Search Results for author: Renjie Chen

Found 9 papers, 0 papers with code

Learning Neural Volumetric Pose Features for Camera Localization

no code implementations19 Mar 2024 Jingyu Lin, Jiaqi Gu, Bojian Wu, Lubin Fan, Renjie Chen, Ligang Liu, Jieping Ye

We introduce a novel neural volumetric pose feature, termed PoseMap, designed to enhance camera localization by encapsulating the information between images and the associated camera poses.

Camera Localization

PCDNF: Revisiting Learning-based Point Cloud Denoising via Joint Normal Filtering

no code implementations2 Sep 2022 Zheng Liu, Yaowu Zhao, Sijing Zhan, Yuanyuan Liu, Renjie Chen, Ying He

Motivated by the essential interplay between point cloud denoising and normal filtering, we revisit point cloud denoising from a multitask perspective, and propose an end-to-end network, named PCDNF, to denoise point clouds via joint normal filtering.

Denoising

LogLG: Weakly Supervised Log Anomaly Detection via Log-Event Graph Construction

no code implementations23 Aug 2022 Hongcheng Guo, Yuhui Guo, Renjie Chen, Jian Yang, Jiaheng Liu, Zhoujun Li, Tieqiao Zheng, Weichao Hou, Liangfan Zheng, Bo Zhang

Experiments on five benchmarks validate the effectiveness of LogLG for detecting anomalies on unlabeled log data and demonstrate that LogLG, as the state-of-the-art weakly supervised method, achieves significant performance improvements compared to existing methods.

Anomaly Detection graph construction +1

Towards Understanding Catastrophic Overfitting in Fast Adversarial Training

no code implementations29 Sep 2021 Renjie Chen, Yuan Luo, Yisen Wang

After adversarial training was proposed, a series of works focus on improving the compunational efficiency of adversarial training for deep neural networks (DNNs).

Dissecting Local Properties of Adversarial Examples

no code implementations29 Sep 2021 Lu Chen, Renjie Chen, Hang Guo, Yuan Luo, Quanshi Zhang, Yisen Wang

Adversarial examples have attracted significant attention over the years, yet a sufficient understanding is in lack, especially when analyzing their performances in combination with adversarial training.

Adversarial Robustness

Clustering Activity-Travel Behavior Time Series using Topological Data Analysis

no code implementations17 Jul 2019 Renjie Chen, Jingyue Zhang, Nalini Ravishanker, Karthik Konduri

Over the last few years, traffic data has been exploding and the transportation discipline has entered the era of big data.

Clustering Time Series +2

A Scalable Heuristic for Fastest-Path Computation on Very Large Road Maps

no code implementations18 Dec 2018 Renjie Chen, Craig Gotsman

Fastest-path queries between two points in a very large road map is an increasingly important primitive in modern transportation and navigation systems, thus very efficient computation of these paths is critical for system performance and throughput.

Efficient Fastest-Path Computations in Road Maps

no code implementations2 Oct 2018 Renjie Chen, Craig Gotsman

We introduce a simple, but very effective, heuristic function based on a small number of values assigned to each graph vertex.

A Self-Balanced Min-Cut Algorithm for Image Clustering

no code implementations ICCV 2017 Xiaojun Chen, Joshua Zhexue Haung, Feiping Nie, Renjie Chen, Qingyao Wu

In the new method, a self-balanced min-cut model is proposed in which the Exclusive Lasso is implicitly introduced as a balance regularizer in order to produce balanced partition.

Clustering Content-Based Image Retrieval +2

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