Search Results for author: Xuan Li

Found 38 papers, 11 papers with code

Tree-Regularized Tabular Embeddings

1 code implementation1 Mar 2024 Xuan Li, Yun Wang, Bo Li

Tabular neural network (NN) has attracted remarkable attentions and its recent advances have gradually narrowed the performance gap with respect to tree-based models on many public datasets.

Binary Classification

VR-GS: A Physical Dynamics-Aware Interactive Gaussian Splatting System in Virtual Reality

no code implementations30 Jan 2024 Ying Jiang, Chang Yu, Tianyi Xie, Xuan Li, Yutao Feng, Huamin Wang, Minchen Li, Henry Lau, Feng Gao, Yin Yang, Chenfanfu Jiang

As consumer Virtual Reality (VR) and Mixed Reality (MR) technologies gain momentum, there's a growing focus on the development of engagements with 3D virtual content.

Mixed Reality Semantic Segmentation

Improving Expressive Power of Spectral Graph Neural Networks with Eigenvalue Correction

no code implementations28 Jan 2024 Kangkang Lu, Yanhua Yu, Hao Fei, Xuan Li, Zixuan Yang, Zirui Guo, Meiyu Liang, Mengran Yin, Tat-Seng Chua

Moreover, we theoretically establish that the number of distinguishable eigenvalues plays a pivotal role in determining the expressive power of spectral graph neural networks.

Node Classification

Less or More From Teacher: Exploiting Trilateral Geometry For Knowledge Distillation

no code implementations22 Dec 2023 Chengming Hu, Haolun Wu, Xuan Li, Chen Ma, Xi Chen, Jun Yan, Boyu Wang, Xue Liu

A simple neural network then learns the implicit mapping from the intra- and inter-sample relations to an adaptive, sample-wise knowledge fusion ratio in a bilevel-optimization manner.

Bilevel Optimization Click-Through Rate Prediction +2

PIE-NeRF: Physics-based Interactive Elastodynamics with NeRF

no code implementations22 Nov 2023 Yutao Feng, Yintong Shang, Xuan Li, Tianjia Shao, Chenfanfu Jiang, Yin Yang

We show that physics-based simulations can be seamlessly integrated with NeRF to generate high-quality elastodynamics of real-world objects.

PhysGaussian: Physics-Integrated 3D Gaussians for Generative Dynamics

no code implementations20 Nov 2023 Tianyi Xie, Zeshun Zong, Yuxing Qiu, Xuan Li, Yutao Feng, Yin Yang, Chenfanfu Jiang

We introduce PhysGaussian, a new method that seamlessly integrates physically grounded Newtonian dynamics within 3D Gaussians to achieve high-quality novel motion synthesis.

Motion Synthesis

DeepInception: Hypnotize Large Language Model to Be Jailbreaker

1 code implementation6 Nov 2023 Xuan Li, Zhanke Zhou, Jianing Zhu, Jiangchao Yao, Tongliang Liu, Bo Han

Despite remarkable success in various applications, large language models (LLMs) are vulnerable to adversarial jailbreaks that make the safety guardrails void.

Language Modelling Large Language Model

Neural Atoms: Propagating Long-range Interaction in Molecular Graphs through Efficient Communication Channel

no code implementations2 Nov 2023 Xuan Li, Zhanke Zhou, Jiangchao Yao, Yu Rong, Lu Zhang, Bo Han

To tackle this issue, we propose a method to abstract the collective information of atomic groups into a few $\textit{Neural Atoms}$ by implicitly projecting the atoms of a molecular.

Drug Discovery

Teacher-Student Architecture for Knowledge Distillation: A Survey

no code implementations8 Aug 2023 Chengming Hu, Xuan Li, Dan Liu, Haolun Wu, Xi Chen, Ju Wang, Xue Liu

Recently, Teacher-Student architectures have been effectively and widely embraced on various knowledge distillation (KD) objectives, including knowledge compression, knowledge expansion, knowledge adaptation, and knowledge enhancement.

Knowledge Distillation regression

On Strengthening and Defending Graph Reconstruction Attack with Markov Chain Approximation

1 code implementation15 Jun 2023 Zhanke Zhou, Chenyu Zhou, Xuan Li, Jiangchao Yao, Quanming Yao, Bo Han

Although powerful graph neural networks (GNNs) have boosted numerous real-world applications, the potential privacy risk is still underexplored.

Graph Reconstruction Reconstruction Attack

PAI at SemEval-2023 Task 2: A Universal System for Named Entity Recognition with External Entity Information

1 code implementation10 May 2023 Long Ma, Kai Lu, Tianbo Che, Hailong Huang, Weiguo Gao, Xuan Li

The MultiCoNER II task aims to detect complex, ambiguous, and fine-grained named entities in low-context situations and noisy scenarios like the presence of spelling mistakes and typos for multiple languages.

named-entity-recognition Named Entity Recognition +3

PAC-NeRF: Physics Augmented Continuum Neural Radiance Fields for Geometry-Agnostic System Identification

no code implementations9 Mar 2023 Xuan Li, Yi-Ling Qiao, Peter Yichen Chen, Krishna Murthy Jatavallabhula, Ming Lin, Chenfanfu Jiang, Chuang Gan

In this work, we aim to identify parameters characterizing a physical system from a set of multi-view videos without any assumption on object geometry or topology.

Neural Rendering Object

Teacher-Student Architecture for Knowledge Learning: A Survey

no code implementations28 Oct 2022 Chengming Hu, Xuan Li, Dan Liu, Xi Chen, Ju Wang, Xue Liu

To tackle this issue, Teacher-Student architectures were first utilized in knowledge distillation, where simple student networks can achieve comparable performance to deep teacher networks.

Knowledge Distillation Multi-Task Learning

Confidence-Guided Unsupervised Domain Adaptation for Cerebellum Segmentation

no code implementations14 Jun 2022 Xuan Li, Paule-J Toussaint, Alan Evans, Xue Liu

To dispense with the manual annotation requirement, we propose to train a model to adaptively transfer the annotation from the cerebellum on the Allen Brain Human Brain Atlas to the BigBrain in an unsupervised manner, taking into account the different staining and spacing between sections.

Segmentation Semantic Segmentation +1

A Diversity-Enhanced and Constraints-Relaxed Augmentation for Low-Resource Classification

no code implementations24 Sep 2021 Guang Liu, Hailong Huang, Yuzhao Mao, Weiguo Gao, Xuan Li, Jianping Shen

Previous studies mostly use a fine-tuned Language Model (LM) to strengthen the constraints but ignore the fact that the potential of diversity could improve the effectiveness of generated data.

Data Augmentation Language Modelling

Adversarial Mixing Policy for Relaxing Locally Linear Constraints in Mixup

1 code implementation EMNLP 2021 Guang Liu, Yuzhao Mao, Hailong Huang, Weiguo Gao, Xuan Li

To address these issues, we propose the Adversarial Mixing Policy (AMP), organized in a min-max-rand formulation, to relax the Locally Linear Constraints in Mixup.

text-classification Text Classification

CE-Dedup: Cost-Effective Convolutional Neural Nets Training based on Image Deduplication

no code implementations23 Aug 2021 Xuan Li, Liqiong Chang, Xue Liu

To this end, this paper proposes a framework to assess the impact of the near-duplicate images on CNN training performance, called CE-Dedup.

Image Classification

1213Li at SemEval-2021 Task 6: Detection of Propaganda with Multi-modal Attention and Pre-trained Models

no code implementations SEMEVAL 2021 Peiguang Li, Xuan Li, Xian Sun

This paper presents the solution proposed by the 1213Li team for subtask 3 in SemEval-2021 Task 6: identifying the multiple persuasion techniques used in the multi-modal content of the meme.

Monadic Pavlovian associative learning in a backpropagation-free photonic network

no code implementations30 Nov 2020 James Y. S. Tan, Zengguang Cheng, Johannes Feldmann, Xuan Li, Nathan Youngblood, Utku E. Ali, C. David Wright, Wolfram H. P. Pernice, Harish Bhaskaran

Here we experimentally demonstrate a form of backpropagation-free learning using a single (or monadic) associative hardware element.

CSLNSpeech: solving extended speech separation problem with the help of Chinese sign language

1 code implementation21 Jul 2020 Jiasong Wu, Xuan Li, Taotao Li, Fanman Meng, Youyong Kong, Guanyu Yang, Lotfi Senhadji, Huazhong Shu

We design a general deep learning network for learning the combination of three modalities, audio, face, and sign language information, for better solving the speech separation problem.

Self-Supervised Learning Speech Separation

Cross-ethnicity Face Anti-spoofing Recognition Challenge: A Review

no code implementations23 Apr 2020 Ajian Liu, Xuan Li, Jun Wan, Sergio Escalera, Hugo Jair Escalante, Meysam Madadi, Yi Jin, Zhuoyuan Wu, Xiaogang Yu, Zichang Tan, Qi Yuan, Ruikun Yang, Benjia Zhou, Guodong Guo, Stan Z. Li

Although ethnic bias has been verified to severely affect the performance of face recognition systems, it still remains an open research problem in face anti-spoofing.

Face Anti-Spoofing Face Recognition

CASIA-SURF CeFA: A Benchmark for Multi-modal Cross-ethnicity Face Anti-spoofing

no code implementations11 Mar 2020 Ajian Li, Zichang Tan, Xuan Li, Jun Wan, Sergio Escalera, Guodong Guo, Stan Z. Li

Ethnic bias has proven to negatively affect the performance of face recognition systems, and it remains an open research problem in face anti-spoofing.

Face Anti-Spoofing Face Recognition

Hierarchical Context Enhanced Multi-Domain Dialogue System for Multi-domain Task Completion

no code implementations3 Mar 2020 Jingyuan Yang, Guang Liu, Yuzhao Mao, Zhiwei Zhao, Weiguo Gao, Xuan Li, Haiqin Yang, Jianping Shen

Task 1 of the DSTC8-track1 challenge aims to develop an end-to-end multi-domain dialogue system to accomplish complex users' goals under tourist information desk settings.

Sentence

Lagrangian-Eulerian Multi-Density Topology Optimization with the Material Point Method

2 code implementations2 Mar 2020 Yue Li, Xuan Li, Minchen Li, Yixin Zhu, Bo Zhu, Chenfanfu Jiang

A quadrature-level connectivity graph-based method is adopted to avoid the artificial checkerboard issues commonly existing in multi-resolution topology optimization methods.

Computational Physics Computational Engineering, Finance, and Science Graphics

Static and Dynamic Fusion for Multi-modal Cross-ethnicity Face Anti-spoofing

no code implementations5 Dec 2019 Ajian Liu, Zichang Tan, Xuan Li, Jun Wan, Sergio Escalera, Guodong Guo, Stan Z. Li

Regardless of the usage of deep learning and handcrafted methods, the dynamic information from videos and the effect of cross-ethnicity are rarely considered in face anti-spoofing.

Face Anti-Spoofing

An End-to-end Video Text Detector with Online Tracking

no code implementations20 Aug 2019 Hongyuan Yu, Chengquan Zhang, Xuan Li, Junyu Han, Errui Ding, Liang Wang

Most existing methods attempt to enhance the performance of video text detection by cooperating with video text tracking, but treat these two tasks separately.

Text Detection

The ParallelEye Dataset: Constructing Large-Scale Artificial Scenes for Traffic Vision Research

no code implementations22 Dec 2017 Xuan Li, Kunfeng Wang, Yonglin Tian, Lan Yan, Fei-Yue Wang

As a result, we present a viable implementation pipeline for constructing large-scale artificial scenes for traffic vision research.

Instance Segmentation Object Tracking +2

Training and Testing Object Detectors with Virtual Images

no code implementations22 Dec 2017 Yonglin Tian, Xuan Li, Kunfeng Wang, Fei-Yue Wang

In the area of computer vision, deep learning has produced a variety of state-of-the-art models that rely on massive labeled data.

Object

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