Bilde av Horsch, Alexander
Photo: UiT

Alexander Horsch


Professor

Job description

Alexander Horsch, born 1955 in Augsburg, Germany, is professor in computer science. His main scientific contributions are in the creation of systems for medical image analysis and for biosignal analysis, also in combination with telemedicine services. Early work focused on computer aided diagnosis of cancer, where I was one of the drivers in developing a system for the early detection of melanoma which was patented and integrated in a commercial product. Lately I worked on accelerometer data analysis for research on physical activity in the framework of large populations studies. Current emphasis is on methods from artificial intelligence, including machine learning and deep learning, with a focus on use cases from medicine, biology, and public health.


  • Rohit Agarwal, Ludwig Alexander Horsch, Dilip Kumar Prasad :
    Modelling Irregularly Sampled Time Series Without Imputation
    arXiv.org 2023 DOI
  • Abhinanda Ranjit Punnakkal, Suyog Sakhahari Jadhav, Krishna Agarwal, Ludwig Alexander Horsch, Dilip Kumar Prasad :
    MiShape: 3D Shape Modelling of Mitochondria in Microscopy
    arXiv.org 2023 DOI
  • Rohit Agarwal, Ankit Butola, Ludwig Alexander Horsch, Dilip Kumar Prasad, Krishna Agarwal :
    Taxonomy of hybridly polarized Stokes vortex beams
    arXiv.org 2023 DOI
  • Abhinanda Ranjit Punnakkal, Gustav Godtliebsen, Ayush Somani, Sebastian Andres Acuna Maldonado, Åsa birna Birgisdottir, Dilip K. Prasad et al.:
    Analyzing Mitochondrial Morphology Through Simulation Supervised Learning
    Journal of Visualized Experiments 2023 ARKIV / DOI
  • Erlend Johannessen, Jonas Johansson, Gunnar Hartvigsen, Alexander Horsch, Eirik Årsand, André Henriksen :
    Collecting health-related research data using consumer-based wireless smart scales
    International Journal of Medical Informatics 2023 ARKIV / DOI
  • Rohit Agarwal, Gyanendra Das, Saksham Aggarwal, Ludwig Alexander Horsch, Dilip Kumar Prasad :
    Mabnet: Master Assistant Buddy Network With Hybrid Learning for Image Retrieval
    Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing 2023 DOI
  • Rohit Agarwal, Dilip Kumar Prasad, Ludwig Alexander Horsch :
    Aux-Drop: Handling Haphazard Inputs in Online Learning Using Auxiliary Dropouts
    Transactions on Machine Learning Research (TMLR) 2023
  • Marc Stephan Weitz, Bente Morseth, Laila Arnesdatter Hopstock, Ludwig Alexander Horsch :
    Influence of Accelerometer Calibration on the Estimation of Objectively Measured Physical Activity: The Tromsø Study
    Journal for the Measurement of Physical Behaviour (JMPB) 2023 DOI
  • S Chattopadhyay, Antoni Malachowski, Jaya Kumari Swain, Roy Ambli Dalmo, Alexander Horsch, Dilip K. Prasad :
    Mapping Functional Changes in the Embryonic Heart of Atlantic Salmon Post Viral Infection Using AI Technique
    Proceedings of IEEE International Conference on Image Processing 2022 DOI
  • Sigurd Klemetsen Beldo, Nils Abel Aars, Tore Christoffersen, Anne-Sofie Furberg, Peder Andreas Halvorsen, Bjørge Hermann Hansen et al.:
    Criterion validity of the Saltin-Grimby Physical Activity Level Scale in adolescents : the Fit Futures Study
    PLOS ONE 2022 FULLTEKST / ARKIV / DOI
  • Erlend Johannessen, André Henriksen, Gunnar Hartvigsen, Alexander Horsch, Eirik Årsand, Jonas Johansson :
    Ubiquitous digital health-related data: clarification of concepts
    2022 ARKIV / DOI
  • Ayush Somani, Arif Ahmed Sekh, Ida Sundvor Opstad, Åsa birna Birgisdottir, Truls Myrmel, Balpreet Singh Ahluwalia et al.:
    Virtual labeling of mitochondria in living cells using correlative imaging and physics-guided deep learning
    Biomedical Optics Express 2022 ARKIV / DOI
  • Mats Kirkeby Fjeld, Anders Årnes, Bo Lars Engdahl, Bente Morseth, Laila Arnesdatter Hopstock, Alexander Horsch et al.:
    Consistent pattern between physical activity measures and chronic pain levels: the Tromsø Study 2015 to 2016
    Pain 2022 ARKIV / DOI
  • Divij Singh, Ayush Somani, Alexander Horsch, Dilip K. Prasad :
    Counterfactual Explainable Gastrointestinal and Colonoscopy Image Segmentation
    IEEE International Symposium on Biomedical Imaging 2022 ARKIV / DOI
  • Jo Inge Arnes, Alexander Hapfelmeier, Alexander Horsch :
    Autostrata: Improved Automatic Stratification for Coarsened Exact Matching
    2022 ARKIV / DOI
  • Ayush Somani, Divij Singh, Alexander Horsch, Dilip K. Prasad :
    T-MIS: Transparency Adaptation in Medical Image Segmentation
    Nordic Machine Intelligence (NMI) 2021 DOI
  • Chiara Bordin, Amin Ziagham Ahwazi, Sambeet Mishra, Alexander Horsch, Hoai Phuong Ha :
    Sustainable and decarbonized data-center facilities: A socio-techno-economic discussion
    IEEE PES Innovative Smart Grid Technologies Conference Europe 2021 DOI
  • Amin Ziagham Ahwazi, Chiara Bordin, Sambeet Mishra, Hoai Phuong Ha, Alexander Horsch :
    VEDA - moVE DAta to balance the grid: research directions and recommendations for exploiting data centers flexibility within the power system
    Proceedings of the ACM/IEEE Joint Conference on Digital Libraries (JCDL) 2021 ARKIV / DOI
  • Patrick Blauberger, Alexander Horsch, Martin Lames :
    Detection of ground contact times with inertial sensors in elite 100-m sprints under competitive field conditions
    Sensors 2021 ARKIV / DOI
  • Shaheen Syed, Bente Morseth, Laila Arnesdatter Hopstock, Alexander Horsch :
    A novel algorithm to detect non-wear time from raw accelerometer data using deep convolutional neural networks
    Scientific Reports 2021 ARKIV / FULLTEKST / DOI
  • Ayush Somani, Arif Ahmed Sekh, Ida Sundvor Opstad, Åsa Birna Birgisdottir, Truls Myrmel, Balpreet Singh Ahluwalia et al.:
    Digital Staining of Mitochondria in Label-free Live-cell Microscopy
    Springer 2021 DOI
  • Nils Abel Aars, Sigurd Beldo, Bjarne K. Jacobsen, Alexander Horsch, Bente Morseth, Nina Emaus et al.:
    Association between objectively measured physical activity and longitudinal changes in body composition in adolescents : the Tromsø study fit futures cohort
    BMJ Open 2020 ARKIV / FULLTEKST / DOI
  • Anders Årnes, Christopher Sivert Nielsen, Audun Stubhaug, Mats Kirkeby Fjeld, Laila Arnesdatter Hopstock, Alexander Horsch et al.:
    Physical activity and cold pain tolerance in the general population
    European Journal of Pain 2020 ARKIV / DOI
  • Sigurd Beldo, Bente Morseth, Tore Christoffersen, Peder Andreas Halvorsen, Bjørge Hermann Hansen, Anne-Sofie Furberg et al.:
    Prevalence of accelerometer-measured physical activity in adolescents in Fit Futures - part of the Tromsø Study
    BMC Public Health 2020 ARKIV / DOI
  • Edvard Hamnvik Sagelv, Laila Arnesdatter Hopstock, Jonas Johansson, Bjørge Hermann Hansen, Brage Søren, Alexander Horsch et al.:
    Criterion validity of two physical activity and one sedentary time questionnaire against accelerometry in a large cohort of adults and older adults
    BMJ Open sport & exercise medicine 2020 ARKIV / DOI
  • Shaheen Syed, Bente Morseth, Laila Arnesdatter Hopstock, Alexander Horsch :
    Evaluating the performance of raw and epoch non-wear algorithms using multiple accelerometers and electrocardiogram recordings
    Scientific Reports 2020 ARKIV / DOI
  • André Henriksen, Sameline Grimsgaard, Alexander Horsch, Gunnar Hartvigsen, Laila Arnesdatter Hopstock :
    Validity of the Polar M430 Activity Monitor in Free-Living Conditions: Validation Study
    JMIR Formative Research 2019 ARKIV / DOI
  • Ida Marie Opdal, Bente Morseth, Bjørn Helge Handegård, Kjersti Lillevoll, Helga Ask, Christopher Sivert Nielsen et al.:
    Change in physical activity is not associated with change in mental distress among adolescents: The Tromsø Study: Fit Futures
    BMC Public Health 2019 ARKIV / DOI
  • Edvard Hamnvik Sagelv, Ulf Ekelund, Sigurd Pedersen, Søren Brage, Bjørge Hermann Hansen, Jonas Johansson et al.:
    Physical activity levels in adults and elderly from triaxial and uniaxial accelerometry. The Tromsø Study
    PLOS ONE 03. December 2019 ARKIV / DOI
  • Romy Conzade, Eva Grill, Heike A. Bischoff-Ferrari, Uta Ferrari, Alexander Horsch, Wolfgang König et al.:
    Vitamin D in relation to incident sarcopenia and changes in muscle parameters among older adults: The KORA-Age Study
    Calcified Tissue International 2019 ARKIV / DOI
  • John Markus Bjørndalen, Otto Anshus, Tore Brox-Larsen, Hoai Phuong Ha, Rolf Anker Ims, Jane Uhd Jepsen et al.:
    Building a Sensor System for a Large Scale Arctic Observatory
    IOS Press 2018 DOI
  • Marjan Arvandi, Barbara Strasser, Konstantinos Volaklis, Karl-Heinz Ladwig, Eva Grill, Raffaella Matteucci Gothe et al.:
    Mediator Effect of Balance Problems on Association Between Grip Strength and Falls in Older Adults: Results From the KORA-Age Study
    Gerontology and geriatric medicine 2018 DOI
  • Vi Ngoc-Nha Tran, Tommy Skaue Øines, Alexander Horsch, Hoai Phuong Ha :
    REOH: Using Probabilistic Network for Runtime Energy Optimization of Heterogeneous Systems
    Proceedings of the International Conference on Parallel and Distributed Systems 2018 DOI
  • Maia P Smith, Alexander Horsch, Marie Standl, Joachim Heinrich, Holger Schulz :
    Uni- and triaxial accelerometric signals agree during daily routine, but show differences between sports
    Scientific Reports 2018 ARKIV / DOI
  • Ayush Somani, Alexander Horsch, Dilip K. Prasad :
    Interpretability in Deep Learning
    Springer 2023
  • Erlend Johannessen, André Henriksen, Eirik Årsand, Alexander Horsch, Jonas Johansson, Gunnar Hartvigsen :
    Health Research Requires Efficient Platforms for Data Collection from Personal Devices
    Studies in Health Technology and Informatics 2023 ARKIV / DOI
  • Rohit Agarwal, Ludwig Alexander Horsch, Dilip Kumar Prasad :
    Code - Modelling Irregularly Sampled Time Series Without Imputation
    2023
  • Rohit Agarwal, Ludwig Alexander Horsch, Dilip Kumar Prasad :
    Code - MABNET: Master Assistant Buddy Network for Image Retrieval
    2023
  • Anders Årnes, Mats Kirkeby Fjeld, Tom Wilsgaard, Bente Morseth, Laila Arnesdatter Hopstock, T Graven-Nielsen et al.:
    The relationship between physical activity and cuff-pressure algometry tolerance: The Tromsø Study 2015-2016
    2022
  • Erlend Johannessen, André Henriksen, Gunnar Hartvigsen, Alexander Horsch, Eirik Årsand, Jonas Johansson :
    Ubiquitous digital health-related data: clarification of concepts
    2022
  • Rohit Agarwal, Krishna Agarwal, Alexander Horsch, Dilip K. Prasad :
    Auxiliary Network: Scalable and agile online learning for dynamic system with inconsistently available inputs
    2022 ARKIV
  • Laila Arnesdatter Hopstock, Shaheen Syed, Bente Morseth, Alexander Horsch :
    Ny kunnskap om måling av stillesitting
    2020 FULLTEKST
  • Edvard Hamnvik Sagelv, Ulf Ekelund, Jonas Johansson, Søren Brage, Alexander Horsch, Laila Arnesdatter Hopstock et al.:
    Comparing a short physical activity questionnaire with accelerometer measures as criterion validity: The Tromsø Study
    2019
  • Edvard Hamnvik Sagelv, Ulf Ekelund, Jonas Johansson, Boye Welde, Sameline Grimsgaard, Nina Emaus et al.:
    Measures of adiposity and its association to physical activity: The Tromsø Study
    2019
  • Nils Abel Aars, Sigurd Beldo, Bjarne K. Jacobsen, Alexander Horsch, Bente Morseth, Nina Emaus et al.:
    The association between objectively measured physical activity and longitudinal changes in body composition in adolescents; The Tromsø Study Fit Futures Cohort.
    2019
  • André Henriksen, Alexander Horsch, Sameline Grimsgaard, Laila Arnesdatter Hopstock :
    Validation of the Actiheart, ActiGraph, and ActiWave Cardio for measuring physical activity and heart rate in the Tromsø 7 study and the Know Your Heart study
    2018
  • Vi Ngoc-Nha Tran, Tommy Oines, Alexander Horsch, Hoai Phuong Ha :
    REOH: Using Probabilistic Network for Runtime Energy Optimization of Heterogeneous Systems
    2018
  • Vi Ngoc-Nha Tran, Tommy Oines, Alexander Horsch, Hoai Phuong Ha :
    REOH: Runtime Energy Optimization for Heterogeneous Systems
    2018 FULLTEKST / DATA
  • Edvard Hamnvik Sagelv, Ulf Ekelund, Sigurd Pedersen, Søren Brage, Sameline Grimsgaard, Anna Nordström et al.:
    Physical Activity levels in Women and Men Measured by Accelerometer. The Tromsø Study
    2018
  • Ashenafi Zebene Woldaregay, Taridzo Chomutare, Dave Albers, Lena Mamykina, Ole Kristian Hejlesen, Christian Lovis et al.:
    An early infectious disease outbreak detection system based on self-recorded data from people with diabetes
    Diabetes Technology & Therapeutics 2017

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