preprints/reports

2026

1. Haya Alyoussef, Ahmad Bdeir, Diego Coello Portugal Mecke, Tom Hanika, Niels Landwehr, Lars Schmidt-Thieme

   HexFormer: Hyperbolic Vision Transformer with Exponential Map Aggregation

   CoRR (2026).

   doiBibtex

   @article{DBLP:journals/corr/abs-2601-19849,
     author = {Alyoussef, Haya and Bdeir, Ahmad and de Portugal Mecke, Diego Coello and Hanika, Tom and Landwehr, Niels and Schmidt{-}Thieme, Lars},
     title = {HexFormer: Hyperbolic Vision Transformer with Exponential Map Aggregation},
     journal = {CoRR},
     year = {2026},
     doi = {10.48550/ARXIV.2601.19849},
     eprinttype = {arXiv},
     eprint = {2601.19849},
     keywords = {preprint},
     preprint = {true}
   }

2. Johannes Burchert, Ahmad Bdeir, Tom Hanika, Lars Schmidt-Thieme, Niels Landwehr

   LAtte: Hyperbolic Lorentz Attention for Cross-Subject EEG Classification

   CoRR (2026).

   URLBibtex

   @article{burchert2026lattehyperboliclorentzattention,
     title = {LAtte: Hyperbolic Lorentz Attention for Cross-Subject EEG Classification},
     author = {Burchert, Johannes and Bdeir, Ahmad and Hanika, Tom and Schmidt-Thieme, Lars and Landwehr, Niels},
     year = {2026},
     eprint = {2603.10881},
     archiveprefix = {arXiv},
     primaryclass = {cs.LG},
     url = {https://arxiv.org/abs/2603.10881},
     journal = {CoRR},
     preprint = {true}
   }

3. Christian Klötergens, Tom Hanika, Lars Schmidt-Thieme, Vijaya Krishna Yalavarthi

   Valid and Expressive Copulas for Irregular Multivariate Time Series

   CoRR abs/2605.23632 (2026),.

   doiBibtex

   @article{DBLP:journals/corr/abs-2605-23632,
     author = {Kl{\"{o}}tergens, Christian and Hanika, Tom and Schmidt{-}Thieme, Lars and Yalavarthi, Vijaya Krishna},
     title = {Valid and Expressive Copulas for Irregular Multivariate Time Series},
     journal = {CoRR},
     volume = {abs/2605.23632},
     year = {2026},
     url = {https://doi.org/10.48550/arXiv.2605.23632},
     doi = {10.48550/ARXIV.2605.23632},
     eprinttype = {arXiv},
     eprint = {2605.23632},
     timestamp = {Fri, 12 Jun 2026 15:09:34 +0200},
     biburl = {https://dblp.org/rec/journals/corr/abs-2605-23632.bib},
     bibsource = {dblp computer science bibliography, https://dblp.org},
     preprint = {true}
   }

4. Ilia Koloiarov, Diego Coello Portugal Mecke, Vijaya Krishna Yalavarthi, Tom Hanika, Lars Schmidt-Thieme

   The Importance of Encoder Choice:A Tabular-Image Study

   (2026).

   URLBibtex

   @article{koloiarov2026importanceencoderchoiceatabularimage,
     title = {The Importance of Encoder Choice:A Tabular-Image Study},
     author = {Koloiarov, Ilia and de Portugal Mecke, Diego Coello and Yalavarthi, Vijaya Krishna and Hanika, Tom and Schmidt-Thieme, Lars},
     year = {2026},
     eprint = {2607.07756},
     archiveprefix = {arXiv},
     primaryclass = {cs.LG},
     url = {https://arxiv.org/abs/2607.07756},
     preprint = {true}
   }

5. Katharina Birgit Budde, Zoltán Attila Köbölkuti, Tom Hanika,  others

   Fourteen years of Alpine Forest Genomics Network (AForGeN): Advances in the research field and perspectives ahead

   Research Square (2026).

   doiBibtex

   @article{budde2026aforgen,
     author = {Budde, Katharina Birgit and K{\"o}b{\"o}lkuti, Zolt{\'a}n Attila and Hanika, Tom and others},
     title = {Fourteen years of {Alpine Forest Genomics Network} ({AForGeN}): Advances in the research field and perspectives ahead},
     year = {2026},
     month = jun,
     journal = {Research Square},
     note = {Preprint (Version 1)},
     doi = {10.21203/rs.3.rs-9882196/v1},
     url = {https://doi.org/10.21203/rs.3.rs-9882196/v1},
     preprint = {true},
   }

2025

1. Diego Coello Portugal Mecke, Haya Alyoussef, Maximilian Stubbemann, Ilia Koloiarov, Tom Hanika, Lars Schmidt-Thieme

   STADE: Standard Deviation as a Pruning Metric

   URLBibtex

   @misc{mecke2025stadestandarddeviationpruning,
     title = {STADE: Standard Deviation as a Pruning Metric},
     author = {de Portugal Mecke, Diego Coello and Alyoussef, Haya and Stubbemann, Maximilian and Koloiarov, Ilia and Hanika, Tom and Schmidt-Thieme, Lars},
     year = {2025},
     eprint = {2503.22451},
     archiveprefix = {arXiv},
     primaryclass = {cs.LG},
     url = {https://arxiv.org/abs/2503.22451},
     keywords = {preprint},
     preprint = {true}
   }

2022

1. Bastian Schäfermeier, Gerd Stumme, Tom Hanika

   Mapping Research Trajectories

   preprint (2022).

   URLBibtex

   @article{schaefermeier21,
     author = {Schäfermeier, Bastian and Stumme, Gerd and Hanika, Tom},
     keywords = {preprint,selected},
     publisher = {arXiv},
     note = {Journal Submission},
     eprinttype = {arXiv},
     eprint = {2204.11859},
     journal = {preprint},
     title = {Mapping Research Trajectories},
     url = {https://arxiv.org/abs/2204.11859},
     year = {2022},
     preprint = {true}
   }

2. Dominik Dürrschnabel, Tom Hanika, Gerd Stumme

   Discovering Locally Maximal Bipartite Subgraphs

   preprint (2022).

   doiBibtex

   @article{dombipartite,
     author = {Dürrschnabel, Dominik and Hanika, Tom and Stumme, Gerd},
     title = {Discovering Locally Maximal Bipartite Subgraphs},
     journal = {preprint},
     year = {2022},
     url = {https://doi.org/10.48550/arXiv.2211.10446},
     doi = {10.48550/arXiv.2211.10446},
     note = {Conference Submission},
     keywords = {preprint},
     preprint = {true}
   }

2021

1. Bastian Schäfermeier, Gerd Stumme, Tom Hanika

   Topological Indoor Mapping through WiFi Signals

   preprint (2021).

   URLBibtex

   @article{tim,
     author = {Sch{\"{a}}fermeier, Bastian and Stumme, Gerd and Hanika, Tom},
     title = {Topological Indoor Mapping through WiFi Signals},
     year = {2021},
     eprinttype = {arXiv},
     eprint = {2106.09789},
     note = {Journal Submission},
     journal = {preprint},
     keywords = {preprint},
     url = {https://arxiv.org/pdf/2106.09789},
     preprint = {true}
   }

2. Bastian Schäfermeier, Gerd Stumme, Tom Hanika

   Towards Explainable Scientific Venue Recommendations

   preprint (2021).

   URLBibtex

   @article{DBLP:journals/corr/abs-2109-11343,
     author = {Sch{\"{a}}fermeier, Bastian and Stumme, Gerd and Hanika, Tom},
     title = {Towards Explainable Scientific Venue
                       Recommendations},
     journal = {preprint},
     year = {2021},
     eprinttype = {arXiv},
     eprint = {2109.11343},
     timestamp = {Mon, 27 Sep 2021 15:21:05 +0200},
     biburl = {https://dblp.org/rec/journals/corr/abs-2109-11343.bib},
     bibsource = {dblp computer science bibliography,
                       https://dblp.org},
     keywords = {preprint,selected},
     note = {Journal Submission},
     url = {https://arxiv.org/pdf/2109.11343},
     preprint = {true}
   }

2019

1. Tom Hanika, Marek Herde, Jochen Kuhn, Jan Marco Leimeister, Paul Lukowicz, Sarah Oeste-Reiß, Albrecht Schmidt, Bernhard Sick, Gerd Stumme, Sven Tomforde, Katharina Anna Zweig

   Collaborative Interactive Learning - A clarification of terms and a differentiation from other research fields

   CoRR abs/1905.07264 (2019),.

   doiBibtex

   @article{cil,
     author = {Hanika, Tom and Herde, Marek and Kuhn, Jochen and Leimeister, Jan Marco and Lukowicz, Paul and Oeste-Reiß, Sarah and Schmidt, Albrecht and Sick, Bernhard and Stumme, Gerd and Tomforde, Sven and Zweig, Katharina Anna},
     title = {Collaborative Interactive Learning - A clarification
                       of terms and a differentiation from other research
                       fields},
     journal = {CoRR},
     volume = {abs/1905.07264},
     year = {2019},
     doi = {10.48550/arxiv.1905.07264},
     url = {http://arxiv.org/abs/1905.07264},
     timestamp = {Tue, 28 May 2019 12:48:08 +0200},
     biburl = {https://dblp.org/rec/bib/journals/corr/abs-1905-07264},
     bibsource = {dblp computer science bibliography,
                       https://dblp.org},
     keywords = {workshop},
     preprint = {true},
   }