Underlying Behavioral Parameters of the Operation of Touch-Input Devices: Biases, Models, and Feedback
研究了红外触摸输入设备在不同倾角下的操作偏差，发现用户倾向于触摸目标左下方，且偏差随倾角增大而增加；基于个体表现的模型比基于群体平均的模型更有效减少偏差，并讨论了训练作为替代方案。
Touch-entry devices have exhibited a number of advantages in relatively low-resolution applications. Requirements for high-resolution input must, however, take into account the inherent biases and limitations of the operator. In this study performance biases in the use of an infrared touch-input device were examined with the input (display) surface at various declinations. A general bias to touch low and to the right of targets was found, the low bias increasing with increasing display declination. Attempts to reduce bias error through simple models based upon earlier trials were more effective when derived from individual performances rather than populational behavior (averages). Handedness effects on performance were also found. Training is discussed as a viable alternative, along with preliminary training results.