Finding a Tradeoff between Accuracy and Rater's Workload in Grading Clustered Short Answers

LREC 2014 Andrea HorbachAlexis PalmerMagdalena Wolska

n this paper we investigate the potential of answer clustering for semi-automatic scoring of short answer questions for German as a foreign language. We use surface features like word and character n-grams to cluster answers to listening comprehension exercises per question and simulate having human graders only label one answer per cluster and then propagating this label to all other members of the cluster... (read more)

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