Method and apparatus for using wavelets to produce data...

Details Method and apparatus for using wavelets to produce data... Method and apparatus for using wavelets to produce data...

2007-11-13

2007-11-13

Wong, Don (Department: 2163)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

11253141

ABSTRACT:
A system and method are provided for summarizing dynamic data from distributed sources through the use of wavelets. The method comprises receiving a first data signal at a first location, where the first data signal is dynamic, determining a first array sketch of the first data signal and constructing a first wavelet representation by manipulating the first array sketch with a B-term wavelet expansion to produce a first representation. The method further comprises receiving a second data signal at a second location, where the second data signal is dynamic and where the second location is distinct from the first location, determining a second array sketch of the second data signal, and constructing a second wavelet representation by manipulating the second array sketch with a B-term wavelet expansion to produce a second representation. In one embodiment, the method further comprises obtaining first and second array sketches from first and second locations respectively, and constructing a wavelet representation of a linear combination of the first and second array sketches. In one embodiment, the expansion is done using a Haar wavelet.

REFERENCES:
patent: 6718346 (2004-04-01), Brown et al.
patent: 6760724 (2004-07-01), Chakrabarti et al.
patent: 6871165 (2005-03-01), Aggarwal
patent: 6882997 (2005-04-01), Zhang et al.
patent: 2003/0204499 (2003-10-01), Shahabi et al.
patent: 2006/0007858 (2006-01-01), Fingerhut et al.

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