Apparatus for searching and managing compressed files

Details Apparatus for searching and managing compressed files Apparatus for searching and managing compressed files

2009-01-28

2011-10-11

Ali, Mohammad (Department: 2158)

Data processing: database and file management or data structures

Data integrity

Fragmentation, compaction and compression

C707S623000, C707S667000, C707S673000, C707S737000

Reexamination Certificate

active

08037035

ABSTRACT:
A computer-readable, non-transitory medium stores a program that manages compressed file groups on a plurality of slave servers. The file groups include compressed files that are to be searched and have character strings. Each of the compressed file groups is expanded, using a Huffman tree that was used for compressing the compressed file group. A common compression parameter is generated based on appearance frequency, by summing, for each character, the appearance frequency in each of the compressed file groups. The expanded files are recompressed using the common Huffman tree such that sums of the access frequencies of the compressed files that are origins of the recompressed files are substantially equivalent among various slave servers. New archives including the re-compressed files are transmitted to the respective slave servers.

REFERENCES:
patent: 5333313 (1994-07-01), Heising
patent: 5532694 (1996-07-01), Mayers et al.
patent: 5748121 (1998-05-01), Romriell
patent: 6061398 (2000-05-01), Satoh et al.
patent: 6112208 (2000-08-01), Ikegami
patent: 6650256 (2003-11-01), Kondo et al.
patent: 7307552 (2007-12-01), Ma et al.
patent: 7688233 (2010-03-01), Schneider
patent: 2001/0043745 (2001-11-01), Friederich et al.
patent: 2004/0001543 (2004-01-01), Adams et al.
patent: 2008/0098024 (2008-04-01), Kataoka et al.
patent: 2008/0201718 (2008-08-01), Zohar
patent: WO 2006/123448 (2006-11-01), None
A. Bookstein, S.T. Klein, and D.A. Zi. 1992, A systematic approach to compressing a full-text retrieval system. Information Processing & Management.
Brisaboa, N., Iglesias, E. L., Navarro, G., & Paramá, J. R. (2003b). An efficient compression code for text databases. In Proceedings of the 25th European Conference on IR Research (ECIR'03) (pp. 468-481). LNCS 2633, Springer-Verlag.
Saeed,F et al. “Data compression with Huffman coding; an efficient dynamic implementation using file partitioning”, proceedings of the 1990 symposium on applied computing, 1990, pp. 348-354.

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