Linde–Buzo–Gray algorithm
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The Linde–Buzo–Gray algorithm (introduced by Yoseph Linde, Andrés Buzo and Robert M. Gray in 1980) is a vector quantization algorithm to derive a good codebook.
It is similar to the k-means method in data clustering.
The algorithm
At each iteration, each vector is split into two new vectors.
- A initial state: centroid of the training sequence;
- B initial estimation #1: code book of size 2;
- C final estimation after LGA: Optimal code book with 2 vectors;
- D initial estimation #2: code book of size 4;
- E final estimation after LGA: Optimal code book with 4 vectors;
References
- The original paper describing the algorithm, as an extension to Lloyd's algorithm:
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External links
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