Patent · US Active

Optimal combination of sampled measurements

US8028055B2 · kind B2 · utility

11Cited by

34References

20Claims

0Family size

Assignee

AT&T Intellectual Property I, L.P. · US

Inventors

Nicholas Duffield · Summit, US
Carsten Lund · Berkeley Heights, US
Mikkel Thorup · Florence, US

Key dates

Filing date	Nov 17, 2008
Grant date	Sep 27, 2011
Priority date	—
Expiry date	Jun 9, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/50
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Two regularized estimators that avoid the pathologies associated with variance estimation are disclosed. The regularized variance estimator adds a contribution to estimated variance representing the likely error, and hence ameliorates the pathologies of estimating small variances while at the same time allowing more reliable estimates to be balanced in the convex combination estimator. The bounded variance estimator employs an upper bound to the variance which avoids estimation pathologies when sampling probabilities are very small.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.