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https://open.uns.ac.rs/handle/123456789/8891
Назив: | Detecting and removing outlier(s) in electromyographic gait-related patterns | Аутори: | Miler Jerković, Vera Bojanić, Dubravka Jorgovanović, Nikola Ilić, Vojin Petrovacki-Balj, Bojana |
Датум издавања: | 1-јун-2013 | Часопис: | Journal of Applied Statistics | Сажетак: | In this paper, we propose a method for outlier detection and removal in electromyographic gait-related patterns (EMG-GRPs). The goal was to detect and remove EMG-GRPs that reduce the quality of gait data while preserving natural biological variations in EMG-GRPs. The proposed procedure consists of general statistical tests and is simple to use. The Friedman test with multiple comparisons was used to find particular EMG-GRPs that are extremely different from others. Next, outlying observations were calculated for each suspected stride waveform by applying the generalized extreme studentized deviate test. To complete the analysis, we applied different outlier criteria. The results suggest that an EMG-GRP is an outlier if it differs from at least 50% of the other stride waveforms and contains at least 20% of the outlying observations. The EMG signal remains a realistic representation of muscle activity and demonstrates step-by-step variability once the outliers, as defined here, are removed. © 2013 Copyright Taylor and Francis Group, LLC. | URI: | https://open.uns.ac.rs/handle/123456789/8891 | ISSN: | 02664763 | DOI: | 10.1080/02664763.2013.785495 |
Налази се у колекцијама: | FTN Publikacije/Publications |
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