Specifying gestures by example
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Gestures without libraries, toolkits or training: a $1 recognizer for user interface prototypes
Proceedings of the 20th annual ACM symposium on User interface software and technology
PaleoSketch: accurate primitive sketch recognition and beautification
Proceedings of the 13th international conference on Intelligent user interfaces
Newton's Pen: A pen-based tutoring system for statics
Computers and Graphics
The Andes Physics Tutoring System: Lessons Learned
International Journal of Artificial Intelligence in Education
An image-based, trainable symbol recognizer for hand-drawn sketches
Computers and Graphics
LADDER, a sketching language for user interface developers
Computers and Graphics
SOUSA: sketch-based online user study applet
SBM'08 Proceedings of the Fifth Eurographics conference on Sketch-Based Interfaces and Modeling
CogSketch: open-domain sketch understanding for cognitive science research and for education
SBM'08 Proceedings of the Fifth Eurographics conference on Sketch-Based Interfaces and Modeling
Defining precise measurements with sketched annotations
Proceedings of the Eighth Eurographics Symposium on Sketch-Based Interfaces and Modeling
Initial approaches for extending sketch recognition to beyond-surface environments
CHI '12 Extended Abstracts on Human Factors in Computing Systems
Using scribble gestures to enhance editing behaviors of sketch recognition systems
CHI '12 Extended Abstracts on Human Factors in Computing Systems
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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.