The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2008
Filed:
Mar. 22, 2005
Dan Steinberg, San Diego, CA (US);
Scott Cardell, San Diego, CA (US);
Dan Steinberg, San Diego, CA (US);
Scott Cardell, San Diego, CA (US);
Salford Systems, San Diego, CA (US);
Abstract
The present invention provides a method and system for imposing constraints on the induction of decision trees to control where in the decision tree, and in what order specific attributes may be used as node splitters. The invention is used to force a decision tree to contain a specified attribute in one or more locations, or to require the construction of a decision tree in which nodes split using one group of attributes always appear above or always appear below nodes using another group of attributes. This constrained tree is grown and optionally pruned in the same way that a prior art tree is grown and optionally pruned, subject only to the constraints imposed by the method of the present invention.