Reasoning about Algebraic Answers in Physics. - Chun Wai Liew; Joel A. Shapiro; Donald E. Smith (FLAIRS, 1999)

What is Wrong with this Equation? Error Detection and Feedback with Physics Equations. - Chun Wai Liew; Joel A. Shapiro; Donald E. Smith (FLAIRS, 2000)

A Representational Paradigm for Dynamic Resource Transformation Problems. - Warren B. Powell; Joel A. Shapiro; Hugo P. Simão (Ann. Oper. Res., 2001)

A Flexible Java Representation for Uncertainty in Online Operations-Research Models. - Joel A. Shapiro; Warren B. Powell; David Bernstein (INFORMS J. Comput., 2001)

An Adaptive Dynamic Programming Algorithm for the Heterogeneous Resource Allocation Problem. - Warren B. Powell; Joel A. Shapiro; Hugo P. Simão (Transp. Sci., 2002)

Inferring The Context for Evaluating Physics Algebraic Equations When the Scaffolding is Removed. - Chun Wai Liew; Joel A. Shapiro; Donald E. Smith (FLAIRS, 2004)

What Is The Student Referring To? Mapping Properties and Concepts in Students' Systems of Physics Equations. - Chun Wai Liew; Joel A. Shapiro; Donald E. Smith (AIED, 2005)

The Andes Physics Tutoring System: Five Years of Evaluations. - Kurt VanLehn; Collin F. Lynch; Kay G. Schulze; Joel A. Shapiro; Robert Shelby; Linwood Taylor; Donald Treacy; Anders Weinstein; Mary Wintersgill (AIED, 2005)

An Algebra Subsystem for Diagnosing Students' Input in a Physics Tutoring System. - Joel A. Shapiro (Int. J. Artif. Intell. Educ., 2005)

The Andes Physics Tutoring System: Lessons Learned. - Kurt VanLehn; Collin F. Lynch; Kay G. Schulze; Joel A. Shapiro; Robert Shelby; Linwood Taylor; Donald Treacy; Anders Weinstein; Mary Wintersgill (Int. J. Artif. Intell. Educ., 2005)

Determining The Dimensions of Variables in Physics Algebraic Equations. - Chun Wai Liew; Joel A. Shapiro; Donald E. Smith (Int. J. Artif. Intell. Tools, 2005)

A Metastrategy for Large-Scale Resource Management Based on Informational Decomposition. - Joel A. Shapiro; Warren B. Powell (INFORMS J. Comput., 2006)

Understanding Student Answers In Introductory Physics Courses. - Chun Wai Liew; Joel A. Shapiro; Donald E. Smith; Ryan McCall (AIED, 2007)

Knowledge Based Mechanisms for Tutoring Systems in Science and Engineering. - Chun Wai Liew; Joel A. Shapiro; Donald E. Smith (ICTAI (2), 2007)