Huffman Coding with Gap Arrays for GPU Acceleration Naoya Yamamoto, Koji Nakano, Yasuaki Ito, Daisuke Takafuji Hiroshima University Akihiko Kasagi, Tsuguchika Tabaru Fujitsu Laboratories ICPP2020: Huffman Coding with Gap Arrays for GPU Acceleration 1 Huffman coding • Lossless data compression scheme • Used in many data compression formats: • gzip, zip, png, jpg, etc. • Uses a codebook: mapping of