- nello.blaser@uib.no
- Phone number
- +47 55584791
- Visitor address
-
HIB - Thormøhlens gate 55
5006 Bergen - Room: 603N2
- Postal address
-
P.O. Box 7803NO-5020 BergenNorway
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Research groups
Research
My research interests are focused on topological methods in statistics and machine learning. Topological data analysis refers to the analysis of data shape. My research spans from encoding of data into filtered simplicial complexes (topological representation), approximations of filtered simplicial complexes (sparsification), validation measures of unsupervised persistent homology, data benchmarks, efficient vector representations of persistent homology for supervised machine learning and applications of topological methods in biology and geophysics.
Publications
Poster
- Blørstad, Morten; Lunde, Berent Ånund Strømsnes; Blaser, Nello (2024). Stable Update of Regression Trees. (external link)
- Gundersen, Kristian; Oleynik, Anna; Blaser, Nello et al. (2020). Reconstruction of Currents Based on Sparse Observations with Deep Learning. (external link)
- Dale, Karina; Müller, Mette Helen Bjørge; Tairova, Zhanna et al. (2019). Biological responses of Atlantic cod (Gadus morhua) exposed to polycyclic aromatic hydrocarbons (PAHs) and perfluoroalkyl substances (PFASs) . (external link)
- Hanna, Eileen Marie; Zhang, Xiaokang; Fallahi, Shirin et al. (2019). A draft metabolic reconstruction of Atlantic cod (Gadus morhua) liver . (external link)
- Goksøyr, Anders; Alendal, Guttorm; Aranguren-Abadía, Libe et al. (2019). dCOD 1.0: DECODING THE SYSTEMS TOXICOLOGY OF ATLANTIC COD (GADUS MORHUA) – HIGHLIGHTS SO FAR. (external link)
- Zhang, Xiaokang; Eide, Marta; Karlsen, Odd Andre et al. (2019). THE CHEMICAL DEFENSOME OF ATLANTIC COD (GADUS MORHUA): HOW DOES IT DIFFER FROM DEFENSOME NETWORKS IN OTHER TELEOST SPECIES?. (external link)
- Hanna, Eileen Marie; Blaser, Nello; Brun, Morten et al. (2018). Persistent homology and network analyses reveal key gene interactions affected by environmental pollutants in Atlantic cod. (external link)
- Eide, Marta; Zhang, Xiaokang; Karlsen, Odd Andre et al. (2018). MODELLING THE CHEMICAL DEFENSOME NETWORKS - a comparative visualisation of the defense genes and interactions in two fish species and human. (external link)
- Blaser, Nello; Brun, Morten; Bader, Lucius et al. (2018). Diagnosing rheumatoid arthritis with mass cytometry using topological data analysis. (external link)
- Oleynik, Anna; Gundersen, Kristian; Alendal, Guttorm et al. (2018). Mathematical methods for detection and localization of CO2 leaks. (external link)
- Goksøyr, Siri Øfsthus; Goksøyr, Anders; Karlsen, Odd Andre et al. (2017). dCod 1.0 decoding the systems toxicology of Atlantic cod. (external link)
- Goksøyr, Anders; Celander, Malin; Alendal, Guttorm et al. (2017). dCod 1.0: decoding the systems toxicology of Atlantic cod (Gadus morhua). (external link)
- Blaser, Nello; Fallahi, Shirin; Frøysa, Håvard G (2017). Model reduction under parameter uncertainty. (external link)
- Gundersen, Kristian; Blaser, Nello; Alendal, Guttorm et al. (2017). Assessment of Topological Data Analysis and Machine Learning Technologies as Tools for Seep Detection. (external link)
Academic article
- Blaser, Nello; Brun, Morten; Salbu, Lars Moberg et al. (2024). The parameterized complexity of finding minimum bounded chains. (external link)
- Sam, Emmanuel; Bergougnoux, Benjamin; Golovach, Petr et al. (2023). Kernelization for Finding Lineal Topologies (Depth-First Spanning Trees) with Many or Few Leaves. (external link)
- Eide, Marta; Goksøyr, Anders; Yadetie, Fekadu et al. (2023). Integrative omics-analysis of lipid metabolism regulation by peroxisome proliferator-activated receptor a and b agonists in male Atlantic cod. (external link)
- Tislevoll, Benedicte Sjo; Hellesøy, Monica; Fagerholt, Oda Helen Eck et al. (2023). Early response evaluation by single cell signaling profiling in acute myeloid leukemia. (external link)
- Black, Mitchell; Blaser, Nello; Nayyeri, Amir et al. (2022). ETH-Tight Algorithms for Finding Surfaces in Simplicial Complexes of Bounded Treewidth. (external link)
- Tislevoll, Benedicte Sjo; Hellesøy, Monica; Fagerholt, Oda Helen Eck et al. (2022). Early response evaluation by single cell signaling profiling in acute myeloid leukemia. (external link)
- Blaser, Nello; Brun, Morten (2022). Relative Persistent Homology. (external link)
- Mayala, Simeon Sahani; Herdlevær, Ida Ajvazi; Haugsøen, Jonas Bull et al. (2022). GUBS: Graph-based unsupervised brain segmentation in MRI images. (external link)
- Gundersen, Kristian; Oleynik, Anna; Blaser, Nello et al. (2021). Semi-conditional variational auto-encoder for flow reconstruction and uncertainty quantification from limited observations. (external link)
- Oleynik, Anna; García-Ibáñez, Maribel I.; Blaser, Nello et al. (2020). Optimal sensors placement for detecting CO2 discharges from unknown locations on the seafloor. (external link)
- Gundersen, Kristian; Alendal, Guttorm; Oleynik, Anna et al. (2020). Binary time series classification with Bayesian convolutional neural networks when monitoring for marine gas discharges . (external link)
- Blaser, Nello; Brun, Morten (2020). Relative Persistent Homology. (external link)
- Bringeland, Gerd Haga; Blaser, Nello; Myhr, Kjell-Morten et al. (2020). Wearing-off at the end of natalizumab dosing intervals is associated with low receptor occupancy. (external link)
- Blaser, Nello; Brun, Morten (2019). Sparse Nerves in Practice. (external link)
- Bringeland, Gerd Haga; Bader, Lucius; Blaser, Nello et al. (2019). Optimization of receptor occupancy assays in mass cytometry: Standardization across channels with QSC beads. (external link)
- Bader, Lucius; Gullaksen, Stein-Erik; Blaser, Nello et al. (2019). Candidate markers for stratification and classification in rheumatoid arthritis. (external link)
- Dale, Karina; Müller, Mette Bjørge; Tairova, Zhanna et al. (2019). Contaminant accumulation and biological responses in Atlantic cod (Gadus morhua) caged at a capped waste disposal site in Kollevåg, Western Norway. (external link)
- Brun, Morten; Blaser, Nello (2019). Sparse Dowker nerves. (external link)
- Estill, Janne; Kerr, Cliff C.; Blaser, Nello et al. (2018). The effect of monitoring viral load and tracing patients lost to follow-up on the course of the HIV epidemic in Malawi: A mathematical model. (external link)
- Brun, Morten; Blaser, Nello (2018). Sparse Filtered Nerves . (external link)
- Blaser, Nello; Brun, Morten (2018). Divisive Cover. (external link)
- Frøysa, Håvard G; Fallahi, Shirin; Blaser, Nello (2018). Evaluating model reduction under parameter uncertainty. (external link)
- Yadetie, Fekadu; Zhang, Xiaokang; Hanna, Eileen Marie et al. (2018). RNA-Seq analysis of transcriptome responses in Atlantic cod (Gadus morhua) precision-cut liver slices exposed to benzo[a]pyrene and 17α-ethynylestradiol. (external link)
- Ahmed , Kareem Eldin Mohammed ; Frøysa, Håvard G; Karlsen, Odd Andre et al. (2018). Effects of defined mixtures of POPs and endocrine disruptors on the steroid metabolome of the human H295R adrenocortical cell line. (external link)
- Brun, Morten; Blaser, Nello (2017). Filtered covers. (external link)
- Blaser, Nello; Bertisch, Barbara; Kouyos, Roger D. et al. (2017). Impact of screening and antiretroviral therapy on anal cancer incidence in HIV-positive MSM. (external link)
Academic lecture
- Galmiche, Natacha; Hauser, Helwig; Spengler, Thomas et al. (2021). Revealing Multimodality in Ensemble Weather Prediction. (external link)
- Blaser, Nello; Brun, Morten (2020). Relative Persistent Homology. (external link)
- Eide, Marta; Goksøyr, Anders; Yadetie, Fekadu et al. (2020). A multi-omics approach to study Ppar-mediated regulation of lipid metabolism in Atlantic cod (Gadus morhua). (external link)
- Brun, Morten; Blaser, Nello (2019). Sparse Nerves in Practice. (external link)
- Yadetie, Fekadu; Zhang, Xiaokang; Hanna, Eileen Marie et al. (2019). Toxicogenomic responses in Atlantic cod (Gadus morhua) after treatment with selected environmental contaminants in vivo and ex vivo. (external link)
- Dale, Karina; Müller, Mette Helen Bjørge; Tairova, Zhanna et al. (2019). Biological responses of Atlantic cod (Gadus morhua) exposed to polycyclic aromatic hydrocarbons and perfluoroalkyl substances. (external link)
- Gundersen, Kristian; Oleynik, Anna; Blaser, Nello et al. (2019). Bayesian convolutional neural networks as a tool to detect discharges of pollutants to marine waters through time series classification. (external link)
- Goksøyr, Anders; Alendal, Guttorm; Aranguren-Abadía, Libe et al. (2019). dCOD 1.0: DECODING THE SYSTEMS TOXICOLOGY OF ATLANTIC COD (GADUS MORHUA) – HIGHLIGHTS SO FAR. (external link)
- Eide, Marta; Zhang, Xiaokang; Karlsen, Odd Andre et al. (2019). The chemical defensome of Atlantic cod (Gadus morhua). (external link)
- Yadetie, Fekadu; Zhang, Xiaokang; Hanna, Eileen Marie et al. (2019). EFFECTS OF SELECTED ENVIRONMENTAL ESTROGENS ON EXPRESSION OF FIBROBLAST GROWTH FACTOR SIGNALING PATHWAY GENES IN THE LIVER OF ATLANTIC COD (GADUS MORHUA) IN VIVO AND EX VIVO. (external link)
- Eide, Marta; Zhang, Xiaokang; Karlsen, Odd Andre et al. (2018). Modelling the chemical defensome network - a dynamic visualisation of the involved genes and pathways in two fish species and humans . (external link)
- Eide, Marta; Zhang, Xiaokang; Karlsen, Odd Andre et al. (2018). Modelling The Chemical Defensome Networks - A Comparative Dynamic Visualisation Of The Involved Genes And Interactions In Two Fish Species And Humans. (external link)
- Tairova, Zhanna; Müller, Mette Helen Bjørge; Lyche, Jan Ludvig et al. (2018). Adverse health effects related to chemical exposure in Atlantic cod (Gadus morhua) from Norwegian fjords. (external link)
- Zhang, Xiaokang; Eide, Marta; Karlsen, Odd Andre et al. (2018). Modelling the chemical defensome networks --- a dynamic visualisation of the involved genes and interactions in two fish species and human. (external link)
- Goksøyr, Anders; Alendal, Guttorm; Aranguren Abadía, Libe et al. (2018). dCOD 1.0: DECODING THE SYSTEMS TOXICOLOGY OF ATLANTIC COD (GADUS MORHUA). (external link)
- Blaser, Nello; Hanna, Eileen Marie; Brun, Morten et al. (2018). Discovering pathway perturbations with topological edge set enrichment analysis (TESEA). (external link)
- Yadetie, Fekadu; Zhang, Xiaokang; Hanna, Eileen Marie et al. (2018). RNA-seq analysis of transcriptome responses in Atlantic cod (Gadus morhua) precision cut liver slices exposed to benzo[a]pyrene and 17α-ethynylestradiol. (external link)
- Alendal, Guttorm; Oleynik, Anna; Blaser, Nello et al. (2018). The need for proper environmental statistics to design adequate monitoring for offshore geological storage of CO2 projects.. (external link)
- Yadetie, Fekadu; Zhang, Xiaokang; Hanna, Eileen Marie et al. (2018). RNA-seq analysis of transcriptome responses in Atlantic cod (Gadus morhua) precision cut liver slices exposed to benzo[a]pyrene and 17α-ethynylestradiol. (external link)
- Gundersen, Kristian; Oleynik, Anna; Alendal, Guttorm et al. (2018). Combining Models and Machine Learning Techniques to Design Leak Detection Monitoring . (external link)
- Gundersen, Kristian; Oleynik, Anna; Skaug, Hans J. et al. (2018). Machine Learning in CO2 leak detection. (external link)
- Yadetie, Fekadu; Eide, Marta; Söderström, Sofie et al. (2017). PRECISION-CUT LIVER SLICES (PCLS) FOR TOXICOGENOMIC STUDIES IN ATLANTIC COD (Gadus morhua): THE dCOD 1.0 PROJECT. (external link)
- Blaser, Nello; Fallahi, Shirin; Frøysa, Håvard G (2017). Model reduction under parameter uncertainty. (external link)
- Blaser, Nello; Brun, Morten (2017). An attempt at using topology for classification. (external link)
- Blaser, Nello; Brun, Morten (2017). Divisive cover classification. (external link)
- Blaser, Nello (2017). Topological Data Analysis in Epidemiology. (external link)
- Blaser, Nello; Fallahi, Shirin; Frøysa, Håvard G (2017). Model reduction under parameter uncertainty. (external link)
- Tairova, Zhanna; Müller, Mette Helen Bjørge; Lyche, Jan Ludvig et al. (2017). Adverse effects in Atlantic cod (Gadus morhua) due to environmental exposure to pollutant mixtures from the Oslofjord, Norway. (external link)
Academic chapter/article/Conference paper
Article in business/trade/industry journal
Lecture
- Blaser, Nello (2019). Machine Learning in Mathematical Modeling. (external link)
- Hanna, Eileen Marie; Zhang, Xiaokang; Eide, Marta et al. (2019). A draft metabolic reconstruction of Atlantic cod (Gadus morhua) liver: how to and what for?. (external link)
- Blaser, Nello (2017). Clinical trials for biomarker detection and evaluation - opportunities, benefits and challenges - The biostatistician’s view. (external link)