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Computational Challenges of High-Density Biosensor Data Analysis

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Intelligent Sensors".

Deadline for manuscript submissions: 10 May 2024 | Viewed by 1702

Special Issue Editors


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Guest Editor
Department of Electrical Engineering and Information Systems, University of Pannonia, 8200 Veszprém, Hungary
Interests: high-density EEG signal processing; brain connectivity analysis; parallel and GPU computing; algorithms and performance optimization

E-Mail Website
Guest Editor
Department of Electrical Engineering and Information Systems, University of Pannonia, 8200 Veszprém, Hungary
Interests: medical and health data analysis; modelling, signal processing; medical information systems

Special Issue Information

Dear Colleagues,

The proliferation of high-density biosensor (EEG, MEG, EMG, ECoG, fNIRS) measurement systems present growing problems in data analysis due to the increases in measurement dataset size, subject/patient population, sampling frequency, etc. Routine analysis is typically performed by scripting environments and algorithms designed for single-core computing systems that cannot fully utilize the capabilities of modern computing systems. The aim of this Special Issue is to explore how the fundamental changes in computer architecture (multi-core revolution, GPU and FPGA accelerators, cloud computing, supercomputers) affect multi-sensor biosignal data processing and what changes are required to fully benefit from these advanced computing environments. This Issue welcomes original research articles and review papers that demonstrate the efficient use of these new technologies in the form of new data processing techniques and analysis algorithms, highly parallel implementations, and novel data analysis system architecture designs that demonstrate efficient use of multi-core, GPU, cloud, and other HPC systems. Case studies of very large dataset analysis studies, implementations using accelerators and/or HPC systems, the performance analysis of advanced signal processing methods, and reports on clinical application experiments are especially welcome.

Dr. Zoltan Juhasz
Dr. Istvan Vassanyi
Guest Editors

Manuscript Submission Information

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Keywords

  • EE
  • MEG
  • EMG
  • fNIRS
  • high-density biosensors
  • data processing
  • multi-core architecture
  • GPU
  • accelerator
  • cloud computing
  • big data analysis
  • HPC

Published Papers (1 paper)

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Research

19 pages, 5585 KiB  
Article
GPU Implementation of the Improved CEEMDAN Algorithm for Fast and Efficient EEG Time–Frequency Analysis
by Zeyu Wang and Zoltan Juhasz
Sensors 2023, 23(20), 8654; https://doi.org/10.3390/s23208654 - 23 Oct 2023
Viewed by 1275
Abstract
Time–frequency analysis of EEG data is a key step in exploring the internal activities of the human brain. Studying oscillations is an important part of the analysis, as they are thought to provide the underlying mechanism for communication between neural assemblies. Traditional methods [...] Read more.
Time–frequency analysis of EEG data is a key step in exploring the internal activities of the human brain. Studying oscillations is an important part of the analysis, as they are thought to provide the underlying mechanism for communication between neural assemblies. Traditional methods of analysis, such as Short-Time FFT and Wavelet Transforms, are not ideal for this task due to the time–frequency uncertainty principle and their reliance on predefined basis functions. Empirical Mode Decomposition and its variants are more suited to this task as they are able to extract the instantaneous frequency and phase information but are too time consuming for practical use. Our aim was to design and develop a massively parallel and performance-optimized GPU implementation of the Improved Complete Ensemble EMD with the Adaptive Noise (CEEMDAN) algorithm that significantly reduces the computational time (from hours to seconds) of such analysis. The resulting GPU program, which is publicly available, was validated against a MATLAB reference implementation and reached over a 260× speedup for actual EEG measurement data, and provided predicted speedups in the range of 3000–8300× for longer measurements when sufficient memory was available. The significance of our research is that this implementation can enable researchers to perform EMD-based EEG analysis routinely, even for high-density EEG measurements. The program is suitable for execution on desktop, cloud, and supercomputer systems and can be the starting point for future large-scale multi-GPU implementations. Full article
(This article belongs to the Special Issue Computational Challenges of High-Density Biosensor Data Analysis)
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