Karl Hammar

Lecturer Information technology

Computer Science and Informatics , School of Engineering

PhD


Karl Hammar is employed within the Semantic Technologies research group at the Department of Computer Science and Informatics.

Research

Karl's research concerns Ontology Engineering using Ontology Design Patterns. His focus is on developing methods and tools for finding, specializing, and combining patterns, and on ascertaining which qualities and features patterns need to display in order to support such methods and tools.

Biography

Karl holds a PhD in Computer Science from Linköping University. He has participated in several national and international research projects on the topics of knowledge representation and the semantic web; application areas include security and surveillance, veterinary epidemiology, software testing, crime and policing, etc. He has presented his research at leading international conferences such as ISWC, ESWC, EKAW, BIR, etc., and has arranged workshops and seminars within both academia and industry.

Article

Dórea, F., Vial, F., Hammar, K., Lindberg, A., Lambrix, P., Blomqvist, E., Revie, C. (2019). Drivers for the development of an Animal Health Surveillance Ontology (AHSO) Preventive Veterinary Medicine, 166, 39-48. More information
Alirezaie, M., Hammar, K., Blomqvist, E. (2018). SmartEnv as a Network of Ontology Patterns Semantic Web, 9(6), 903-918. More information

Book chapter

Hitzler, P. Fernandez, M. Janowicz, K. Zaveri, A. Gray, A. Lopez, V. , ... Hammar K. (2019). Preface. In: Lecture Notes in Computer Science: Volume 11503, 16th International Semantic Web Conference, ESWC 2019, Portorož, Slovenia, 2 June 2019 through 6 June 2019 (pp. v -vii). More information
Janowicz, K., Krisnadhi, A., Poveda Villalón, M., Hammar, K., Shimizu, C. (2019). Preface. In: Krzysztof Janowicz, Adila Alfa Krisnadhi, María Poveda Villalón, Karl Hammar & Cogan Shimizu (Ed.), Workshop on Ontology Design and Patterns 2019: Proceedings of the 10th Workshop on Ontology Design and Patterns (WOP 2019), co-located with 18th International Semantic Web Conference (ISWC 2019), Auckland, New Zealand, October 27, 2019 (pp. 1). More information
Blomqvist, E., Hammar, K., Presutti, V. (2016). Engineering Ontologies with Patterns - The eXtreme Design Methodology. In: Pascal Hitzler, Aldo Gangemi, Krzysztof Janowicz, Adila Krisnadhi, Valentina Presutti (Ed.), Ontology Engineering with Ontology Design Patterns (pp. 23 -50). More information
Hammar, K. (2016). Quality of Content Ontology Design Patterns. In: Pascal Hitzler, Aldo Gangemi, Krzysztof Janowicz, Adila Krisnadhi, Valentina Presutti (Ed.), Ontology Engineering with Ontology Design Patterns (pp. 51 -71). More information
Hammar, K. Blomqvist, E. Carral, D. Van Erp, M. Fokkens, A. Gangemi, A. , ... Svatek V. (2016). Collected Research Questions Concerning Ontology Design Patterns. In: Pascal Hitzler, Aldo Gangemi, Krzysztof Janowicz, Adila Krisnadhi, Valentina Presutti (Ed.), Ontology Engineering with Ontology Design Patterns (pp. 189 -198). More information

Conference paper

Shimizu, C., Hammar, K., Hitzler, P. (2020). Modular graphical ontology engineering evaluated. Cham: Springer, 17th International Conference, ESWC 2020, Heraklion, Crete, Greece, May 31–June 4, 2020. More information
Shimizu, C., Hammar, K. (2019). CoModIDE – The Comprehensive Modular Ontology Engineering IDE. ISWC 2019 Satellite Tracks (Posters & Demonstrations, Industry, and Outrageous Ideas) co-located with 18th International Semantic Web Conference (ISWC 2019) Auckland, New Zealand, October 26-30, 2019.. More information
Hammar, K., Wallin, E., Karlberg, P., Hälleberg, D. (2019). The RealEstateCore Ontology. Cham: Springer, 18th International Semantic Web Conference, Auckland, New Zealand, October 26–30, 2019. More information
Alirezaie, M., Hammar, K., Blomqvist, E., Nyström, M., Ivanova, V. (2018). SmartEnv Ontology in E-care@home. 9th International Semantic Sensor Networks Workshop, Monterey, CA, United States, October 9, 2018. More information
Hammar, K., Hitzler, P., Krisnadhi, A., Ławrynowicz, A., Nuzzolese, A., Solanki, M. (2017). Preface. 7th Workshop on Ontology and Semantic Web Patterns. More information
Karima, N., Hammar, K., Hitzler, P. (2017). How to Document Ontology Design Patterns. 7th Workshop on Ontology and Semantic Web Patterns. More information
Hammar, K., Presutti, V. (2017). Template-Based Content ODP Instantiation. The 7th Workshop on Ontology and Semantic Web Patterns. More information
Hammar, K. (2015). Ontology Design Patterns in WebProtégé. ISWC 2015 Posters & Demonstrations Track co-located with the 14th International Semantic Web Conference (ISWC-2015), Betlehem, USA, October 11, 2015. More information
Hammar, K. (2014). Ontology Design Pattern Property Specialisation Strategies. Berlin: Springer Berlin/Heidelberg, International Conference on Knowledge Engineering and Knowledge Management (EKAW) 2014. More information
Hammar, K. (2014). Ontology Design Patterns: Improving Findability and Composition. Berlin: Springer Berlin/Heidelberg, Extended Semantic Web Conference (ESWC) 2014. More information
Hammar, K. (2014). Ontology Design Patterns: Adoption Challenges and Solutions. Second International Workshop on Semantic Web Enterprise Adoption and Best Practice in conjunction with the 11th European Semantic Web Conference (ESWC 2014), Anissaras, Greece, May 26, 2014. More information
Hammar, K. (2014). Reasoning Performance Indicators for Ontology Design Patterns. Workshop on Ontology and Semantic Web Patterns in conjunction with the 12th International Semantic Web Conference (ISWC) 2013. More information
Hammar, K. (2012). Ontology Design Patterns in Use: Lessons Learnt from an Ontology Engineering Case. Workshop on Ontology Patterns in conjunction with the 11th International Semantic Web Conference 2012 (ISWC 2012). More information
Hammar, K. (2012). Modular Semantic CEP for Threat Detection. Mexico City: National Polytechnic Institute, Operations Research and Data Mining (ORADM) 2012. More information
Hammar, K. (2011). DC Proposal: Towards an ODP Quality Model. Berlin: Springer, 10th International Semantic Web Conference, Bonn, Germany. More information
Hammar, K. (2011). The State of Ontology Pattern Research. Riga, Latvia: Riga Technical University, 4th Workshop on Information Logistics and Knowledge Supply for Viable Enterprises (ILOG 2011) in conjunction with 10th International Conference on Perspectives in Business Informatics Research (BIR 2011). More information
Hammar, K., Sandkuhl, K. (2010). The State of Ontology Pattern Research: A Systematic Review of ISWC, ESWC and ASWC 2005–2009. The Workshop On Ontology Patterns (WOP 2010) At The 9th International Semantic Web Conference (ISWC 2010). More information
Hammar, K., Tarasov, V., Lin, F. (2010). Information Reuse and Interoperability with Ontology Patterns and Linked Data: First Experiences from the ExpertFinder Project. Berlin: Springer, 3rd Workshop on Information Logistics and Knowledge Supply in conjunction with 13th International Conference on Business Information Systems. More information

Conference proceedings (editor)

Hitzler, P. Fernández, M. Janowicz, K. Zaveri, A. Gray, A. Lopez, V. , ... Hammar K. (Eds.). (2019). The Semantic Web: 16th International Conference, ESWC 2019, Portorož, Slovenia, June 2–6, 2019, Proceedings. , Cham: Springer More information
Janowicz, K., Krisnadhi, A., Poveda Villalón, M., Hammar, K., Shimizu, C. (Eds.). (2019). WOP 2019: Workshop on Ontology Design and Patterns 2019: Proceedings of the 10th Workshop on Ontology Design and Patterns (WOP 2019), co-located with 18th International Semantic Web Conference (ISWC 2019), Auckland, New Zealand, October 27, 2019. More information
Skjæveland, M., Hu, Y., Hammar, K., Svátek, V., Ławrynowicz, A. (Eds.). (2018). WOP 2018: Workshop on Ontology Design and Patterns. More information
Hammar, K., Hitzler, P., Krisnadhi, A., Ławrynowicz, A., Nuzzolese, A., Solanki, M. (Eds.). (2017). Advances in Ontology Design and Patterns. More information
Gangemi, A., Gruninger, M., Hammar, K., Lefort, L., Presutti, V., Scherp, A. (Eds.). (2014). Proceedings of the 4th Workshop on Ontology and Semantic Web Patterns. More information
Hammar, K. García-Crespo, A. Gómez Berbís, J. Radzimski, M. Sánchez Cervantes, J. Coppens, S. , ... Vander Sande M. (Eds.). (2014). WaSABi-FEOSW 2014: Joint Proceedings of WaSABi 2014 and FEOSW 2014. More information
Coppens, S., Hammar, K., Knuth, M., Neumann, M., Ritze, D., Sack, H., Vander Sande, M. (Eds.). (2013). WaSABi 2013: Semantic Web Enterprise Adoption and Best Practice: Proceedings of the Workshop on Semantic Web Enterprise Adoption and Best Practice Co-located with 12th International Semantic Web Conference (ISWC 2013), Sydney, Australia, October 22, 2013. More information
Blomqvist, E., Gangemi, A., Hammar, K., Suárez-Figueroa, M. (Eds.). (2012). WOP 2012: Proceedings of the 3rd Workshop on Ontology Patterns. More information

Dataset

Hammar, K., Shimizu, C. (2019). Modular Graphical Ontology Engineering Evaluated: Supporting Data. More information
Hammar, K. (2016). Motivating and Evaluating Template-Based Content ODP Instantiation: Evaluation Dataset for WOP 2016 Submission. More information
Hammar, K. (2016). How to Document Ontology Design Patterns: Supporting Data Part 2. More information

Doctoral thesis

Hammar, K. (2017). Content Ontology Design Patterns: Qualities, Methods, and Tools (Doctoral thesis, Linköping: Linköping University Electronic Press). More information

Licentiate thesis

Hammar, K. (2013). Towards an Ontology Design Pattern Quality Model (Licentiate thesis, Linköping: Linköping University Electronic Press). More information