Walter Karlen

According to our database, Walter Karlen authored at least 49 papers between 2005 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2023

Real-Time Detection of Sleep Arousals with a Head-Mounted Accelerometer.

Tugce Canbaz Gumussu, Giulia Da Poian, Silvano Cortesi, Walter Karlen

Proceedings of the 45th Annual International Conference of the IEEE Engineering in Medicine & Biology Society, 2023

2022

Benchmarking Real-Time Algorithms for In-Phase Auditory Stimulation of Low Amplitude Slow Waves With Wearable EEG Devices During Sleep.

Maria Laura Ferster, Giulia Da Poian, Kiran Menachery, Simon J. Schreiner, Caroline Lustenberger, Angelina Maric, Reto Huber, Christian R. Baumann, Walter Karlen

IEEE Trans. Biomed. Eng., 2022

Get rid of the beat in mobile EEG applications: A framework towards automated cardiogenic artifact detection and removal in single-channel EEG.

Neng-Tai Chiu, Stephanie Huwiler, Maria Laura Ferster, Walter Karlen, Hau-Tieng Wu, Caroline Lustenberger

Biomed. Signal Process. Control., 2022

2021

A Deep Learning Approach to Diagnosing Multiple Sclerosis from Smartphone Data.

Patrick Schwab, Walter Karlen

IEEE J. Biomed. Health Informatics, 2021

Multispectral Video Fusion for Non-Contact Monitoring of Respiratory Rate and Apnea.

Gaetano Scebba, Giulia Da Poian, Walter Karlen

IEEE Trans. Biomed. Eng., 2021

Detect-and-Segment: a Deep Learning Approach to Automate Wound Image Segmentation.

Gaetano Scebba, Jia Zhang, Sabrina Catanzaro, Carina Mihai, Oliver Distler, Martin Berli, Walter Karlen

CoRR, 2021

2020

Pulse transit time based respiratory rate estimation with singular spectrum analysis.

Xiao-Rong Ding, Bryan P. Yan, Walter Karlen, Yuan-Ting Zhang, Hon Ki Tsang

Medical Biol. Eng. Comput., 2020

Remote health monitoring in the time of COVID-19.

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

CoRR, 2020

Covariance intersection to improve the robustness of the photoplethysmogram derived respiratory rate.

Jia Zhang, Gaetano Scebba, Walter Karlen

Proceedings of the 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society, 2020

Wearable bioimpedance for continuous and context-aware clinical monitoring.

Abhilash Guru Dutt, Michaela Verling, Walter Karlen

Proceedings of the 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society, 2020

Learning Counterfactual Representations for Estimating Individual Dose-Response Curves.

Patrick Schwab, Lorenz Linhardt, Stefan Bauer, Joachim M. Buhmann, Walter Karlen

Proceedings of the Thirty-Fourth AAAI Conference on Artificial Intelligence, 2020

2019

Forecasting intracranial hypertension using multi-scale waveform metrics.

Matthias Hüser, Adrian Kündig, Walter Karlen, Valeria De Luca, Martin Jaggi

CoRR, 2019

CXPlain: Causal Explanations for Model Interpretation under Uncertainty.

Patrick Schwab, Walter Karlen

Proceedings of the Advances in Neural Information Processing Systems 32: Annual Conference on Neural Information Processing Systems 2019, 2019

Granger-Causal Attentive Mixtures of Experts: Learning Important Features with Neural Networks.

Patrick Schwab, Djordje Miladinovic, Walter Karlen

Proceedings of the Thirty-Third AAAI Conference on Artificial Intelligence, 2019

PhoneMD: Learning to Diagnose Parkinson's Disease from Smartphone Data.

Patrick Schwab, Walter Karlen

Proceedings of the Thirty-Third AAAI Conference on Artificial Intelligence, 2019

2018

Perfect Match: A Simple Method for Learning Representations For Counterfactual Inference With Neural Networks.

Patrick Schwab, Lorenz Linhardt, Walter Karlen

CoRR, 2018

Granger-causal Attentive Mixtures of Experts.

Patrick Schwab, Walter Karlen

CoRR, 2018

Automation in medicine: from homecare to clinical applications.

Walter Karlen, Thomas Schauer, Knut Möller, Olaf Simanski

Autom., 2018

Not to Cry Wolf: Distantly Supervised Multitask Learning in Critical Care.

Patrick Schwab, Emanuela Keller, Carl Muroi, David J. Mack, Christian Strässle, Walter Karlen

Proceedings of the 35th International Conference on Machine Learning, 2018

2017

Improving ROI detection in photoplethysmographic imaging with thermal cameras.

Gaetano Scebba, Jelena Dragas, Suyi Hu, Walter Karlen

Proceedings of the 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2017

Beat by Beat: Classifying Cardiac Arrhythmias with Recurrent Neural Networks.

Patrick Schwab, Gaetano Claudio Scebba, Jia Zhang, Marco Delai, Walter Karlen

Proceedings of the Computing in Cardiology, 2017

2016

A pulse transit time based fusion method for the noninvasive and continuous monitoring of respiratory rate.

Xiao-Rong Ding, Yuan-Ting Zhang, Hon Ki Tsang, Walter Karlen

Proceedings of the 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2016

2015

Estimation of Respiratory Rate From Photoplethysmographic Imaging Videos Compared to Pulse Oximetry.

Walter Karlen, Ainara Garde, Dorothy Myers, Cornie Scheffer, John Mark Ansermino, Guy Albert Dumont

IEEE J. Biomed. Health Informatics, 2015

2014

Design of an interactive medical guideline application for community health workers.

Walter Karlen, Cornie Scheffer

Proceedings of the 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2014

Respiratory rate assessment from photoplethysmographic imaging.

Walter Karlen, Ainara Garde, Dorothy Myers, Cornie Scheffer, John Mark Ansermino, Guy Albert Dumont

Proceedings of the 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2014

Sharing Vital Signs between mobile phone applications.

Walter Karlen, Guy Albert Dumont, Cornie Scheffer

Proceedings of the 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2014

Oxygen saturation resolution influences regularity measurements.

Ainara Garde, Walter Karlen, Parastoo Dehkordi, John Mark Ansermino, Guy Albert Dumont

Proceedings of the 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2014

Sleep Stage Classification in Children using Photoplethysmogram Pulse Rate Variability.

Parastoo Dehkordi, Ainara Garde, Walter Karlen, David Wensley, John Mark Ansermino, Guy Albert Dumont

Proceedings of the Computing in Cardiology, CinC 2014, 2014

2013

Multiparameter Respiratory Rate Estimation From the Photoplethysmogram.

Walter Karlen, Srinivas Raman, John Mark Ansermino, Guy Albert Dumont

IEEE Trans. Biomed. Eng., 2013

Recognition of correct finger placement for photoplethysmographic imaging.

Walter Karlen, Joanne Lim, John Mark Ansermino, Guy Albert Dumont, Cornie Scheffer

Proceedings of the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2013

Detection of the optimal region of interest for camera oximetry.

Walter Karlen, John Mark Ansermino, Guy Albert Dumont, Cornie Scheffer

Proceedings of the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2013

Oxygen saturation in children with and without obstructive sleep apnea using the phone-oximeter.

Ainara Garde, Walter Karlen, Parastoo Dehkordi, David Wensley, John Mark Ansermino, Guy Albert Dumont

Proceedings of the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2013

Pulse rate variability compared with heart rate variability in children with and without sleep disordered breathing.

Parastoo Dehkordi, Ainara Garde, Walter Karlen, David Wensley, John Mark Ansermino, Guy Albert Dumont

Proceedings of the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2013

Empirical Mode Decomposition for Respiratory and Heart Rate Estimation from the Photoplethysmogram.

Ainara Garde, Walter Karlen, Parastoo Dehkordi, John Mark Ansermino, Guy Albert Dumont

Proceedings of the Computing in Cardiology, 2013

Pulse Rate Variability in Children with Disordered Breathing during Different Sleep Stages.

Parastoo Dehkordi, Ainara Garde, Walter Karlen, David Wensley, John Mark Ansermino, Guy Albert Dumont

Proceedings of the Computing in Cardiology, 2013

2012

Design challenges for camera oximetry on a mobile phone.

Walter Karlen, Joanne Lim, John Mark Ansermino, Guy Albert Dumont, Cornie Scheffer

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012

Adaptive pulse segmentation and artifact detection in photoplethysmography for mobile applications.

Walter Karlen, John Mark Ansermino, Guy Albert Dumont

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012

Real-time cardiorespiratory coherence detects antinociception during general anesthesia.

Chris J. Brouse, Walter Karlen, Guy Albert Dumont, Dorothy Myers, Erin Cooke, Jonathan Stinson, Joanne Lim, John Mark Ansermino

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012

2011

Adaptive Sleep-Wake Discrimination for Wearable Devices.

Walter Karlen, Dario Floreano

IEEE Trans. Biomed. Eng., 2011

Automated Validation of Capillary Refill Time Measurements Using Photo-Plethysmogram from a Portable Device for Effective Triage in Children.

Walter Karlen, Amelia Pickard, Jeremy P. Daniels, Arthur Kwizera, Charles Ibingira, Guy Albert Dumont, John Mark Ansermino

Proceedings of the IEEE Global Humanitarian Technology Conference, 2011

Respiratory rate estimation using respiratory sinus arrhythmia from photoplethysmography.

Walter Karlen, Christopher J. Brouse, Erin Cooke, John Mark Ansermino, Guy Albert Dumont

Proceedings of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011

Wavelet transform cardiorespiratory coherence detects patient movement during general anesthesia.

Christopher J. Brouse, Walter Karlen, Dorothy Myers, Erin Cooke, Jonathan Stinson, Joanne Lim, Guy Albert Dumont, John Mark Ansermino

Proceedings of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011

Photoplethysmogram Processing Using an Adaptive Single Frequency Phase Vocoder Algorithm.

Walter Karlen, Chris Petersen, Jennifer Gow, John Mark Ansermino, Guy Albert Dumont

Proceedings of the Biomedical Engineering Systems and Technologies, 2011

Sleepic - Developments for a Wearable On-line Sleep and Wake Discrimination System.

Walter Karlen, Dario Floreano

Proceedings of the BIOSIGNALS 2011, 2011

Human-centered Phone Oximeter Interface Design for the Operating Room - Pulse Oximeter Interfaced to a Mobile Device for Anesthesia Monitoring in the Developing World.

Walter Karlen, Guy Albert Dumont, Chris Petersen, Jennifer Gow, Joanne Lim, Jules Sleiman, John Mark Ansermino

Proceedings of the HEALTHINF 2011, 2011

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.

Walter Karlen, Guy Albert Dumont, Chris Petersen, Jennifer Gow, John Mark Ansermino

Proceedings of the BIODEVICES 2011, 2011

2009

Adaptive wake and sleep detection for wearable systems.

Walter Karlen

PhD thesis, 2009

Sleep and Wake Classification With ECG and Respiratory Effort Signals.

Walter Karlen, Claudio Mattiussi, Dario Floreano

IEEE Trans. Biomed. Circuits Syst., 2009

2005

Perception and behavior of InsBot : Robot-Animal interaction issues.

Fabien Tâche, Masoud Asadpour, Gilles Caprari, Walter Karlen, Roland Siegwart

Proceedings of the IEEE International Conference on Robotics and Biomimetics, 2005