Improving Domain Generalization for Prompt-Aware Essay Scoring via Disentangled Representation Learning
Zhiwei Jiang, Tianyi Gao, Yafeng Yin, Meng Liu, Hua Yu, Zifeng Cheng, Qing Gu
Main: NLP Applications Main-poster Paper
Poster Session 2: NLP Applications (Poster)
Conference Room: Frontenac Ballroom and Queen's Quay
Conference Time: July 10, 14:00-15:30 (EDT) (America/Toronto)
Global Time: July 10, Poster Session 2 (18:00-19:30 UTC)
Keywords:
educational applications, gec, essay scoring
TLDR:
Automated Essay Scoring (AES) aims to score essays written in response to specific prompts.
Many AES models have been proposed, but most of them are either prompt-specific or prompt-adaptive and cannot generalize well on "unseen" prompts.
This work focuses on improving the generalization ability of...
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Abstract:
Automated Essay Scoring (AES) aims to score essays written in response to specific prompts.
Many AES models have been proposed, but most of them are either prompt-specific or prompt-adaptive and cannot generalize well on "unseen" prompts.
This work focuses on improving the generalization ability of AES models from the perspective of domain generalization, where the data of target prompts cannot be accessed during training.
Specifically, we propose a prompt-aware neural AES model to extract comprehensive representation for essay scoring, including both prompt-invariant and prompt-specific features.
To improve the generalization of representation, we further propose a novel disentangled representation learning framework.
In this framework, a contrastive norm-angular alignment strategy and a counterfactual self-training strategy are designed to disentangle the prompt-invariant information and prompt-specific information in representation.
Extensive experimental results on datasets of both ASAP and TOEFL11 demonstrate the effectiveness of our method under the domain generalization setting.