Swiss Canton Regions: A Model for Complex Objects in Geographic Partitions. - Matthew P. Dube; Max J. Egenhofer; Joshua A. Lewis; Shirly Stephen; Mark A. Plummer (COSIT, 2015)

An Ontological Framework for Characterizing Hydrological Flow Processes. - Shirly Stephen; Torsten Hahmann (COSIT, 2017)

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)

Identifying Bottlenecks in Practical SAT-Based Model Finding for First-Order Logic Ontologies with Datasets. - Shirly Stephen; Torsten Hahmann (AAAI, 2019)

Formal Qualitative Spatial Augmentation of the Simple Feature Access Model. - Shirly Stephen; Torsten Hahmann (COSIT, 2019)

Model-Finding for Externally Verifying FOL Ontologies: A Study of Spatial Ontologies. - Shirly Stephen; Torsten Hahmann (FOIS, 2020)

Environmental Observations in Knowledge Graphs. - Rui Zhu 008; Shirly Stephen; Lu Zhou 005; Cogan Shimizu; Ling Cai; Gengchen Mai; Krzysztof Janowicz; Pascal Hitzler; Mark Schildhauer (DaMaLOS, 2021)

SOSA-SHACL: Shapes Constraint for the Sensor, Observation, Sample, and Actuator Ontology. - Rui Zhu 008; Cogan Shimizu; Shirly Stephen; Lu Zhou 005; Ling Cai; Gengchen Mai; Krzysztof Janowicz; Mark Schildhauer; Pascal Hitzler (IJCKG, 2021)

A Pattern for Features on a Hierarchical Spatial Grid. - Cogan Shimizu; Rui Zhu 008; Gengchen Mai; Colby K. Fisher; Ling Cai; Mark Schildhauer; Krzysztof Janowicz; Pascal Hitzler; Lu Zhou 005; Shirly Stephen (IJCKG, 2021)

Providing Humanitarian Relief Support through Knowledge Graphs. - Rui Zhu 008; Ling Cai; Gengchen Mai; Cogan Shimizu; Colby K. Fisher; Krzysztof Janowicz; Anna Lopez-Carr; Andrew Schroeder; Mark Schildhauer; Yuanyuan Tian 002; Shirly Stephen; Zilong Liu (K-CAP, 2021)

Knowledge explorer: exploring the 12-billion-statement KnowWhereGraph using faceted search (demo paper). - Zilong Liu; Zhining Gu; Thomas Thelen; Seila Gonzalez Estrecha; Rui Zhu 008; Colby K. Fisher; Anthony D'Onofrio; Cogan Shimizu; Krzysztof Janowicz; Mark Schildhauer; Shirly Stephen; Dean Rehberger; et al. (SIGSPATIAL/GIS, 2022)

A Pattern for Representing Scientific Taxonomies. - Shirly Stephen; Cogan Shimizu; Mark Schildhauer; Rui Zhu 008; Krzysztof Janowicz; Pascal Hitzler (WOP@ISWC, 2022)

Know, Know Where, Knowwheregraph: A Densely Connected, Cross-Domain Knowledge Graph and Geo-Enrichment Service Stack for Applications in Environmental Intelligence. - Krzysztof Janowicz; Pascal Hitzler; Wenwen Li 002; Dean Rehberger; Mark Schildhauer; Rui Zhu 008; Cogan Shimizu; Colby K. Fisher; Ling Cai; Gengchen Mai; Joseph Zalewski; Lu Zhou 005; et al. (AI Mag., 2022)

Geo-Situation for Modeling Causality of Geo-Events in Knowledge Graphs. - Shirly Stephen; Wenwen Li 002; Torsten Hahmann (CoRR, 2022)

Diverse data! Diverse schemata? - Krzysztof Janowicz; Cogan Shimizu; Pascal Hitzler; Gengchen Mai; Shirly Stephen; Rui Zhu 008; Ling Cai; Lu Zhou 005; Mark Schildhauer; Zilong Liu; Zhangyu Wang; Meilin Shi (Semantic Web, 2022)

The KnowWhereGraph Ontology: A Showcase. - Cogan Shimizu; Shirly Stephen; Rui Zhu 008; Kitty Currier; Mark Schildhauer; Dean Rehberger; Pascal Hitzler; Krzysztof Janowicz; Colby K. Fisher; Mohammad Saeid Mahdavinejad; Antrea Christou; Adrita Barua; et al. (JOWO, 2023)

A Formal Framework for Disaster Risk Properties. - Shirly Stephen; Mark Schildhauer; Kitty Currier; Pascal Hitzler; Cogan Shimizu; Krzysztof Janowicz; Dean Rehberger (JOWO, 2023)

The Expertise Ontology: Modeling Expertise in the Context of Emergency Management. - Shirly Stephen; Mark Schildhauer; Ling Cai; Yuanyuan Tian 002; Kitty Currier; Cogan Shimizu; Krzysztof Janowicz; Pascal Hitzler; Anna Lopez-Carr; Andrew Schroeder; Zilong Liu; Rui Zhu 008; et al. (JOWO, 2023)

KnowWhereGraph-Lite: A Perspective of the KnowWhereGraph. - Cogan Shimizu; Shirly Stephen; Antrea Christou; Kitty Currier; Mohammad Saeid Mahdavinejad; Sanaz Saki Norouzi; Abhilekha Dalal; Adrita Barua; Colby K. Fisher; Anthony D'Onofrio; Thomas Thelen; Krzysztof Janowicz; et al. (KGSWC, 2023)

The HIP ontology: A formal framework to support disaster risk reduction and management. - Shirly Stephen; Mark Schildhauer; Krzysztof Janowicz; Kitty Currier; Pascal Hitzler; Cogan Shimizu; Colby K. Fisher; Dean Rehberger (JOWO, 2024)

The S2 Hierarchical Discrete Global Grid as a Nexus for Data Representation, Integration, and Querying Across Geospatial Knowledge Graphs. - Shirly Stephen; Mitchell Faulk; Krzysztof Janowicz; Colby K. Fisher; Thomas Thelen; Rui Zhu 008; Pascal Hitzler; Cogan Shimizu; Kitty Currier; Mark Schildhauer; Dean Rehberger; Zhangyu Wang; et al. (CoRR, 2024)

Precomputed Topological Relations for Integrated Geospatial Analysis Across Knowledge Graphs. - Katrina Schweikert; David K. Kedrowski; Shirly Stephen; Torsten Hahmann (GIScience, 2025)

The KnowWhereGraph ontology. - Cogan Shimizu; Shirly Stephen; Adrita Barua; Ling Cai; Antrea Christou; Kitty Currier; Abhilekha Dalal; Colby K. Fisher; Pascal Hitzler; Krzysztof Janowicz; Wenwen Li 002; Zilong Liu; et al. (J. Web Semant., 2025)

The KnowWhereGraph: A Large-Scale Geo-Knowledge Graph for Interdisciplinary Knowledge Discovery and Geo-Enrichment. - Rui Zhu 008; Cogan Shimizu; Shirly Stephen; Colby K. Fisher; Thomas Thelen; Kitty Currier; Krzysztof Janowicz; Pascal Hitzler; Mark Schildhauer; Wenwen Li 002; Dean Rehberger; Adrita Barua; et al. (CoRR, 2025)