Dr. Erik Thordsen

@article{OKKELS2026102768,
title = {Approximate hierarchical density-based clustering using graph-based search indexes},
journal = {Information Systems},
pages = {102768},
year = {2026},
issn = {0306-4379},
doi = {10.1016/j.is.2026.102768},
url = {https://www.sciencedirect.com/science/article/pii/S0306437926000827},
author = {Camilla Birch Okkels and Erik Thordsen and Martin Aumüller and Arthur Zimek and Erich Schubert},
}

@inproceedings{DBLP:conf/sisap/OkkelsTAZS25,
 author = {Camilla Birch Okkels and Erik Thordsen and Martin Aumüller and Arthur Zimek and Erich Schubert},
 booktitle = {Proceedings of the 18th International Conference on Similarity Search and Applications (SISAP), Reykjavik, Iceland},
 doi = {10.1007/978-3-032-06069-3\_19},
 pages = {233--247},
 title = {Approximate Single-Linkage Clustering Using Graph-Based Indexes: MST-Based Approaches and Incremental Searchers},
 year = {2025}
}

@inproceedings{DBLP:conf/sisap/ThordsenS25,
 author = {Erik Thordsen and Erich Schubert},
 booktitle = {Proceedings of the 18th International Conference on Similarity Search and Applications (SISAP), Reykjavik, Iceland},
 doi = {10.1007/978-3-032-06069-3\_22},
 pages = {273--287},
 title = {Theoretical and Practical Insights into Graph-Based Indexing},
 year = {2025}
}

@article{DBLP:journals/is/ThordsenS25,
 author = {Erik Thordsen and Erich Schubert},
 doi = {10.1016/J.IS.2025.102563},
 journal = {Inf. Syst.},
 pages = {102563},
 title = {An Alternating Optimization Scheme for Binary Sketches},
 volume = {133},
 year = {2025}
}

@inproceedings{DBLP:conf/sisap/ThordsenS24,
 author = {Erik Thordsen and Erich Schubert},
 booktitle = {Proceedings of the 17th International Conference on Similarity Search and Applications (SISAP), Providence, RI, USA},
 doi = {10.1007/978-3-031-75823-2\_23},
 pages = {274--282},
 title = {Grouping Sketches to Index High-Dimensional Data in a Resource-Limited Setting},
 year = {2024}
}

@article{DBLP:journals/corr/abs-2405-18401,
 author = {Erik Thordsen and Erich Schubert},
 doi = {10.48550/ARXIV.2405.18401},
 eprint = {2405.18401},
 eprinttype = {arXiv},
 journal = {CoRR},
 title = {Explicit Formulae to Interchangeably use Hyperplanes and Hyperballs using Inversive Geometry},
 volume = {abs/2405.18401},
 year = {2024}
}

@inproceedings{DBLP:conf/sisap/ThordsenS23,
 author = {Erik Thordsen and Erich Schubert},
 booktitle = {Proceedings of the 16th International Conference on Similarity Search and Applications (SISAP), A Coru{\~{n}}a, Spain},
 doi = {10.1007/978-3-031-46994-7\_4},
 pages = {41--55},
 title = {An Alternating Optimization Scheme for Binary Sketches for Cosine Similarity Search},
 year = {2023}
}

@inproceedings{DBLP:conf/sisap/ThordsenS22,
 author = {Erik Thordsen and Erich Schubert},
 booktitle = {Similarity Search and Applications - 15th International Conference, {SISAP} 2022, Bologna, Italy, October
5-7, 2022, Proceedings},
 doi = {10.1007/978-3-031-17849-8\_7},
 pages = {75--88},
 title = {On Projections to Linear Subspaces},
 year = {2022}
}

@article{DBLP:journals/is/ThordsenS22,
 author = {Erik Thordsen and Erich Schubert},
 doi = {10.1016/J.IS.2022.101989},
 journal = {Inf. Syst.},
 pages = {101989},
 title = {{ABID:} Angle Based Intrinsic Dimensionality - Theory and analysis},
 volume = {108},
 year = {2022}
}

@inproceedings{DBLP:conf/sisap/ThordsenS21,
 author = {Erik Thordsen and Erich Schubert},
 booktitle = {Similarity Search and Applications - 14th International Conference, {SISAP} 2021, Dortmund, Germany, September
29 - October 1, 2021, Proceedings},
 doi = {10.1007/978-3-030-89657-7\_18},
 pages = {232--246},
 title = {{MESS:} Manifold Embedding Motivated Super Sampling},
 year = {2021}
}

@inproceedings{DBLP:conf/lwa/ThordsenS21,
 author = {Erik Thordsen and Erich Schubert},
 booktitle = {Proceedings of the {LWDA} 2021 Workshops: FGWM, KDML, FGWI-BIA, and FGIR, Online, September 1-3, 2021},
 pages = {219--231},
 title = {{CANDLE:} Classification And Noise Detection With Local Embedding Approximations},
 url = {https://ceur-ws.org/Vol-2993/paper-21.pdf},
 year = {2021}
}

@inproceedings{DBLP:conf/sisap/ThordsenS20,
 author = {Erik Thordsen and Erich Schubert},
 booktitle = {Similarity Search and Applications - 13th International Conference, {SISAP} 2020, Copenhagen, Denmark, September
30 - October 2, 2020, Proceedings},
 doi = {10.1007/978-3-030-60936-8\_17},
 pages = {218--232},
 title = {{ABID:} Angle Based Intrinsic Dimensionality},
 year = {2020}
}