In this paper, we focus on learning structure-aware document representations
from data without recourse to a discourse parser or additional annotations.
Drawing inspiration from recent efforts to empower neural networks with a
structural bias, we propose a model that can encode a document while
automatically inducing rich structural dependencies. Specifically, we embed a
differentiable non-projective parsing algorithm into a neural model and use
attention mechanisms to incorporate the structural biases. Experimental
evaluation across different tasks and datasets shows that the proposed model
achieves state-of-the-art results on document modeling tasks while inducing
intermediate structures which are both interpretable and meaningful.

本文提出一种可以在没有语篇分析器或额外注释的情况下，从数据中学习具有结构感知能力的文档表示的模型，该模型通过将可微分非项目句法分析算法嵌入神经模型，使用注意机制来结合结构偏置，从而产生具有解释性和意义的中间结构，并在不同任务和数据集上实验验证表明，该模型在文档建模任务中取得了最先进的结果。