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Corrections to `Gradient algorithms for designing predictive vector quantizers'

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1 Author(s)
Zeger, K. ; Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA

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

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Signal Processing, IEEE Transactions on  (Volume:39 ,  Issue: 3 )