Title
Sketch recognition algorithms for comparing complex and unpredictable shapes
Abstract
In an introductory Engineering course with an annual enrollment of over 1000 students, a professor has little option but to rely on multiple choice exams for midterms and finals. Furthermore, the teaching assistants are too overloaded to give detailed feedback on submitted homework assignments. We introduce Mechanix, a computer-assisted tutoring system for engineering students. Mechanix uses recognition of freehand sketches to provide instant, detailed, and formative feedback as the student progresses through each homework assignment, quiz, or exam. Free sketch recognition techniques allow students to solve free-body diagram and static truss problems as if they were using a pen and paper. The same recognition algorithms enable professors to add new unique problems simply by sketching out the correct answer. Mechanix is able to ease the burden of grading so that instructors can assign more free response questions, which provide a better measure of student progress than multiple choice questions do.
Year
DOI
Venue
2011
10.5591/978-1-57735-516-8/IJCAI11-406
IJCAI
Keywords
Field
DocType
sketch recognition algorithm,multiple choice exam,recognition algorithm,free response question,engineering student,student progress,detailed feedback,free sketch recognition technique,homework assignment,unpredictable shape,multiple choice question,formative feedback
Grading (education),Computer science,Sketch recognition,Artificial intelligence,Recognition algorithm,Machine learning,Formative assessment,Multiple choice
Conference
Citations 
PageRank 
References 
10
0.81
11
Authors
4
Name
Order
Citations
PageRank
Martin Field1243.27
Stephanie Valentine2353.31
Julie Linsey35512.39
Tracy Hammond444343.21