Chengkai Liu (刘成锴)

I am a third-year Ph.D. student in Computer Science at Texas A&M University (TAMU), advised by Prof. James Caverlee.

I received my bachelor’s degree from ACM Honors class, Shanghai Jiao Tong University (SJTU) in 2022, advised by Prof. Yong Yu.

My research interests include efficient recommender systems, large language models, and generative models.

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Feel free to reach out if you would like to talk about life, research, or career. I am open to conversations, discussions and potential collaborations.

Behavior-Dependent Linear Recurrent Units for Efficient Sequential Recommendation

Chengkai Liu, Jianghao Lin, Hanzhou Liu, Jianling Wang, James Caverlee

CIKM 2024  [code]

Mamba4Rec: Towards Efficient Sequential Recommendation with Selective State Space Models

Chengkai Liu, Jianghao Lin, Jianling Wang, Hanzhou Liu, James Caverlee

RelKD@KDD 2024  (Best Paper Award) [code]

Towards Symmetry-Aware Generation of Periodic Materials

Youzhi Luo, Chengkai Liu, Shuiwang Ji

NeurIPS 2023  (Spotlight) [code]

Multi-Behavior Sequential Transformer Recommender

Enming Yuan, Wei Guo, Zhicheng He, Huifeng Guo, Chengkai Liu, Ruiming Tang

SIGIR 2022  [code]

Flow Matching for Collaborative Filtering

Chengkai Liu*, Yangtian Zhang*, Jianling Wang, Rex Ying, James Caverlee

arXiv 2025  [code]

TwinCL: A Twin Graph Contrastive Learning Model for Collaborative Filtering

Chengkai Liu, Jianling Wang, James Caverlee

arXiv 2024  [code]

A Survey on Diffusion Models for Recommender Systems

Jianghao Lin, Jiaqi Liu, Jiachen Zhu, Yunjia Xi, Chengkai Liu, Yangtian Zhang, Yong Yu, Weinan Zhang

arXiv 2024  [repo]

CrisisSense-LLM: Instruction Fine-Tuned Large Language Model for Multi-label Social Media Text Classification in Disaster Informatics

Kai Yin, Chengkai Liu, Ali Mostafavi, Xia Hu

arXiv 2024 

XYScanNet: An Interpretable State Space Model for Perceptual Image Deblurring

Hanzhou Liu, Chengkai Liu, Jiacong Xu, Peng Jiang, Mi Lu

arXiv 2024 

DeblurDiNAT: A Generalizable Transformer for Perceptual Image Deblurring

Hanzhou Liu, Binghan Li, Chengkai Liu, Mi Lu

arXiv 2024  [code]