arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2409.04795cs.CLcs.AIcs.LG
收藏

用于缓解基于神经网络的自动作文评分中偏见的短语级对抗训练

Phrase-Level Adversarial Training for Mitigating Bias in Neural Network-based Automatic Essay Scoring

Eötvös Lorand University(厄特沃什·罗兰大学);University of Groningen(格罗宁根大学)

Haddad Philip, Tsegaye Misikir Tashu

AI总结:

本文提出一种与模型无关的短语级对抗作文生成与数据增强方法,以缓解AES模型对高频样本的偏见,并在多种神经网络评分模型上验证其稳健性与性能提升。

摘要:

自动作文评分(AES)被广泛用于教育目的的考生评估。然而,由于缺乏具有代表性的数据,大多数现有AES系统并不稳健,其评分预测偏向于最具代表性的数据样本。在本研究中,我们提出了一种与模型无关的短语级方法,用于生成对抗作文集,以解决AES模型的偏见和稳健性问题。具体而言,我们构建了一个攻击测试集,其中包含来自原始测试集的样本以及使用我们提出的方法对抗生成的样本。为评估攻击策略和数据增强的有效性,我们利用多种神经网络评分模型进行了综合分析。实验结果表明,所提出的方法在存在对抗样本以及没有此类攻击的场景下,均显著提升了AES模型的性能。

英文摘要:

Automatic Essay Scoring (AES) is widely used to evaluate candidates for educational purposes. However, due to the lack of representative data, most existing AES systems are not robust, and their scoring predictions are biased towards the most represented data samples. In this study, we propose a model-agnostic phrase-level method to generate an adversarial essay set to address the biases and robustness of AES models. Specifically, we construct an attack test set comprising samples from the original test set and adversarially generated samples using our proposed method. To evaluate the effectiveness of the attack strategy and data augmentation, we conducted a comprehensive analysis utilizing various neural network scoring models. Experimental results show that the proposed approach significantly improves AES model performance in the presence of adversarial examples and scenarios without such attacks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑