Soyeon Caren Han

TriG-NER: Triplet-Grid Framework for Discontinuous Named Entity Recognition

2024 · arXiv (Cornell University)

Discontinuous Named Entity Recognition (DNER) presents a challenging problem where entities may be scattered across multiple non-adjacent tokens, making traditional sequence labelling approaches inadequate. Existing methods predominantly rely on custom tagging schemes to handle these …

Graph-Based Multimodal Contrastive Learning for Chart Question Answering

2025 · arXiv (Cornell University)

Chart question answering (ChartQA) is challenged by the heterogeneous composition of chart elements and the subtle data patterns they encode. This work introduces a novel joint multimodal scene graph framework that explicitly models the relationships …