ViTASA: New benchmark and methods for Vietnamese targeted aspect sentiment analysis for multiple textual domains

Khanh Quoc Tran, Quang Phan-Minh Huynh, Oanh Thi-Hong Le, Kiet Van Nguyen, Ngan Luu-Thuy Nguyen

Abstract: Highlights•Creating multi-domain dataset with 500k+ target-aspect pairs from social comments.•Proposing transformer-based approach achieving SOTA on Vietnamese TASA task.•Evaluating Vietnamese multi-task sentiment analysis including TBSA and ABSA tasks.•Investigating challenges and characteristics in Vietnamese sentiment analysis tasks.