Inequality indexes as sparsity measures applied to ventricular ectopic beats detection and its efficient hardware implementation.
Journal article
Baali, Hamza, Zhai, Xiaojun, Djelouat, Hamza, Amira, Abbes and Bensaali, Faycal 2017. Inequality indexes as sparsity measures applied to ventricular ectopic beats detection and its efficient hardware implementation. IEEE Access. https://doi.org/10.1109/ACCESS.2017.2780190
| Authors | Baali, Hamza, Zhai, Xiaojun, Djelouat, Hamza, Amira, Abbes and Bensaali, Faycal |
|---|---|
| Abstract | Meeting application requirements under a tight power budget is of a primary importance to enable connected health internet of things (IoT) applications. This paper considers using sparse representation and well-defined inequality indexes drawn from the theory of inequality to distinguish ventricular ectopic beats (VEBs) from non-VEBs. Our approach involves designing a separate dictionary for each arrhythmia class using a set of labelled training QRS complexes. Sparse representation, based on the designed dictionaries of each new test QRS complex is then calculated. Following this, its class is predicted using the winner-takes-all principle by selecting the class with the highest inequality index. Our experiments showed promising results ranging between 80% and 100% for the detection of VEBs considering the patient-specific approach, 80% using cross-validation and 70% on unseen data using independent sets for training and testing respectively. An efficient hardware implementation of the alternating direction method of multipliers (ADMM) algorithm is also presented. The results show that the proposed hardware implementation can classify a QRS complex in 69.3 ms that use only 0.934 W energy. |
| Keywords | Inequality indexes; Dictionary learning; Internet of Things; Arrhythmia |
| Year | 2017 |
| Journal | IEEE Access |
| Publisher | IEEE |
| ISSN | 21693536 |
| Digital Object Identifier (DOI) | https://doi.org/10.1109/ACCESS.2017.2780190 |
| Web address (URL) | http://hdl.handle.net/10545/622053 |
| hdl:10545/622053 | |
| Publication dates | 27 Dec 2017 |
| Publication process dates | |
| Deposited | 12 Jan 2018, 15:37 |
| Rights | Archived with thanks to IEEE Access |
| Contributors | Qatar University and University of Derby |
| File | File Access Level Open |
| File | File Access Level Open |
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