collaborators

6 papers

cs.IR2026

MixFormer: Co-Scaling Up Dense and Sequence in Industrial Recommenders

Xu Huang, Hao Zhang, Zhifang Fan +6

As industrial recommender systems enter a scaling-driven regime, Transformer architectures have become increasingly attractive for scaling models towards larger capacity and longer…

cs.IR2026

Compute Only Once: UG-Separation for Efficient Large Recommendation Models

Hui Lu, Zheng Chai, Shipeng Bai +15

Driven by scaling laws, recommender systems increasingly rely on larger-scale models to capture complex feature interactions and user behaviors, but this trend also leads to prohib…

cs.LG2026

Make It Long, Keep It Fast: End-to-End 10K Long User Behavior Sequence Modeling for Billion-Scale Douyin Recommendation

Lin Guan, Jia-Qi Yang, Zhishan Zhao +12

Short-video recommenders such as Douyin must exploit extremely long user behavior histories without breaking latency or cost budgets. We present an end-to-end industrial recommende…

cs.RO2026

Characterizing Vision-Language-Action Models across XPUs: Constraints and Acceleration for On-Robot Deployment

Kaijun Zhou, Qiwei Chen, Da Peng +3

Vision-Language-Action (VLA) models are promising for generalist robot control, but on-robot deployment is bottlenecked by real-time inference under tight cost and energy budgets.…

cs.IR2025

RankMixer: Scaling Up Ranking Models in Industrial Recommenders

Jie Zhu, Zhifang Fan, Xiaoxie Zhu +18

Recent progress on large language models (LLMs) has spurred interest in scaling up recommendation systems, yet two practical obstacles remain. First, training and serving cost on i…

cs.IR2025

Pyramid Mixer: Multi-dimensional Multi-period Interest Modeling for Sequential Recommendation

Zhen Gong, Zhifang Fan, Hui Lu +7

Sequential recommendation, a critical task in recommendation systems, predicts the next user action based on the understanding of the user's historical behaviors. Conventional stud…