Physics-based graphical keyboard design. - Michael A. Hunter; Shumin Zhai; Barton A. Smith (CHI Extended Abstracts, 2000)

The metropolis keyboard - an exploration of quantitative techniques for virtual keyboard design. - Shumin Zhai; Michael A. Hunter; Barton A. Smith (UIST, 2000)

Constrained Principal Component Analysis: A Comprehensive Theory. - Yoshio Takane; Michael A. Hunter (Appl. Algebra Eng. Commun. Comput., 2001)

Performance Optimization of Virtual Keyboards. - Shumin Zhai; Michael A. Hunter; Barton A. Smith (Hum. Comput. Interact., 2002)