Touch-stroke dynamics authentication using temporal regression forest

Shih Yin Ooi, Andrew Beng Jin Teoh

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Touch-stroke dynamics is a relatively recent behavioral biometrics. It authenticates an individual by observing his behavior when swiping a 'stroke' on a smartphone or tablet. Several studies have attempted to determine the optimum authentication accuracy of classifiers, but none of them has used time series or temporal machine learning techniques. We postulate that when a user performs a series of touch strokes in a continuous manner, it can be perceived as a temporal behavior characteristic of the person. In this letter, we propose the use of a temporal regression forest to unearth this hidden but vital temporal information. By incorporating this temporal information in the authentication process, the proposed model is able to achieve average equal error rates of ∼4.0% and ∼2.5% on the Serwadda dataset and Frank dataset, respectively.

Original languageEnglish
Article number8713391
Pages (from-to)1001-1005
Number of pages5
JournalIEEE Signal Processing Letters
Issue number7
Publication statusPublished - 2019 Jul

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering
  • Applied Mathematics


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