Yansong Li
Author directory2026
.tmu: A Low-Entropy Tree-Structured Representation for LLM-Assisted Scientific Writing
Tianyou Liu | Ziqiang Li | Xurui Liu | Yu Wu | Yansong Li
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing: Industry Track
Tianyou Liu | Ziqiang Li | Xurui Liu | Yu Wu | Yansong Li
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing: Industry Track
As large language models (LLMs) increasingly assist scientific writing, the limitations and token costs of generating TeX become increasingly visible. This paper analyzes TeX’s architectural mismatch with LLM workflows, stemming from its lack of an explicit structural representation, to illustrate its limitations on generated semantics and error localization. As an alternative, we introduce .tmu, a low-entropy tree-structured representation. With its efficient data structure and clear contextual boundaries, .tmu outperforms .tex in the above aspects. Experiments across four LLMs provide evidence for this claim in most evaluated settings. Furthermore, we show that due to its lower information entropy, fine-tuning LLMs on .tmu achieves approximately 43% lower final training loss than on .tex. Our work provides a more scalable and LLM-friendly data representation for LLM-assisted scientific writing.
2025
A Context-Aware Contrastive Learning Framework for Hateful Meme Detection and Segmentation
Xuanyu Su | Yansong Li | Diana Inkpen | Nathalie Japkowicz
Findings of the Association for Computational Linguistics: NAACL 2025
Xuanyu Su | Yansong Li | Diana Inkpen | Nathalie Japkowicz
Findings of the Association for Computational Linguistics: NAACL 2025
Amidst the rise of Large Multimodal Models (LMMs) and their widespread application in generating and interpreting complex content, the risk of propagating biased and harmful memes remains significant. Current safety measures often fail to detect subtly integrated hateful content within “Confounder Memes”. To address this, we introduce HateSieve, a new framework designed to enhance the detection and segmentation of hateful elements in memes. HateSieve features a novel Contrastive Meme Generator that creates semantically correlated memes, a customized triplet dataset for contrastive learning, and an Image-Text Alignment module that produces context-aware embeddings for accurate meme segmentation. Empirical experiments show that HateSieve not only surpasses existing LMMs in performance with fewer trainable parameters but also offers a robust mechanism for precisely identifying and isolating hateful content. Caution: Contains academic discussions of hate speech; viewer discretion advised.