Liu, Han
157 publications
NeurIPS
2025
HQA-VLAttack: Towards High Quality Adversarial Attack on Vision-Language Pre-Trained Models
NeurIPS
2025
Investigating Hallucinations of Time Series Foundation Models Through Signal Subspace Analysis
ICLR
2024
Beyond Reverse KL: Generalizing Direct Preference Optimization with Diverse Divergence Constraints
TMLR
2024
Efficient Action Robust Reinforcement Learning with Probabilistic Policy Execution Uncertainty
AISTATS
2024
Multivariate Time Series Forecasting by Graph Attention Networks with Theoretical Guarantees
NeurIPS
2024
On Statistical Rates and Provably Efficient Criteria of Latent Diffusion Transformers (DiTs)
ICMLW
2024
OutEffHop: A Principled Outlier-Efficient Attention Layer from Dense Associative Memory Models
AAAI
2024
VQAttack: Transferable Adversarial Attacks on Visual Question Answering via Pre-Trained Models
NeurIPSW
2023
Beyond Reverse KL: Generalizing Direct Preference Optimization with Diverse Divergence Constraints
NeurIPSW
2023
Beyond Reverse KL: Generalizing Direct Preference Optimization with Diverse Divergence Constraints
AAAI
2023
Ising-Traffic: Using Ising Machine Learning to Predict Traffic Congestion Under Uncertainty
CVPR
2023
RIATIG: Reliable and Imperceptible Adversarial Text-to-Image Generation with Natural Prompts
AAAI
2023
SSPAttack: A Simple and Sweet Paradigm for Black-Box Hard-Label Textual Adversarial Attack
NeurIPSW
2023
TopoPool: An Adaptive Graph Pooling Layer for Extracting Molecular and Protein Substructures
NeurIPS
2023
VLATTACK: Multimodal Adversarial Attacks on Vision-Language Tasks via Pre-Trained Models
ICLR
2022
Reinforcement Learning Under a Multi-Agent Predictive State Representation Model: Method and Theory
NeurIPS
2017
Diffusion Approximations for Online Principal Component Estimation and Global Convergence
ICML
2017
High-Dimensional Non-Gaussian Single Index Models via Thresholded Score Function Estimation
AISTATS
2016
An Improved Convergence Analysis of Cyclic Block Coordinate Descent-Type Methods for Strongly Convex Minimization
NeurIPS
2016
More Supervision, Less Computation: Statistical-Computational Tradeoffs in Weakly Supervised Learning
NeurIPS
2016
Online ICA: Understanding Global Dynamics of Nonconvex Optimization via Diffusion Processes
MLOSS
2015
The Flare Package for High Dimensional Linear Regression and Precision Matrix Estimation in R
MLOSS
2014
The FASTCLIME Package for Linear Programming and Large-Scale Precision Matrix Estimation in R
NeurIPS
2013
Robust Sparse Principal Component Regression Under the High Dimensional Elliptical Model
NeurIPS
2012
Exponential Concentration for Mutual Information Estimation with Application to Forests
NeurIPS
2012
Smooth-Projected Neighborhood Pursuit for High-Dimensional Nonparanormal Graph Estimation