Elizabeth Orwig
2025
Mondrian: A Framework for Logical Abstract (Re)Structuring
Elizabeth Orwig | Shinwoo Park | Hyundong Jin | Yo-Sub Han
Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing
Elizabeth Orwig | Shinwoo Park | Hyundong Jin | Yo-Sub Han
Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing
The well-known rhetorical framework, ABT (And, But, Therefore), mirrors natural human cognition in structuring an argument’s logical progression - apropos to academic communication. However, distilling the complexities of research into clear and concise prose requires careful sequencing of ideas and formulating clear connections between them. This presents a quiet inequitability for contributions from authors who struggle with English proficiency or academic writing conventions. We see this as impetus to introduce: Mondrian, a framework that identifies the key components of an abstract and reorients itself to properly reflect the ABT logical progression. The framework is composed of a deconstruction stage, reconstruction stage, and rephrasing. We introduce a novel metric for evaluating deviation from ABT structure, named EB-DTW, which accounts for both ordinality and a non-uniform distribution of importance in a sequence. Our overall approach aims to improve the comprehensibility of academic writing, particularly for non-native English speakers, along with a complementary metric. The effectiveness of Mondrian is tested with automatic metrics and extensive human evaluation, and demonstrated through impressive quantitative and qualitative results, with organization and overall coherence of an abstract improving by an average of 27.71% and 24.71%.
2023
GDA: Grammar-based Data Augmentation for Text Classification using Slot Information
Joonghyuk Hahn | Hyunjoon Cheon | Elizabeth Orwig | Su-Hyeon Kim | Sang-Ki Ko | Yo-Sub Han
Findings of the Association for Computational Linguistics: EMNLP 2023
Joonghyuk Hahn | Hyunjoon Cheon | Elizabeth Orwig | Su-Hyeon Kim | Sang-Ki Ko | Yo-Sub Han
Findings of the Association for Computational Linguistics: EMNLP 2023
Recent studies propose various data augmentation approaches to resolve the low-resource problem in natural language processing tasks. Data augmentation is a successful solution to this problem and recent strategies give variation on sentence structures to boost performance. However, these approaches can potentially lead to semantic errors and produce semantically noisy data due to the unregulated variation of sentence structures. In an effort to combat these semantic errors, we leverage slot information, the representation of the context of keywords from a sentence, and form a data augmentation strategy which we propose, called GDA. Our strategy employs algorithms that construct and manipulate rules of context-aware grammar, utilizing this slot information. The algorithms extract recurrent patterns by distinguishing words with slots and form the “rules of grammar”—a set of injective relations between a sentence’s semantics and its syntactical structure—to augment the dataset. The augmentation is done in an automated manner with the constructed rules and thus, GDA is explainable and reliable without any human intervention. We evaluate GDA with state-of-the-art data augmentation techniques, including those using pre-trained language models, and the result illustrates that GDA outperforms all other data augmentation methods by 19.38%. Extensive experiments show that GDA is an effective data augmentation strategy that incorporates word semantics for more accurate and diverse data.