Marcel Gehrke

- Research Assistant -




Curriculum Vitae

I moved to the University Hamburg.You can find me here.

  • Since November 2022 - Principal Investigator in the AnoMed project
  • October 2022 - March 2024 Responsible for the research data management at the University of Lübeck
  • December 2021 - March 2024 PostDoc at the Institute for Informationsystems at the Universität zu Lübeck
  • April 2017 - December 2021 - Research Assistant at the Institute for Informationsystems at the Universität zu Lübeck
  • September 2015- March 2017 Consultant at Avanade Deutschland GmbH

Research Interests

  • Machine Learning
  • Probabilistic Graphical Models
  • Lifted Inference
  • Temporal and Relational Models
  • Privacy
  • Causality
  • Text Understanding

Lectures

Research Activities

Organisation

Tutorials 

Review Activities

  • Conferences: AAAI, AISTATS, KR, UAI, ICCS , ICBK 
  • Journals: KAIS, AMAI

Student Projects

  • Moritz Hoffmann: Preparation of the project code of LJT and LDJT; see LJT Implementation und LDJT Implementation.
  • Tristan Potten: 3D -printing of objects from MRT scans. As well as display and real-time alignment of virtual objects by external position sensors, including the display of additional information.
  • Simon Schiff:  Enriching of synthesized relational patient data with time series data

Publications

2024

Malte Luttermann, Johann Machemer, and Marcel Gehrke,
Efficient Detection of Commutative Factors in Factor Graphs, PMLR, 092024.
Weblink: https://proceedings.mlr.press/v246/luttermann24a.html
File: Dateilink
Bibtex: BibTeX
@inproceedings{LuMaGe24b,
	author    = {Malte Luttermann and Johann Machemer and Marcel Gehrke},
	title     = {{Efficient Detection of Commutative Factors in Factor Graphs}},
	booktitle = {Proceedings of the Twelfth International Conference on Probabilistic Graphical Models (PGM-2024)},
	year      = {2024},
	volume    = {246},
	pages     = {38--56},
	publisher = {{PMLR}},
	url       = {https://proceedings.mlr.press/v246/luttermann24a.html},
}
Malte Luttermann, Johann Machemer, and Marcel Gehrke,
Efficient Detection of Exchangeable Factors in Factor Graphs, in Proceedings of the Thirty-Seventh International FLAIRS Conference (FLAIRS-24) , Florida Online Journals, 052024.
Weblink: https://journals.flvc.org/FLAIRS/article/view/135518
File: Dateilink
Bibtex: BibTeX
@inproceedings{LuMaGe24,
  author    = {Malte Luttermann and Johann Machemer and Marcel Gehrke},
  title     = {Efficient Detection of Exchangeable Factors in Factor Graphs},
  booktitle = {Proceedings of the Thirty-Seventh International FLAIRS Conference (FLAIRS-24)},
  year      = {2024},
  volume    = {37},
  publisher = {Florida Online Journals},
  url       = {https://journals.flvc.org/FLAIRS/article/view/135518},
}
Malte Luttermann, Mattis Hartwig, Tanya Braun, Ralf Möller, and Marcel Gehrke,
Lifted Causal Inference in Relational Domains, PMLR, 042024.
Weblink: https://proceedings.mlr.press/v236/luttermann24a.html
File: Dateilink
Bibtex: BibTeX
@inproceedings{LuHaBrMoGe24,
  author    = {Malte Luttermann and Mattis Hartwig and Tanya Braun and Ralf Möller and Marcel Gehrke},
  title     = {Lifted Causal Inference in Relational Domains},
  booktitle = {Proceedings of the Third Conference on Causal Learning and Reasoning (CLeaR-24)},
  year      = {2024},
  volume    = {236},
  pages     = {827--842},
  publisher = {PMLR},
  url       = {https://proceedings.mlr.press/v236/luttermann24a.html},
}
Malte Luttermann, Tanya Braun, Ralf Möller, and Marcel Gehrke,
Colour Passing Revisited: Lifted Model Construction with Commutative Factors, in Proceedings of the Thirty-Eighth AAAI Conference on Artificial Intelligence (AAAI-24) , AAAI Press, 022024.
DOI:https://doi.org/10.1609/aaai.v38i18.30034
File: Dateilink
Bibtex: BibTeX
@inproceedings{LuBrMoGe24,
    author    = {Malte Luttermann and Tanya Braun and Ralf M\"oller and Marcel Gehrke},
    title     = {{Colour Passing Revisited: Lifted Model Construction with Commutative Factors}},
    booktitle = {Proceedings of the Thirty-Eighth AAAI Conference on Artificial Intelligence     (AAAI-24)},
    year      = {2024},
    volume    = {38},
    pages     = {20500--20507},
    publisher = {{AAAI} Press},
    doi       = {https://doi.org/10.1609/aaai.v38i18.30034},
}
Magnus Bender, Tanya Braun, Ralf Möller, and Marcel Gehrke,
ReFrESH – Relation-preserving Feedback-reliant Enhancement of Subjective Content Descriptions, in 18th IEEE International Conference on Semantic Computing, (ICSC 2024), February 5-7 , IEEE, 2024. pp. 17-24.
DOI:10.1109/ICSC59802.2024.00010
File: Dateilink
Bibtex: BibTeX
@INPROCEEDINGS{BeBrMoGe,
author ={Magnus Bender and Tanya Braun and Ralf M\"oller and Marcel Gehrke},
title ={ReFrESH – Relation-preserving Feedback-reliant Enhancement of Subjective Content Descriptions},
booktitle ={18th {IEEE} International Conference on Semantic Computing, ({ICSC} 2024), February 5-7},
year ={2024},
pages = {17--24},
publisher = {{IEEE}},
url = {https://dx.doi.org/10.1109/ICSC59802.2024.00010}
}
Magnus Bender, Tanya Braun, Ralf Möller, and Marcel Gehrke,
Unsupervised Estimation of Subjective Content Descriptions in an Information System, International Journal of Semantic Computing , vol. 18, no. 1, 2024.
DOI:10.1142/S1793351X24410034
File: Dateilink
Bibtex: BibTeX
@article{BeBrMoGe24,
author={Magnus Bender and Tanya Braun and Ralf M\"oller and Marcel Gehrke},
title={Unsupervised Estimation of Subjective Content Descriptions in an Information System},
journal = {International Journal of Semantic Computing},
volume= {18},
number={1},
pages= {},
year={2024},
doi  = {}
}

2023

Malte Luttermann, Ralf Möller, and Marcel Gehrke,
Lifting Factor Graphs with Some Unknown Factors, in Proceedings of the Seventeenth European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (ECSQARU-23) , Springer, Nov.2023. pp. 337--347.
DOI:https://doi.org/10.1007/978-3-031-45608-4_25
File: Dateilink
Bibtex: BibTeX
@inproceedings{LuMoGe23,
  author    = {Malte Luttermann and Ralf Möller and Marcel Gehrke},
  title     = {Lifting Factor Graphs with Some Unknown Factors},
  booktitle = {Proceedings of the Seventeenth European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (ECSQARU-23)},
  year      = {2023},
  volume    = {14294},
  pages     = {337--347},
  publisher = {Springer},
  doi       = {https://doi.org/10.1007/978-3-031-45608-4_25},
}
Marcel Gehrke,
Dissertation Abstract: Taming Exact Inference in Temporal Probabilistic Relational Models, KI-Künstliche Intelligenz , pp. 1--6, 09 2023. Springer.
DOI:10.1007/s13218-023-00813-w
File: s13218-023-00813-w
Bibtex: BibTeX
@article{Geh,
author={Marcel Gehrke},
title={Dissertation Abstract: Taming Exact Inference in Temporal Probabilistic Relational Models},
journal={KI-K{\"u}nstliche Intelligenz},
publisher={Springer}
volume= {},
number={},
pages= {1--6},
year={2023},
url = {https://doi.org/10.1007/s13218-023-00813-w},
doi  = {10.1007/s13218-023-00813-w}
}
Magnus Bender, Kira Schwandt, Ralf Möller, and Marcel Gehrke,
FrESH – Feedback-reliant Enhancement of Subjective Content Descriptions by Humans, in Proceedings of the Workshop on Humanities-Centred Artificial Intelligence (CHAI 2023) , CEUR Workshop Proceedings, 2023. pp. 15--24.
File: paper3.pdf
Bibtex: BibTeX
@InProceedings{BeSchMoGe,
  author    = {Magnus Bender and Kira Schwandt and Ralf M\"oller and Marcel Gehrke},
  booktitle = {Proceedings of the Workshop on Humanities-Centred Artificial Intelligence (CHAI 2023)},
  date      = {2023-09-26},
  title     = {FrESH – Feedback-reliant Enhancement of Subjective Content Descriptions by Humans},
  pages     = {15--24},
  publisher = {CEUR Workshop Proceedings},
  url ={https://ceur-ws.org/Vol-3580/paper3.pdf},
}
Magnus Bender, Tanya Braun, Ralf Möller, and Marcel Gehrke,
LESS is More: LEan Computing for Selective Summaries, in KI 2023: Advances in Artificial Intelligence , Springer Nature Switzerland, 2023. pp. 1--14.
DOI:10.1007/978-3-031-42608-7_1
File: Dateilink
Bibtex: BibTeX
@InProceedings{BeBrMoGe23c,
author={Magnus Bender and Tanya Braun and Ralf M\"oller and Marcel Gehrke},
title={LESS is More: LEan Computing for Selective Summaries},
journal = {International Journal of Semantic Computing},
booktitle= {KI 2023: Advances in Artificial Intelligence},
publisher= {Springer Nature Switzerland},
year={2023},
doi ={https://doi.org/10.1007/978-3-031-42608-7_1},
pages={1--14},
}
Nadja Redzuan, Marcel Gehrke, Ralf Möller, and Tanya Braun,
On Domain-specific Topic Modelling Using the Case of a Humanities Journal, in Proceedings of the Workshop on Humanities-Centred Artificial Intelligence (CHAI 2023) , CEUR Workshop Proceedings, 2023.
Bibtex: BibTeX
@InProceedings{ReGeMoBr,
  author    = {Nadja Redzuan and Marcel Gehrke and Ralf M\"oller and Tanya Braun},
  booktitle = {Proceedings of the Workshop on Humanities-Centred Artificial Intelligence (CHAI 2023)},
  date      = {2023-09-26},
  title     = {On Domain-specific Topic Modelling Using the Case of a Humanities Journal},
  pages     = {},
  publisher = {CEUR Workshop Proceedings},
  url = {},
}
Florian Andreas Marwitz, Ralf Möller, and Marcel Gehrke,
PETS: Predicting Efficiently using Temporal Symmetries in Temporal PGMs, in Proceedings of the Seventeenth European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (ECSQARU-23) , Springer, 2023.
File: Dateilink
Bibtex: BibTeX
@inproceedings{MaMoGe23,
    author    = {Florian Andreas Marwitz and Ralf M\"oller and Marcel Gehrke},
    title     = {{ PETS: Predicting Efficiently using Temporal Symmetries in Temporal PGMs}},
    booktitle = {Proceedings of the Seventeenth European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (ECSQARU-23)},
    year      = {2023},
    pages     = {},
    publisher = {Springer},
}
Magnus Bender, Tanya Braun, Ralf Möller, and Marcel Gehrke,
Unsupervised Estimation of Subjective Content Descriptions, in 17th IEEE International Conference on Semantic Computing, (ICSC 2023), February 1-3 , IEEE, 2023.
DOI:10.1109/ICSC56153.2023.00052
File: Dateilink
Bibtex: BibTeX
@INPROCEEDINGS{BeBrMoGe,
author ={Magnus Bender and Tanya Braun and Ralf M\"oller and Marcel Gehrke},
title ={Unsupervised Estimation of Subjective Content Descriptions},
booktitle ={17th {IEEE} International Conference on Semantic Computing, ({ICSC} 2023), February 1-3},
year ={2023},
pages = {},
publisher = {{IEEE}},
doi = {https://dx.doi.org/10.1109/ICSC56153.2023.00052},
keywords ={Subjective Content Descriptions; Text Mining;Text Annotation;Sentence clustering},
}

2022

Tanya Braun, and Marcel Gehrke,
Explainable and Explorable Decision Support, in Proceedings of the 27th International Conference on Conceptual Structures (ICCS 2022) , 2022.
DOI:https://dx.doi.org/10.1007/978-3-031-16663-1_8
File: 978-3-031-16663-1_8
Bibtex: BibTeX
@inproceedings{BraGe22,
author ={Tanya Braun and Marcel Gehrke},
title ={Explainable and Explorable Decision Support},
booktitle ={Proceedings of the 27th International Conference on Conceptual Structures (ICCS 2022)},
year ={2022},
url = {https://link.springer.com/chapter/10.1007/978-3-031-16663-1_8},
doi = {https://dx.doi.org/10.1007/978-3-031-16663-1_8}
}
Tanya Braun, Marcel Gehrke, Florian Lau, and Ralf Möller,
Lifting in Multi-agent Systems under Uncertainty, in 38th Conference on Uncertainty in Artificial Intelligence (UAI 2022) , 2022. pp. 233--243.
File: braun22a.html
Bibtex: BibTeX
@inproceedings{BraGeLaMo22,
author ={Tanya Braun and Marcel Gehrke and Florian Lau and Ralf M\"oller},
title ={Lifting in Multi-agent Systems under Uncertainty},
booktitle ={38th Conference on Uncertainty in Artificial Intelligence (UAI 2022)},
year ={2022},
pages = {233--243},
url = {https://proceedings.mlr.press/v180/braun22a.html}
}

2021

Marcel Gehrke,
On the Complexity and Completeness of the Lifted Dynamic Junction Tree Algorithm, in 10th International Workshop on Statistical Relational AI at the 1st International Joint Conference on Learning and Reasoning , 2021.
File: 2110.09197
Bibtex: BibTeX
@inproceedings{Geh21,
  author = {Marcel Gehrke}, 
  title = {{On the Complexity and Completeness of the Lifted Dynamic Junction Tree Algorithm}}, 
  booktitle = {10th International Workshop on Statistical Relational AI at the 1st International Joint Conference on Learning and Reasoning}, 
  year = {2021},
  url = {https://arxiv.org/abs/2110.09197}
}
Marcel Gehrke,
Taming Exact Inference in Temporal Probabilistic Relational Models, University of Lübeck, 2021.
Bibtex: BibTeX
@phdthesis{Geh21a,
  author = "Marcel Gehrke",
  title = "{Taming Exact Inference in Temporal Probabilistic Relational Models}",
  school = "University of L\"ubeck",
  year = "2021",
  note = "PhD thesis"
}
Magnus Bender, Tanya Braun, Marcel Gehrke, Felix Kuhr, Ralf Möller, and Simon Schiff,
Identifying Subjective Content Descriptions Among Texts, in 15th IEEE International Conference on Semantic Computing, (ICSC 2021), Laguna Hills, CA, USA, January 27-29 , IEEE, 2021. pp. 9--16.
DOI:10.1109/ICSC50631.2021.00008
File: Dateilink
Bibtex: BibTeX
@inproceedings{BenBrGeKuScMo21b,
author={Magnus Bender and Tanya Braun and Marcel Gehrke and Felix Kuhr and Ralf M\"oller and Simon Schiff},
title={{Identifying Subjective Content Descriptions Among Texts}},
booktitle = {15th {IEEE} International Conference on Semantic Computing, (ICSC 2021), Laguna Hills, CA, USA, January 27-29},
year={2021},
pages= {9--16},
publisher = {IEEE},
doi  = {https://doi.org/10.1109/ICSC50631.2021.00008},
keywords={Subjective Content Descriptions; Text Mining}
}
Magnus Bender, Tanya Braun, Marcel Gehrke, Felix Kuhr, Ralf Möller, and Simon Schiff,
Identifying and Translating Subjective Content Descriptions Among Texts, International Journal of Semantic Computing , vol. 15, no. 4, pp. 461--485, 2021.
DOI:10.1142/S1793351X21400122
File: Dateilink
Bibtex: BibTeX
@article{BenBrGeKuScMo21b,
author={Magnus Bender and Tanya Braun and Marcel Gehrke and Felix Kuhr and Ralf M\"oller and Simon Schiff},
title={Identifying and Translating Subjective Content Descriptions Among Texts},
journal = {International Journal of Semantic Computing},
volume= {15},
number={4},
pages= {461--485},
year={2021},
doi  = {https://dx.doi.org/10.1142/S1793351X21400122}
}
Tanya Braun, Marcel Gehrke, Tom Hanika, and Nathalie Hernandez (Eds.),
ICCS-21 Proceedings of the 26th International Conference on Conceptual Structures., .... Springer, 2021.
DOI:https://doi.org/10.1007/978-3-030-86982-3
Bibtex: BibTeX
@book{BraGeHaHe21, 
  author = {Tanya Braun and Marcel Gehrke and Tom Hanika and Nathalie Hernandez (Eds.)},
  title = {ICCS-21 Proceedings of the 26th International Conference on Conceptual Structures},
  year = {2021},
  publisher = {Springer},
  doi = {https://doi.org/10.1007/978-3-030-86982-3}
}

2020

Marcel Gehrke, Tanya Braun, and Simon Polovina,
Restricting the Maximum Number of Actions for Decision Support under Uncertainty, in Proceedings of the 25th International Conference on Conceptual Structures (ICCS 2020) , 092020.
DOI:https://doi.org/10.1007/978-3-030-57855-8_11
Bibtex: BibTeX
@inproceedings{GehBrPo20,
  author = {Marcel Gehrke and Tanya Braun and Simon Polovina}, 
  title = {{Restricting the Maximum Number of Actions for Decision Support under Uncertainty}}, 
  booktitle = {Proceedings of the 25th International Conference on Conceptual Structures (ICCS 2020)}, 
  year = {2020},
  doi = {https://doi.org/10.1007/978-3-030-57855-8_11}
}
Stefan Lüdtke, Marcel Gehrke, Tanya Braun, Ralf Möller, and Thomas Kirste,
Lifted Marginal Filtering for Asymmetric Models by Clustering-based Merging, in Proceedings of the 24th European Conference on Artificial Intelligence (ECAI 2020) , IOS Press, 082020. pp. 2608--2615.
DOI:https://doi.org/10.3233/FAIA200397
Bibtex: BibTeX
@inproceedings{LueGeBrMoKi20,
  author = {Stefan L\"udtke and Marcel Gehrke and Tanya Braun and Ralf M\"oller and Thomas Kirste}, 
  title = {{Lifted Marginal Filtering for Asymmetric Models by Clustering-based Merging}}, 
  booktitle = {Proceedings of the 24th European Conference on Artificial Intelligence (ECAI 2020)}, 
  year = {2020},
  doi = {https://doi.org/10.3233/FAIA200397}
}
Marcel Gehrke, Ralf Möller, and Tanya Braun,
Taming Reasoning in Temporal Probabilistic Relational Models, in Proceedings of the 24th European Conference on Artificial Intelligence (ECAI 2020) , IOS Press, 082020. pp. 2592--2599.
DOI:https://doi.org/10.3233/FAIA200395
File: 1911.07040
Bibtex: BibTeX
@inproceedings{GehMoBr20,
  author = {Marcel Gehrke and Ralf M\"oller and Tanya Braun}, 
  title = {{Taming Reasoning in Temporal Probabilistic Relational Models}}, 
  booktitle = {Proceedings of the 24th European Conference on Artificial Intelligence (ECAI 2020)}, 
  year = {2020},
  doi = {https://doi.org/10.3233/FAIA200395}
}

2019

Marcel Gehrke, Tanya Braun, and Ralf Möller,
Efficient Multiple Query Answering in Switched Probabilistic Relational Models, in Proceedings of AI 2019: Advances in Artificial Intelligence (AI 2019) , Springer, Dec.2019. pp. 104--116.
DOI:https://doi.org/10.1007/978-3-030-35288-2_9
ISBN:978-3-030-35288-2
Bibtex: BibTeX
@inproceedings{GehBrMo19f,
  author = {Marcel Gehrke and Tanya Braun and Ralf M\"oller},
  title = {{Efficient Multiple Query Answering in Switched Probabilistic Relational Models}},
  Booktitle = {Proceedings of {AI} 2019: Advances in Artificial Intelligence ({AI} 2019)},
  series    = {Lecture Notes in Computer Science},
  volume    = {11919},
  pages     = {104--116},
  publisher = {Springer},
  year      = {2019},
  doi = {https://doi.org/10.1007/978-3-030-35288-2_9},
  isbn= {978-3-030-35288-2}
}
Mattis Hartwig, Marcel Gehrke, and Ralf Möller,
Approximate Query Answering in Complex Gaussian Mixture Models, in IEEE International Conference on Big Knowledge, (ICBK 2019), Beijing, China, November 10-11, 2019 , IEEE, Nov.2019. pp. 81--86.
File: ICBK.2019.00019
Bibtex: BibTeX
@inproceedings{HarGeMo19,
  title={{Approximate Query Answering in Complex Gaussian Mixture Models}},
  author = {Mattis Hartwig and Marcel Gehrke and Ralf M\"oller}, 
booktitle = {{IEEE} International Conference on Big Knowledge, (ICBK 2019), Beijing, China, November 10-11, 2019},
  year={2019},
  pages={81--86},
  publisher = {{IEEE}},
  url       = {https://doi.org/10.1109/ICBK.2019.00019},
  publisher = {IEEE}
}