Scaled exponential smoothing for real time histogram

Details Scaled exponential smoothing for real time histogram Scaled exponential smoothing for real time histogram

2011-01-04

2011-01-04

Vital, Pierre M (Department: 2156)

Data processing: measuring, calibrating, or testing

Measurement system

Statistical measurement

C703S002000

Reexamination Certificate

active

07865332

ABSTRACT:
A system, method and program product for processing a stream of data events using scaled exponential smoothing for maintaining a histogram. A system is provided having: a set of histogram data that maintains a running value for each of a plurality of buckets; a bucket identification system for identifying a bucket b into which a new data event value belongs; an exponential smoothing system that applies a decay factor to the set of histogram data utilizing a first algorithm for the running value associated with bucket b, and a second algorithm for each remaining running value; and an analysis system for analyzing data event values in view of the histogram data.

REFERENCES:
patent: 6229439 (2001-05-01), Tice
patent: 6483555 (2002-11-01), Thielemans et al.
patent: 2007/0208437 (2007-09-01), Schindler
patent: 2007/0239580 (2007-10-01), Ciampi
patent: 2008/0109383 (2008-05-01), Jaffe

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