We handle design problems with modeling and optimization. Sometimes this procedure is under question due to the lack of knowledge about the design constraints, especially when human evaluation is involved. In this work we look into the problem of indentifying constraints when they are not physically available and can only be identified by trial. The solution is indeed an application of active l...

This paper is concerned with the minimization of an objective that is the sum of a convex function f and an `1 regularization term. Our interest is in methods that incorporate second-order information about the function f to accelerate convergence. We describe a semi-smooth Newton framework that can be used to generate a variety of second-order methods, including block active-set methods, ortha...

We handle design problems with modeling and optimization. Sometimes this procedure is under question due to the lack of knowledge about the design constraints, especially when human evaluation is involved. In this work we look into the problem of identifying constraints when they are not physically available and can only be identified by trial. The solution is indeed an application of active le...

This paper develops an entire communication support system for speech handicaps using lip reading. Our system is a high level system and consists of a face detector using Viola-jones method, lip detector based on active appearance model, utterance section detector, determined phrase recognizer using DP matching, camera controller, and message output. We implemented our system in the commercial ...