Search Results for author: Hanjing Wang

Found 9 papers, 2 papers with code

Epistemic Uncertainty Quantification For Pre-trained Neural Network

no code implementations15 Apr 2024 Hanjing Wang, Qiang Ji

Specifically, we propose a gradient-based approach to assess epistemic uncertainty, analyzing the gradients of outputs relative to model parameters, and thereby indicating necessary model adjustments to accurately represent the inputs.

Active Learning Out-of-Distribution Detection +1

GEAR: A GPU-Centric Experience Replay System for Large Reinforcement Learning Models

1 code implementation8 Oct 2023 Hanjing Wang, Man-Kit Sit, Congjie He, Ying Wen, Weinan Zhang, Jun Wang, Yaodong Yang, Luo Mai

This paper introduces a distributed, GPU-centric experience replay system, GEAR, designed to perform scalable reinforcement learning (RL) with large sequence models (such as transformers).

Reinforcement Learning (RL)

Body Knowledge and Uncertainty Modeling for Monocular 3D Human Body Reconstruction

no code implementations ICCV 2023 Yufei Zhang, Hanjing Wang, Jeffrey O. Kephart, Qiang Ji

While 3D body reconstruction methods have made remarkable progress recently, it remains difficult to acquire the sufficiently accurate and numerous 3D supervisions required for training.

3D Reconstruction

Large Sequence Models for Sequential Decision-Making: A Survey

no code implementations24 Jun 2023 Muning Wen, Runji Lin, Hanjing Wang, Yaodong Yang, Ying Wen, Luo Mai, Jun Wang, Haifeng Zhang, Weinan Zhang

Transformer architectures have facilitated the development of large-scale and general-purpose sequence models for prediction tasks in natural language processing and computer vision, e. g., GPT-3 and Swin Transformer.

Decision Making

Gradient-based Uncertainty Attribution for Explainable Bayesian Deep Learning

no code implementations CVPR 2023 Hanjing Wang, Dhiraj Joshi, Shiqiang Wang, Qiang Ji

Predictions made by deep learning models are prone to data perturbations, adversarial attacks, and out-of-distribution inputs.

Uncertainty Quantification

MALib: A Parallel Framework for Population-based Multi-agent Reinforcement Learning

1 code implementation5 Jun 2021 Ming Zhou, Ziyu Wan, Hanjing Wang, Muning Wen, Runzhe Wu, Ying Wen, Yaodong Yang, Weinan Zhang, Jun Wang

Our framework is comprised of three key components: (1) a centralized task dispatching model, which supports the self-generated tasks and scalable training with heterogeneous policy combinations; (2) a programming architecture named Actor-Evaluator-Learner, which achieves high parallelism for both training and sampling, and meets the evaluation requirement of auto-curriculum learning; (3) a higher-level abstraction of MARL training paradigms, which enables efficient code reuse and flexible deployments on different distributed computing paradigms.

Atari Games Distributed Computing +3

Towards Efficient Discrete Integration via Adaptive Quantile Queries

no code implementations13 Oct 2019 Fan Ding, Hanjing Wang, Ashish Sabharwal, Yexiang Xue

On a suite of UAI inference challenge benchmarks, it saves 81. 5% of WISH queries while retaining the quality of results.

DCNN-GAN: Reconstructing Realistic Image from fMRI

no code implementations13 Jan 2019 Yunfeng Lin, Jiangbei Li, Hanjing Wang

Visualizing the perceptual content by analyzing human functional magnetic resonance imaging (fMRI) has been an active research area.

Generative Adversarial Network

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