ESC

Selected Publications

Journal Articles

  1. 2020
    Hahmann, T. (2020). CODI: A multidimensional theory of mereotopology with closure operations. Applied Ontology, 15(3), 251–311.
    DOI 
    @article{hahmann2020codi,
  author = {Hahmann, Torsten},
  title = {{CODI}: A multidimensional theory of mereotopology with closure operations},
  journal = {Applied Ontology},
  volume = {15},
  number = {3},
  pages = {251--311},
  year = {2020},
  doi = {10.3233/AO-200233}
}
  2. 2019
    Brodaric, B., Hahmann, T., & Grüninger, M. (2019). Water features and their parts. Applied Ontology, 14(1), 1–42.
    DOI 
    @article{brodaric2019water,
  author = {Brodaric, Boyan and Hahmann, Torsten and Grüninger, Michael},
  title = {Water features and their parts},
  journal = {Applied Ontology},
  volume = {14},
  number = {1},
  pages = {1--42},
  year = {2019},
  doi = {10.3233/AO-190205}
}
  3. 2018
    Hahmann, T., & Stephen, S. (2018). Using a hydro-reference ontology to provide improved computer-interpretable semantics for the groundwater markup language (GWML2). International Journal of Geographical Information Science, 32(6), 1138–1171.
    DOI 
    @article{hahmann2018gwml,
  author = {Hahmann, Torsten and Stephen, Shirly},
  title = {Using a hydro-reference ontology to provide improved computer-interpretable semantics for the groundwater markup language ({GWML2})},
  journal = {International Journal of Geographical Information Science},
  volume = {32},
  number = {6},
  pages = {1138--1171},
  year = {2018},
  doi = {10.1080/13658816.2018.1443751}
}

Conference and Workshop Papers

  1. 2026
    Zhang, Y., Moavenzadeh, S., Amjad, J., Apul, O., Barua, A., Evrendilek, F., Hahmann, T., Hettiarachchi, G., Hitzler, P., Kedrowski, D., Kilaru, V., Lashkari, P., Schweikert, K., Williams, A., & McGinty, H. (2026). CompTox Ontology: Leveraging Knowledge Graphs for PFAS Monitoring and Decision-Making. Proceedings of the ACM Web Conference 2026, 9352–9360.
    DOI Link Code 
    @inproceedings{zhang2026comptox,
  author = {Zhang, Yinglun and Moavenzadeh, Sonia and Amjad, Jarrar and Apul, Onur and Barua, Adrita and Evrendilek, Fatih and Hahmann, Torsten and Hettiarachchi, Ganga and Hitzler, Pascal and Kedrowski, David and Kilaru, Vasu and Lashkari, Prayas and Schweikert, Katrina and Williams, Antony and McGinty, Hande},
  title = {{CompTox} Ontology: Leveraging Knowledge Graphs for {PFAS} Monitoring and Decision-Making},
  booktitle = {Proceedings of the ACM Web Conference 2026},
  publisher = {Association for Computing Machinery},
  pages = {9352--9360},
  year = {2026},
  doi = {10.1145/3774904.3792985},
  url = {https://sawgraph.com/publications/CompTox_Ontology.pdf}
}
  2. 2025
    Reza, U., Pease, N., Wang, J., & Hahmann, T. (2025). AnNER: Supporting Efficient Entity Annotation and Review Workflows for Knowledge Graph Construction. Proceedings of the 13th Knowledge Capture Conference 2025, 52–55.
    DOI Code 
    @inproceedings{reza2025anner,
  author = {Reza, Umayer and Pease, Nicholas and Wang, Jinwu and Hahmann, Torsten},
  title = {{AnNER}: Supporting Efficient Entity Annotation and Review Workflows for Knowledge Graph Construction},
  booktitle = {Proceedings of the 13th Knowledge Capture Conference 2025},
  publisher = {Association for Computing Machinery},
  pages = {52--55},
  year = {2025},
  doi = {10.1145/3731443.3771347}
}
  3. 2025
    Hahmann, T., Schweikert, K., Stephen, S., & Kedrowski, D. (2025). ContaminOSO: Ontological Foundations and Design Choices for an Ontology for Environmental Contamination Data. Formal Ontology in Information Systems, 409, 284–298.
    DOI Code 
    @inproceedings{hahmann2025contaminoso,
  author = {Hahmann, Torsten and Schweikert, Katrina and Stephen, Shirly and Kedrowski, David},
  title = {{ContaminOSO}: Ontological Foundations and Design Choices for an Ontology for Environmental Contamination Data},
  booktitle = {Formal Ontology in Information Systems},
  series = {Frontiers in Artificial Intelligence and Applications},
  volume = {409},
  pages = {284--298},
  publisher = {IOS Press},
  year = {2025},
  doi = {10.3233/FAIA250501}
}
  4. 2025
    Schweikert, K., & Hahmann, T. (2025). An Ontology Design Pattern for Industry Classification in the Facilities and Industries Ontology (FIO). Proceedings of the Joint Ontology Workshops 2025, 4176.
    Link Code 
    @inproceedings{schweikert2025fio,
  author = {Schweikert, Katrina and Hahmann, Torsten},
  title = {An Ontology Design Pattern for Industry Classification in the Facilities and Industries Ontology ({FIO})},
  booktitle = {Proceedings of the Joint Ontology Workshops 2025},
  series = {CEUR Workshop Proceedings},
  volume = {4176},
  year = {2025},
  url = {https://ceur-ws.org/Vol-4176/fomi-3.pdf}
}
  5. 2025
    Schweikert, K., Kedrowski, D. K., Stephen, S., & Hahmann, T. (2025). Precomputed Topological Relations for Integrated Geospatial Analysis Across Knowledge Graphs. 13th International Conference on Geographic Information Science, 346, 4:1–4:22.
    DOI 
    @inproceedings{schweikert2025topological,
  author = {Schweikert, Katrina and Kedrowski, David K. and Stephen, Shirly and Hahmann, Torsten},
  title = {Precomputed Topological Relations for Integrated Geospatial Analysis Across Knowledge Graphs},
  booktitle = {13th International Conference on Geographic Information Science},
  series = {Leibniz International Proceedings in Informatics},
  volume = {346},
  pages = {4:1--4:22},
  publisher = {Schloss Dagstuhl -- Leibniz-Zentrum für Informatik},
  year = {2025},
  doi = {10.4230/LIPIcs.GIScience.2025.4}
}
  6. 2024
    Reza, U., Zhang, X., & Hahmann, T. (2024). OnNER: An Ontology for Semantic Representation of Named Entities in Scholarly Publications. Formal Ontology in Information Systems, 394, 32–46.
    DOI Code 
    @inproceedings{reza2024onner,
  author = {Reza, Umayer and Zhang, Xuelian and Hahmann, Torsten},
  title = {{OnNER}: An Ontology for Semantic Representation of Named Entities in Scholarly Publications},
  booktitle = {Formal Ontology in Information Systems},
  series = {Frontiers in Artificial Intelligence and Applications},
  volume = {394},
  pages = {32--46},
  publisher = {IOS Press},
  year = {2024},
  doi = {10.3233/FAIA241291}
}
  7. 2023
    Wiafe-Kwakye, K., Hahmann, T., & Beard, K. (2023). Development of an Ontology-Based Approach to Spatio-Temporal Data Analysis for Forest-Environment Interactions: Extended Abstract. Proceedings of the Joint Ontology Workshops 2023, 3637.
    Link Code 
    @inproceedings{wiafekwakye2023digitalforest,
  author = {Wiafe-Kwakye, Kingsley and Hahmann, Torsten and Beard, Kate},
  title = {Development of an Ontology-Based Approach to Spatio-Temporal Data Analysis for Forest-Environment Interactions: Extended Abstract},
  booktitle = {Proceedings of the Joint Ontology Workshops 2023},
  series = {CEUR Workshop Proceedings},
  volume = {3637},
  year = {2023},
  url = {https://ceur-ws.org/Vol-3637/paper40.pdf}
}
  8. 2022
    Wiafe-Kwakye, K., Hahmann, T., & Beard, K. (2022). An Ontology Design Pattern for Spatial and Temporal Aggregate Data (STAD). Proceedings of the 13th Workshop on Ontology Design and Patterns, 3352.
    Link Code 
    @inproceedings{wiafekwakye2022stad,
  author = {Wiafe-Kwakye, Kingsley and Hahmann, Torsten and Beard, Kate},
  title = {An Ontology Design Pattern for Spatial and Temporal Aggregate Data ({STAD})},
  booktitle = {Proceedings of the 13th Workshop on Ontology Design and Patterns},
  series = {CEUR Workshop Proceedings},
  volume = {3352},
  year = {2022},
  url = {https://ceur-ws.org/Vol-3352/pattern4.pdf}
}