Relating Eye-Tracking Measures With Changes In Knowledge on Search Tasks
Abstract
We conducted an eye-tracking study where 30 participants performed searches on the web. We measured their topical knowledge before and after each task. Their eye-fixations were labelled as "reading" or "scanning". The series of reading fixations in a line, called "reading-sequences" were characterized by their length in pixels, fixation duration, and the number of fixations making up the sequence. We hypothesize that differences in knowledge-change of participants are reflected in their eye-tracking measures related to reading. Our results show that the participants with higher change in knowledge differ significantly in terms of their total reading-sequence-length, reading-sequence-duration, and number of reading fixations, when compared to participants with lower knowledge-change.
- Publication:
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arXiv e-prints
- Pub Date:
- May 2018
- DOI:
- 10.48550/arXiv.1805.02399
- arXiv:
- arXiv:1805.02399
- Bibcode:
- 2018arXiv180502399B
- Keywords:
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- Computer Science - Human-Computer Interaction;
- Computer Science - Information Retrieval;
- Computer Science - Machine Learning
- E-Print:
- ACM Symposium on Eye Tracking Research and Applications (ETRA), June 14-17, 2018, Warsaw, Poland