Norwegian version
Employee directory
Hugo Lewi Hammer

Hugo Lewi Hammer

Job title
  • Professor
Visiting address
  • Pilestredet 35, 0166 Oslo
Phone
  • Mobile: +47 452 10 184
  • Office: +47 672 38 692
E-mail
  • hugo.hammer@oslomet.no
Affiliation

About

Hammer has a master in industrial mathematics from 2003 and a PhD in computational statistics from 2008. His main research interests are within improving reliability and transparency of machine learning, reinforcement learning and deep learning models by developing methods within model interpretation, uncertainty quantification, robust statistics and causal inference.

Field of study

Bayesian statistics   Regression   Artificial intelligence   Machine learning   Applied statistics   Stochastic simulation   Big Data

Research groups

Research projects

Completed research projects

Publications and research

Scientific publications

Vo, Tuan L.; Nguyen, Thu; Ramos, Luis Miguel Lopez; Hammer, Hugo Lewi ; Riegler, Michael Alexander ; Halvorsen, Pål (2026). Explainability of machine learning models under missing data. Applied Soft Computing. Vol. 196.
https://doi.org/10.1016/j.asoc.2026.115105

Hammer, Hugo Lewi ; Thambawita, Vajira; Halvorsen, Pål (2026). Calliope: A TTS-based Narrated E-book Creator Ensuring Exact Synchronization, Privacy, and Layout Fidelity. Hui, Pan; Fung, May Yi R.; Hsu, Cheng-Hsin; Vega, Maria Torres (Ed.). MMSys '26: ACM Multimedia Systems Conference 2026. p. 416-422. Association for Computing Machinery (ACM).
https://doi.org/10.1145/3793853.3799808

Kristensen, Anna Tostrup; Thune, Noora Helene; Hammer, Hugo Lewi ; Khan, Qalbi; Utheim, Tor Paaske ; Kristoffersen, Camilla Sofia Miranda; Ziesler, Camilla Elise Øxnevad; Sehic, Amer (2026). From Images to Specimens: The Impact of Tactile, Three-Dimensional Learning in Dental Anatomy. Dentistry Journal. Vol. 14.
https://doi.org/10.3390/dj14040245

Thune, Noora Helene; Kristensen, Anna Tostrup; Hammer, Hugo Lewi ; Khan, Qalbi; Utheim, Tor Paaske ; Sehic, Amer (2026). Evaluating digital resources as a supplement to traditional anatomy teaching in dental education. Frontiers in Dental Medicine. Vol. 7.
https://doi.org/10.3389/fdmed.2026.1781318

Kristoffersen, Camilla Sofia Miranda; Ziesler, Camilla Elise Øxnevad; Thune, Noora Helene; Kristensen, Anna Tostrup; Utheim, Tor Paaske ; Hammer, Hugo Lewi ; Sehic, Amer; Brook, Alan Henry; Khan, Qalbi (2026). Histogenetics in Teaching the Complexity of Developmental Biology to Dental Students: A Study Merging Traditional and Current Approaches. Dentistry Journal. Vol. 14.
https://doi.org/10.3390/dj14030177

Tveter, Mats; Tveitstøl, Thomas; Hatlestad-Hall, Christoffer; Hammer, Hugo Lewi ; Haraldsen, Ira Hebold (2026). Uncertainty in deep learning for EEG under dataset shifts. Artificial Intelligence in Medicine. Vol. 174.
https://doi.org/10.1016/j.artmed.2026.103374

Kristensen, Anna Tostrup; Thune, Noora Helene; Khan, Qalbi; Utheim, Tor Paaske ; Hammer, Hugo Lewi ; Sehic, Amer (2026). Student perspectives on integrating basic and clinical dental sciences: insights from three dental schools in Norway. Frontiers in Dental Medicine. Vol. 7.
https://doi.org/10.3389/fdmed.2026.1746468

Tveitstøl, Thomas; Tveter, Mats; Hatlestad-Hall, Christoffer; Hammer, Hugo Lewi ; Engemann, Denis A.; Haraldsen, Ira Hebold (2025). Assessing the robustness of deep learning based brain age prediction models across multiple EEG datasets. IEEE Transactions on Biomedical Engineering.
https://doi.org/10.1109/TBME.2025.3639477

Riegler, Michael ; Hellton, Kristoffer Herland ; Thambawita, Vajira L B; Hammer, Hugo Lewi (2025). Using large language models to suggest informative prior distributions in Bayesian regression analysis. Scientific Reports. Vol. 15.
https://doi.org/10.1038/s41598-025-18425-9

Hammer, Hugo Lewi ; Thambawita, Vajira; Riegler, Michael (2025). Foundation models: the next level of AI in ART. Human Reproduction. Vol. 40.
https://doi.org/10.1093/humrep/deaf136



See all publications


These publications are obtained from Norwegian Research Information Repository. The list may be incomplete.

Research reports

Hammer, Hugo Lewi ; Riegler, Michael Alexander ; Delbarre, Erwan ; Stensen, Mette Haug; Sharma, Akriti (2025). Application of Artificial Intelligence in Assisted Reproductive Technology. ISBN: 9788283646696. 243 p. OsloMet - storbyuniversitetet.
https://hdl.handle.net/11250/4963767

Filho, Sidney Pontes; Nichele, Stefano; Yazidi, Anis ; Zhang, Jianhua ; Hammer, Hugo Lewi ; Sandvig, Ioanna; Tufte, Gunnar (2023). Optimization of dynamical systems towards criticality and intelligent behavior. ISBN: 9788232669530. Norges teknisk-naturvitenskapelige universitet.
https://hdl.handle.net/11250/3054723

Thambawita, Vajira; Jha, Debesh; Riegler, Michael ; Halvorsen, Pål ; Hammer, Hugo Lewi ; Johansen, Håvard D.; Johansen, Dag (2018). The Medico-Task 2018: Disease Detection in the Gastrointestinal Tract using Global Features and Deep Learning. 3 p. MediaEval 2018, arXiv:1810.13278, Cornell University.
https://hdl.handle.net/11250/4965311

Hammer, Hugo Lewi ; Haugan, John (2013). Matematikk og beregninger. 350 p. Høgskolen i Oslo og Akershus.
https://hdl.handle.net/11250/3421176

Mørken, Knut Martin; Malthe-Sørensen, Anders; Simonsen, Ingve; Hammer, Hugo Lewi ; Vatne, Jon Eivind; Nøst, Elisabeth; Løyning, Terje Brinck; Dahl, Lars Oswald; Sasaki, Nina (2011). Computing in Science Education. A guide for universities and colleges in Norway. 34 p. Universitetet i Oslo.
https://hdl.handle.net/11250/5051680

Mørken, Knut Martin; Simonsen, Ingve; Malthe-Sørensen, Anders; Hammer, Hugo Lewi ; Løyning, Terje Brinck; Vatne, Jon Eivind; Nøst, Elisabeth; Dahl, Lars Oswald; Sasaki, nina (2011). Beregninsorientert utdanning: En veileder for universiteter og høgskoler i Norge. 34 p. Universitetet i Oslo.
https://hdl.handle.net/11250/3424890

Hammer, Hugo Lewi (2008). Topics in stochastic simulation, with an application to seismic inversion. Norges teknisk-naturvitenskapelige universitet.
https://hdl.handle.net/11250/258141



These publications are obtained from Norwegian Research Information Repository. The list may be incomplete.

Dissemination

Hammer, Hugo Lewi ; Thambawita, Vajira; Riegler, Michael (2025). Reply: Foundation models in IVF: from speculation to implementation with FEMI.
https://doi.org/10.1093/humrep/deaf227

Sharma, Akriti; Alawad, Faiga; Kakulavarapu, Radhika; Iliceto, Mario; Riegler, Michael ; Stensen, Mette; Hammer, Hugo (2024). Exploring Embryo Development at the Morula Stage-an AI-based Approach to Determine Whether to Use or Discard an Embryo. 2024 4th International Conference on Applied Artificial Intelligence (ICAPAI).
https://doi.org/10.1109/ICAPAI61893.2024.10541175

Papachrysos, Nikolaos; Smedsrud, Pia Helen; Ånonsen, Kim Vidar; Berstad, Tor Jan; Espeland, Håvard; Petlund, Andreas; Hedenström, Per; Halvorsen, Pål ; Varkey, Jonas; Hammer, Hugo Lewi ; Riegler, Michael ; Lange, Thomas de (2024). A comparative study benchmarking colon polyp detection with CADe software. Endoscopy. Vol. S02.
https://doi.org/10.1055/s-0044-1782889

Sharma, Akriti; Stensen, Mette; Delbarre, Erwan ; Siddiqui, Momin; Haugen, Trine; Riegler, Michael ; Hammer, Hugo (2023). Detecting human embryo cleavage stages using YOLO v5 object detection algorithm. Nordic Artificial Intelligence Research and Development.
https://hdl.handle.net/11250/5522073

Storås, Andrea; Fineide, Fredrik; Hammer, Hugo Lewi ; Khan, Ayyad Ahmad Zartasht; Magnø, Morten Schjerven; Chen, Xiangjun; Halvorsen, Pål ; Utheim, Tor Paaske ; Riegler, Michael Alexander (2023). Using explainable artificial intelligence (XAI) to explore factors affecting meibomian gland (MG) dropout. Investigative Ophthalmology and Visual Science.
https://hdl.handle.net/11250/4319262

Fineide, Fredrik; Storås, Andrea; Magnø, Morten Schjerven; Hammer, Hugo Lewi ; Chen, Xiangjun; Khan, Ayyad Ahmad Zartasht; Halvorsen, Pål ; Utheim, Tor Paaske ; Riegler, Michael Alexander (2023). Predicting the degree of meibomian gland dropout with artificial intelligence. Investigative Ophthalmology and Visual Science.
https://hdl.handle.net/11250/5091576

Thambawita, Vajira L B; Hicks, Steven; Storås, Andrea; Andersen, Jorunn Marie ; Witczak, Oliwia ; Haugen, Trine B. ; Hammer, Hugo Lewi ; Nguyen, Thu; Halvorsen, Pål ; Riegler, Michael Alexander (2023). Medico Multimedia Task at MediaEval 2022: Transparent Tracking of Spermatozoa. CEUR Workshop Proceedings.
https://hdl.handle.net/11250/3997348

Thambawita, Vajira; Hicks, Steven A.; Storås, Andrea; Andersen, Jorunn Marie ; Witczak, Oliwia ; Nguyen, Thu; Haugen, Trine B. ; Hammer, Hugo Lewi ; Riegler, Michael ; Halvorsen, Pål (2023). Medico multimedia task at MedialEval: transparent tracking of spermatozoa. 22nd European Testis Workshop. European Testis Workshops/EMBO.
https://hdl.handle.net/11250/4851743

Sharma, Akriti; Kakulavarapu, Radhika; Thambawita, Vajira L B; Siddiqui, M.; Delbarre, Erwan ; Riegler, Michael; Hammer, Hugo Lewi ; Stensen, Mette Haug (2022). Automating tracking of cell division for human embryo development in time lapse videos. Human Reproduction. Vol. 37.
https://doi.org/10.1093/humrep/deac107.233

Thambawita, Vajira; Hicks, Steven; Storås, Andrea; Andersen, Jorunn; Witczak, Oliwia ; Haugen, Trine; Hammer, Hugo ; Nguyen, Thu; Halvorsen, Pål ; Riegler, Michael (2022). Medico Multimedia Task at MediaEval 2022: Transparent Tracking of Spermatozoa. MediaEval 2022.
https://hdl.handle.net/11250/5522417



See all publications


These publications are obtained from Norwegian Research Information Repository. The list may be incomplete.
P.O. Box 4, St. Olavs plass
NO-0130 Oslo
Norway
Tel.: +47 67 23 50 00
Contact us