Hi there👋 thanks for visiting my website! I'm a MS student at the Tsinghua-Berkeley Shenzhen Institute @ Tsinghua University, where I am fortunate to be advised by Prof. Kaichen Dong and co-supervised by Prof. Yansong Tang. I affiliated with the Dong lab and IVG-SZ. Prior to that, I obtained my bachelor's degree in mathematics at Xi'an Jiaotong University (2019-2023) and had wonderful time conducting research at the LUD lab advised by Prof. Minnan Luo.
My research generally focuses on social network, graph neural networks, LLM for Recommendation, Reinforcement Learning and AI for Science (currently)...
In 2023, I spent a spring at VIP Group @ SUSTech to work with Prof. Jinbao Wang.
I was in Xiaohongshu AIGC group as a research intern in the end of 2024 and the beginning of 2025.
I was in Kuaishou Recommendation LLM Group (OneRec) as a research intern from 2025.6 to 2026.3.
I will join Tencent full-time in WXG WeChat Channel, focusing on LLM and Agent research.
Please feel free to drop me an Email for any form of communication or collaboration!☘️
Email: yangsj23 [at] mails [dot] tsinghua [dot] edu [dot] cn / yangshujie [at] stu [dot] xjtu [dot] edu [dot] cn
My primary research interest lies at Large Language Models, Generative Recommendation, Agentic Reinforcement Learning.
We introduce ALPBench, a benchmark for attribution-level long-term personal behavior understanding. Unlike item-focused benchmarks, ALPBench predicts user-interested attribute combinations, enabling ground-truth evaluation even for newly introduced items.
We propose OneRec-V2 with Lazy Decoder-Only Architecture that eliminates encoder bottlenecks and incorporates real-world user feedback for better preference alignment.
We propose OneRec, which reshapes the recommendation system through an end-to-end generative approach and achieves promising results. Firstly, we have enhanced the computational FLOPs of the current recommendation model by 10 × and have identified the scaling laws for recommendations within certain boundaries.
We propose CoSP, an intelligent inverse design method based on contrastive pretrained LLM for reconfigurable multi-state metamaterials.
We propose AHEAD: a heterogeneity-aware unsupervised graph anomaly detection approach based on the encoder-decoder framework.
We present TwiBot-22, the largest graph-based Twitter bot detection benchmark to date, which provides diversified entities and relations in Twittersphere and has considerably better annotation quality.