large language model, foundation model, retrieval-augmented generation
2023 – Present
user modeling, social network analysis, recommender system
2021 – Present
multimodal learning
2021 – Present
time series, anomaly detection
2021 – Present
spatial-temporal data modeling, urban computing, human trajectory
2019 – Present
science of science, computational social science, human-computer interaction
2019 – Present
deep learning, self-supervised learning, contrastive learning, representation learning
2018 – Present
information diffusion, popularity prediction, information cascade
2018 – Present
data mining, big data, knowledge discovery
2018 – Present