Although there have been a great many applications of machine learning in text classification for information retrieval, there have been relatively few within an educational context, and most of them have been aimed at inferring dialog acts , for example [14]. More similar approaches to ours include Larkey’s [15] comparison of k- nearest neighbor, naıve Bayes and linear regression classifiers in as signing grades to student essays. Sathiyamurthy and Geetha [16] built a text classification system which used part-of-speech tagging to aligne- learning
documents acc ording to an ACM domain ontology, allowing the documents to be classified according to Bloom’s taxonomy [17]. Yilm aze let al [18] used an SVM algorithm to perform text categorization for automatically aligning curricular documents with state and federal science benchmarks.
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