Lossless Compression: Lempel-Ziv
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Lossless Compression: Lempel-Ziv
Lempel-Ziv lossless compression algorithm. It was published in 1978 (LZ78) and improved by Welch in 1984 leading to the popular LZW compression. This video covers the key insight in their paper: how to construct a codebook that doesn't need to be shared with the sender. It's a subtle, yet beautiful idea which is still in use today.
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