Torsten Hahmann

According to our database, Torsten Hahmann authored at least 47 papers between 2008 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2024

OWL Ontologies for the Urban Flooding Open Knowledge Network (UF-OKN).

Torsten Hahmann, David K. Kedrowski

Dataset, November, 2024

An Ontology and Geospatial Knowledge Graph for Reasoning About Cascading Failures (Short Paper).

Torsten Hahmann, David K. Kedrowski

Proceedings of the 16th International Conference on Spatial Information Theory, 2024

2023

Tutorials at The Web Conference 2023.

Valeria Fionda, Olaf Hartig, Reyhaneh Abdolazimi, Sihem Amer-Yahia, Hongzhi Chen, Xiao Chen, Peng Cui, Jeffrey Dalton, Xin Luna Dong, Lisette Espín-Noboa, Wenqi Fan, Manuela Fritz, Quan Gan, Jingtong Gao, Xiaojie Guo, Torsten Hahmann, Jiawei Han, Soyeon Caren Han, Estevam Hruschka, Liang Hu, Jiaxin Huang, Utkarshani Jaimini, Olivier Jeunen, Yushan Jiang, Fariba Karimi, George Karypis, Krishnaram Kenthapadi, Himabindu Lakkaraju, Hady W. Lauw, Thai Le, Trung-Hoang Le, Dongwon Lee, Geon Lee, Liat Levontin, Cheng-Te Li, Haoyang Li, Ying Li, Jay Chiehen Liao, Qidong Liu, Usha Lokala, Ben London, Siqu Long, Hande Küçük-McGinty, Yu Meng, Seungwhan Moon, Usman Naseem, Pradeep Natarajan, Behrooz Omidvar-Tehrani, Zijie Pan, Devesh Parekh, Jian Pei, Tiago Peixoto, Steven Pemberton, Josiah Poon, Filip Radlinski, Federico Rossetto, Kaushik Roy, Aghiles Salah, Mehrnoosh Sameki, Amit P. Sheth, Cogan Shimizu, Kijung Shin, Dongjin Song, Julia Stoyanovich, Dacheng Tao, Johanne Trippas, Quoc Truong, Yu-Che Tsai, Adaku Uchendu, Bram van den Akker, Lin Wang, Minjie Wang, Shoujin Wang, Xin Wang, Ingmar Weber, Henry Weld, Lingfei Wu, Da Xu, Yifan Ethan Xu, Shuyuan Xu, Bo Yang, Ke Yang, Elad Yom-Tov, Jaemin Yoo, Zhou Yu, Reza Zafarani, Hamed Zamani, Meike Zehlike, Qi Zhang, Xikun Zhang, Yongfeng Zhang, Yu Zhang, Zheng Zhang, Liang Zhao, Xiangyu Zhao, Wenwu Zhu

Proceedings of the Companion Proceedings of the ACM Web Conference 2023, 2023

Development of an Ontology-Based Approach to Spatio-Temporal Data Analysis for Forest-Environment Interactions (extended abstract).

Kingsley Wiafe-Kwakye, Torsten Hahmann, Kate Beard

Proceedings of the Joint Ontology Workshops 2023 Episode IX: The Quebec Summer of Ontology co-located with the 13th International Conference on Formal Ontology in Information Systems (FOIS 2023), 2023

Populating and Refining an Ontology of Cellulose Materials with Terms from Scientific Publications (extended abstract).

Umayer Reza, Torsten Hahmann

Proceedings of the Joint Ontology Workshops 2023 Episode IX: The Quebec Summer of Ontology co-located with the 13th International Conference on Formal Ontology in Information Systems (FOIS 2023), 2023

OPPO: An Ontology for Describing Fine-Grained Data Practices in Privacy Policies of Online Social Networks.

Sanonda Datta Gupta, Torsten Hahmann

Proceedings of the Joint Ontology Workshops 2023 Episode IX: The Quebec Summer of Ontology co-located with the 13th International Conference on Formal Ontology in Information Systems (FOIS 2023), 2023

2022

Geo-Situation for Modeling Causality of Geo-Events in Knowledge Graphs.

Shirly Stephen, Wenwen Li, Torsten Hahmann

CoRR, 2022

An Ontology Design Pattern for Spatial and Temporal Aggregate Data (STAD).

Kingsley Wiafe-Kwakye, Torsten Hahmann, Kate Beard

Proceedings of the 13th Workshop on Ontology Design and Patterns (WOP 2022) co-located with the 21th International Semantic Web Conference (ISWC 2022), 2022

2021

Automatically Extracting OWL Versions of FOL Ontologies.

Torsten Hahmann, Robert W. Powell II

Proceedings of the Semantic Web - ISWC 2021 - 20th International Semantic Web Conference, 2021

2020

CODI: A multidimensional theory of mereotopology with closure operations.

Torsten Hahmann

Appl. Ontology, 2020

The FOUnt ontologies for quantities, units, and the physical world.

Bahar Aameri, Carmen Chui, Michael Grüninger, Torsten Hahmann, Yi Ru

Appl. Ontology, 2020

A Methodology for Implementing the Formal Legal-GRL Framework: A Research Preview.

Amin Rabinia, Sepideh Ghanavati, Llio Humphreys, Torsten Hahmann

Proceedings of the Requirements Engineering: Foundation for Software Quality, 2020

Model-Finding for Externally Verifying FOL Ontologies: A Study of Spatial Ontologies.

Shirly Stephen, Torsten Hahmann

Proceedings of the Formal Ontology in Information Systems, 2020

2019

Geographies of the Holocaust: Experiments in GIS, QSR, and Graph Representations.

Tim Cole, Torsten Hahmann

Int. J. Humanit. Arts Comput., 2019

Water features and their parts.

Boyan Brodaric, Torsten Hahmann, Michael Gruninger

Appl. Ontology, 2019

Formal Qualitative Spatial Augmentation of the Simple Feature Access Model.

Shirly Stephen, Torsten Hahmann

Proceedings of the 14th International Conference on Spatial Information Theory, 2019

Identifying Bottlenecks in Practical SAT-Based Model Finding for First-Order Logic Ontologies with Datasets.

Shirly Stephen, Torsten Hahmann

Proceedings of the Thirty-Third AAAI Conference on Artificial Intelligence, 2019

2018

Using a hydro-reference ontology to provide improved computer-interpretable semantics for the groundwater markup language (GWML2).

Torsten Hahmann, Shirly Stephen

Int. J. Geogr. Inf. Sci., 2018

The Landform Reference Ontology (LFRO): A Foundation for Exploring Linguistic and Geospatial Conceptualization of Landforms (Short Paper).

Gaurav Sinha, Samantha T. Arundel, Torsten Hahmann, E. Lynn Usery, Kathleen Stewart, David M. Mark

Proceedings of the 10th International Conference on Geographic Information Science, 2018

Using commonsensical cardinal directions to describe bordering objects.

Gregory Kritzman, Torsten Hahmann

Proceedings of the 26th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2018

On Decomposition Operations in a Theory of Multidimensional Qualitative Space.

Torsten Hahmann

Proceedings of the Formal Ontology in Information Systems, 2018

Foundational Ontologies for Units of Measure.

Michael Grüninger, Bahar Aameri, Carmen Chui, Torsten Hahmann, Yi Ru

Proceedings of the Formal Ontology in Information Systems, 2018

2017

An Ontological Framework for Characterizing Hydrological Flow Processes.

Shirly Stephen, Torsten Hahmann

Proceedings of the 13th International Conference on Spatial Information Theory, 2017

A Reference Landform Ontology for Automated Delineation of Depression Landforms from DEMs.

Gaurav Sinha, Samantha T. Arundel, Kathleen Stewart, David M. Mark, Torsten Hahmann, Boleslo E. Romero, Alexandre Sorokine, E. Lynn Usery, Grant McKenzie

Proceedings of Workshops and Posters at the 13th International Conference on Spatial Information Theory, 2017

2016

From Data Streams to Fields: Extending Stream Data Models with Field Data Types.

Qinghan Liang, Silvia Nittel, Torsten Hahmann

Proceedings of the Geographic Information Science - 9th International Conference, 2016

2015

A Reconciliation of Logical Representations of Space: from Multidimensional Mereotopology to Geometry.

Torsten Hahmann

PhD thesis, 2015

Internet of things: Toward smart networked systems and societies.

Mark A. Underwood, Michael Gruninger, Leo Obrst, Ken Baclawski, Mike Bennett, Gary Berg-Cross, Torsten Hahmann, Ram D. Sriram

Appl. Ontology, 2015

What is in a Contour Map? - A Region-Based Logical Formalization of Contour Semantics.

Torsten Hahmann, E. Lynn Usery

Proceedings of the Spatial Information Theory - 12th International Conference, 2015

Towards Ontologies in Variation.

Torsten Hahmann, Sheila A. McIlraith

Proceedings of the 2015 AAAI Spring Symposia, 2015

2014

An Ontology Design Pattern for Material Transformation.

Charles Vardeman, Adila Krisnadhi, Michelle Cheatham, Krzysztof Janowicz, Holly Ferguson, Pascal Hitzler, Aimee Buccellato, Krishnaprasad Thirunarayan, Gary Berg-Cross, Torsten Hahmann

Proceedings of the 5th Workshop on Ontology and Semantic Web Patterns (WOP2014) co-located with the 13th International Semantic Web Conference (ISWC 2014), 2014

Interdependence among material objects and voids.

Torsten Hahmann, Boyan Brodaric, Michael Grüninger

Proceedings of the Formal Ontology in Information Systems, 2014

Voids and material constitution across physical granularities.

Torsten Hahmann, Boyan Brodaric

Proceedings of the Formal Ontology in Information Systems, 2014

Ontology Repositories: A Treasure Trove for Content Ontology Design Patterns.

Torsten Hahmann

Proceedings of the 8th International Workshop on Modular Ontologies co-located with the 8th International Conference on Formal Ontology in Information Systems (FOIS 2014), 2014

A Sideways Look at Upper Ontologies.

Michael Grüninger, Torsten Hahmann, Megan Katsumi, Carmen Chui

Proceedings of the Formal Ontology in Information Systems, 2014

2013

Complementation in Representable Theories of Region-Based Space.

Torsten Hahmann, Michael Grüninger

Notre Dame J. Formal Log., 2013

Kinds of Full Physical Containment.

Torsten Hahmann, Boyan Brodaric

Proceedings of the Spatial Information Theory - 11th International Conference, 2013

2012

Modular first-order ontologies via repositories.

Michael Grüninger, Torsten Hahmann, Ali Hashemi, Darren Ong, Atalay Özgövde

Appl. Ontology, 2012

On the algebra of regular sets - Properties of representable Stonian p-ortholattices.

Michael Winter, Torsten Hahmann, Michael Grüninger

Ann. Math. Artif. Intell., 2012

The Void in Hydro Ontology.

Torsten Hahmann, Boyan Brodaric

Proceedings of the Formal Ontology in Information Systems, 2012

2011

Exploiting Modularity for Ontology Verification.

Michael Grüninger, Torsten Hahmann, Megan Katsumi

Proceedings of the Modular Ontologies - Proceedings of the Fifth International Workshop, 2011

Multidimensional Mereotopology with Betweenness.

Torsten Hahmann, Michael Grüninger

Proceedings of the IJCAI 2011, 2011

A Naive Theory of Dimension for Qualitative Spatial Relations.

Torsten Hahmann, Michael Gruninger

Proceedings of the Logical Formalizations of Commonsense Reasoning, 2011

2010

Ontology Verification with Repositories.

Michael Grüninger, Torsten Hahmann, Ali Hashemi, Darren Ong

Proceedings of the Formal Ontology in Information Systems, 2010

2009

Stonian p-ortholattices: A new approach to the mereotopology RT₀.

Torsten Hahmann, Michael Winter, Michael Gruninger

Artif. Intell., 2009

Detecting Physical Defects: A Practical 2D-Study of Cracks and Holes.

Torsten Hahmann, Michael Gruninger

Proceedings of the Benchmarking of Qualitative Spatial and Temporal Reasoning Systems, 2009

On the Skeleton of Stonian p-Ortholattices.

Michael Winter, Torsten Hahmann, Michael Gruninger

Proceedings of the Relations and Kleene Algebra in Computer Science, 2009

2008

Model-Theoretic Characterization of Asher and Vieu's Ontology of Mereotopology.

Torsten Hahmann, Michael Gruninger

Proceedings of the Principles of Knowledge Representation and Reasoning: Proceedings of the Eleventh International Conference, 2008