Omnis Prædictio: Estimating the full spectrum of human performance with stroke gestures

Luis A. Leiva*, Radu Daniel Vatavu, Daniel Martín-Albo, Réjean Plamondon

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Designing effective, usable, and widely adoptable stroke gesture commands for graphical user interfaces is a challenging task that traditionally involves multiple iterative rounds of prototyping, implementation, and follow-up user studies and controlled experiments for evaluation, verification, and validation. An alternative approach is to employ theoretical models of human performance, which can deliver practitioners with insightful information right from the earliest stages of user interface design. However, very few aspects of the large spectrum of human performance with stroke gesture input have been investigated and modeled so far, leaving researchers and practitioners of gesture-based user interface design with a very narrow range of predictable measures of human performance, mostly focused on estimating production time, of which extremely few cases delivered accompanying software tools to assist modeling. We address this problem by introducing “Omnis Prædictio” (OMNISfor short), a generic technique and companion web tool that provides accurate user-independent estimations of any numerical stroke gesture feature, including custom features specified in code. Our experimental results on three public datasets show that our model estimations correlate on average rs>0.9 with groundtruth data. OMNISalso enables researchers and practitioners to understand human performance with stroke gestures on many levels and, consequently, raises the bar for human performance models and estimation techniques for stroke gesture input.

Original languageEnglish
Article number102466
JournalInternational Journal of Human Computer Studies
Volume142
DOIs
Publication statusPublished - Oct 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • Estimation
  • Gesture synthesis
  • Gesture user interfaces
  • Human performance
  • Kinematic theory
  • Prediction
  • Stroke gestures
  • Touch gestures

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  • Projects

    Department of Communications and Networking

    Oulasvirta, A., Leiva, L., Laine, M. & Todi, K.

    01/09/201831/08/2022

    Project: Academy of Finland: Other research funding

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