Optimization of Physical Activity Recognition for Real-Time Wearable Systems: Effect of Window Length, Sampling Frequency and Number of Features
Allik, Ardo, Pilt, Kristjan, Karai, Deniss, Fridolin, Ivo, Leier, Mairo, Jervan, Gert
Published in Applied sciences (12.11.2019)
Published in Applied sciences (12.11.2019)
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Journal Article
Influence of gender on the QT interval variability and duration in different wake–sleep stages in non-sleep apneic individuals: Analysis of polysomnographic recordings
Viigimae, Moonika, Karai, Deniss, Pilt, Kristjan, Polo, Olli, Juhtala, Heini, Meigas, Kalju, Kaik, Jyri
Published in Journal of electrocardiology (01.07.2017)
Published in Journal of electrocardiology (01.07.2017)
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Journal Article
Higuchi’s fractal dimension for analysis of the effect of external periodic stressor on electrical oscillations in the brain
Hinrikus, Hiie, Bachmann, Maie, Karai, Deniss, Klonowski, Włodzimierz, Lass, Jaanus, Stepien, Pavel, Stepien, Robert, Tuulik, Viiu
Published in Medical & biological engineering & computing (01.05.2011)
Published in Medical & biological engineering & computing (01.05.2011)
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Journal Article
Application of novel QT interval correction and QT/RR assessment models to ECG 24-hour recordings in cardiac patients
Veski, K, Karai, D, Pilt, K, Meigas, K, Kaik, J
Published in Estonian journal of engineering (01.03.2010)
Published in Estonian journal of engineering (01.03.2010)
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Journal Article
QT interval variability index and QT interval duration during different sleep stages in patients with obstructive sleep apnea
Viigimae, Moonika, Karai, Deniss, Pilt, Kristjan, Pirn, Peeter, Huhtala, Heini, Polo, Olli, Meigas, Kalju, Kaik, Jyri
Published in Sleep medicine (01.09.2017)
Published in Sleep medicine (01.09.2017)
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Journal Article
Effect of microwave radiation on human EEG at two different levels of exposure
Suhhova, Anna, Bachmann, Maie, Karai, Deniss, Lass, Jaanus, Hinrikus, Hiie
Published in Bioelectromagnetics (01.05.2013)
Published in Bioelectromagnetics (01.05.2013)
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Journal Article
Effect of low frequency modulated microwave exposure on human EEG: Individual sensitivity
Hinrikus, Hiie, Bachmann, Maie, Lass, Jaanus, Karai, Deniss, Tuulik, Viiu
Published in Bioelectromagnetics (01.10.2008)
Published in Bioelectromagnetics (01.10.2008)
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Journal Article
QT Interval Variability Index and QT Interval Duration in Different Sleep Stages: Analysis of Polysomnographic Recordings in Nonapneic Male Patients
Meigas, Kalju, Pilt, Kristjan, Pirn, Peeter, Karai, Deniss, Viigimae, Moonika, Kaik, Jyri
Published in BioMed research international (01.01.2015)
Published in BioMed research international (01.01.2015)
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Journal Article
Effect of noise in processing of visual information
Hinrikus, Hiie, Karai, Deniss, Lass, Jaanus, Rodina, Anastassia
Published in Nonlinear biomedical physics (03.06.2010)
Published in Nonlinear biomedical physics (03.06.2010)
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Journal Article
Influence of mental stress on the arterial stiffness parameters detected from photoplethysmographic signal waveform
Pilt, Kristjan, Karai, Deniss, Bachmann, Maie, Gavriljuk, Marietta, Allik, Ardo, Uudeberg, Tuuli, Tarnov, Kulle, Fridolin, Ivo
Published in 2022 18th Biennial Baltic Electronics Conference (BEC) (04.10.2022)
Published in 2022 18th Biennial Baltic Electronics Conference (BEC) (04.10.2022)
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Conference Proceeding
Application of novel QT interval correction and QT/RR assessment models to ECG 24-hour recordings in cardiac patients/Uudsete QT-intervalli korrigeerimise ja QT/RR-suhte maaramise mudelite rakendamine EKG 24 tunni registreerimisel sudamehaigetel
Veski, Kristi, Karai, Deniss, Pilt, Kristjan, Meigas, Kalju, Kaik, Juri
Published in Estonian journal of engineering (01.03.2010)
Published in Estonian journal of engineering (01.03.2010)
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Journal Article
Smart photoplethysmographic sensor for pulse wave registration at different vascular depths
Leier, Mairo, Pilt, Kristjan, Karai, Deniss, Jervan, Gert
Published in 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (01.01.2015)
Published in 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (01.01.2015)
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Conference Proceeding
Journal Article
Fall detection and activity recognition system for usage in smart work-wear
Leier, Mairo, Jervan, Gert, Allik, Ardo, Pilt, Kristjan, Karai, Deniss, Fridolin, Ivo
Published in 2018 16th Biennial Baltic Electronics Conference (BEC) (01.10.2018)
Published in 2018 16th Biennial Baltic Electronics Conference (BEC) (01.10.2018)
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Conference Proceeding
Second derivative photoplethysmographic signal analysis of differences between fingers in healthy subjects
Pilt, Kristjan, Silluta, Sandra, Palmar, Merlin, Karai, Deniss, Meigas, Kalju, Viigimaa, Margus
Published in 2018 16th Biennial Baltic Electronics Conference (BEC) (01.10.2018)
Published in 2018 16th Biennial Baltic Electronics Conference (BEC) (01.10.2018)
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Conference Proceeding
Activity classification for real-time wearable systems: Effect of window length, sampling frequency and number of features on classifier performance
Allik, Ardo, Pilt, Kristjan, Karai, Deniss, Fridolin, Ivo, Leier, Mairo, Jervan, Gert
Published in 2016 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) (01.12.2016)
Published in 2016 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) (01.12.2016)
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Conference Proceeding
An experimental measurement complex for probable estimation of arterial stiffness
Pilt, Kristjan, Meigas, Kalju, Viigimaa, Margus, Temitski, Kristina, Kaik, Jüri, Karai, Deniss
Published in 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology (01.01.2010)
Published in 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology (01.01.2010)
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Conference Proceeding
Journal Article