DeepAI AI Chat
Log In Sign Up

Deep Context- and Relation-Aware Learning for Aspect-based Sentiment Analysis

06/07/2021
by   Shinhyeok Oh, et al.
0

Existing works for aspect-based sentiment analysis (ABSA) have adopted a unified approach, which allows the interactive relations among subtasks. However, we observe that these methods tend to predict polarities based on the literal meaning of aspect and opinion terms and mainly consider relations implicitly among subtasks at the word level. In addition, identifying multiple aspect-opinion pairs with their polarities is much more challenging. Therefore, a comprehensive understanding of contextual information w.r.t. the aspect and opinion are further required in ABSA. In this paper, we propose Deep Contextualized Relation-Aware Network (DCRAN), which allows interactive relations among subtasks with deep contextual information based on two modules (i.e., Aspect and Opinion Propagation and Explicit Self-Supervised Strategies). Especially, we design novel self-supervised strategies for ABSA, which have strengths in dealing with multiple aspects. Experimental results show that DCRAN significantly outperforms previous state-of-the-art methods by large margins on three widely used benchmarks.

READ FULL TEXT

page 1

page 2

page 3

page 4

10/06/2020

Aspect Sentiment Classification with Aspect-Specific Opinion Spans

Aspect based sentiment analysis, predicting sentiment polarity of given ...
09/19/2017

Aspect-Based Relational Sentiment Analysis Using a Stacked Neural Network Architecture

Sentiment analysis can be regarded as a relation extraction problem in w...
02/16/2018

Disentangling Aspect and Opinion Words in Target-based Sentiment Analysis using Lifelong Learning

Given a target name, which can be a product aspect or entity, identifyin...
11/18/2021

Seeking Common but Distinguishing Difference, A Joint Aspect-based Sentiment Analysis Model

Aspect-based sentiment analysis (ABSA) task consists of three typical su...
04/14/2020

Jointly Modeling Aspect and Sentiment with Dynamic Heterogeneous Graph Neural Networks

Target-Based Sentiment Analysis aims to detect the opinion aspects (aspe...
06/21/2021

Out of Context: A New Clue for Context Modeling of Aspect-based Sentiment Analysis

Aspect-based sentiment analysis (ABSA) aims to predict the sentiment exp...
05/19/2019

Earlier Attention? Aspect-Aware LSTM for Aspect Sentiment Analysis

Aspect-based sentiment analysis (ABSA) aims to predict fine-grained sent...