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Design and Implementation of an Automatic Scoring Model Using a Voting Method for Descriptive Answers

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2013, 18(8), pp.17-25
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

허정만 1 So-Young Park 2

1상명대학교 디지털미디어학부
2상명대학교

Accredited

ABSTRACT

TIn this paper, we propose a model automatically scoring a student's answer for a descriptive problem by using a voting method. Considering the model construction cost, the proposed model does not separately construct the automatic scoring model per problem type. In order to utilize features useful for automatically scoring the descriptive answers, the proposed model extracts feature values from the results, generated by comparing the student's answer with the answer sheet. For the purpose of improving the precision of the scoring result, the proposed model collects the scoring results classified by a few machine learning based classifiers, and unanimously selects the scoring result as the final result. Experimental results show that the single machine learning based classifier C4.5 takes 83.00% on precision while the proposed model improve the precision up to 90.57% by using three machine learning based classifiers C4.5, ME, and SVM.

Citation status

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