Experimental study of an underactuated manipulator. - Marcel Bergerman; Christopher Lee 001; Yangsheng Xu (IROS (2), 1995)

A dynamic coupling index for underactuated manipulators. - Marcel Bergerman; Christopher Lee 001; Yangsheng Xu (J. Field Robotics, 1995)

Online, interactive learning of gestures for human/robot interfaces. - Christopher Lee 001; Yangsheng Xu (ICRA, 1996)

A separable combination of wheeled rover and arm mechanism: (DM)2. - Yangsheng Xu; Christopher Lee 001; H. Benjamin Brown Jr. (ICRA, 1996)

Message-Based Evaluation for High-Level Robot Control. - Christopher Lee 001; Yangsheng Xu (ICRA, 1998)

Reduced-dimension representations of human performance data for human-to-robot skill transfer. - Christopher Lee 001; Yangsheng Xu (IROS, 1998)

Message-Based Evaluation in Scheme for High-Level Robot Control. - Christopher Lee 001; Yangsheng Xu (J. Intell. Robotic Syst., 1999)

Trajectory Fitting with Smoothing Splines using Velocity Information. - Christopher Lee 001; Yangsheng Xu (ICRA, 2000)

Engagement rules for human-robot collaborative interactions. - Candace L. Sidner; Christopher Lee 001 (SMC, 2003)

Nodding in conversations with a robot. - Christopher Lee 001; Neal Lesh; Candace L. Sidner; Louis-Philippe Morency; Ashish Kapoor; Trevor Darrell (CHI Extended Abstracts, 2004)

Where to look: a study of human-robot engagement. - Candace L. Sidner; Cory D. Kidd; Christopher Lee 001; Neal Lesh (IUI, 2004)

Contextual recognition of head gestures. - Louis-Philippe Morency; Candace L. Sidner; Christopher Lee 001; Trevor Darrell (ICMI, 2005)

Explorations in engagement for humans and robots. - Candace L. Sidner; Christopher Lee 001; Cory D. Kidd; Neal Lesh; Charles Rich (Artif. Intell., 2005)

Robots as laboratory hosts. - Candace L. Sidner; Christopher Lee 001 (Interactions, 2005)

The Role of Context in Head Gesture Recognition. - Louis-Philippe Morency; Candace L. Sidner; Christopher Lee 001; Trevor Darrell (AAAI, 2006)

The effect of head-nod recognition in human-robot conversation. - Candace L. Sidner; Christopher Lee 001; Louis-Philippe Morency; Clifton Forlines (HRI, 2006)

The Initiation of Engagement by a Humanoid Robot. - Candy L. Sidner; Christopher Lee 001 (AAAI Spring Symposium: Multidisciplinary Collaboration for Socially Assistive Robotics, 2007)

Head gestures for perceptual interfaces: The role of context in improving recognition. - Louis-Philippe Morency; Candace L. Sidner; Christopher Lee 001; Trevor Darrell (Artif. Intell., 2007)