System for estimating the temporal validity of location...

Details System for estimating the temporal validity of location... System for estimating the temporal validity of location...

2006-06-06

2006-06-06

Gaffin, Jeffrey (Department: 2165)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000

Reexamination Certificate

active

07058668

ABSTRACT:
Analysis of a history of previous location reports received from a tracked entity is performed and this analysis is utilized to estimate the relevance of future location reports over time. This is accomplished via associating a computed expiration time with each location report, wherein this expiration time is used by an application to estimate the relevance degradation of a location report over time. Thus, the expiration time value acts as a threshold that controls the shape of a relevance degradation curve of a location report.

REFERENCES:
patent: 6195622 (2001-02-01), Altschuler et al.
patent: 6603428 (2003-08-01), Stilp
patent: 6873290 (2005-03-01), Anderson et al.
patent: 2002/0087649 (2002-07-01), Horvitz

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