| 摘要 |
A method of compressing an electronic file is provided. The method comprises reading a first electronic file in reverse order sequence from bottom to top, while reading the first file, identifying patterns in a content of the first file and while reading the first file, building a dictionary comprising a plurality of entries, each entry defining an association of a code to one of the patterns identified in the content of the first file. The method further comprises, while reading the first file, building a second electronic file that is a compressed version of the first file, wherein the second electronic file comprises a compressed content portion and a dictionary portion, wherein the compressed content portion comprises codes from the dictionary and wherein the dictionary portion comprises the dictionary.
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