Search Results for author: Cheng Ding

Found 10 papers, 5 papers with code

Reconsideration on evaluation of machine learning models in continuous monitoring using wearables

no code implementations4 Dec 2023 Cheng Ding, Zhicheng Guo, Cynthia Rudin, Ran Xiao, Fadi B Nahab, Xiao Hu

This paper explores the challenges in evaluating machine learning (ML) models for continuous health monitoring using wearable devices beyond conventional metrics.

Photoplethysmography based atrial fibrillation detection: an updated review from July 2019

no code implementations22 Oct 2023 Cheng Ding, Ran Xiao, Weijia Wang, Elizabeth Holdsworth, Xiao Hu

This paper offers a comprehensive review of the latest advancements in PPG-based AF detection, utilizing digital health and artificial intelligence (AI) solutions, within the timeframe spanning from July 2019 to December 2022.

Atrial Fibrillation Detection Photoplethysmography (PPG)

A Self-Supervised Algorithm for Denoising Photoplethysmography Signals for Heart Rate Estimation from Wearables

no code implementations7 Jul 2023 Pranay Jain, Cheng Ding, Cynthia Rudin, Xiao Hu

Smart watches and other wearable devices are equipped with photoplethysmography (PPG) sensors for monitoring heart rate and other aspects of cardiovascular health.

Denoising Heart rate estimation +1

Learned Kernels for Sparse, Interpretable, and Efficient Medical Time Series Processing

1 code implementation6 Jul 2023 Sully F. Chen, Zhicheng Guo, Cheng Ding, Xiao Hu, Cynthia Rudin

Results: Our interpretable method achieves greater than 99% of the performance of the state-of-the-art methods on the PPG artifact detection task, and even outperforms the state-of-the-art on a challenging out-of-distribution test set, while using dramatically fewer parameters (2% of the parameters of Segade, and about half of the parameters of Tiny-PPG).

Artifact Detection Atrial Fibrillation Detection +2

Learning From Alarms: A Robust Learning Approach for Accurate Photoplethysmography-Based Atrial Fibrillation Detection using Eight Million Samples Labeled with Imprecise Arrhythmia Alarms

1 code implementation7 Nov 2022 Cheng Ding, Zhicheng Guo, Cynthia Rudin, Ran Xiao, Amit Shah, Duc H. Do, Randall J Lee, Gari Clifford, Fadi B Nahab, Xiao Hu

To address this challenge, in this study, we propose to leverage AF alarms from bedside patient monitors to label concurrent PPG signals, resulting in the largest PPG-AF dataset so far (8. 5M 30-second records from 24100 patients) and demonstrating a practical approach to build large labeled PPG datasets.

Atrial Fibrillation Detection Computational Efficiency +2

Log-Spectral Matching GAN: PPG-based Atrial Fibrillation Detection can be Enhanced by GAN-based Data Augmentation with Integration of Spectral Loss

no code implementations11 Aug 2021 Cheng Ding, Ran Xiao, Duc Do, David Scott Lee, Shadi Kalantarian, Randall J Lee, Xiao Hu

Photoplethysmography (PPG) is a ubiquitous physiological measurement that detects beat-to-beat pulsatile blood volume changes and hence has a potential for monitoring cardiovascular conditions, particularly in ambulatory settings.

Atrial Fibrillation Detection Data Augmentation +1

Tree-Structured Topic Modeling with Nonparametric Neural Variational Inference

1 code implementation ACL 2021 Ziye Chen, Cheng Ding, Zusheng Zhang, Yanghui Rao, Haoran Xie

Topic modeling has been widely used for discovering the latent semantic structure of documents, but most existing methods learn topics with a flat structure.

Variational Inference

Context Reinforced Neural Topic Modeling over Short Texts

1 code implementation11 Aug 2020 Jiachun Feng, Zusheng Zhang, Cheng Ding, Yanghui Rao, Haoran Xie

As one of the prevalent topic mining tools, neural topic modeling has attracted a lot of interests for the advantages of high efficiency in training and strong generalisation abilities.

text-classification Topic Models +1

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