Unsupervised Keyphrase Rubric Relationship Classification in Complex Assignments
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Complex assignments are open-ended question with varying content irrespective of diversity of course and mode of communication. With sheer scale comes issue of reviews that are incomplete and lack details leading to high regrading requests. As such to automatically relate the contents of assignments to scoring rubric, in this work we present a very first work on keyphrase-rubric relationship classification i.e. we will try to relate the contents to rubrics by solving it as classification problem. In this study, we analyze both supervised and unsupervised methods to find that supervised approaches outperform unsupervised approaches and topic modelling approaches, despite data limitation with supervised approaches producing maximum results of 0.48 F1-Score and unsupervised approach producing best result of 0.31 F1-Score. We further present exhaustive experimentation and cluster analysis using multiple metrics identifying cases where the unsupervised and supervised methods are usable.
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