Yajie Xu

AI-Supported Creative Learning for K–12 Students

Prototyping LLM-integrated platforms that support children's creative learning, storytelling, and collaborative exploration. Combines HCI, psychology, and education to investigate how children engage with generative models, with planned studies examining learning processes and co-creation behaviors in AI-supported environments.

Collaborator: Raiyan Abdul Baten

Bayesian Network Models for Innovation and Immigrant-Led R&D

Developing Bayesian structural models to infer endogenous network effects in collaboration networks, linking firm-level innovation data and immigrant executive information to measure spillover effects, uncover heterogeneity, and study how immigrant-led firms reshape R&D alliances and innovation outcomes.

Coauthors: Murat Munkin , Kazuma Takakura

Human-Centered NLP for Constructive Online Conversations

Combining NLP and social computing to study how people use rhetorical strategies to challenge stereotypes and promote constructive dialogue online. Develops Mandarin datasets and explores AI systems that can better understand and support healthy conversational norms.

Coauthor: Michael Bennie

Dynamic Style Rotation Strategies in Chinese Equity Markets

This project constructs a style-rotation index for Chinese equities and evaluates three timing strategies. The best-performing approach—rotation with market-exit rules—achieves a total return of 51.99 versus the benchmark’s 2.58 (≈20.2× higher) and lowers max drawdown from −0.719 to −0.249. A hedged variant also delivers stable, near–market-neutral performance with positive excess returns.

Celadon • Hugo Theme

An open-source portfolio theme exploring the equilibrium between academic rigor and creative design. Features a configuration-driven one-page architecture, native KaTeX support for econometrics, and a bespoke Morandi color system.

Skin Scan

AI-powered skin cancer detection platform that combines real-time webcam analysis, XGBoost image classification, and secure patient management to support early diagnosis and improve healthcare accessibility.