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NCJ Number: 249178 Find in a Library
Title: Temporal Sequences Quantify the Contributions of Individual Fixations in Complex Perceptual Matching Tasks
Journal: Cognitive Science  Volume:37  Issue:4  Dated:May/June 2013  Pages:731-756
Author(s): Thomas Busey; Chen Yu; Dean Wyatte; John Vanderkolk
Date Published: June 2013
Page Count: 28
Sponsoring Agency: National Institute of Justice (NIJ)
Washington, DC 20531
Grant Number: 2009-DN-BX-K226 ; 2005-MU-BX-K076
Document: HTML
Type: Report (Grant Sponsored); Report (Study/Research); Research (Applied/Empirical)
Format: Article; Document (Online)
Language: English
Country: United States of America
Annotation: This study applied techniques developed for machine translation to the gaze data recorded from a complex perceptual matching task modeled after fingerprint examinations.
Abstract: Perceptual tasks - such as object matching, mammogram interpretation, mental rotation, and satellite imagery - often require the assignment of correspondence to fuse information across views. The gaze data provide temporal sequences that the machine translation algorithm uses to estimate the subjects’ assumptions of corresponding regions. The study results show that experts and novices had similar surface behavior, such as the number of fixations made or the duration of fixations; however, the approach applied to data from experts was able to identify more corresponding areas between two prints. The fixations that were associated with clusters that map with high probability to corresponding location on the other prints were likely to have greater utility in a visual matching task. These techniques address a fundamental problem in eye tracking research with perceptual matches tasks. Given that the eyes always point somewhere, which fixations are the most informative and therefore are likely to be relevant for the comparison task? (Publisher abstract modified)
Main Term(s): Criminology
Index Term(s): Fingerprints; NIJ grant-related documents; NIJ Resources; Suspect identification; Victim identification
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