This paper presents AIDAVANCE's approach to Subtask 2 (Detection of Argument Temporal References) of the NTCIR-18 FinArg-2 Task. We explored different classification strategies, including direct multi-class classification, a hierarchical cascade approach that first identifies the presence of a temporal reference before further categorization, and an LLM-based argument rewriting method. Our best model, a fine-tuned mDeBERTa using the multi-class approach, ranked fourth overall, achieving a Micro-F1 score of 0.6905 and a Macro-F1 score of 0.6711. Our findings reinforce that fine-tuning smaller encoder models remains an effective strategy for specialized classification tasks, even outperforming state-of-the-art LLMs.
Dutra et al. (Fri,) studied this question.