Search Results for author: Jingwei Xu

Found 28 papers, 15 papers with code

Softened Symbol Grounding for Neuro-symbolic Systems

1 code implementation1 Mar 2024 Zenan Li, Yuan YAO, Taolue Chen, Jingwei Xu, Chun Cao, Xiaoxing Ma, Jian Lü

Neuro-symbolic learning generally consists of two separated worlds, i. e., neural network training and symbolic constraint solving, whose success hinges on symbol grounding, a fundamental problem in AI.

Learning with Logical Constraints but without Shortcut Satisfaction

1 code implementation1 Mar 2024 Zenan Li, Zehua Liu, Yuan YAO, Jingwei Xu, Taolue Chen, Xiaoxing Ma, Jian Lü

In this paper, we present a new framework for learning with logical constraints.

Securing Reliability: A Brief Overview on Enhancing In-Context Learning for Foundation Models

no code implementations27 Feb 2024 Yunpeng Huang, Yaonan Gu, Jingwei Xu, Zhihong Zhu, Zhaorun Chen, Xiaoxing Ma

As foundation models (FMs) continue to shape the landscape of AI, the in-context learning (ICL) paradigm thrives but also encounters issues such as toxicity, hallucination, disparity, adversarial vulnerability, and inconsistency.

Hallucination In-Context Learning

Advancing Transformer Architecture in Long-Context Large Language Models: A Comprehensive Survey

1 code implementation21 Nov 2023 Yunpeng Huang, Jingwei Xu, Junyu Lai, Zixu Jiang, Taolue Chen, Zenan Li, Yuan YAO, Xiaoxing Ma, Lijuan Yang, Hao Chen, Shupeng Li, Penghao Zhao

Transformer-based Large Language Models (LLMs) have been applied in diverse areas such as knowledge bases, human interfaces, and dynamic agents, and marking a stride towards achieving Artificial General Intelligence (AGI).

Navigate

DebSDF: Delving into the Details and Bias of Neural Indoor Scene Reconstruction

no code implementations29 Aug 2023 Yuting Xiao, Jingwei Xu, Zehao Yu, Shenghua Gao

This paper presents \textbf{DebSDF} to address these challenges, focusing on the utilization of uncertainty in monocular priors and the bias in SDF-based volume rendering.

Indoor Scene Reconstruction Surface Reconstruction

Out-of-Domain Human Mesh Reconstruction via Dynamic Bilevel Online Adaptation

1 code implementation7 Nov 2021 Shanyan Guan, Jingwei Xu, Michelle Z. He, Yunbo Wang, Bingbing Ni, Xiaokang Yang

We consider a new problem of adapting a human mesh reconstruction model to out-of-domain streaming videos, where performance of existing SMPL-based models are significantly affected by the distribution shift represented by different camera parameters, bone lengths, backgrounds, and occlusions.

3D Absolute Human Pose Estimation Bilevel Optimization

PyTouch: A Machine Learning Library for Touch Processing

1 code implementation26 May 2021 Mike Lambeta, Huazhe Xu, Jingwei Xu, Po-Wei Chou, Shaoxiong Wang, Trevor Darrell, Roberto Calandra

With the increased availability of rich tactile sensors, there is an equally proportional need for open-source and integrated software capable of efficiently and effectively processing raw touch measurements into high-level signals that can be used for control and decision-making.

BIG-bench Machine Learning Decision Making +1

Bilevel Online Adaptation for Out-of-Domain Human Mesh Reconstruction

1 code implementation CVPR 2021 Shanyan Guan, Jingwei Xu, Yunbo Wang, Bingbing Ni, Xiaokang Yang

This paper considers a new problem of adapting a pre-trained model of human mesh reconstruction to out-of-domain streaming videos.

3D Human Pose Estimation

Joint Distribution across Representation Space for Out-of-Distribution Detection

no code implementations23 Mar 2021 Jingwei Xu, Siyuan Zhu, Zenan Li, Chang Xu

Specifically, We construct a generative model, called Latent Sequential Gaussian Mixture (LSGM), to depict how the in-distribution latent features are generated in terms of the trace of DNN inference across representation spaces.

Out-of-Distribution Detection Out of Distribution (OOD) Detection

Skeleton2Mesh: Kinematics Prior Injected Unsupervised Human Mesh Recovery

no code implementations ICCV 2021 Zhenbo Yu, Junjie Wang, Jingwei Xu, Bingbing Ni, Chenglong Zhao, Minsi Wang, Wenjun Zhang

The challenges of the latter task are two folds: (1) pose failure (i. e., pose mismatching -- different skeleton definitions in dataset and SMPL , and pose ambiguity -- endpoints have arbitrary joint angle configurations for the same 3D joint coordinates).

3D Pose Estimation Human Mesh Recovery

Synthesizing Long-Term 3D Human Motion and Interaction in 3D Scenes

1 code implementation CVPR 2021 Jiashun Wang, Huazhe Xu, Jingwei Xu, Sifei Liu, Xiaolong Wang

Synthesizing 3D human motion plays an important role in many graphics applications as well as understanding human activity.

Motion Synthesis

Towards Good Practices of U-Net for Traffic Forecasting

1 code implementation4 Dec 2020 Jingwei Xu, Jianjin Zhang, Zhiyu Yao, Yunbo Wang

This technical report presents a solution for the 2020 Traffic4Cast Challenge.

Hierarchical Style-based Networks for Motion Synthesis

no code implementations ECCV 2020 Jingwei Xu, Huazhe Xu, Bingbing Ni, Xiaokang Yang, Xiaolong Wang, Trevor Darrell

Generating diverse and natural human motion is one of the long-standing goals for creating intelligent characters in the animated world.

Motion Synthesis

Video Prediction via Example Guidance

1 code implementation ICML 2020 Jingwei Xu, Huazhe Xu, Bingbing Ni, Xiaokang Yang, Trevor Darrell

In video prediction tasks, one major challenge is to capture the multi-modal nature of future contents and dynamics.

Video Prediction

Reinventing 2D Convolutions for 3D Images

2 code implementations24 Nov 2019 Jiancheng Yang, Xiaoyang Huang, Yi He, Jingwei Xu, Canqian Yang, Guozheng Xu, Bingbing Ni

Theoretically, ANY 2D CNN (ResNet, DenseNet, or DeepLab) is able to be converted into a 3D ACS CNN, with pretrained weight of a same parameter size.

Representation Learning

Operational Calibration: Debugging Confidence Errors for DNNs in the Field

no code implementations6 Oct 2019 Zenan Li, Xiaoxing Ma, Chang Xu, Jingwei Xu, Chun Cao, Jian Lü

Trained DNN models are increasingly adopted as integral parts of software systems, but they often perform deficiently in the field.

Composable Semi-parametric Modelling for Long-range Motion Generation

no code implementations25 Sep 2019 Jingwei Xu, Huazhe Xu, Bingbing Ni, Xiaokang Yang, Trevor Darrell

Learning diverse and natural behaviors is one of the longstanding goal for creating intelligent characters in the animated world.

Boosting Operational DNN Testing Efficiency through Conditioning

1 code implementation6 Jun 2019 Zenan Li, Xiaoxing Ma, Chang Xu, Chun Cao, Jingwei Xu, Jian Lü

With the increasing adoption of Deep Neural Network (DNN) models as integral parts of software systems, efficient operational testing of DNNs is much in demand to ensure these models' actual performance in field conditions.

DNN Testing

Video Prediction via Selective Sampling

1 code implementation NeurIPS 2018 Jingwei Xu, Bingbing Ni, Xiaokang Yang

Most adversarial learning based video prediction methods suffer from image blur, since the commonly used adversarial and regression loss pair work rather in a competitive way than collaboration, yielding compromised blur effect.

Multiple-choice Video Prediction

Structure Preserving Video Prediction

no code implementations CVPR 2018 Jingwei Xu, Bingbing Ni, Zefan Li, Shuo Cheng, Xiaokang Yang

Despite recent emergence of adversarial based methods for video prediction, existing algorithms often produce unsatisfied results in image regions with rich structural information (i. e., object boundary) and detailed motion (i. e., articulated body movement).

Object Video Prediction

Depth Structure Preserving Scene Image Generation

no code implementations1 Jun 2017 Wendong Zhang, Bingbing Ni, Yichao Yan, Jingwei Xu, Xiaokang Yang

Key to automatically generate natural scene images is to properly arrange among various spatial elements, especially in the depth direction.

Image Generation Scene Generation

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