# Xin DU Assistant Professor, School of Fundamental Science and Engineering Waseda University, Tokyo, Japan I work with Professor Kumiko Tanaka-Ishii on complex-systems approaches to understanding natural language and autoregressive language models. I’m also investigating financial econometrics and risk modeling from a complex-system perspective. [Lab homepage](https://ml-waseda.jp ) [研究室HP](https://ja.ml-waseda.jp) # Selected Publications - Information-Theoretic Generative Clustering of Documents. AAAI 2025. - Correlation Dimension of Natural Language in A Statistical Manifold. Physical Review Research. 2024. - Bottleneck-Minimal Indexing for Generative Document Retrieval. ICML 2024 (Oral). - FIRE: Semantic Field of Words Represented as Nonlinear Functions. NeurIPS 2022. - Stock embeddings acquired from news articles and price history, and an application to portfolio optimization. ACL 2020.