Progressive Sentiment Analysis for Code-Switched Text Data

• URL: http://arxiv.org/abs/2210.14380v1
• Date: Tue, 25 Oct 2022 23:13:53 GMT
• Title: Progressive Sentiment Analysis for Code-Switched Text Data
• Authors: Sudhanshu Ranjan, Dheeraj Mekala, Jingbo Shang
• Abstract summary: We focus on code-switched sentiment analysis where we have a labelled resource-rich language dataset and unlabelled code-switched data. We propose a framework that takes the distinction between resource-rich and low-resource language into account.
• Score: 26.71396390928905
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Multilingual transformer language models have recently attracted much attention from researchers and are used in cross-lingual transfer learning for many NLP tasks such as text classification and named entity recognition. However, similar methods for transfer learning from monolingual text to code-switched text have not been extensively explored mainly due to the following challenges: (1) Code-switched corpus, unlike monolingual corpus, consists of more than one language and existing methods can't be applied efficiently, (2) Code-switched corpus is usually made of resource-rich and low-resource languages and upon using multilingual pre-trained language models, the final model might bias towards resource-rich language. In this paper, we focus on code-switched sentiment analysis where we have a labelled resource-rich language dataset and unlabelled code-switched data. We propose a framework that takes the distinction between resource-rich and low-resource language into account. Instead of training on the entire code-switched corpus at once, we create buckets based on the fraction of words in the resource-rich language and progressively train from resource-rich language dominated samples to low-resource language dominated samples. Extensive experiments across multiple language pairs demonstrate that progressive training helps low-resource language dominated samples.

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