NlpUned at SemEval-2025 Task 10: Beyond Training: A Taxonomy-Guided Approach to Role Classification Using LLMs

AbstractThe paper presents a taxonomy-guided approach to role classification in news articles using Large Language Models (LLMs). Instead of traditional model training, the system employs zero-shot and few-shot prompting strategies, leveraging structured taxonomies and contextual cues for classification. The study evaluates hierarchical and single-step classification approaches, finding that a unified, single-step model with contextual preprocessing achieves the best performance. The research underscores the importance of input structuring and classification strategy in optimizing LLM performance for real-world applications.