activity
20172023
most citedInvisible Units Detection and Estimation Based on Random Matrix Theory

58 citations · 77 across the 10 of their papers we have counts for

collaborators

10 papers

cs.CV2023

Timestamp-supervised Wearable-based Activity Segmentation and Recognition with Contrastive Learning and Order-Preserving Optimal Transport

Songpengcheng Xia, Lei Chu, Ling Pei +3

Human activity recognition (HAR) with wearables is one of the serviceable technologies in ubiquitous and mobile computing applications. The sliding-window scheme is widely adopted…

cs.CV2022

Multi-level Contrast Network for Wearables-based Joint Activity Segmentation and Recognition

Songpengcheng Xia, Lei Chu, Ling Pei +2

Human activity recognition (HAR) with wearables is promising research that can be widely adopted in many smart healthcare applications. In recent years, the deep learning-based HAR…

cs.CV2022★ 5 cited

Self-Supervised Point Cloud Registration with Deep Versatile Descriptors

Dongrui Liu, Chuanchuan Chen, Changqing Xu +2

As a fundamental yet challenging problem in intelligent transportation systems, point cloud registration attracts vast attention and has been attained with various deep learning-ba…

cs.CV2020★ 2 cited

MARS: Mixed Virtual and Real Wearable Sensors for Human Activity Recognition with Multi-Domain Deep Learning Model

Ling Pei, Songpengcheng Xia, Lei Chu +4

Together with the rapid development of the Internet of Things (IoT), human activity recognition (HAR) using wearable Inertial Measurement Units (IMUs) becomes a promising technolog…

cs.CV2020

A Robust and Reliable Point Cloud Recognition Network Under Rigid Transformation

Dongrui Liu, Chuanchuan Chen, Changqing Xu +4

Point cloud recognition is an essential task in industrial robotics and autonomous driving. Recently, several point cloud processing models have achieved state-of-the-art performan…

cs.CV2020★ 8 cited

A Deep Learning Method for Complex Human Activity Recognition Using Virtual Wearable Sensors

Fanyi Xiao, Ling Pei, Lei Chu +4

Sensor-based human activity recognition (HAR) is now a research hotspot in multiple application areas. With the rise of smart wearable devices equipped with inertial measurement un…

eess.SP2019

Improving Power System State Estimation Based on Matrix-Level Cleaning

Haosen Yang, Robert C. Qiu, Lei Chu +3

Power system state estimation is heavily subjected to measurement error, which comes from the noise of measuring instruments, communication noise, and some unclear randomness. Trad…

eess.SP2018★ 1 cited

Eigen-Inference Precoding for Coarsely Quantized Massive MU-MIMO System with Imperfect CSI

Lei Chu, Robert Qiu, Fei Wen

This work considers the precoding problem in massive multiuser multiple-input multiple-output (MU-MIMO) systems equipped with low-resolution digital-to-analog converters (DACs). In…

stat.AP2018★ 3 cited

Early Anomaly Detection and Location in Distribution Network: A Data-Driven Approach

Xin Shi, Robert Qiu, Xing He +3

The measurement data collected from the supervisory control and data acquisition (SCADA) system installed in distribution network can reflect the operational state of the network e…

stat.AP2017★ 58 cited

Invisible Units Detection and Estimation Based on Random Matrix Theory

Xing He, Lei Chu, Robert C. Qiu +3

Invisible units mainly refer to small-scale units that are not monitored by, and thus are not visible to utilities. Integration of these invisible units into power systems does sig…