Publications & Patents

Journal Publications:

1. [In Review] Yi Zhu, Abhishek Tiwari, Jo ̃ao Monteiro, Shruti Kshirsagar, and Tiago H. Falk, “COVID-19 Detection via Fusion of Modulation Spectrum and Linear Prediction Speech Features.” IEEE Transactions on Audio, Speech and Language Processing

2. Abhishek Tiwari, Raymundo Cassani, Shruti Kshirsagar, Diana P. Tobon, Yi Zhu, and Tiago H. Falk. “Modulation Spectral Signal Representation for Quality Measurement and Enhancement of Wearable Device Data: A Technical Note” Sensors, 22(12), 4579.

3. Abhishek Tiwari and Tiago H Falk. “New Measures of Heart Rate Variability based on Subband Tachogram Complexity and Spectral Characteristics for Improved Stress and Anxiety Monitoring in Highly Ecological Settings.” Frontiers in Signal Processing: 7.

4. Lucas R. Trambaiolli, Abhishek Tiwari, and Tiago H. Falk. “Affective neurofeedback under naturalistic conditions: a mini-review of current achievements and open challenges.” Frontiers in Neuroergonomics 2 (2021): 15.

5. Mark Parent, Isabela Albuquerque, Abhishek Tiwari, Raymundo Cassani, Jean-Fran ̧cois Gagnon, Daniel Lafond, Sebastien Tremblay, and Tiago H. Falk. ”PASS: A Multimodal Database of Physical Activity and Stress for Mobile Passive Body/Brain-Computer Interface Research.“ Frontiers in Neuroscience 14 (2020): 1274.

6. Albuquerque, Isabela, Abhishek Tiwari, Mark Parent, Jean-Fran ̧cois Gagnon, Daniel Lafond, Sebastien Tremblay, and Tiago H Falk. “WAUC: A Multi-Modal Database for Mental Workload Assessment under Physical Activity.” Frontiers in Neuroscience 14 (2020): 1037

7. Abhishek Tiwari, Isabela Albuquerque, Mark Parent, Jean-Fran ̧cois Gagnon, Daniel Lafond, Sebastien Tremblay, and Tiago H Falk. “Multi-Scale Heart Beat Entropy Measures for Mental Workload Assessment of Ambulant Users.”, Entropy 21, no. 8 (2019): 783

8. Abhishek Tiwari and Tiago H Falk. “Fusion of motif- and spectrum-related features for improved EEG-based emotion recognition.”, Computational intelligence and neuroscience (2019).

9. Abhishek Tiwari and Tiago H Falk. “Lossless electrocardiogram signal compression: A review of existing methods.”, Biomedical Signal Processing and Control 51 (2019): 338-346.

10. Andrea Clerico, Abhishek Tiwari, Rishabh Gupta, Srinivasan Jayaraman, and Tiago H. Falk. “Electroencephalography amplitude modulation analysis for automated affective tagging of music video clips.”, Frontiers in Computational Neuroscience 11 (2018): 115.

Conference Publications:

1. [SUBMITTED] Abhishek Tiwari, Behnaz Poursartop, Amin Mahnam and Tiago H. Falk. "Improved Affect Prediction Using Complexity Based Ultra-Short-Term Heart Rate Variability Featurese" . In 2023 International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE, 2023.

2. Abhishek Tiwari, Salaar Liaqat, Daniyal Liaqat, Moshe Gabel, Eyal de Lara and Tiago H. Falk. “Remote COPD Severity and Exacerbation Evaluation Using Heart Rate and Activity Information Measured from a Wearable Device” 43nd Annual International Conference of the IEEE Engineering in Medicine Biology Society (EMBC), IEEE, 2021. [video]

3. [Best Paper Award, Finalist] Arthur Pimentel, Abhishek Tiwari, Shrikanth Narayanan, and Tiago H. Falk. “Human Mental State Monitoring in the Wild: Are We Better Off with Deeper Neural Networks or Improved Input Features?” Canadian Medical and Biological Engineering Society (CMBES) Proceedings 44 (2021). [video]

4. Amr Gaballah, Abhishek Tiwari, Shrikanth Narayanan, and Tiago H. Falk. “Context-Aware Speech Stress Detection in Hospital Workers Using Bi-LSTM Classifiers” In 2021 International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE, 2021. [video]

5. Abhishek Tiwari, Raymundo Cassani, Jean-Fran ̧cois Gagnon, Daniel Lafond, S ́ebastien Tremblay, and Tiago H. Falk. “Movement Artifact-Robust Mental Workload Assessment During Physical Activity Using Multi-Sensor Fusion.” In 2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC), pp. 3471-3477. IEEE, 2020. [video]

6. Raymundo Cassani, Abhishek Tiwari, Ilona Posner, Bruno Afonso, and Tiago H. Falk. “Initial Investigation into Neurophysiological Correlates of Argentine Tango Flow States: a Case Study.” In 2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC), pp. 3478-3483. IEEE, 2020. [video]

7. Abhishek Tiwari, Raymundo Cassani, Jean-Francois Gagnon, Daniel Lafond, Sebastien Tremblay, and Tiago H. Falk. “Prediction of Stress and Mental Workload during Police Academy Training Using Ultra-Short-Term Heart Rate Variability and Breathing Analysis,” 42nd Annual International Conference of the IEEE Engineering in Medicine Biology Society (EMBC), pp. 4530-4533. IEEE, 2020. [video]

8. Raymundo Cassani, Abhishek Tiwari, and Tiago H. Falk. “Optimal filter characterization for photoplethysmography-based pulse rate and pulse power spectrum estimation.” 42nd Annual International Conference of the IEEE Engineering in Medicine Society (EMBC). IEEE, 2020. Biology [video]

9. Abhishek Tiwari, Isabela Albuquerque, Jean-Fran ̧cois Gagnon, Daniel Lafond, Mark Parent, Sebastien Tremblay and Tiago H. Falk, “Mental Workload Assessment During Physical Activity Using Non-linear Movement Artefact Robust Electroencephalography Features”, 2019 IEEE International Conference on Systems, Man, and Cybernatics (SMC)

10. Mark Parent, Abhishek Tiwari, Isabela Albuquerque, Jean-Fran ̧cois Gagnon, Daniel Lafond, Sebastien Tremblay, and Tiago H. Falk. “A Multimodal Approach to Improve the Robustness of Physiological Stress Prediction During Physical Activity.” In 2019 IEEE International Conference on Systems, Man and Cybernetics (SMC), pp. 4131-4136. IEEE, 2019.

11. Isabela Albuquerque, Joao Monteiro, Olivier Rosanne, Abhishek Tiwari, Jean-Fran ̧cois Gagnon, and Tiago H. Falk. “Cross-Subject Statistical Shift Estimation for Generalized Electroencephalography-based Mental Workload Assessment”. In 2019 IEEE International Conference on Systems, Man and Cybernetics (SMC), pp. 3647-3653. IEEE, 2019.

12. Abhishek Tiwari, Jennifer L. Villatte, Shrikanth Narayanan, and Tiago H. Falk. “Prediction of Psychological Flexibility with multi-scale Heart Rate Variability and Breathing Features in an “in-the-wild” Setting.” In 2019 8th International Conference on Affective Computing and Intelligent Interaction Workshops and Demos (ACIIW), pp. 297-303. IEEE, 2019

13. Abhishek Tiwari, Shrikanth Narayanan and Tiago H. Falk, “ Breathing Rate Complexity Features for “In-the-Wild” Stress and Anxiety Measurement”, 27th European Signal Processing Conference, EUSIPCO 2019

14. Anderson Avila R., Shruti R. Kshirsagar, Abhishek Tiwari, Daniel Lafond, Douglas O’Shaughnessy, and Tiago H. Falk. “Speech-based Stress Classification Based on Modulation Spectral Features and Convolutional Neural Networks.” In 2019 27th European Signal Processing Conference (EUSIPCO), pp. 1-5. IEEE, 2019

15. Abhishek Tiwari, Shrikanth Narayanan and Tiago H. Falk, “Stress and Anxiety Measurement “In-the-Wild” Using Quality-aware Multi-scale HRV Features”, 41st International Engineering in Medicine and Biology Conference, EMBC 2019

16. Abhishek Tiwari, Raymundo Cassani, Shrikanth Narayanan and Tiago H. Falk, “A Comparative Study of Stress and Anxiety Estimation in Ecological Settings Using a Smart-shirt and a Smart-bracelet”, 41st International Engineering in Medicine and Biology Conference, EMBC 2019

17. [Best Paper Award, 3rd Place] Abhishek Tiwari, Isabela Albuquerque, Mark Parent, Jean-Francois Gagnon, Daniel Lafond, Sebastien Tremblay, and Tiago H Falk. “A Comparison of Two ECG Inter-beat Interval Measurement Methods for HRV-Based Mental Workload Prediction of Ambulant Users.”, Canadian Medical and Biological Engineering Society (CMBES) Proceedings 42 (2019)

18. Isabela Albuquerque, Abhishek Tiwari, Jean-Franois Gagnon, Daniel Lafond, Mark Parent, Sebastien Tremblay, Tiago Falk. “ On the analysis of EEG features for mental workload assessment during physical activity”, 2018 IEEE International Conference on Systems, Man, and Cybernatics (SMC)

19. Anwesha Sengupta, Abhishek Tiwari and Aurabinda Routray, “Analysis of Cognitive Fatigue using EEG Parameters”, 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2017

20. Anwesha Sengupta, Abhishek Tiwari, Aritra Chaudhuri and Aurobinda Routray, “Analysis of Loss of Alertness due to Cognitive Fatigue using Motif Synchronization of EEG Records”, 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2016, pp. 1652-1655

Patents:

1. [In Preparation] Principal Component Analysis Based Metric For PPG Signal Quality Assessment During Movement (PCA-SQI). Abhishek Tiwari

2. [In Preparation] Modulation Spectrogram Shape Based Metric For PPG Signal Quality Assessment During Physical Activity (Mod-SQI). Abhishek Tiwari

Abstracts:

1. Jonathan Afilalo, Ding Yi Zhang, Abhishek Tiwari, and Philip Warrick,. "Deep Learning Pipeline For Frailty Screening Using The 12-lead Electrocardiogram'", American Health Association (AHA) Special Sessions, 2022.