual • Wavelets • Whereas • While