Search Results for author: Gari D. Clifford

Found 18 papers, 4 papers with code

Benchmarking changepoint detection algorithms on cardiac time series

no code implementations16 Apr 2024 Ayse Cakmak, Erik Reinertsen, Shamim Nemati, Gari D. Clifford

This work represents the first time change point detection algorithms have been compared in a meaningful way and utilized in a classification task, which demonstrates the effect of changepoint algorithm choice on application performance.

Point-of-Care Real-Time Signal Quality for Fetal Doppler Ultrasound Using a Deep Learning Approach

no code implementations15 Nov 2023 Mohsen Motie-Shirazi, Reza Sameni, Peter Rohloff, Nasim Katebi, Gari D. Clifford

In order to provide instant feedback to allow correction of the data at source, a signal quality metric is required that can run in real-time on the mobile phone.

A Survey on Blood Pressure Measurement Technologies: Addressing Potential Sources of Bias

no code implementations14 Jun 2023 Seyedeh Somayyeh Mousavi, Matthew A. Reyna, Gari D. Clifford, Reza Sameni

Regular blood pressure (BP) monitoring in clinical and ambulatory settings plays a crucial role in the prevention, diagnosis, treatment, and management of cardiovascular diseases.

Bayesian Inference Management

A Feasibility Study on Indoor Localization and Multi-person Tracking Using Sparsely Distributed Camera Network with Edge Computing

1 code implementation8 May 2023 Hyeokhyen Kwon, Chaitra Hegde, Yashar Kiarashi, Venkata Siva Krishna Madala, Ratan Singh, ArjunSinh Nakum, Robert Tweedy, Leandro Miletto Tonetto, Craig M. Zimring, Matthew Doiron, Amy D. Rodriguez, Allan I. Levey, Gari D. Clifford

To this end, we deployed an end-to-end edge computing pipeline that utilizes multiple cameras to achieve localization, body orientation estimation and tracking of multiple individuals within a large therapeutic space spanning $1700m^2$, all while maintaining a strong focus on preserving privacy.

Edge-computing Human Detection +4

A Data-Driven Gaussian Process Filter for Electrocardiogram Denoising

no code implementations6 Jan 2023 Mircea Dumitru, Qiao Li, Erick Andres Perez Alday, Ali Bahrami Rad, Gari D. Clifford, Reza Sameni

Objective: Gaussian Processes (GP)-based filters, which have been effectively used for various applications including electrocardiogram (ECG) filtering can be computationally demanding and the choice of their hyperparameters is typically ad hoc.

Denoising Gaussian Processes

Mythological Medical Machine Learning: Boosting the Performance of a Deep Learning Medical Data Classifier Using Realistic Physiological Models

no code implementations28 Dec 2021 Ismail Sadiq, Erick A. Perez-Alday, Amit J. Shah, Ali Bahrami Rad, Reza Sameni, Gari D. Clifford

Objective: To determine if a realistic, but computationally efficient model of the electrocardiogram can be used to pre-train a deep neural network (DNN) with a wide range of morphologies and abnormalities specific to a given condition - T-wave Alternans (TWA) as a result of Post-Traumatic Stress Disorder, or PTSD - and significantly boost performance on a small database of rare individuals.

Transfer Learning

Privacy-Preserving Eye-tracking Using Deep Learning

no code implementations17 Jun 2021 Salman Seyedi, Zifan Jiang, Allan Levey, Gari D. Clifford

The expanding usage of complex machine learning methods like deep learning has led to an explosion in human activity recognition, particularly applied to health.

Human Activity Recognition Inference Attack +2

Deep Sequence Learning for Accurate Gestational Age Estimation from a $\$$25 Doppler Device

no code implementations24 Nov 2020 Nasim Katebi, Reza Sameni, Gari D. Clifford

Assessing fetal development is usually carried out by techniques such as ultrasound imaging, which is generally unavailable in rural areas due to the high cost, maintenance, skills and training needed to operate the devices effectively.

Age Estimation Time Series +1

Temporal-Framing Adaptive Network for Heart Sound Segmentation without Prior Knowledge of State Duration

no code implementations9 May 2020 Xingyao Wang, Chengyu Liu, Yuwen Li, Xianghong Cheng, Jianqing Li, Gari D. Clifford

Moreover, the TFAN-based method achieved an overall F1 score of 99. 2%, 94. 4%, 91. 4% on LEVEL-I, -II and -III data respectively, compared to 98. 4%, 88. 54% and 79. 80% for the current state-of-the-art method.

Segmentation Time Series Analysis

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