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Published in: Soft Computing 3/2011

01-03-2011 | Focus

Method of verifying declared identity in optical answer sheets

Authors: Joseph A. Levi, Yosef A. Solewicz, Yael Dvir, Yisca Steinberg

Published in: Soft Computing | Issue 3/2011

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Abstract

In the use of optical answer sheet examinations, occasionally the identity of the examinee is in question. A novel method for characterizing the personal quality of mark shapes in optically read answer sheets is described. The method may be used to identify imposters in multiple choice examinations. All the marks are segmented and measured in multiple parameters including area, dimensions, perimeter and optical density. Imposter decisions are made on the collected data by comparing an identified test form against the form in question in comparison with a population using SVM (support vector machine) modeling. In testing the method, 300 test forms from 100 examinees from past tests were used. An EER (equal error rate) of 15–17% was found. While performance of the presented method is currently insufficient for practical purposes, future research options have been mentioned.

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Metadata
Title
Method of verifying declared identity in optical answer sheets
Authors
Joseph A. Levi
Yosef A. Solewicz
Yael Dvir
Yisca Steinberg
Publication date
01-03-2011
Publisher
Springer-Verlag
Published in
Soft Computing / Issue 3/2011
Print ISSN: 1432-7643
Electronic ISSN: 1433-7479
DOI
https://doi.org/10.1007/s00500-009-0526-x

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