Weijia Zhang
Author directoryOther people with similar names: Weijia Zhang
Unverified author pages with similar names: Weijia Zhang
2025
Summarize-Exemplify-Reflect: Data-driven Insight Distillation Empowers LLMs for Few-shot Tabular Classification
Yifei Yuan | Jiatong Li | Weijia Zhang | Mohammad Aliannejadi | Evangelos Kanoulas | Renjun Hu
Findings of the Association for Computational Linguistics: EMNLP 2025
Yifei Yuan | Jiatong Li | Weijia Zhang | Mohammad Aliannejadi | Evangelos Kanoulas | Renjun Hu
Findings of the Association for Computational Linguistics: EMNLP 2025
Recent studies show the promise of large language models (LLMs) for few-shot tabular classification but highlight challenges due to the variability in structured data. To address this, we propose distilling data into actionable insights to enable robust and effective classification by LLMs. Drawing inspiration from human learning processes, we introduce InsightTab, an insight distillation framework guided by principles of divide-and-conquer, easy-first, and reflective learning. Our approach integrates rule summarization, strategic exemplification, and insight reflection through deep collaboration between LLMs and data modeling techniques. The obtained insights enable LLMs to better align their general knowledge and capabilities with the particular requirements of specific tabular tasks. We extensively evaluate InsightTab on nine datasets. The results demonstrate consistent improvement over state-of-the-art methods. Ablation studies further validate the principle-guided distillation process, while analyses emphasize InsightTab’s effectiveness in leveraging labeled data and managing bias.
2024
FoodieQA: A Multimodal Dataset for Fine-Grained Understanding of Chinese Food Culture
Wenyan Li | Crystina Zhang | Jiaang Li | Qiwei Peng | Raphael Tang | Li Zhou | Weijia Zhang | Guimin Hu | Yifei Yuan | Anders Søgaard | Daniel Hershcovich | Desmond Elliott
Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing
Wenyan Li | Crystina Zhang | Jiaang Li | Qiwei Peng | Raphael Tang | Li Zhou | Weijia Zhang | Guimin Hu | Yifei Yuan | Anders Søgaard | Daniel Hershcovich | Desmond Elliott
Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing
Food is a rich and varied dimension of cultural heritage, crucial to both individuals and social groups. To bridge the gap in the literature on the often-overlooked regional diversity in this domain, we introduce FoodieQA, a manually curated, fine-grained image-text dataset capturing the intricate features of food cultures across various regions in China. We evaluate vision–language Models (VLMs) and large language models (LLMs) on newly collected, unseen food images and corresponding questions. FoodieQA comprises three multiple-choice question-answering tasks where models need to answer questions based on multiple images, a single image, and text-only descriptions, respectively. While LLMs excel at text-based question answering, surpassing human accuracy, the open-sourced VLMs still fall short by 41% on multi-image and 21% on single-image VQA tasks, although closed-weights models perform closer to human levels (within 10%). Our findings highlight that understanding food and its cultural implications remains a challenging and under-explored direction.