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Improving Initial Compression Ratio for Lempel-Ziv (LZ) Compressed Files

IP.com Disclosure Number: IPCOM000028537D
Original Publication Date: 2004-May-19
Included in the Prior Art Database: 2004-May-19

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In many domains, a subset of the symbols (characters, words, phrases, ...) used in a compressed document is known to the sending and receiving application. Applications include XML documents, where the DTD (Document Type Definition) has to be known by both processing ends. This knowledge can be used to improve the compression ratio and reduce the amount of data having to be transferred.