Niklas Hellmer
I read the news today - oh, boy/ Four thousand holes in Blackburn, Lancashire/ And though the holes were rather small/ They had to count them all/ Now they know how many holes it takes to fill the Albert Hall-The Beatles, A Day In The Life
I'm a third year PhD student interested in metrics for persistence diagrams and modules and interactions of TDA with statistics.
Personal Information
Dioscuri Centre in Topological Data AnalysisInstytut Matematyczny PAN
Room 16
Sniadeckich 8, 00-656 Warszawa
ORCID Here is a recent CV.
News
- 08/05/2023:
- - "Bottleneck Profiles and Discrete Prokhorov Metric for Persistence Diagrams" released online at DCG.
- 28/10/2022:
- - Preprint "Topology-Driven Goodness-of-Fit Tests in Arbitrary Dimensions" on the ArXiv.
- 10.-14.10.2022
- - Attending the workshop on geometry, topology and statistics at Institut Henri Poincare, Paris.
- winter term 2022/23
- - teaching recitation classes for Analysis I for WNE.
- 28.-30.09.2022
- - Attending the TDA Workshop in Heidelberg, giving a "lightning talk" an Goodness-of-fit testing using Topology.
- 23/04/2022:
- - Giing a talk at the 4th (Virtual) International Conference on Trauma Surgery Technology 2022, dedicated to Mathematics in Medical Diagnostics .
- 04/03/2022:
- - Teaching labs for Pawel's course "Invitation to TDA".
- 10/11/2021:
- - Giving a talk at the Dioscuri Seminar.
- 22/10/2021:
- - Giving a talk in Piotr Hajac's Noncommutative Geometry Seminar about Persistent Homology: Algebra, Metrics, Stability.
- 04/10/2021:
- - Back in office!
- 21/07/2021:
- - Talk at the Lorentz Centre Workshop on Metrics in Multiparameter Persistence.
- 7/06/2021:
- - Preprint "Bottleneck Profiles and Discrete Prokhorov Metric for Persistence Diagrams" on the ArXiv.
- 30/04/2021:
- - Poster presentation "Discrete Prokhorov Metric for Persistence Diagrams" at TDA workshop at IMSI.
- 21/02/2021:
- - Talk about "Discrete Prokhorov Metric for Persistence Diagrams" at APATG.
- 15/10/2020:
- - Official inauguration of the Dioscuri Centre.
- 1/10/2020:
- - I move to Dioscuri TDA at IMPAN.
- 29/09/2020:
- - Talk about "New Metrics for Persistence Diagrams" at the Second Symposium on Machine Learning and Dynamical Systems. Video.
- 21/08/2020:
- - OxCOVID19DB preprint on medRxiv.
Publications
(BibTeX)[1]
P. Dłotko and N. Hellmer, ‘Bottleneck Profiles and Discrete Prokhorov Metrics for Persistence Diagrams’, Discrete Comput Geom, May 2023, doi: 10.1007/s00454-023-00498-w.
[2]
P. Dłotko, N. Hellmer, Ł. Stettner, and R. Topolnicki, ‘Topology-Driven Goodness-of-Fit Tests in Arbitrary Dimensions’. arXiv, Oct. 25, 2022. doi: 10.48550/arXiv.2210.14965.
[3]
A. Mahdi et al., ‘OxCOVID19 Database, a multimodal data repository for better understanding the global impact of COVID-19’, Scientific Reports, vol. 11, no. 1, Art. no. 1, Apr. 2021, doi: 10.1038/s41598-021-88481-4.