Publications (118)
Meta Lattice: Model Space Redesign for Cost-Effective Industry-Scale Ads Recommendations
Liang Luo, Yuxin Chen, Zhengyu Zhang +39
Diffuse-interface modeling and simulation of the freezing of binary fluids with the Marangoni effect
Jiangxu Huang, Zhenhua Chai, Xi Liu +1
Dielectric nonlinearity of relaxor ferroelectric ceramics at low ac drives
Xiao-Wen Zhang, Xi Liu, Zhi-Rong Liu +1
Coordinate Ascent for Off-Policy RL with Global Convergence Guarantees
Hsin-En Su, Yen-Ju Chen, Ping-Chun Hsieh +1
A Secure Communication Game with a Relay Helping the Eavesdropper
Melda Yuksel, Xi Liu, Elza Erkip
SCOReD: Student-Aware CoT Optimization for Recommendation Distillation
Haz Sameen Shahgir, Yufei Li, Xiaohan Wei +8
A thermodynamically consistent and conservative diffuse-interface model for gas-liquid-solid multiphase flows
Chengjie Zhan, Xi Liu, Zhenhua Chai +1
Bezier Splatting for Fast and Differentiable Vector Graphics Rendering
Xi Liu, Chaoyi Zhou, Nanxuan Zhao +1
Wasserstein $F$-tests and Confidence Bands for the Frèchet Regression of Density Response Curves
Alexander Petersen, Xi Liu, Afshin A. Divani
GeV gamma-ray emission from pulsar wind nebula HESS J1356-645 with Fermi-LAT
Xi Liu, Xiaolei Guo, Yuliang Xin +2
Stay With Me: Lifetime Maximization Through Heteroscedastic Linear Bandits With Reneging
Ping-Chun Hsieh, Xi Liu, Anirban Bhattacharya +1
A Replicate-and-Quantize Strategy for Plug-and-Play Load Balancing of Sparse Mixture-of-Experts LLMs
Zijie Liu, Jie Peng, Jinhao Duan +7
The paper proposes a training‑free method that replicates heavily used experts and quantizes less important ones to rebalance workload in sparse mixture‑of‑experts large language m…
End-to-End Dynamic Sparsity for Resource-Adaptive LLM Inference
Yuhang Chen, Jinhao Duan, Ruichen Zhang +11
DistDNAS: Search Efficient Feature Interactions within 2 Hours
Tunhou Zhang, Wei Wen, Igor Fedorov +8
Seeing or Knowing? Visual Context Sensitivity in Multimodal Large Language Models
Jiaang Li, Chengzu Li, Zhaochong An +4
The paper investigates why multimodal large language models often ignore visual evidence, using image reconstruction and a new benchmark (WhatIfVis) to measure how well models bala…
Energy-Efficient Sensing and Communication of Parallel Gaussian Sources
Xi Liu, Osvaldo Simeone, Elza Erkip
AccFlow: Backward Accumulation for Long-Range Optical Flow
Guangyang Wu, Xiaohong Liu, Kunming Luo +6
Towards the Better Ranking Consistency: A Multi-task Learning Framework for Early Stage Ads Ranking
Xuewei Wang, Qiang Jin, Shengyu Huang +10
Automatic Detection of Out-of-body Frames in Surgical Videos for Privacy Protection Using Self-supervised Learning and Minimal Labels
Ziheng Wang, Conor Perreault, Xi Liu +1
APOLLO: SGD-like Memory, AdamW-level Performance
Hanqing Zhu, Zhenyu Zhang, Wenyan Cong +7
Micro- and Macro-Level Churn Analysis of Large-Scale Mobile Games
Xi Liu, Muhe Xie, Xidao Wen +4
A Dense Siamese U-Net trained with Edge Enhanced 3D IOU Loss for Image Co-segmentation
Xi Liu, Xiabi Liu, Huiyu Li +1
External Large Foundation Model: How to Efficiently Serve Trillions of Parameters for Online Ads Recommendation
Mingfu Liang, Xi Liu, Rong Jin +104
A Cole-Hopf transformation based fourth-order multiple-relaxation-time lattice Boltzmann model for the coupled Burgers' equations
Ying Chen, Xi Liu, Zhenhua Chai +1
A Giant Peanut-shaped Ultra-High-Energy Gamma-Ray Emitter Off the Galactic Plane
Zhen Cao, Felix Aharonian, Yunxiang Bai +312
The macroscopic finite-difference scheme and modified equations of the general propagation multiple-relaxation-time lattice Boltzmann model
Ying Chen, Xi Liu, Zhenhua Chai +1
Multi-Gate Residuals
Zhizhan Zheng, Feiyun Zhang, Shuchun Liu +4
HAD: Hallucination-Aware Diffusion Priors for 3D Reconstruction
Xi Liu, Weiwei Sun, Zhou Ren +3
The GeV $γ$-ray emission from the composite SNR CTB 87
Yuliang Xin, Jian Tang, Weixiong Ding +3
AutoML for Large Capacity Modeling of Meta's Ranking Systems
Hang Yin, Kuang-Hung Liu, Mengying Sun +16
Reinforced Few-Shot Acquisition Function Learning for Bayesian Optimization
Bing-Jing Hsieh, Ping-Chun Hsieh, Xi Liu
A diffuse-interface model for N-phase flows with liquid-solid phase change
Jiangxu Huang, Chengjie Zhan, Zhenhua Chai +2
The Case Against Generation for Retrieval: Discriminative Language Models as Effective Retrievers
Zhe Xu, Prachi Agrawal, Kavosh Asadi +17
Learning Evidence Highlighting for Frozen LLMs
Shaoang Li, Yanhang Shi, Yufei Li +10
DHEN: A Deep and Hierarchical Ensemble Network for Large-Scale Click-Through Rate Prediction
Buyun Zhang, Liang Luo, Xi Liu +14
Detection of the extended $γ$-ray emission from the new supernova remnant G321.3-3.9 with Fermi-LAT
Xiaolei Guo, Xi Liu
Evidence of nematic order and nodal superconducting gap along [110] direction in RbFe2As2
Xi Liu, Ran Tao, Mingqiang Ren +6
Regularized lattice Boltzmann method based maximum principle and energy stability preserving finite-difference scheme for the Allen-Cahn equation
Ying Chen, Xi Liu, Zhenhua Chai +1
Modeling rare-earth and energy materials supply chains under theoretical China-outer-Mongolia political reunification scenarios
Xi Liu, Wenxi Fang
Adaptive Neighboring Selection Algorithm Based on Curvature Prediction in Manifold Learning
Lin Ma, Caifa Zhou, Xi Liu +1
Gemini 2.5: Pushing the Frontier with Advanced Reasoning, Multimodality, Long Context, and Next Generation Agentic Capabilities
Gheorghe Comanici, Eric Bieber, Mike Schaekermann +3431
Nanodiamond sensing in dynamic environments with fast-tracking through four-point positioning
Guoli Zhu, Ming-Zhong Ai, Zhiyu Zhao +8
Multi-resource Fair Allocation with Bounded Number of Tasks in Cloud Computing Systems
Weidong Li, Xi Liu, Xiaolu Zhang +1
A comparative study of two Allen-Cahn models for immiscible $N$-phase flows by using a consistent and conservative lattice Boltzmann method
Chengjie Zhan, Xi Liu, Zhenhua Chai +1
Full-reference image quality assessment-based B-mode ultrasound image similarity measure
Kele Xu, Xi Liu, Hengxing Cai +1
On the quantization of AB phase in nonlinear systems
Xi Liu, Qing-hai Wang, Jiangbin Gong
Learning from Few Samples: Transformation-Invariant SVMs with Composition and Locality at Multiple Scales
Tao Liu, P. R. Kumar, Ruida Zhou +1
The Efficiency vs. Accuracy Trade-off: Optimizing RAG-Enhanced LLM Recommender Systems Using Multi-Head Early Exit
Huixue Zhou, Hengrui Gu, Xi Liu +15
Transmission Schemes for Gaussian Interference Channels with Transmitter Processing Energy
Xi Liu, Elza Erkip
FlexMap: Generalized HD Map Construction from Flexible Camera Configurations
Run Wang, Chaoyi Zhou, Amir Salarpour +5
Delay-Optimal Scheduling for Queueing Systems with Switching Overhead
Ping-Chun Hsieh, I-Hong Hou, Xi Liu
The selection rules of high harmonic generation: the symmetries of molecules and laser fields
Xi Liu, Xiaosong Zhu, Liang Li +4
Coupling Between Local and Global Oscillations in Palladium-Catalysed Methane Oxidation
Yuxiong Hu, Jianyu Hu, Mengzhao Sun +10
Enhancing Offline Model-Based RL via Active Model Selection: A Bayesian Optimization Perspective
Yu-Wei Yang, Yun-Ming Chan, Wei Hung +2
Revealing travel patterns and city structure with taxi trip data
Xi Liu, Li Gong, Yongxi Gong +1
Intuitive Surgical SurgToolLoc and SurgVU Challenges Results: 2022-2025
Aneeq Zia, Max Berniker, Rogerio Garcia Nespolo +153
InterFormer: Effective Heterogeneous Interaction Learning for Click-Through Rate Prediction
Zhichen Zeng, Xiaolong Liu, Mengyue Hang +25
Maximum Correntropy Kalman Filter
Badong Chen, Xi Liu, Haiquan Zhao +1
AdaTT: Adaptive Task-to-Task Fusion Network for Multitask Learning in Recommendations
Danwei Li, Zhengyu Zhang, Siyang Yuan +5
Reward-Biased Maximum Likelihood Estimation for Linear Stochastic Bandits
Yu-Heng Hung, Ping-Chun Hsieh, Xi Liu +1
A Unified Theory of Deterministic Magnetic Switching
Xizhi Fu, Lei Han, Xi Liu +2
High-order harmonic generation of doped semiconductor
Tengfei Huang, Xiaosong Zhu, Liang Li +3
GR2: Generative Reasoning Re-ranker
Mingfu Liang, Yufei Li, Jay Xu +20
Throughput-Optimal Scheduling for Multi-Hop Networked Transportation Systems With Switch-Over Delay
Ping-Chun Hsieh, Xi Liu, Jian Jiao +3
Wukong: Towards a Scaling Law for Large-Scale Recommendation
Buyun Zhang, Liang Luo, Yuxin Chen +12
Safe Intersection Management for Mixed Transportation Systems with Human-Driven and Autonomous Vehicles
Xi Liu, Ping-Chun Hsieh, P. R. Kumar
Time-dependent population imaging for solid high harmonic generation
Xi Liu, Xiaosong Zhu, Pengfei Lan +4
Adversarial Prompts for Acceptance Collapse in Speculative Decoding
Run Wang, Chaoyi Zhou, Xi Liu +7
Electrohydrodynamics of a pair of leaky dielectric droplets on the solid substrate: A lattice Boltzmann study
Jiang Peng, Xi Liu, Zhenhua Chai +2
Latent Radiance Fields with 3D-aware 2D Representations
Chaoyi Zhou, Xi Liu, Feng Luo +1
Bifocal Diffusion Language Models: Asymmetric Bidirectional Context for Parallel Generation
Yuhang Chen, Xianfeng Wu, Jinhao Duan +11
Reward Biased Maximum Likelihood Estimation for Reinforcement Learning
Akshay Mete, Rahul Singh, Xi Liu +1
Maximum Correntropy Unscented Filter
Xi Liu, Badong Chen, Bin Xu +2
A Task-Type-Based Algorithm for the Energy-Aware Profit Maximizing Scheduling Problem in Heterogeneous Computing Systems
Weidong Li, Xi Liu, Xuejie Zhang +1
Controlling Your Image via Simplified Vector Graphics
Lanqing Guo, Xi Liu, Yufei Wang +2
Piecewise Stationary Modeling of Random Processes Over Graphs With an Application to Traffic Prediction
Arman Hasanzadeh, Xi Liu, Nick Duffield +1
Alternating-Offer Bargaining Games over the Gaussian Interference Channel
Xi Liu, Elza Erkip
A Game-Theoretic View of the Interference Channel: Impact of Coordination and Bargaining
Xi Liu, Elza Erkip
Experimental and model-assisted analysis of lamella thinning and breakup in diesel-surrogate fuel-droplet wall impingement under Leidenfrost conditions
Xinquan Liang, Daniel Olufemi Olurotimi, Xi Liu +2
Diffusion-GR2: Diffusion Generative Reasoning Re-ranker
Zhuoxuan Zhang, Kangqi Ni, Yuhang Chen +12
Renormalization-Inspired Effective Field Neural Networks for Scalable Modeling of Classical and Quantum Many-Body Systems
Xi Liu, Yujun Zhao, Chun Yu Wan +2
ReasonRec: A Reasoning-Augmented Multimodal Agent for Unified Recommendation
Yihua Zhang, Mingfu Liang, Jiyan Yang +11
Helicity reversion in high harmonic generation driven by bichromatic counterrotating circularly polarized laser fields
Xiaofan Zhang, Liang Li, Xiaosong Zhu +4
Effect of Al-Zn alloy wafer grain boundary diffusion on the magnetism and microstructure of sintered NdFeB magnets
Xi Liu, Wenxi Fang, Ken Perlin
3DGS-Enhancer: Enhancing Unbounded 3D Gaussian Splatting with View-consistent 2D Diffusion Priors
Xi Liu, Chaoyi Zhou, Siyu Huang
Towards Provably Safe Mixed Transportation Systems with Human-driven and Automated Vehicles
Xi Liu, Ke Ma, P. R. Kumar
Q-Pensieve: Boosting Sample Efficiency of Multi-Objective RL Through Memory Sharing of Q-Snapshots
Wei Hung, Bo-Kai Huang, Ping-Chun Hsieh +1
Fresher Content or Smoother Playback? A Brownian-Approximation Framework for Scheduling Real-Time Wireless Video Streams
Ping-Chun Hsieh, Xi Liu, I-Hong Hou
Direct visualization of the nematic superconductivity in Cu$_x$Bi$_2$Se$_3$
Ran Tao, Ya-Jun Yan, Xi Liu +5
Coordination and Bargaining over the Gaussian Interference Channel
Xi Liu, Elza Erkip
Surgical Visual Understanding (SurgVU) Dataset
Aneeq Zia, Max Berniker, Rogerio Nespolo +8
Floquet band engineering with Bloch oscillations
Xi Liu, Senmao Tan, Qing-hai Wang +2
CustomListener: Text-guided Responsive Interaction for User-friendly Listening Head Generation
Xi Liu, Ying Guo, Cheng Zhen +3
A note on the dynamic dominant resource fairness mechanism
Weidong Li, Xi Liu, Xiaolu Zhang +1
GR2 Technical Report
Yufei Li, Zaiwei Zhang, Mingfu Liang +67
Exploration Through Reward Biasing: Reward-Biased Maximum Likelihood Estimation for Stochastic Multi-Armed Bandits
Xi Liu, Ping-Chun Hsieh, Anirban Bhattacharya +1
Energy-Dependent Analyses of the Gamma-Ray Emission from HESS J1857+026 with Fermi-LAT
Xiaolei Guo, Xi Liu, Yuliang Xin
Surgical Visual Domain Adaptation: Results from the MICCAI 2020 SurgVisDom Challenge
Aneeq Zia, Kiran Bhattacharyya, Xi Liu +10
Digital measurement of droplet flame diameter in microgravity combustion images using Segment Anything Model 2 with automatic prompt selection
Minghui Xu, Chaoyi Zhou, Aaron P. Cecil +3
Organic liquid scintillator neutrino detector experiment, theoretical modeling, and computational simulation
Xi Liu, Wenxi Fang, Ken Perlin