Papers › Deep Learning Brasil at ABSAPT 2022: Portuguese Transformer Ensemble Approaches

Deep Learning Brasil at ABSAPT 2022: Portuguese Transformer Ensemble Approaches

8 Nov 2023arXiv:2311.05051archive 2025-07-28

Juliana Resplande Santanna Gomes, Eduardo Augusto Santos Garcia, Adalberto Ferreira Barbosa Junior, Ruan Chaves Rodrigues, Diogo Fernandes Costa Silva, Dyonnatan Ferreira Maia, Nádia Félix Felipe da Silva, Arlindo Rodrigues Galvão Filho, Anderson da Silva Soares

Aspect-based Sentiment Analysis (ABSA) is a task whose objective is to classify the individual sentiment polarity of all entities, called aspects, in a sentence. The task is composed of two subtasks: Aspect Term Extraction (ATE), identify all aspect terms in a sentence; and Sentiment Orientation Extraction (SOE), given a sentence and its aspect terms, the task is to determine the sentiment polarity of each aspect term (positive, negative or neutral). This article presents we present our participation in Aspect-Based Sentiment Analysis in Portuguese (ABSAPT) 2022 at IberLEF 2022. We submitted the best performing systems, achieving new state-of-the-art results on both subtasks.

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Tasks

Aspect Category PolarityAspect ExtractionAspect Term Extraction and Sentiment ClassificationAspect-Based Sentiment AnalysisAspect-Based Sentiment Analysis (ABSA)Aspect-oriented Opinion ExtractionDeep LearningSentenceSentiment AnalysisTerm Extraction

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Methods

AdafactorAdamAttentionAttention DropoutBERTBPEDeBERTaDense ConnectionsDropoutGated Linear UnitInverse Square Root ScheduleLayer NormalizationLinear LayerLinear Warmup With Linear DecayMulti-Head AttentionResidual ConnectionRoBERTaSentencePieceSoftmaxT5Weight DecayWordPiece

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