Aspect Category Opinion Sentiment Quadruple

Aspect-Category-Opinion-Sentiment Quadruple Extraction is a task in natural language processing that aims to extract all aspect-category-opinion-sentiment quadruples from review sentences, providing comprehensive support for aspect-level sentiment analysis, including implicit aspects and opinions. This task helps to gain a deeper understanding of users' specific evaluations of certain products or services, enhancing the accuracy and granularity of sentiment analysis.