R${}^2$-Net: Relation of Relation Learning Network for Sentence Semantic Matching

Abstract

Sentence semantic matching is one of the fundamental tasks in natural language processing, which requires an agent to determine the semantic relation among input sentences. Recently, deep neural networks have achieved impressive performance in this area, especially BERT. Despite the effectiveness of these models, most of them treat output labels as meaningless one-hot vectors, underestimating the semantic information and guidance of relations that these labels reveal, especially for tasks with a small number of labels. To address this problem, we propose a Relation of Relation Learning Network (R2-Net) for sentence semantic matching. Specifically, we first employ BERT to encode the input sentences from a global perspective. Then a CNN-based encoder is designed to capture keywords and phrase information from a local perspective. To fully leverage labels for better relation information extraction, we introduce a self-supervised relation of relation classification task for guiding R2-Net to consider more about labels. Meanwhile, a triplet loss is employed to distinguish the intra-class and inter-class relations in a finer granularity. Empirical experiments on two sentence semantic matching tasks demonstrate the superiority of our proposed model. As a byproduct, we have released the codes to facilitate other researches.

arXiv commentThis paper has been accepted to/by AAAI2021

References in corpus (7)

• Empirical Evaluation of Gated Recurrent Neural Networks on Sequence Modeling
• A Simple Framework for Contrastive Learning of Visual Representations
• Enhanced LSTM for Natural Language Inference
• Convolutional Neural Networks for Sentence Classification
• Multi-Task Deep Neural Networks for Natural Language Understanding
• Distance-based Self-Attention Network for Natural Language Inference
• Dynamic Self-Attention : Computing Attention over Words Dynamically for Sentence Embedding