2004 年 31 巻 2 号 p. 67-87
With the aim of removing human errors and providing critical feedback and suggestions for improvement, considerable research has be done on computer-based automated essay-scoring systems. Examples of these include e-rater, PEG, IEA, IntelliMetric, and BETSY. This paper summarizes how these systems work in an attempt to comprehend their features. They are also compared. An automated Japanese essay-scoring system named Jess is introduced, including our analysis of its performance. Lastly, difficulties caused by its treatment of Japanese passages and related problems are discussed.