Data Compression

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卡片总数: 4 张•内容版本: v4•公开卡包•更新时间: 8/1/2026

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正面 (问题)

Compression

背面 (解答)

Reducing file size to reduce download times and storage requirements

正面 (问题)

Lossy compression

背面 (解答)

Removing data from a file in order to reduce its size. It is not possible to restore the file to its original.

正面 (问题)

Lossless compression

背面 (解答)

A compression technique where no data is lost and it is possible to restore to the original file

正面 (问题)

Huffman coding

背面 (解答)

A data compression technique which varies the length of the encoded symbol in proportion to its information content. The elements with the highest frequency gets assigned the shortest encoding (with the fewest bits), the elements with the lowest frequency gets the longest encoding (more bits).