Search Results for author: Qiyu Kang

Found 18 papers, 10 papers with code

Coupling Graph Neural Networks with Fractional Order Continuous Dynamics: A Robustness Study

no code implementations9 Jan 2024 Qiyu Kang, Kai Zhao, Yang song, Yihang Xie, Yanan Zhao, Sijie Wang, Rui She, Wee Peng Tay

In this work, we rigorously investigate the robustness of graph neural fractional-order differential equation (FDE) models.

PosDiffNet: Positional Neural Diffusion for Point Cloud Registration in a Large Field of View with Perturbations

no code implementations6 Jan 2024 Rui She, Sijie Wang, Qiyu Kang, Kai Zhao, Yang song, Wee Peng Tay, Tianyu Geng, Xingchao Jian

We leverage a graph neural partial differential equation (PDE) based on Beltrami flow to obtain high-dimensional features and position embeddings for point clouds.

Point Cloud Registration Position

DistilVPR: Cross-Modal Knowledge Distillation for Visual Place Recognition

1 code implementation17 Dec 2023 Sijie Wang, Rui She, Qiyu Kang, Xingchao Jian, Kai Zhao, Yang song, Wee Peng Tay

The utilization of multi-modal sensor data in visual place recognition (VPR) has demonstrated enhanced performance compared to single-modal counterparts.

Knowledge Distillation Visual Place Recognition

Image Patch-Matching with Graph-Based Learning in Street Scenes

no code implementations8 Nov 2023 Rui She, Qiyu Kang, Sijie Wang, Wee Peng Tay, Yong Liang Guan, Diego Navarro Navarro, Andreas Hartmannsgruber

Matching landmark patches from a real-time image captured by an on-vehicle camera with landmark patches in an image database plays an important role in various computer perception tasks for autonomous driving.

Autonomous Driving Metric Learning +1

RobustMat: Neural Diffusion for Street Landmark Patch Matching under Challenging Environments

1 code implementation7 Nov 2023 Rui She, Qiyu Kang, Sijie Wang, Yuan-Rui Yang, Kai Zhao, Yang song, Wee Peng Tay

For autonomous vehicles (AVs), visual perception techniques based on sensors like cameras play crucial roles in information acquisition and processing.

Autonomous Vehicles Patch Matching

Adversarial Robustness in Graph Neural Networks: A Hamiltonian Approach

1 code implementation NeurIPS 2023 Kai Zhao, Qiyu Kang, Yang song, Rui She, Sijie Wang, Wee Peng Tay

Graph neural networks (GNNs) are vulnerable to adversarial perturbations, including those that affect both node features and graph topology.

Adversarial Robustness

Node Embedding from Neural Hamiltonian Orbits in Graph Neural Networks

1 code implementation30 May 2023 Qiyu Kang, Kai Zhao, Yang song, Sijie Wang, Wee Peng Tay

In the graph node embedding problem, embedding spaces can vary significantly for different data types, leading to the need for different GNN model types.

Graph Embedding Link Prediction +1

Graph Neural Convection-Diffusion with Heterophily

1 code implementation26 May 2023 Kai Zhao, Qiyu Kang, Yang song, Rui She, Sijie Wang, Wee Peng Tay

Graph neural networks (GNNs) have shown promising results across various graph learning tasks, but they often assume homophily, which can result in poor performance on heterophilic graphs.

Graph Learning Node Classification

Node Embedding from Hamiltonian Information Propagation in Graph Neural Networks

no code implementations2 Mar 2023 Qiyu Kang, Kai Zhao, Yang song, Sijie Wang, Rui She, Wee Peng Tay

Graph neural networks (GNNs) have achieved success in various inference tasks on graph-structured data.

RobustLoc: Robust Camera Pose Regression in Challenging Driving Environments

1 code implementation21 Nov 2022 Sijie Wang, Qiyu Kang, Rui She, Wee Peng Tay, Andreas Hartmannsgruber, Diego Navarro Navarro

Experiments demonstrate that RobustLoc surpasses current state-of-the-art camera pose regression models and achieves robust performance in various environments.

Autonomous Driving camera absolute pose regression +2

On the Robustness of Graph Neural Diffusion to Topology Perturbations

1 code implementation16 Sep 2022 Yang song, Qiyu Kang, Sijie Wang, Zhao Kai, Wee Peng Tay

In this work, we explore the robustness properties of graph neural PDEs.

Building Facade Parsing R-CNN

1 code implementation12 May 2022 Sijie Wang, Qiyu Kang, Rui She, Wee Peng Tay, Diego Navarro Navarro, Andreas Hartmannsgruber

Building facade parsing, which predicts pixel-level labels for building facades, has applications in computer vision perception for autonomous vehicle (AV) driving.

Stable Neural ODE with Lyapunov-Stable Equilibrium Points for Defending Against Adversarial Attacks

2 code implementations NeurIPS 2021 Qiyu Kang, Yang song, Qinxu Ding, Wee Peng Tay

By ensuring that the equilibrium points of the ODE solution used as part of SODEF is Lyapunov-stable, the ODE solution for an input with a small perturbation converges to the same solution as the unperturbed input.

Error-Correcting Output Codes with Ensemble Diversity for Robust Learning in Neural Networks

no code implementations30 Nov 2019 Yang Song, Qiyu Kang, Wee Peng Tay

Though deep learning has been applied successfully in many scenarios, malicious inputs with human-imperceptible perturbations can make it vulnerable in real applications.

Multi-class Classification

Learning Orthogonal Projections in Linear Bandits

no code implementations26 Jun 2019 Qiyu Kang, Wee Peng Tay

In the case where each arm is chosen from an infinite compact set, our strategy achieves $O(n^{2/3}(\log{n})^{1/2})$ regret.

Task Recommendation in Crowdsourcing Based on Learning Preferences and Reliabilities

no code implementations27 Jul 2018 Qiyu Kang, Wee Peng Tay

We develop three task recommendation strategies to determine the number of gold tasks for different task categories, and show that they are order optimal.

Sequential Multi-Class Labeling in Crowdsourcing

no code implementations6 Nov 2017 Qiyu Kang, Wee Peng Tay

As workers may be unreliable, we propose to perform sequential questioning in which the questions posed to the workers are designed based on previous questions and answers.

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