Pan Xu

Orcid: 0000-0002-2559-8622

Affiliations:
  • Duke University, USA
  • University of California, Los Angeles, Department of Computer Science, CA, USA
  • University of Virginia, Department of Systems andInformation Engineering, Charlottesville, VA, USA


According to our database1, Pan Xu authored at least 51 papers between 2016 and 2024.

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Bibliography

2024
Challenges of COVID-19 Case Forecasting in the US, 2020-2021.
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PLoS Comput. Biol., 2024

Pre-trained Language Models Improve the Few-shot Prompt Ability of Decision Transformer.
CoRR, 2024

Randomized Exploration in Cooperative Multi-Agent Reinforcement Learning.
CoRR, 2024

Efficient and robust sequential decision making algorithms.
AI Mag., 2024

More Efficient Randomized Exploration for Reinforcement Learning via Approximate Sampling.
RLJ, 2024

Optimal Batched Linear Bandits.
Proceedings of the Forty-first International Conference on Machine Learning, 2024

Provable and Practical: Efficient Exploration in Reinforcement Learning via Langevin Monte Carlo.
Proceedings of the Twelfth International Conference on Learning Representations, 2024

Finite-Time Frequentist Regret Bounds of Multi-Agent Thompson Sampling on Sparse Hypergraphs.
Proceedings of the Thirty-Eighth AAAI Conference on Artificial Intelligence, 2024

2023
Global Convergence of Localized Policy Iteration in Networked Multi-Agent Reinforcement Learning.
Proc. ACM Meas. Anal. Comput. Syst., March, 2023

Optimal Batched Best Arm Identification.
CoRR, 2023

Queer In AI: A Case Study in Community-Led Participatory AI.
CoRR, 2023

Thompson Sampling with Less Exploration is Fast and Optimal.
Proceedings of the International Conference on Machine Learning, 2023


Distributionally Robust Policy Gradient for Offline Contextual Bandits.
Proceedings of the International Conference on Artificial Intelligence and Statistics, 2023

2022
Active Ranking without Strong Stochastic Transitivity.
Proceedings of the Advances in Neural Information Processing Systems 35: Annual Conference on Neural Information Processing Systems 2022, 2022

Finite-Time Regret of Thompson Sampling Algorithms for Exponential Family Multi-Armed Bandits.
Proceedings of the Advances in Neural Information Processing Systems 35: Annual Conference on Neural Information Processing Systems 2022, 2022

Langevin Monte Carlo for Contextual Bandits.
Proceedings of the International Conference on Machine Learning, 2022

Neural Contextual Bandits with Deep Representation and Shallow Exploration.
Proceedings of the Tenth International Conference on Learning Representations, 2022

Adaptive Sampling for Heterogeneous Rank Aggregation from Noisy Pairwise Comparisons.
Proceedings of the International Conference on Artificial Intelligence and Statistics, 2022

2021
Faster Convergence of Stochastic Gradient Langevin Dynamics for Non-Log-Concave Sampling.
Proceedings of the Thirty-Seventh Conference on Uncertainty in Artificial Intelligence, 2021

Almost Optimal Anytime Algorithm for Batched Multi-Armed Bandits.
Proceedings of the 38th International Conference on Machine Learning, 2021

MOTS: Minimax Optimal Thompson Sampling.
Proceedings of the 38th International Conference on Machine Learning, 2021

Double Explore-then-Commit: Asymptotic Optimality and Beyond.
Proceedings of the Conference on Learning Theory, 2021

2020
Stochastic Nested Variance Reduction for Nonconvex Optimization.
J. Mach. Learn. Res., 2020

A Finite-Time Analysis of Two Time-Scale Actor-Critic Methods.
Proceedings of the Advances in Neural Information Processing Systems 33: Annual Conference on Neural Information Processing Systems 2020, 2020

A Finite-Time Analysis of Q-Learning with Neural Network Function Approximation.
Proceedings of the 37th International Conference on Machine Learning, 2020

Sample Efficient Policy Gradient Methods with Recursive Variance Reduction.
Proceedings of the 8th International Conference on Learning Representations, 2020

Rank Aggregation via Heterogeneous Thurstone Preference Models.
Proceedings of the Thirty-Fourth AAAI Conference on Artificial Intelligence, 2020

2019
Stochastic Variance-Reduced Cubic Regularization Methods.
J. Mach. Learn. Res., 2019

An Improved Convergence Analysis of Stochastic Variance-Reduced Policy Gradient.
Proceedings of the Thirty-Fifth Conference on Uncertainty in Artificial Intelligence, 2019

Stochastic Gradient Hamiltonian Monte Carlo Methods with Recursive Variance Reduction.
Proceedings of the Advances in Neural Information Processing Systems 32: Annual Conference on Neural Information Processing Systems 2019, 2019

Sampling from Non-Log-Concave Distributions via Variance-Reduced Gradient Langevin Dynamics.
Proceedings of the 22nd International Conference on Artificial Intelligence and Statistics, 2019

2018
Sample Efficient Stochastic Variance-Reduced Cubic Regularization Method.
CoRR, 2018

Finding Local Minima via Stochastic Nested Variance Reduction.
CoRR, 2018

Subsampled Stochastic Variance-Reduced Gradient Langevin Dynamics.
Proceedings of the Thirty-Fourth Conference on Uncertainty in Artificial Intelligence, 2018

Stochastic Nested Variance Reduced Gradient Descent for Nonconvex Optimization.
Proceedings of the Advances in Neural Information Processing Systems 31: Annual Conference on Neural Information Processing Systems 2018, 2018

Third-order Smoothness Helps: Faster Stochastic Optimization Algorithms for Finding Local Minima.
Proceedings of the Advances in Neural Information Processing Systems 31: Annual Conference on Neural Information Processing Systems 2018, 2018

Global Convergence of Langevin Dynamics Based Algorithms for Nonconvex Optimization.
Proceedings of the Advances in Neural Information Processing Systems 31: Annual Conference on Neural Information Processing Systems 2018, 2018

Stochastic Variance-Reduced Hamilton Monte Carlo Methods.
Proceedings of the 35th International Conference on Machine Learning, 2018

Stochastic Variance-Reduced Cubic Regularized Newton Method.
Proceedings of the 35th International Conference on Machine Learning, 2018

Continuous and Discrete-time Accelerated Stochastic Mirror Descent for Strongly Convex Functions.
Proceedings of the 35th International Conference on Machine Learning, 2018

Covariate Adjusted Precision Matrix Estimation via Nonconvex Optimization.
Proceedings of the 35th International Conference on Machine Learning, 2018

Accelerated Stochastic Mirror Descent: From Continuous-time Dynamics to Discrete-time Algorithms.
Proceedings of the International Conference on Artificial Intelligence and Statistics, 2018

2017
Third-order Smoothness Helps: Even Faster Stochastic Optimization Algorithms for Finding Local Minima.
CoRR, 2017

Speeding Up Latent Variable Gaussian Graphical Model Estimation via Nonconvex Optimizations.
CoRR, 2017

Global Convergence of Langevin Dynamics Based Algorithms for Nonconvex Optimization.
CoRR, 2017

Speeding Up Latent Variable Gaussian Graphical Model Estimation via Nonconvex Optimization.
Proceedings of the Advances in Neural Information Processing Systems 30: Annual Conference on Neural Information Processing Systems 2017, 2017

Uncertainty Assessment and False Discovery Rate Control in High-Dimensional Granger Causal Inference.
Proceedings of the 34th International Conference on Machine Learning, 2017

Efficient Algorithm for Sparse Tensor-variate Gaussian Graphical Models via Gradient Descent.
Proceedings of the 20th International Conference on Artificial Intelligence and Statistics, 2017

2016
Forward Backward Greedy Algorithms for Multi-Task Learning with Faster Rates.
Proceedings of the Thirty-Second Conference on Uncertainty in Artificial Intelligence, 2016

Semiparametric Differential Graph Models.
Proceedings of the Advances in Neural Information Processing Systems 29: Annual Conference on Neural Information Processing Systems 2016, 2016


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