Walter Karlen

59 papers A* 5Journal 25Unranked 28
YearRankTypeTitle / Venue / Authors
2025 J jnl
Artifact detection and localization in single-channel mobile EEG for sleep research using deep learning and attention mechanisms.
CoRR
Khrystyna Semkiv, Jia Zhang, Maria Laura Ferster, Walter Karlen
2025 J jnl
Local modulation of sleep slow waves depends on timing between auditory stimuli.
NeuroImage
Sven Leach, Sara Fattinger, Elena Krugliakova, Jelena Skorucak, Georgia Sousouri, Sophia Snipes, Selina Schühle, Maria Laura Ferster, Giulia Da Poian, Walter Karlen, Reto Huber
2023 — conf
Real-Time Detection of Sleep Arousals with a Head-Mounted Accelerometer.
EMBC
Tugce Canbaz Gumussu, Giulia Da Poian, Silvano Cortesi, Walter Karlen
2022 J jnl
Benchmarking Real-Time Algorithms for In-Phase Auditory Stimulation of Low Amplitude Slow Waves With Wearable EEG Devices During Sleep.
IEEE Trans. Biomed. Eng.
Maria Laura Ferster, Giulia Da Poian, Kiran Menachery, Simon J. Schreiner, Caroline Lustenberger, Angelina Maric, Reto Huber, Christian R. Baumann, Walter Karlen
2022 J jnl
Benchmarking real-time algorithms for in-phase auditory stimulation of low amplitude slow waves with wearable EEG devices during sleep.
CoRR
Maria Laura Ferster, Giulia Da Poian, Kiran Menachery, Simon J. Schreiner, Caroline Lustenberger, Angelina Maric, Reto Huber, Christian R. Baumann, Walter Karlen
2022 J jnl
Get rid of the beat in mobile EEG applications: A framework towards automated cardiogenic artifact detection and removal in single-channel EEG.
Biomed. Signal Process. Control.
Neng-Tai Chiu, Stephanie Huwiler, Maria Laura Ferster, Walter Karlen, Hau-Tieng Wu, Caroline Lustenberger
2021 J jnl
A Deep Learning Approach to Diagnosing Multiple Sclerosis from Smartphone Data.
IEEE J. Biomed. Health Informatics
Patrick Schwab, Walter Karlen
2021 J jnl
Detect-and-Segment: a Deep Learning Approach to Automate Wound Image Segmentation.
CoRR
Gaetano Scebba, Jia Zhang, Sabrina Catanzaro, Carina Mihai, Oliver Distler, Martin Berli, Walter Karlen
2021 J jnl
Multispectral Video Fusion for Non-Contact Monitoring of Respiratory Rate and Apnea.
IEEE Trans. Biomed. Eng.
Gaetano Scebba, Giulia Da Poian, Walter Karlen
2020 J jnl
A Deep Learning Approach to Diagnosing Multiple Sclerosis from Smartphone Data.
CoRR
Patrick Schwab, Walter Karlen
2020 — conf
Covariance intersection to improve the robustness of the photoplethysmogram derived respiratory rate.
EMBC
Jia Zhang, Gaetano Scebba, Walter Karlen
2020 A* conf
Learning Counterfactual Representations for Estimating Individual Dose-Response Curves.
AAAI
Patrick Schwab, Lorenz Linhardt, Stefan Bauer, Joachim M. Buhmann, Walter Karlen
2020 J jnl
Multispectral Video Fusion for Non-contact Monitoring of Respiratory Rate and Apnea.
CoRR
Gaetano Scebba, Giulia Da Poian, Walter Karlen
2020 J jnl
Pulse transit time based respiratory rate estimation with singular spectrum analysis.
Medical Biol. Eng. Comput.
Xiao-Rong Ding, Bryan P. Yan, Walter Karlen, Yuan-Ting Zhang, Hon Ki Tsang
2020 J jnl
Remote health monitoring in the time of COVID-19.
CoRR
Joachim A. Behar, Chengyu Liu, Kenta Tsutsui, Valentina D. A. Corino, Janmajay Singh, Marco A. F. Pimentel, Walter Karlen, Philip Warrick, Sebastian Zaunseder, Fernando Andreotti, Maxim Osipov, Patrick E. McSharry, Kevin Kotzen, Chandan K. Karmakar, Gari D. Clifford
2020 — conf
Wearable bioimpedance for continuous and context-aware clinical monitoring.
EMBC
Abhilash Guru Dutt, Michaela Verling, Walter Karlen
2019 A* conf
CXPlain: Causal Explanations for Model Interpretation under Uncertainty.
NeurIPS
Patrick Schwab, Walter Karlen
2019 J jnl
CXPlain: Causal Explanations for Model Interpretation under Uncertainty.
CoRR
Patrick Schwab, Walter Karlen
2019 J jnl
Forecasting intracranial hypertension using multi-scale waveform metrics.
CoRR
Matthias Hüser, Adrian Kündig, Walter Karlen, Valeria De Luca, Martin Jaggi
2019 A* conf
Granger-Causal Attentive Mixtures of Experts: Learning Important Features with Neural Networks.
AAAI
Patrick Schwab, Djordje Miladinovic, Walter Karlen
2019 J jnl
Learning Counterfactual Representations for Estimating Individual Dose-Response Curves.
CoRR
Patrick Schwab, Lorenz Linhardt, Stefan Bauer, Joachim M. Buhmann, Walter Karlen
2019 A* conf
PhoneMD: Learning to Diagnose Parkinson's Disease from Smartphone Data.
AAAI
Patrick Schwab, Walter Karlen
2018 J jnl
Automation in medicine: from homecare to clinical applications.
Autom.
Walter Karlen, Thomas Schauer, Knut Möller, Olaf Simanski
2018 J jnl
Granger-causal Attentive Mixtures of Experts.
CoRR
Patrick Schwab, Walter Karlen
2018 A* conf
Not to Cry Wolf: Distantly Supervised Multitask Learning in Critical Care.
ICML
Patrick Schwab, Emanuela Keller, Carl Muroi, David J. Mack, Christian Strässle, Walter Karlen
2018 J jnl
Not to Cry Wolf: Distantly Supervised Multitask Learning in Critical Care.
CoRR
Patrick Schwab, Emanuela Keller, Carl Muroi, David J. Mack, Christian Strässle, Walter Karlen
2018 J jnl
Perfect Match: A Simple Method for Learning Representations For Counterfactual Inference With Neural Networks.
CoRR
Patrick Schwab, Lorenz Linhardt, Walter Karlen
2018 J jnl
PhoneMD: Learning to Diagnose Parkinson's Disease from Smartphone Data.
CoRR
Patrick Schwab, Walter Karlen
2017 — conf
Beat by Beat: Classifying Cardiac Arrhythmias with Recurrent Neural Networks.
CinC
Patrick Schwab, Gaetano Claudio Scebba, Jia Zhang, Marco Delai, Walter Karlen
2017 J jnl
Beat by Beat: Classifying Cardiac Arrhythmias with Recurrent Neural Networks.
CoRR
Patrick Schwab, Gaetano Scebba, Jia Zhang, Marco Delai, Walter Karlen
2017 — conf
Improving ROI detection in photoplethysmographic imaging with thermal cameras.
EMBC
Gaetano Scebba, Jelena Dragas, Suyi Hu, Walter Karlen
2016 — conf
A pulse transit time based fusion method for the noninvasive and continuous monitoring of respiratory rate.
EMBC
Xiao-Rong Ding, Yuan-Ting Zhang, Hon Ki Tsang, Walter Karlen
2015 J jnl
Estimation of Respiratory Rate From Photoplethysmographic Imaging Videos Compared to Pulse Oximetry.
IEEE J. Biomed. Health Informatics
Walter Karlen, Ainara Garde, Dorothy Myers, Cornie Scheffer, John Mark Ansermino, Guy Albert Dumont
2014 — conf
Design of an interactive medical guideline application for community health workers.
EMBC
Walter Karlen, Cornie Scheffer
2014 — conf
Oxygen saturation resolution influences regularity measurements.
EMBC
Ainara Garde, Walter Karlen, Parastoo Dehkordi, John Mark Ansermino, Guy Albert Dumont
2014 — conf
Respiratory rate assessment from photoplethysmographic imaging.
EMBC
Walter Karlen, Ainara Garde, Dorothy Myers, Cornie Scheffer, John Mark Ansermino, Guy Albert Dumont
2014 — conf
Sharing Vital Signs between mobile phone applications.
EMBC
Walter Karlen, Guy Albert Dumont, Cornie Scheffer
2014 — conf
Sleep Stage Classification in Children using Photoplethysmogram Pulse Rate Variability.
CinC
Parastoo Dehkordi, Ainara Garde, Walter Karlen, David Wensley, John Mark Ansermino, Guy Albert Dumont
2013 — conf
Detection of the optimal region of interest for camera oximetry.
EMBC
Walter Karlen, John Mark Ansermino, Guy Albert Dumont, Cornie Scheffer
2013 — conf
Empirical Mode Decomposition for Respiratory and Heart Rate Estimation from the Photoplethysmogram.
CinC
Ainara Garde, Walter Karlen, Parastoo Dehkordi, John Mark Ansermino, Guy Albert Dumont
2013 J jnl
Multiparameter Respiratory Rate Estimation From the Photoplethysmogram.
IEEE Trans. Biomed. Eng.
Walter Karlen, Srinivas Raman, John Mark Ansermino, Guy Albert Dumont
2013 — conf
Oxygen saturation in children with and without obstructive sleep apnea using the phone-oximeter.
EMBC
Ainara Garde, Walter Karlen, Parastoo Dehkordi, David Wensley, John Mark Ansermino, Guy Albert Dumont
2013 — conf
Pulse Rate Variability in Children with Disordered Breathing during Different Sleep Stages.
CinC
Parastoo Dehkordi, Ainara Garde, Walter Karlen, David Wensley, John Mark Ansermino, Guy Albert Dumont
2013 — conf
Pulse rate variability compared with heart rate variability in children with and without sleep disordered breathing.
EMBC
Parastoo Dehkordi, Ainara Garde, Walter Karlen, David Wensley, John Mark Ansermino, Guy Albert Dumont
2013 — conf
Recognition of correct finger placement for photoplethysmographic imaging.
EMBC
Walter Karlen, Joanne Lim, John Mark Ansermino, Guy Albert Dumont, Cornie Scheffer
2012 — conf
Adaptive pulse segmentation and artifact detection in photoplethysmography for mobile applications.
EMBC
Walter Karlen, John Mark Ansermino, Guy Albert Dumont
2012 — conf
Design challenges for camera oximetry on a mobile phone.
EMBC
Walter Karlen, Joanne Lim, John Mark Ansermino, Guy Albert Dumont, Cornie Scheffer
2012 — conf
Real-time cardiorespiratory coherence detects antinociception during general anesthesia.
EMBC
Chris J. Brouse, Walter Karlen, Guy Albert Dumont, Dorothy Myers, Erin Cooke, Jonathan Stinson, Joanne Lim, John Mark Ansermino
2011 J jnl
Adaptive Sleep-Wake Discrimination for Wearable Devices.
IEEE Trans. Biomed. Eng.
Walter Karlen, Dario Floreano
2011 — conf
An Adaptive Single Frequency Phase Vocoder for Low-power Heart Rate Detection - Development of a Fast and Low-power Heart Rate Estimation Algorithm for Mobile Phone Applications.
BIODEVICES
Walter Karlen, Guy Albert Dumont, Chris Petersen, Jennifer Gow, John Mark Ansermino
2011 — conf
Automated Validation of Capillary Refill Time Measurements Using Photo-Plethysmogram from a Portable Device for Effective Triage in Children.
GHTC
Walter Karlen, Amelia Pickard, Jeremy P. Daniels, Arthur Kwizera, Charles Ibingira, Guy Albert Dumont, John Mark Ansermino
2011 — conf
Human-centered Phone Oximeter Interface Design for the Operating Room - Pulse Oximeter Interfaced to a Mobile Device for Anesthesia Monitoring in the Developing World.
HEALTHINF
Walter Karlen, Guy Albert Dumont, Chris Petersen, Jennifer Gow, Joanne Lim, Jules Sleiman, John Mark Ansermino
2011 — conf
Photoplethysmogram Processing Using an Adaptive Single Frequency Phase Vocoder Algorithm.
BIOSTEC (Selected Papers)
Walter Karlen, Chris Petersen, Jennifer Gow, John Mark Ansermino, Guy Albert Dumont
2011 — conf
Respiratory rate estimation using respiratory sinus arrhythmia from photoplethysmography.
EMBC
Walter Karlen, Christopher J. Brouse, Erin Cooke, John Mark Ansermino, Guy Albert Dumont
2011 — conf
Sleepic - Developments for a Wearable On-line Sleep and Wake Discrimination System.
BIOSIGNALS
Walter Karlen, Dario Floreano
2011 — conf
Wavelet transform cardiorespiratory coherence detects patient movement during general anesthesia.
EMBC
Christopher J. Brouse, Walter Karlen, Dorothy Myers, Erin Cooke, Jonathan Stinson, Joanne Lim, Guy Albert Dumont, John Mark Ansermino
2009 — —
Adaptive wake and sleep detection for wearable systems.
Walter Karlen
2009 J jnl
Sleep and Wake Classification With ECG and Respiratory Effort Signals.
IEEE Trans. Biomed. Circuits Syst.
Walter Karlen, Claudio Mattiussi, Dario Floreano
2005 — conf
Perception and behavior of InsBot : Robot-Animal interaction issues.
ROBIO
Fabien Tâche, Masoud Asadpour, Gilles Caprari, Walter Karlen, Roland Siegwart