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:
Apr. 13, 2004
Filed:
Apr. 04, 2001
Vijay S. Iyengar, Cortlandt Manor, NY (US);
Jonathan Lee, Yorktown Heights, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method is provided for ranking a plurality of items. The method comprises initializing a (D−1) dimensional weight space including a feasible region, where D is equal to a number of attributes and a point in the weight space corresponds to each attribute, determining an item pair, and querying a user to select an item from among the item pair. The method further includes reducing the feasible region based upon a user's item selection, and ranking the items according a ranking point in a reduced feasible region. The ranking point is a center of the reduced feasible region, wherein the center is one of a vertex barycenter and center of gravity. The ranking point corresponds to a users item selection. The method includes the step of selecting a plurality of hyperplanes, each hyperplane corresponding to an item pair such that the hyperplane divides the feasible region into two substantially equal portions.