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Marti A. Hearst

4 accepted papers

2021

Can Transformer Models Measure Coherence In Text: Re-Thinking the Shuffle Test

ACL 2021short

The Shuffle Test is the most common task to evaluate whether NLP models can measure coherence in text. Most recent work uses direct supervision on the task; we show that by simply finetuning a RoBERTa model, we can achieve a near perfect accuracy of 97.8%, a state-of-the-art. We argue that this outs…

2021

Keep It Simple: Unsupervised Simplification of Multi-Paragraph Text

ACL 2021long

This work presents Keep it Simple (KiS), a new approach to unsupervised text simplification which learns to balance a reward across three properties: fluency, salience and simplicity. We train the model with a novel algorithm to optimize the reward (k-SCST), in which the model proposes several candi…

2021

Modeling Mathematical Notation Semantics in Academic Papers

EMNLP 2021finding

Natural language models often fall short when understanding and generating mathematical notation. What is not clear is whether these shortcomings are due to fundamental limitations of the models, or the absence of appropriate tasks. In this paper, we explore the extent to which natural language mode…