publications | Tom Hanika

2025

Maximilian Stubbemann, Tobias Hille, Tom Hanika

Unsupervised Selection of Features by their Resilience to the Curse of Dimensionality

In: To appear in 48th KI, T. Braun, F. Stolzenburg, B. Paaßen (eds.), . Springer (2025).

Bibtex

@inproceedings{hirth2024geometric,
  author = {Stubbemann, Maximilian and Hille, Tobias and Hanika, Tom},
  title = {Unsupervised Selection of Features by their Resilience to the Curse of Dimensionality},
  year = {2025},
  editor = {Braun, Tanya and Stolzenburg, Frieder and Paaßen, Benjamin},
  series = {Lecture Notes in Computer Science},
  booktitle = {To appear in 48th KI},
  publisher = {Springer},
}

Johannes Hirth, Tom Hanika

The Geometric Structure of Topic Models

In: Conceptual Knowledge Structures - 2nd International Joint Conference, CONCEPTS 2025, P. Cellier, B. Ganter, R. Missaoui (eds.), . Springer (to appear) (2025).

Bibtex

@inproceedings{hirth2024geometrid,
  author = {Hirth, Johannes and Hanika, Tom},
  title = {The Geometric Structure of Topic Models},
  year = {2025},
  editor = {Cellier, P. and Ganter, B. and Missaoui, R.},
  series = {Lecture Notes in Computer Science},
  booktitle = {Conceptual Knowledge Structures - 2nd International Joint Conference, {CONCEPTS} 2025},
  publisher = {Springer (to appear)},
}

Tobias Hille, Tom Hanika

Incomplete Formal Contexts and their Intrinsic Dimension

In: Conceptual Knowledge Structures - 2nd International Joint Conference, CONCEPTS 2025, P. Cellier, B. Ganter, R. Missaoui (eds.), . Springer (to appear) (2025).

Bibtex

@inproceedings{hille2025dim,
  author = {Hille, Tobias and Hanika, Tom},
  title = {Incomplete Formal Contexts and their Intrinsic Dimension},
  year = {2025},
  editor = {Cellier, P. and Ganter, B. and Missaoui, R.},
  series = {Lecture Notes in Computer Science},
  booktitle = {Conceptual Knowledge Structures - 2nd International Joint Conference,
                    {CONCEPTS} 2025},
  publisher = {Springer (to appear)},
}

2024

Tobias Hille, Maximilian Stubbemann, Tom Hanika

Reproducibility and Geometric Intrinsic Dimensionality: An Investigation on Graph Neural Network Research.

Transactions on Machine Learning Research (2024).

URL Bibtex

@article{hille2024reproducibility,
  title = {Reproducibility and Geometric Intrinsic Dimensionality: An Investigation on Graph Neural Network Research.},
  author = {Hille, Tobias and Stubbemann, Maximilian and Hanika, Tom},
  journal = {Transactions on Machine Learning Research},
  issn = {2835-8856},
  year = {2024},
  url = {https://openreview.net/forum?id=CtEGxIqtud},
  note = {Reproducibility Certification},
}

Johannes Hirth, Viktoria Horn, Gerd Stumme, Tom Hanika

Ordinal motifs in lattices

Information Sciences 659 (2024), 120009.

Abs doi Bibtex

Lattices are a commonly used structure for the representation and analysis of relational and ontological knowledge. In particular, the analysis of these requires a decomposition of a large and high-dimensional lattice into a set of understandably large parts. With the present work we propose /ordinal motifs/ as analytical units of meaning. We study these ordinal substructures (or standard scales) through order-embeddings and (full) scale-measures of formal contexts from the field of formal concept analysis. We show that the underlying decision problems are NP-complete and provide results on how one can incrementally identify ordinal motifs to save computational effort. Accompanying our theoretical results, we demonstrate how ordinal motifs can be leveraged to achieve textual explanations based on principles from human computer interaction.
@article{HIRTH2024120009, title = {Ordinal motifs in lattices}, journal = {Information Sciences}, volume = {659}, pages = {120009}, year = {2024}, month = jan, issn = {0020-0255}, doi = {10.1016/j.ins.2023.120009}, url = {https://www.sciencedirect.com/science/article/pii/S0020025523015943}, author = {Hirth, Johannes and Horn, Viktoria and Stumme, Gerd and Hanika, Tom}, keywords = {Ordered sets, Explanations, Formal concept analysis, Closure system, Conceptual structures}, }

Katharina B. Budde, Christian Rellstab, Myriam Heuertz, Felix Gugerli, Tom Hanika, Miguel Verdú, Juli G. Pausas, Santiago C. González-Martínez

Divergent selection in a Mediterranean pine on local spatial scales

Journal of Ecology 112 (2024), no. 2, 278-290.

doi Bibtex

@article{https://doi.org/10.1111/1365-2745.14231,
  author = {Budde, Katharina B. and Rellstab, Christian and Heuertz, Myriam and Gugerli, Felix and Hanika, Tom and Verdú, Miguel and Pausas, Juli G. and González-Martínez, Santiago C.},
  title = {Divergent selection in a Mediterranean pine on local
                    spatial scales},
  journal = {Journal of Ecology},
  keywords = {candidate genes, FST outlier, local adaptation,
                    paired sampling design, Pinus pinaster, south-
                    versus north-facing slopes},
  doi = {10.1111/1365-2745.14231},
  url = {https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1111/1365-2745.14231},
  volume = {112},
  number = {2},
  pages = {278-290},
  eprint = {https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2745.14231},
  year = {2024},
}

Tom Hanika, Tobias Hille

What is the Intrinsic Dimension of Your Binary Data? - and How to Compute it Quickly

In: Conceptual Knowledge Structures - First International Joint Conference, CONCEPTS 2024, Cádiz, Spain, September 9-13, 2024, Proceedings, I. Cabrera, S. Ferré, S. Obiedkov (eds.), 97–112. Springer (2024).

doi Bibtex

@inproceedings{DBLP:conf/concepts/HanikaH24,
  author = {Hanika, Tom and Hille, Tobias},
  editor = {Cabrera, Inma P. and Ferr{\'{e}}, S{\'{e}}bastien and Obiedkov, Sergei A.},
  title = {What is the Intrinsic Dimension of Your Binary Data? - and How to
                    Compute it Quickly},
  booktitle = {Conceptual Knowledge Structures - First International Joint Conference,
                    {CONCEPTS} 2024, C{\'{a}}diz, Spain, September 9-13, 2024, Proceedings},
  series = {Lecture Notes in Computer Science},
  volume = {14914},
  pages = {97--112},
  publisher = {Springer},
  year = {2024},
  url = {https://doi.org/10.1007/978-3-031-67868-4\_7},
  doi = {10.1007/978-3-031-67868-4\_7},
  timestamp = {Mon, 12 Aug 2024 21:21:40 +0200},
}

Tom Hanika, Robert Jäschke

A Repository for Formal Contexts

doi Bibtex

@inproceedings{DBLP:conf/concepts/HanikaJ24,
  author = {Hanika, Tom and J{\"{a}}schke, Robert},
  editor = {Cabrera, Inma P. and Ferr{\'{e}}, S{\'{e}}bastien and Obiedkov, Sergei A.},
  title = {A Repository for Formal Contexts},
  booktitle = {Conceptual Knowledge Structures - First International Joint Conference,
                    {CONCEPTS} 2024, C{\'{a}}diz, Spain, September 9-13, 2024, Proceedings},
  series = {Lecture Notes in Computer Science},
  volume = {14914},
  pages = {182--197},
  publisher = {Springer},
  year = {2024},
  url = {https://doi.org/10.1007/978-3-031-67868-4\_13},
  doi = {10.1007/978-3-031-67868-4\_13},
  timestamp = {Mon, 12 Aug 2024 21:21:40 +0200},
}

Bernhard Ganter, Tom Hanika, Johannes Hirth, Sergei Obiedkov

Collaborative Hybrid Human AI Learning through Conceptual Exploration

In: Proceedings of the Workshops at the Third International Conference on Hybrid Human-Artificial Intelligence co-located with (HHAI 2024), Malmö, Sweden, June 10-11, 2024, P. Ericson, N. Khairova, M. Vos (eds.), 1–8. CEUR-WS.org (2024).

URL Bibtex

@inproceedings{DBLP:conf/hhai/GanterHHO24,
  author = {Ganter, Bernhard and Hanika, Tom and Hirth, Johannes and Obiedkov, Sergei},
  editor = {Ericson, Petter and Khairova, Nina and Vos, Marina De},
  title = {Collaborative Hybrid Human {AI} Learning through Conceptual Exploration},
  booktitle = {Proceedings of the Workshops at the Third International Conference
                    on Hybrid Human-Artificial Intelligence co-located with {(HHAI} 2024),
                    Malm{\"{o}}, Sweden, June 10-11, 2024},
  series = {{CEUR} Workshop Proceedings},
  volume = {3825},
  pages = {1--8},
  publisher = {CEUR-WS.org},
  year = {2024},
  url = {https://ceur-ws.org/Vol-3825/tutorial.pdf},
  timestamp = {Fri, 22 Nov 2024 16:40:08 +0100},
  biburl = {https://dblp.org/rec/conf/hhai/GanterHHO24.bib},
  bibsource = {dblp computer science bibliography, https://dblp.org},
}

2023

Maximilian Stubbemann, Tom Hanika, Friedrich Martin Schneider

Intrinsic Dimension for Large-Scale Geometric Learning

Transactions on Machine Learning Research (2023).

URL Bibtex

@article{stubbemann22,
  added-at = {2022-10-12T10:58:53.000+0200},
  author = {Stubbemann, Maximilian and Hanika, Tom and Schneider, Friedrich Martin},
  biburl = {https://www.bibsonomy.org/bibtex/222e3a51007f8947640b29167996fe48c/tomhanika},
  description = {Intrinsic Dimension for Large-Scale Geometric
                    Learning},
  interhash = {ddb49d07cf62c8b138a8a223d4753081},
  intrahash = {22e3a51007f8947640b29167996fe48c},
  journal = {Transactions on Machine Learning Research},
  keywords = {journal,selected},
  timestamp = {2023-01-13T13:27:54.000+0100},
  title = {Intrinsic Dimension for Large-Scale Geometric
                    Learning},
  url = {https://openreview.net/forum?id=85BfDdYMBY},
  year = {2023},
}

Bastian Schäfermeier, Johannes Hirth, Tom Hanika

Research Topic Flows in Co-Authorship Networks

Scientometrics 128 (2023), no. 9, 5051–5078.

doi Bibtex

@article{schafermeier2022research,
  author = {Schäfermeier, Bastian and Hirth, Johannes and Hanika, Tom},
  biburl = {https://www.bibsonomy.org/bibtex/23688d07e1cd8318ef9665336665825b5/tomhanika},
  description = {Research Topic Flows in Co-Authorship Networks},
  doi = {10.1007/s11192-022-04529-w},
  interhash = {6e8cb91056c87bd63bb2046be8055cea},
  intrahash = {3688d07e1cd8318ef9665336665825b5},
  issn = {1588-2861},
  journal = {Scientometrics},
  keywords = {journal},
  month = sep,
  number = {9},
  pages = {5051--5078 },
  timestamp = {2023-08-13T14:43:50.000+0200},
  title = {Research Topic Flows in Co-Authorship Networks},
  volume = {128},
  year = {2023},
}

Bernhard Ganter, Tom Hanika, Johannes Hirth

Scaling Dimension

In: 17th ICFCA, Proceedings, D. Dürrschnabel, D. López-Rodríguez (eds.), 64–77. Springer (2023).

doi Bibtex

@inproceedings{DBLP:conf/icfca/GanterHH23,
  added-at = {2023-08-02T16:54:41.000+0200},
  author = {Ganter, Bernhard and Hanika, Tom and Hirth, Johannes},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  biburl = {https://www.bibsonomy.org/bibtex/2ae364c1012bb099c906b24ecdc7f688d/tomhanika},
  booktitle = {17th {ICFCA}, Proceedings},
  doi = {10.1007/978-3-031-35949-1\_5},
  editor = {Dürrschnabel, Dominik and López-Rodríguez, Domingo},
  interhash = {a3f20563676f3181056c601d1def547a},
  intrahash = {ae364c1012bb099c906b24ecdc7f688d},
  keywords = {conf},
  pages = {64--77},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  timestamp = {2023-08-02T16:54:41.000+0200},
  title = {Scaling Dimension},
  url = {https://doi.org/10.1007/978-3-031-35949-1\_5},
  volume = {13934},
  month = jul,
  year = {2023},
}

Johannes Hirth, Viktoria Horn, Gerd Stumme, Tom Hanika

Automatic Textual Explanations of Concept Lattices

In: Graph-Based Representation and Reasoning, ICCS 2023, M. Ojeda-Aciego, K. Sauerwald, R. Jäschke (eds.), 138–152. Springer (2023).

doi Bibtex

@inproceedings{hirth2023automatic,
  author = {Hirth, Johannes and Horn, Viktoria and Stumme, Gerd and Hanika, Tom},
  editor = {Ojeda{-}Aciego, Manuel and Sauerwald, Kai and J{\"{a}}schke, Robert},
  title = {Automatic Textual Explanations of Concept Lattices},
  booktitle = {Graph-Based Representation and Reasoning, ICCS 2023},
  series = {LNCS},
  volume = {14133},
  pages = {138--152},
  publisher = {Springer},
  year = {2023},
  url = {https://doi.org/10.1007/978-3-031-40960-8\_12},
  doi = {10.1007/978-3-031-40960-8\_12},
  timestamp = {Sat, 19 Aug 2023 11:36:52 +0200},
  biburl = {https://dblp.org/rec/conf/iccs/HirthHSH23.bib},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  keywords = {conf},
}

Tom Hanika, Johannes Hirth

Conceptual views on tree ensemble classifiers

International Journal of Approximate Reasoning 159 (2023), 108930.

doi Bibtex

@article{DBLP:journals/corr/abs-2302-05270,
  title = {Conceptual views on tree ensemble classifiers},
  journal = {International Journal of Approximate Reasoning},
  pages = {108930},
  year = {2023},
  volume = {159},
  issn = {0888-613X},
  doi = {10.1016/j.ijar.2023.108930},
  author = {Hanika, Tom and Hirth, Johannes},
  keywords = {journal},
}

Dominik Dürrschnabel, Tom Hanika, Gerd Stumme

Drawing Order Diagrams Through Two-Dimension Extension

J. Graph Algorithms Appl. 27 (2023), no. 9, 783–802.

doi Bibtex

@article{DBLP:journals/corr/abs-2307-09477,
  author = {D{\"{u}}rrschnabel, Dominik and Hanika, Tom and Stumme, Gerd},
  title = {Drawing Order Diagrams Through Two-Dimension
                    Extension},
  journal = {J. Graph Algorithms Appl.},
  volume = {27},
  number = {9},
  pages = {783--802},
  year = {2023},
  url = {https://doi.org/10.7155/jgaa.00645},
  doi = {10.7155/JGAA.00645},
  timestamp = {Wed, 13 Dec 2023 15:12:34 +0100},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  keywords = {journal},
}

Gerd Stumme, Dominik Dürrschnabel, Tom Hanika

Towards Ordinal Data Science

Transactions on Graph Data and Knowledge 1 (2023), no. 1, 6:1–6:39.

doi Bibtex

@article{DBLP:journals/tgdk/StummeDH23,
  author = {Stumme, Gerd and Dürrschnabel, Dominik and Hanika, Tom},
  title = {Towards Ordinal Data Science},
  journal = {Transactions on Graph Data and Knowledge},
  volume = {1},
  number = {1},
  pages = {6:1--6:39},
  year = {2023},
  url = {https://doi.org/10.4230/TGDK.1.1.6},
  doi = {10.4230/TGDK.1.1.6},
  timestamp = {Tue, 19 Dec 2023 17:15:12 +0100},
  biburl = {https://dblp.org/rec/journals/tgdk/StummeDH23.bib},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  keywords = {journal},
}

2022

Tom Hanika, Friedrich Martin Schneider, Gerd Stumme

Intrinsic dimension of geometric data sets

Tohoku Mathematical Journal 74 (2022), no. 1, 23 – 52.

doi Bibtex

@article{intrinsic,
  added-at = {2022-01-30T18:56:40.000+0100},
  author = {Hanika, Tom and Schneider, Friedrich Martin and Stumme, Gerd},
  biburl = {https://www.bibsonomy.org/bibtex/234cd317c997745ba26b40684b702987a/tomhanika},
  doi = {10.2748/tmj.20201015a},
  interhash = {3b9cbb6abf829a466684a2d55f7da4b7},
  intrahash = {34cd317c997745ba26b40684b702987a},
  journal = {Tohoku Mathematical Journal},
  keywords = {journal,selected},
  number = {1},
  pages = {23 -- 52},
  publisher = {Tohoku University, Mathematical Institute},
  timestamp = {2022-01-30T18:56:40.000+0100},
  title = {Intrinsic dimension of geometric data sets},
  volume = {74},
  year = {2022},
  issn = {0040-8735},
}

Dominik Dürrschnabel, Tom Hanika, Maximilian Stubbemann

FCA2VEC: Embedding Techniques for Formal Concept Analysis

In: Complex Data Analytics with FCA, R. Missaoui, L. Kwuida, T. Abdessalem (eds.), 47–74. Springer International Publishing (2022).

doi Bibtex

@incollection{DBLP:journals/corr/abs-1911,
  added-at = {2022-09-24T20:55:13.000+0200},
  author = {D{\"{u}}rrschnabel, Dominik and Hanika, Tom and Stubbemann, Maximilian},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  biburl = {https://www.bibsonomy.org/bibtex/2e127e1457fc3ea1df732f8cc594915a5/tomhanika},
  booktitle = {Complex Data Analytics with FCA},
  doi = {10.1007/978-3-030-93278-7\_3},
  editor = {Missaoui, Rokia and Kwuida, L{\'{e}}onard and Abdessalem, Talel},
  interhash = {7ad825cabba8f18d55b93aae54f70548},
  intrahash = {e127e1457fc3ea1df732f8cc594915a5},
  keywords = {chapter,selected},
  pages = {47--74},
  publisher = {Springer International Publishing},
  timestamp = {2022-09-24T20:55:13.000+0200},
  title = {{FCA2VEC:} Embedding Techniques for Formal Concept
                    Analysis},
  url = {https://doi.org/10.1007/978-3-030-93278-7\_3},
  year = {2022},
}

Tom Hanika, Johannes Hirth

Knowledge Cores in Large Formal Contexts

Ann Math Artif Intell 90 (2022), no. 6, 537–567.

doi Bibtex

@article{hanika2020knowledge,
  added-at = {2020-02-28T19:31:47.000+0100},
  author = {Hanika, Tom and Hirth, Johannes},
  biburl = {https://www.bibsonomy.org/bibtex/2e7d49af166607ff1e5b04793e2787f34/tomhanika},
  description = {Knowledge Cores in Large Formal Contexts},
  interhash = {d57d3232c080a195e0e4f5209db2bbc9},
  intrahash = {e7d49af166607ff1e5b04793e2787f34},
  keywords = {journal,selected},
  journal = {Ann Math Artif Intell},
  volume = {90},
  number = {6},
  pages = {537--567},
  url = {http://arxiv.org/abs/2002.11776},
  doi = {10.1007/s10472-022-09790-6},
  title = {Knowledge Cores in Large Formal Contexts},
  year = {2022},
}

Tom Hanika, Johannes Hirth

On the lattice of conceptual measurements

Information Sciences 613 (2022), 453-468.

doi Bibtex

@article{conmeasure,
  author = {Hanika, Tom and Hirth, Johannes},
  biburl = {https://www.bibsonomy.org/bibtex/2752bc4553487e6472b22faf56e744cad/tomhanika},
  doi = {10.1016/j.ins.2022.09.005},
  interhash = {ecd4e48ac83c8aea9197f7e3d861b032},
  intrahash = {752bc4553487e6472b22faf56e744cad},
  issn = {0020-0255},
  journal = {Information Sciences},
  keywords = {journal,selected},
  pages = {453-468},
  timestamp = {2022-09-28T00:14:02.000+0200},
  title = {On the lattice of conceptual measurements},
  url = {https://www.sciencedirect.com/science/article/pii/S0020025522010489},
  volume = {613},
  year = {2022},
}

2021

Tobias Koopmann, Maximilian Stubbemann, Matthias Kapa, Michael Paris, Guido Buenstorf, Tom Hanika, Andreas Hotho, Robert Jäschke, Gerd Stumme

Proximity dimensions and the emergence of collaboration: a HypTrails study on German AI research

Scientometrics 126 (2021), 9847–9868.

doi Bibtex

@article{hanikaregio,
  added-at = {2021-03-22T11:43:21.000+0100},
  author = {Koopmann, Tobias and Stubbemann, Maximilian and Kapa, Matthias and Paris, Michael and Buenstorf, Guido and Hanika, Tom and Hotho, Andreas and Jäschke, Robert and Stumme, Gerd},
  biburl = {https://www.bibsonomy.org/bibtex/2403544c0381c5a42e340c6f288bee105/tomhanika},
  doi = {10.1007/s11192-021-03922-1},
  interhash = {978010893e7acaeaba6432d8ca9adb97},
  intrahash = {403544c0381c5a42e340c6f288bee105},
  issn = {15882861},
  journal = {Scientometrics},
  keywords = {journal},
  timestamp = {2021-03-22T11:43:21.000+0100},
  title = {Proximity dimensions and the emergence of
                    collaboration: a HypTrails study on German AI
                    research},
  url = {https://doi.org/10.1007/s11192-021-03922-1},
  year = {2021},
  volume = {126},
  pages = {9847--9868},
}

Bastian Schaefermeier, Gerd Stumme, Tom Hanika

Topic space trajectories

Scientometrics 126 (2021), no. 7, 5759–5795.

doi Bibtex

@article{schafermeier2020topic,
  added-at = {2021-05-17T09:43:31.000+0200},
  author = {Schaefermeier, Bastian and Stumme, Gerd and Hanika, Tom},
  biburl = {https://www.bibsonomy.org/bibtex/215df2429e8ec728aeeeaa40a35852502/tomhanika},
  day = {15},
  doi = {10.1007/s11192-021-03931-0},
  interhash = {60e655758b29aeeb6355cb4f67f27c33},
  intrahash = {15df2429e8ec728aeeeaa40a35852502},
  issn = {1588-2861},
  journal = {Scientometrics},
  keywords = {journal,selected},
  month = may,
  timestamp = {2021-05-17T09:44:51.000+0200},
  title = {Topic space trajectories},
  url = {https://doi.org/10.1007/s11192-021-03931-0},
  number = {7},
  year = {2021},
  volume = {126},
  pages = {5759--5795},
}

Tom Hanika, Johannes Hirth

Exploring Scale-Measures of Data Sets

In: 16th ICFCA, Proceedings, A. Braud, A. Buzmakov, T. Hanika, F. Le Ber (eds.), 261–269. Springer (2021).

doi Bibtex

@inproceedings{hanika2021exploring,
  author = {Hanika, Tom and Hirth, Johannes},
  editor = {Braud, Agn{\`e}s and Buzmakov, Aleksey and Hanika, Tom and Le Ber, Florence},
  title = {Exploring Scale-Measures of Data Sets},
  booktitle = {16th {ICFCA}, Proceedings},
  volume = {12733},
  year = {2021},
  publisher = {Springer},
  pages = {261--269},
  isbn = {978-3-030-77867-5},
  keywords = {conf},
  doi = {10.1007/978-3-030-77867-5\_17},
}

Formal Concept Analysis - 16th International Conference, ICFCA 2021, Strasbourg, France, June 29 - July 2, 2021, Proceedings

A. Braud, A. Buzmakov, T. Hanika, F. Ber (eds.), Springer (2021).

doi Bibtex

@proceedings{DBLP:conf/icfca/2021,
  added-at = {2021-06-27T12:07:06.000+0200},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  biburl = {https://www.bibsonomy.org/bibtex/22800bb018f9e09ad5efdc51dadcb7e0c/tomhanika},
  doi = {10.1007/978-3-030-77867-5},
  editor = {Braud, Agn{\`{e}}s and Buzmakov, Aleksey and Hanika, Tom and Ber, Florence Le},
  interhash = {1c375404e6536e59c820cc91e96b5465},
  intrahash = {2800bb018f9e09ad5efdc51dadcb7e0c},
  isbn = {978-3-030-77866-8},
  keywords = {2021 fca itegpub kde kdepub myown proceedings
                    publist},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  timestamp = {2021-06-27T12:16:11.000+0200},
  title = {Formal Concept Analysis - 16th International
                    Conference, {ICFCA} 2021, Strasbourg, France, June
                    29 - July 2, 2021, Proceedings},
  url = {https://doi.org/10.1007/978-3-030-77867-5},
  volume = {12733},
  year = {2021},
}

Tom Hanika, Johannes Hirth

Quantifying the Conceptual Error in Dimensionality Reduction

In: Graph-Based Representation and Reasoning - 26th ICCS 2021, T. Braun, M. Gehrke, T. Hanika, N. Hernandez (eds.), 105–118. Springer (2021).

doi Bibtex

@inproceedings{conerror,
  author = {Hanika, Tom and Hirth, Johannes},
  editor = {Braun, Tanya and Gehrke, Marcel and Hanika, Tom and Hernandez, Nathalie},
  title = {Quantifying the Conceptual Error in Dimensionality
                    Reduction},
  booktitle = {Graph-Based Representation and Reasoning - 26th
                    {ICCS} 2021},
  series = {LNCS},
  volume = {12879},
  pages = {105--118},
  publisher = {Springer},
  year = {2021},
  url = {https://doi.org/10.1007/978-3-030-86982-3\_8},
  doi = {10.1007/978-3-030-86982-3\_8},
  timestamp = {Tue, 05 Oct 2021 10:03:08 +0200},
  keywords = {conf},
}

Graph-Based Representation and Reasoning - 26th Int. Conf. on Conceptual Structures, ICCS 2021, Proceedings

T. Braun, M. Gehrke, T. Hanika, N. Hernandez (eds.), Springer (2021).

doi Bibtex

@proceedings{DBLP:conf/iccs/2021,
  editor = {Braun, Tanya and Gehrke, Marcel and Hanika, Tom and Hernandez, Nathalie},
  title = {Graph-Based Representation and Reasoning - 26th
                    Int. Conf.  on Conceptual Structures, {ICCS} 2021,
                    Proceedings},
  series = {LNCS},
  volume = {12879},
  publisher = {Springer},
  year = {2021},
  url = {https://doi.org/10.1007/978-3-030-86982-3},
  doi = {10.1007/978-3-030-86982-3},
  isbn = {978-3-030-86981-6},
  timestamp = {Tue, 21 Sep 2021 19:14:09 +0200},
  biburl = {https://dblp.org/rec/conf/iccs/2021.bib},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  keywords = {proc,selected},
}

2020

Daniel Borchmann, Tom Hanika, Sergei Obiedkov

Probably approximately correct learning of Horn envelopes from queries

Discrete Applied Mathematics 273 (2020), 30 - 42.

doi Bibtex

@article{pacexp,
  author = {Borchmann, Daniel and Hanika, Tom and Obiedkov, Sergei},
  biburl = {https://www.bibsonomy.org/bibtex/2be121e13826f0ad3699d2629f08cc77f/tomhanika},
  doi = {10.1016/j.dam.2019.02.036},
  issn = {0166-218X},
  journal = {Discrete Applied Mathematics},
  keywords = {journal,selected},
  pages = {30 - 42},
  timestamp = {2020-02-21T11:59:05.000+0100},
  title = {Probably approximately correct learning of Horn
                    envelopes from queries},
  url = {http://www.sciencedirect.com/science/article/pii/S0166218X19301295},
  volume = {273},
  year = {2020},
}

Maximilian Stubbemann, Tom Hanika, Gerd Stumme

Orometric Methods in Bounded Metric Data

In: 18th Int. Symposium on Intelligent Data Analysis, IDA Proceedings, M. Berthold, A. Feelders, G. Krempl (eds.), 496–508. Springer (2020).

doi Bibtex

@inproceedings{oro,
  author = {Stubbemann, Maximilian and Hanika, Tom and Stumme, Gerd},
  editor = {Berthold, Michael R. and Feelders, Ad and Krempl, Georg},
  title = {Orometric Methods in Bounded Metric Data},
  booktitle = {18th Int. Symposium on Intelligent Data Analysis,
                    {IDA} Proceedings},
  series = {LNCS},
  volume = {12080},
  pages = {496--508},
  publisher = {Springer},
  year = {2020},
  doi = {10.1007/978-3-030-44584-3\_39},
  timestamp = {Wed, 22 Apr 2020 13:56:11 +0200},
  keywords = {conf},
}

Maximilian Felde, Tom Hanika, Gerd Stumme

Null Models for Formal Contexts

Information 11 (2020), no. 3, 135.

doi Bibtex

@article{info11030135,
  author = {Felde, Maximilian and Hanika, Tom and Stumme, Gerd},
  title = {Null Models for Formal Contexts},
  journal = {Information},
  volume = {11},
  year = {2020},
  number = {3},
  pages = {135},
  article-number = {135},
  url = {https://www.mdpi.com/2078-2489/11/3/135},
  issn = {2078-2489},
  keywords = {journal},
  doi = {10.3390/info11030135},
}

2019

T. Hanika, M. Marx, G. Stumme

Discovering Implicational Knowledge in Wikidata

In: Formal Concept Analysis - 15th Int. Conf., ICFCA 2019, Proceedings, D. Cristea, F. Le Ber, B. Sertkaya (eds.), 315–323. Springer (2019).

doi Bibtex

@inproceedings{discovering,
  author = {Hanika, T. and Marx, M. and Stumme, G.},
  title = {Discovering Implicational Knowledge in Wikidata},
  booktitle = {Formal Concept Analysis - 15th Int. Conf., {ICFCA}
                    2019, Proceedings},
  pages = {315--323},
  year = {2019},
  crossref = {DBLP:conf/icfca/2019},
  url = {https://doi.org/10.1007/978-3-030-21462-3\_21},
  doi = {10.1007/978-3-030-21462-3\_21},
  timestamp = {Fri, 14 Jun 2019 10:43:04 +0200},
  biburl = {https://dblp.org/rec/bib/conf/icfca/Hanika0S19},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  editor = {Cristea, Diana and Le Ber, Florence and Sertkaya, Baris},
  publisher = {Springer},
  keywords = {conf,selected},
}

Maximilian Felde, Tom Hanika

Formal Context Generation Using Dirichlet Distributions

In: 24th Int. Conf. on Conceptual Structures, ICCS 2019, Proceedings, (eds.), 57–71. (2019).

doi Bibtex

@inproceedings{dirichlet,
  author = {Felde, Maximilian and Hanika, Tom},
  title = {Formal Context Generation Using Dirichlet
                    Distributions},
  booktitle = {24th Int. Conf. on Conceptual Structures, {ICCS}
                    2019, Proceedings},
  pages = {57--71},
  year = {2019},
  crossref = {conf/iccs/2019},
  url = {https://doi.org/10.1007/978-3-030-23182-8\_5},
  doi = {10.1007/978-3-030-23182-8\_5},
  timestamp = {Tue, 25 Jun 2019 14:43:17 +0200},
  biburl = {https://dblp.org/rec/bib/conf/iccs/FeldeH19},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  keywords = {conf},
}

Tom Hanika, Maren Koyda, Gerd Stumme

Relevant Attributes in Formal Contexts

In: Graph-Based Representation and Reasoning, ICCS 2019, Proceedings, (eds.), 102–116. (2019).

doi Bibtex

@inproceedings{relevant,
  author = {Hanika, Tom and Koyda, Maren and Stumme, Gerd},
  title = {Relevant Attributes in Formal Contexts},
  booktitle = {Graph-Based Representation and Reasoning, {ICCS}
                    2019, Proceedings},
  pages = {102--116},
  year = {2019},
  crossref = {conf/iccs/2019},
  url = {https://doi.org/10.1007/978-3-030-23182-8\_8},
  doi = {10.1007/978-3-030-23182-8\_8},
  timestamp = {Tue, 25 Jun 2019 14:43:17 +0200},
  biburl = {https://dblp.org/rec/bib/conf/iccs/HanikaKS19},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  keywords = {conf,selected},
}

Dominik Dürrschnabel, Tom Hanika, Gerd Stumme

DimDraw - A Novel Tool for Drawing Concept Lattices

In: Sup. Proceedings of ICFCA 2019 Conf., D. Cristea, F. Ber, R. Missaoui, L. Kwuida, B. Sertkaya (eds.), 60–64. CEUR-WS.org (2019).

URL Bibtex

@inproceedings{durrschnabel2019dimdraw,
  author = {D{\"{u}}rrschnabel, Dominik and Hanika, Tom and Stumme, Gerd},
  title = {DimDraw - {A} Novel Tool for Drawing Concept
                    Lattices},
  booktitle = {Sup. Proceedings of {ICFCA} 2019 Conf.},
  pages = {60--64},
  year = {2019},
  url = {http://ceur-ws.org/Vol-2378/shortAT6.pdf},
  timestamp = {Fri, 30 Aug 2019 13:15:06 +0200},
  biburl = {https://dblp.org/rec/bib/conf/icfca/DurrschnabelHS19},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  keywords = {workshop},
  editor = {Cristea, Diana and Ber, Florence Le and Missaoui, Rokia and Kwuida, L{\'{e}}onard and Sertkaya, Baris},
  volume = {2378},
  publisher = {CEUR-WS.org},
}

Bastian Schaefermeier, Tom Hanika, Gerd Stumme

Distances for wifi based topological indoor mapping

In: Proceedings of the 16th EAI Int. Conf. on Mobile and Ubiquitous Systems: Computing, Networking and Services, (eds.), . ACM (2019).

doi Bibtex

@inproceedings{schafermeier2018distances,
  added-at = {2020-02-06T17:52:18.000+0100},
  author = {Schaefermeier, Bastian and Hanika, Tom and Stumme, Gerd},
  biburl = {https://www.bibsonomy.org/bibtex/27d27117f9e7285f489478f021ac2c35c/tomhanika},
  booktitle = {Proceedings of the 16th {EAI} Int. Conf. on Mobile
                    and Ubiquitous Systems: Computing, Networking and
                    Services},
  doi = {10.1145/3360774.3360780},
  interhash = {3259884f9fbf8ba2968a78d514d3b6fc},
  intrahash = {7d27117f9e7285f489478f021ac2c35c},
  keywords = {conf},
  month = nov,
  publisher = {{ACM}},
  timestamp = {2020-02-06T17:52:18.000+0100},
  title = {Distances for wifi based topological indoor mapping},
  url = {https://doi.org/10.1145%2F3360774.3360780},
  year = {2019},
}

Tom Hanika, Mark Kibanov, Jonathan Kropf, Stefan Laser

Ich denke, es ist wichtig zu verstehen, warum die Netzwerkanalyse jetzt populär und besonders interessant für die Forschung geworden ist.

In: Digitale Bewertungspraktiken, J. Kropf, S. Laser (eds.), 165–188. Springer (2019).

doi Bibtex

@incollection{denken,
  added-at = {2018-09-11T00:50:54.000+0200},
  author = {Hanika, Tom and Kibanov, Mark and Kropf, Jonathan and Laser, Stefan},
  booktitle = {Digitale Bewertungspraktiken},
  doi = {10.1007/978-3-658-21165-3_7},
  editor = {Kropf, Jonathan and Laser, Stefan},
  interhash = {02d2c9b081a27492e910548c3fed1888},
  intrahash = {1676016925aa18edb753d477bc8be2e9},
  keywords = {chapter},
  pages = {165--188},
  publisher = {Springer},
  timestamp = {2018-09-11T00:51:23.000+0200},
  title = {Ich denke, es ist wichtig zu verstehen, warum die
                    Netzwerkanalyse jetzt popul{\"a}r und besonders
                    interessant f{\"u}r die Forschung geworden ist.},
  year = {2019},
}

Tom Hanika, Johannes Hirth

Conexp-Clj - A Research Tool for FCA

In: ICFCA (Suppl.), D. Cristea, F. Ber, R. Missaoui, L. Kwuida, B. Sertkaya (eds.), 70-75. CEUR (2019).

URL Bibtex

@inproceedings{hirth,
  added-at = {2019-07-19T21:52:56.000+0200},
  author = {Hanika, Tom and Hirth, Johannes},
  biburl = {https://www.bibsonomy.org/bibtex/2432006ec0f26e5c6c5e26900faadc7e3/tomhanika},
  booktitle = {ICFCA (Suppl.)},
  editor = {Cristea, Diana and Ber, Florence Le and Missaoui, Rokia and Kwuida, Léonard and Sertkaya, Baris},
  url = {https://ceur-ws.org/Vol-2378/shortAT8.pdf},
  interhash = {6e7358098278bfc44f5c07cae36aee6f},
  intrahash = {432006ec0f26e5c6c5e26900faadc7e3},
  keywords = {workshop},
  pages = {70-75},
  publisher = {CEUR},
  timestamp = {2019-07-19T21:52:56.000+0200},
  title = {Conexp-Clj - A Research Tool for FCA},
  volume = {2378},
  year = {2019},
}

Tom Hanika

Discovering Knowledge in Bipartite Graphs with Formal Concept Analysis

University of Kassel, Germany (2019).

URL Bibtex

@phdthesis{DBLP:phd/dnb/Hanika19,
  author = {Hanika, Tom},
  title = {Discovering Knowledge in Bipartite Graphs with Formal Concept Analysis},
  school = {University of Kassel, Germany},
  year = {2019},
  url = {https://kobra.uni-kassel.de/handle/123456789/11077},
  urn = {urn:nbn:de:101:1-2019031412313069321648},
  timestamp = {Sat, 17 Jul 2021 09:03:22 +0200},
  biburl = {https://dblp.org/rec/phd/dnb/Hanika19.bib},
  bibsource = {dblp computer science bibliography, https://dblp.org},
}

2018

S. Doerfel, T. Hanika, G. Stumme

Clones in Graphs

In: Foundations of Intelligent Systems - 24th Int. Symposium, ISMIS 2018, M. Ceci, N. Japkowicz, J. Liu, G. Papadopoulos, Z. Ras (eds.), 56-66. Springer (2018).

doi Bibtex

@inproceedings{clones,
  added-at = {2018-10-23T00:00:00.000+0200},
  author = {Doerfel, S. and Hanika, T. and Stumme, G.},
  biburl = {https://www.bibsonomy.org/bibtex/2e347f5fa3a991bc49dc2d5f1c1556694/dblp},
  booktitle = {Foundations of Intelligent Systems - 24th
                    Int. Symposium, {ISMIS} 2018},
  crossref = {conf/ismis/2018},
  doi = {10.1007/978-3-030-01851-1_6},
  editor = {Ceci, M. and Japkowicz, N. and Liu, J. and Papadopoulos, G. A. and Ras, Z. W.},
  isbn = {978-3-030-01851-1},
  keywords = {conf},
  pages = {56-66},
  publisher = {Springer},
  series = {LNCS},
  timestamp = {2018-10-24T11:38:37.000+0200},
  title = {Clones in Graphs},
  volume = {11177},
  year = {2018},
}

Tom Hanika, Jens Zumbrägel

Towards Collaborative Conceptual Exploration

In: Graph-Based Representation and Reasoning, ICCS 2018, Proceedings, P. Chapman, D. Endres, N. Pernelle (eds.), 120-134. Springer (2018).

doi Bibtex

@inproceedings{colab,
  added-at = {2018-06-23T06:48:36.000+0200},
  author = {Hanika, Tom and Zumbrägel, Jens},
  biburl = {https://www.bibsonomy.org/bibtex/23a36f6cc1814bf23c75d8d37a2b16024/tomhanika},
  booktitle = {Graph-Based Representation and Reasoning, {ICCS}
                    2018, Proceedings},
  crossref = {conf/iccs/2018},
  doi = {10.1007/978-3-319-91379-7_10},
  editor = {Chapman, Peter and Endres, Dominik and Pernelle, Nathalie},
  interhash = {187bd35285a21769d211f62ee468081d},
  intrahash = {3a36f6cc1814bf23c75d8d37a2b16024},
  isbn = {978-3-319-91379-7},
  keywords = {conf},
  pages = {120-134},
  publisher = {Springer},
  series = {LNCS},
  timestamp = {2018-09-25T10:39:33.000+0200},
  title = {Towards Collaborative Conceptual Exploration},
  url = {http://dblp.uni-trier.de/db/conf/iccs/iccs2018.html#HanikaZ18},
  volume = {10872},
  year = {2018},
}

2017

D. Borchmann, T. Hanika

Individuality in Social Networks

In: Formal Concept Analysis of Social Networks, R. Missaoui, S. Kuznetsov, S. Obiedkov (eds.), 19–40. Springer (2017).

doi Bibtex

@incollection{individ,
  author = {Borchmann, D. and Hanika, T.},
  biburl = {https://www.bibsonomy.org/bibtex/22c7e6be27e1bee2ca4fc5c1fff91fdac/tomhanika},
  booktitle = {Formal Concept Analysis of Social Networks},
  editor = {Missaoui, R. and Kuznetsov, S. O. and Obiedkov, S.},
  interhash = {8b221d4ec57f02f883afc5242e49354b},
  intrahash = {2c7e6be27e1bee2ca4fc5c1fff91fdac},
  isbn = {978-3-319-64167-6},
  keywords = {chapter,selected},
  pages = {19--40},
  publisher = {Springer},
  timestamp = {2018-01-25T13:22:39.000+0100},
  title = {Individuality in Social Networks},
  year = {2017},
  doi = {10.1007/978-3-319-64167-6_2},
}

Daniel Borchmann, Tom Hanika, Sergei Obiedkov

On the Usability of Probably Approximately Correct Implication Bases.

In: Formal Concept Analysis - 14th Int. Conf., ICFCA 2017, Proceedings, K. Bertet, D. Borchmann, P. Cellier, S. Ferré (eds.), 72-88. Springer (2017).

doi Bibtex

@inproceedings{pacbase,
  author = {Borchmann, Daniel and Hanika, Tom and Obiedkov, Sergei},
  biburl = {https://www.bibsonomy.org/bibtex/2e7313c94e439b5a7b1c9e8d9074d6bf5/tomhanika},
  booktitle = {Formal Concept Analysis - 14th Int. Conf., {ICFCA}
                    2017, Proceedings},
  editor = {Bertet, Karell and Borchmann, Daniel and Cellier, Peggy and Ferré, Sébastien},
  crossref = {DBLP:conf/icfca/2017},
  doi = {10.1007/978-3-319-59271-8_5},
  isbn = {978-3-319-59271-8},
  keywords = {conf},
  pages = {72-88},
  publisher = {Springer},
  series = {LNCS},
  timestamp = {2018-01-25T13:22:50.000+0100},
  title = {On the Usability of Probably Approximately Correct
                    Implication Bases.},
  volume = {10308},
  year = {2017},
}

2016

Martin Atzmueller, Tom Hanika, Gerd Stumme, Richard Schaller, Bernd Ludwig

Social event network analysis: Structure, preferences, and reality

In: 2016 IEEE/ACM Int. Conf. on Advances in Social Networks Analysis and Mining, R. Kumar, J. Caverlee, H. Tong (eds.), 613–620. IEEE Computer Society (2016).

doi Bibtex

@inproceedings{langeNachtFCA,
  author = {Atzmueller, Martin and Hanika, Tom and Stumme, Gerd and Schaller, Richard and Ludwig, Bernd},
  title = {Social event network analysis: Structure,
                    preferences, and reality},
  booktitle = {2016 {IEEE/ACM} Int. Conf. on Advances in Social
                    Networks Analysis and Mining},
  pages = {613--620},
  year = {2016},
  crossref = {DBLP:conf/asunam/2016},
  doi = {10.1109/ASONAM.2016.7752299},
  timestamp = {Wed, 16 Oct 2019 14:14:53 +0200},
  keywords = {conf,select},
  publisher = {IEEE Computer Society},
  editor = {Kumar, Ravi and Caverlee, James and Tong, Hanghang}
}

Daniel Borchmann, Tom Hanika

Some Experimental Results on Randomly Generating Formal Contexts

In: 13th Int. Conf. on Concept Lattices and Their Applications, M. Huchard, S. Kuznetsov (eds.), 57–69. CEUR-WS.org (2016).

URL Bibtex

@inproceedings{stego,
  author = {Borchmann, Daniel and Hanika, Tom},
  title = {Some Experimental Results on Randomly Generating
                    Formal Contexts},
  booktitle = {13th Int. Conf. on Concept Lattices and Their
                    Applications},
  pages = {57--69},
  year = {2016},
  crossref = {DBLP:conf/cla/2016},
  url = {http://ceur-ws.org/Vol-1624/paper5.pdf},
  timestamp = {Tue, 28 May 2019 16:23:31 +0200},
  biburl = {https://dblp.org/rec/bib/conf/cla/BorchmannH16},
  bibsource = {dblp computer science bibliography,
                    https://dblp.org},
  publisher = {CEUR-WS.org},
  volume = {1624},
  editor = {Huchard, Marianne and Kuznetsov, Sergei},
  keywords = {conf},
}