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Dual input stream transformer for vertical drift correction in eye-tracking reading data.

Mercier, T. M., Budka, M., Vasilev, M. R., Kirkby, J. A., Angele, B. and Slattery, T. J., 2024. Dual input stream transformer for vertical drift correction in eye-tracking reading data. IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI). (In Press)

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DOI: 10.1109/TPAMI.2024.3411938


We introduce a novel Dual Input Stream Transformer (DIST) for the challenging problem of assigning fixation points from eye-tracking data collected during passage reading to the line of text that the reader was actually focused on. This post-processing step is crucial for analysis of the reading data due to the presence of noise in the form of vertical drift. We evaluate DIST against eleven classical approaches on a comprehensive suite of nine diverse datasets. We demonstrate that combining multiple instances of the DIST model in an ensemble achieves high accuracy across all datasets. Further combining the DIST ensemble with the best classical approach yields an average accuracy of 98.17 %. Our approach presents a significant step towards addressing the bottleneck of manual line assignment in reading research. Through extensive analysis and ablation studies, we identify key factors that contribute to DIST's success, including the incorporation of line overlap features and the use of a second input stream. Via rigorous evaluation, we demonstrate that DIST is robust to various experimental setups, making it a safe first choice for practitioners in the field.

Item Type:Article
Uncontrolled Keywords:Machine Learning; Psychology; Pattern Recognition; Artificial Intelligence; Computer vision
Group:Faculty of Science & Technology
ID Code:40059
Deposited By: Symplectic RT2
Deposited On:25 Jun 2024 15:17
Last Modified:25 Jun 2024 15:17


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