Challenge: Language models are ubiquitous in NLP, but current analyses focus on (multilingual variants of) standard benchmarks and task-specific corpora as multilingual signals.
Approach: They propose a model to train and evaluate multilingual language models in Twitter using a set of Twitter datasets in eight different languages and a XLM-T model.
Outcome: The proposed model trains and evaluates multilingual models on Twitter.

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M2SA: Multimodal and Multilingual Model for Sentiment Analysis of Tweets (2024.lrec-main)

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Challenge: Existing studies on sentiment analysis of tweets focus on the English language . however, there is still a challenge of processing lower-resourced languages .
Approach: They transform tweet sentiment dataset into a multimodal format through a straightforward curation process.
Outcome: The proposed approach performs exceptionally well in unimodal and multimodal configurations.
Bernice: A Multilingual Pre-trained Encoder for Twitter (2022.emnlp-main)

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Challenge: Existing language models for Twitter are monolingual, adapted from other domains, or trained on limited amount of in-domain data.
Approach: They propose a multilingual RoBERTa language model that is trained from scratch on 2.5 billion tweets with a custom tweet-focused tokenizer.
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NaijaSenti: A Nigerian Twitter Sentiment Corpus for Multilingual Sentiment Analysis (2022.lrec-1)

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Challenge: Sentiment analysis is one of the most widely studied applications in NLP, but most work focuses on languages with large amounts of data.
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Improving Sentiment Analysis over non-English Tweets using Multilingual Transformers and Automatic Translation for Data-Augmentation (2020.coling-main)

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Challenge: Existing models for sentiment analysis over tweets require a substantial amount of text to adapt to a domain where the syntax is different.
Approach: They propose to use a multilingual transformer model to train over tweets in five different languages to adapt the model to non-English languages.
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BERTweet: A pre-trained language model for English Tweets (2020.emnlp-demos)

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Challenge: Experiments show that BERTweet outperforms strong baselines RoBERTa-base and XLM-R-base on three Tweet NLP tasks: Part-of-speech tagging, Named-entity recognition and text classification.
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A Checkpoint on Multilingual Misogyny Identification (2022.acl-srw)

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Challenge: a study on hate speech against minorities in Italian tweets found that 1 women are the most targeted group.
Approach: They propose to train monolingual transformers and multilingual transformer models with monolingual data in English, Italian, and Spanish to detect misogyny in tweets.
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TweetEval: Unified Benchmark and Comparative Evaluation for Tweet Classification (2020.findings-emnlp)

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Challenge: Modern NLP systems are typically ill-equipped when applied to noisy user-generated text.
Approach: They propose a new evaluation framework consisting of seven Twitter-specific classification tasks.
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Exploring Multilingual Pre-trained Language Model for Aspect-based Sentiment Analysis (2026.findings-acl)

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Challenge: Aspect-based sentiment analysis studies have focused on English datasets, but labeled data is scarce.
Approach: They propose a multilingual pre-trained language model that leverages bilingual pre-training to leverage aspects-based sentiment analysis.
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Predicting Foreign Language Usage from English-Only Social Media Posts (N18-2)

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Challenge: Social media is known for its multi-cultural and multilingual interactions, a natural product of which is code-mixing.
Approach: They analyze 6 million tweets produced by 27 thousand multilingual users speaking 12 other languages besides English to build predictive models to infer non-English languages users speak exclusively from their tweets.
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ChatGPT Beyond English: Towards a Comprehensive Evaluation of Large Language Models in Multilingual Learning (2023.findings-emnlp)

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Challenge: Recent advances in natural language processing (NLP) have led to significant breakthroughs in the field.
Approach: They evaluate ChatGPT over multiple tasks with diverse languages and large datasets to provide more comprehensive information for multilingual NLP applications.
Outcome: The proposed model can process and generate texts for multiple languages due to its multilingual training data.

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