Chi Hui Lu

US Patent:

61156833, Sep 5, 2000

Filed:

Mar 31, 1997

Appl. No.:

8/828247

Inventors:

Jill C. Burstein - Howell NJ
Randy Mark Kaplan - West Chester PA
Susanne Wolff - New York NY
Chi Lu - Princeton NJ

Assignee:

Educational Testing Service - Princeton NJ

International Classification:

G06F 1730
G06K 900

US Classification:

704 1

Abstract:

A system for carrying out a content-based process for automatically scoring essays is disclosed. The system includes a computer; a data storage device; a parse tree file stored in the data storage device, the parse tree file being representative of an essay in a parse tree format; a morphology stripping program; a concept extraction program for creating, on the basis of a morphology-stripped parse tree file, a phrasal node file; and a rule matching scoring program for scoring the essay on the basis of the phrasal node file.