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:
Aug. 04, 2009
Filed:
Feb. 01, 2006
Shiby Thomas, Nashua, NH (US);
Wei LI, San Carlos, CA (US);
Joseph Yarmus, Groton, MA (US);
Mahesh Jagannath, Shrewsbury, MA (US);
Ari W. Mozes, Lexington, MA (US);
Shiby Thomas, Nashua, NH (US);
Wei Li, San Carlos, CA (US);
Joseph Yarmus, Groton, MA (US);
Mahesh Jagannath, Shrewsbury, MA (US);
Ari W. Mozes, Lexington, MA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
A method, system, and computer program product for counting predictor-target pairs for a decision tree model provides the capability to generate count tables that is quicker and more efficient than previous techniques. A method of counting predictor-target pairs for a decision tree model, the decision tree model based on data stored in a database, the data comprising a plurality of rows of data, at least one predictor and at least one target, comprises generating a bitmap for each split node of data stored in a database system by intersecting a parent node bitmap and a bitmap of a predictor that satisfies a condition of the node, intersecting each split node bitmap with each predictor bitmap and with each target bitmap to form intersected bitmaps, and counting bits of each intersected bitmap to generate a count of predictor-target pairs.