Compression protocol with multiple preset dictionaries

Details Compression protocol with multiple preset dictionaries Compression protocol with multiple preset dictionaries

1997-10-29

1999-09-14

Harrell, Robert B.

G06F 1300

Patent

active

059535032

ABSTRACT:
In a distributed network, client computers are connected to server computers. The server computers store a plurality of Web pages. The Web pages are partitioned into sets, where each set includes Web pages that are substantially similar in content. A preset compression dictionary is generated for each set of Web pages. In addition, a fingerprint is generated for each preset dictionary. The fingerprints uniquely identify each of the preset dictionaries. When one of the client computers requests one of the Web pages, a compressed form of the Web page is sent along with the fingerprint of the dictionary that was used to compress the Web page. The client computer can then request the preset dictionary in order to decompress the Web page when the client does not have a copy of the preset dictionary.

REFERENCES:
patent: 5579308 (1996-11-01), Humpleman
patent: 5838910 (1998-11-01), Domenikos et al.
Broder; "Some applications of Rabin's fingerprinting method"; Methods in Communications, Security, and Computer Science; pp. 1-10; 1993.
Carter et al. "Universal Classes of Hash Functions" Journal of Computer and System Science; vol. 18 pp. 143-154; 1979.

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