Event-Based Data Acquisition and Reconstruction—Mathematical Background

Thao, Nguyen T.

doi:10.1201/b19013-16

Cited by 7 publications

(1 citation statement)

References 103 publications

(175 reference statements)

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“…Gawthrop et al [25] demonstrate that a simple predictive controller can be consistent with Fitts' law, while non-predictive controllers cannot. The same paper also presents the link between intermittent control, predictive control and human motor control, and further develops this in [24].…”

Section: Models Of Task Performancementioning

confidence: 99%

Control Theoretic Models of Pointing

Müller

Oulasvirta

Murray-Smith

2017

ACM Trans. Comput.-Hum. Interact.

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This article presents an empirical comparison of four models from manual control theory on their ability to model targeting behaviour by human users using a mouse: McRuer's Crossover, Costello's Surge, secondorder lag (2OL), and the Bang-bang model. Such dynamic models are generative, estimating not only movement time, but also pointer position, velocity, and acceleration on a moment-to-moment basis. We describe an experimental framework for acquiring pointing actions and automatically fitting the parameters of mathematical models to the empirical data. We present the use of time-series, phase space, and Hooke plot visualisations of the experimental data, to gain insight into human pointing dynamics. We find that the identified control models can generate a range of dynamic behaviours that captures aspects of human pointing behaviour to varying degrees. Conditions with a low index of difficulty (ID) showed poorer fit because their unconstrained nature leads naturally to more behavioural variability. We report on characteristics of human surge behaviour (the initial, ballistic sub-movement) in pointing, as well as differences in a number of controller performance measures, including overshoot, settling time, peak time, and rise time. We describe trade-offs among the models. We conclude that control theory offers a promising complement to Fitts' law based approaches in HCI, with models providing representations and predictions of human pointing dynamics, which can improve our understanding of pointing and inform design.

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Section: Models Of Task Performancementioning

confidence: 99%