Attribute segments and data table bias reduction

US7949639B2 · kind B2 · utility

Assignee

• SymphonyIRI Group, Inc. · US

Inventors

• Herbert Dennis Hunt · Bedford, US
• John Randall West · Sunnyvale, US
• Marshall Ashby Gibbs · Clarendon Hills, US
• Bradley Michael Griglione · Lake Zurich, US
• Gregory David Neil Hudson · Riverside, US
• Andrea Basilico · Saronno, IT
• Arvid C. Johnson · Frankfort, US
• Cheryl G. Bergeon · Arlington Heights, US
• Craig Joseph Chapa · Lake Barrington, US
• Alberto Agostinelli · Trezzo sull'Adda, IT
• Jay Alan Yusko · Lombard, US
• Trevor Mason · Bolingbrook, US

Key dates

• Filing date: Jan 29, 2008
• Grant date: May 24, 2011
• Expiry date: Mar 26, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q30/02
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

The present invention provides a method for updating data sources. The method may include identifying a plurality of data sources, identifying a plurality of overlapping attribute segments to use for comparing the data sources, calculating a factor as a function of each of the plurality of overlapping attribute segments, and using the factors to update a first group of values in the second data source to reduce bias. Further, at least a first data source is more accurate than a second data source.