07356187 is referenced by 26 patents and cites 12 patents.

An information need can be modeled by a binary classifier such as support vector machine (SVM). SVMs can exhibit very conservative precision oriented behavior when modeling information needs. This conservative behavior can be overcome by adjusting the position of the hyperplane, the geometric representation of a SVM. The present invention describes a couple of automatic techniques for adjusting the position of an SVM model based upon a beta-gamma thresholding procedure, cross fold validation and retrofitting. This adjustment technique can also be applied to other types of learning strategies.

Title
Method and apparatus for adjusting the model threshold of a support vector machine for text classification and filtering
Application Number
10/822327
Publication Number
7356187 (B2)
Application Date
April 12, 2004
Publication Date
April 8, 2008
Inventor
David A Evans
Pittsburgh
PA, US
Norbert Roma
Pittsburgh
PA, US
James G Shanahan
Pittsburgh
PA, US
Agent
Jones Day
Blaney Harper
Assignee
Clairvoyance Corporation
PA, US
IPC
G06K 9/62
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