Title :
Corrections to `Gradient algorithms for designing predictive vector quantizers´
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA
fDate :
3/1/1991 12:00:00 AM
Abstract :
An error in a paper by Chang and Gray (see ibid., vol.34, no.4, p.679-90, 1986) is pointed out and corrected. The error invalidates their observation that the generalized Lloyd algorithm is a gradient descent technique but the generalized Lloyd algorithm is a member of the related class of coordinate descent techniques. Convergence rate analysis of gradient descent algorithms for vector quantizer design is provided
Keywords :
convergence of numerical methods; data compression; encoding; filtering and prediction theory; speech analysis and processing; convergence rate analysis; generalized Lloyd algorithm; gradient descent algorithms; predictive vector quantizers; speech coding; Algorithm design and analysis; Computer errors; Convergence; Damping; Equations; Error correction; Iterative algorithms; Prediction algorithms; Signal processing algorithms; Speech;
Journal_Title :
Signal Processing, IEEE Transactions on
