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@inproceedings{1649161, author = {Mucha, J. and Zvoncak, V. and Galáž, Zoltán and FaundezandZanuy, M. and Mekyska, J. and Kiska, T. and Smekal, Z. and Brabenec, Luboš and Rektorová, Irena and LopezanddeandIpina, K.}, address = {NEW YORK}, booktitle = {2018 41ST INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS AND SIGNAL PROCESSING (TSP)}, doi = {http://dx.doi.org/10.1109/TSP.2018.8441293}, keywords = {Archimedean spiral; binary classification; fractal calculus; fractional derivative; online handwriting; Parkinson's disease}, howpublished = {elektronická verze "online"}, language = {eng}, location = {NEW YORK}, isbn = {978-1-5386-4695-3}, pages = {214-217}, publisher = {IEEE}, title = {Fractional Derivatives of Online Handwriting: a New Approach of Parkinsonic Dysgraphia Analysis}, year = {2018} }
TY - JOUR ID - 1649161 AU - Mucha, J. - Zvoncak, V. - Galáž, Zoltán - Faundez-Zanuy, M. - Mekyska, J. - Kiska, T. - Smekal, Z. - Brabenec, Luboš - Rektorová, Irena - Lopez-de-Ipina, K. PY - 2018 TI - Fractional Derivatives of Online Handwriting: a New Approach of Parkinsonic Dysgraphia Analysis PB - IEEE CY - NEW YORK SN - 9781538646953 KW - Archimedean spiral KW - binary classification KW - fractal calculus KW - fractional derivative KW - online handwriting KW - Parkinson's disease N2 - Parkinson's disease (PD) is the second most frequent neurodegenerative disorder. One typical hallmark of PD is disruption in execution of practised skills such as handwriting. This paper introduces a new methodology of kinematic features calculation based on fractional derivatives applied on PD handwriting. Discrimination power of basic kinematic features (velocity, acceleration, jerk) was evaluated by classification analysis (using support vector machines and random forests). For this purpose, 30 PD patients and 36 healthy controls were enrolled. In comparison with results reported in other works, the newly designed features based on fractional derivatives increased classification accuracy by 8% in univariate analysis and by 10% when employing the multivariate one. This study reveals an impact of fractional derivatives based features in analysis of Parkinsonic dysgraphia. ER -
MUCHA, J., V. ZVONCAK, Zoltán GALÁŽ, M. FAUNDEZ-ZANUY, J. MEKYSKA, T. KISKA, Z. SMEKAL, Luboš BRABENEC, Irena REKTOROVÁ and K. LOPEZ-DE-IPINA. Fractional Derivatives of Online Handwriting: a New Approach of Parkinsonic Dysgraphia Analysis. Online. In \textit{2018 41ST INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS AND SIGNAL PROCESSING (TSP)}. NEW YORK: IEEE, 2018, p.~214-217. ISBN~978-1-5386-4695-3. Available from: https://dx.doi.org/10.1109/TSP.2018.8441293.
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