Combining Machine Learning and Knowledge Engineering in Practice (AAAI-MAKE 2020) - Volume I: Spring Symposium Andreas Martin and Knut Hinkelmann FHNW University of Applied Sciences and Arts Northwestern Switzerland, School of Business, Olten, Switzerland {andreas.martin, knut.hinkelmann}@fhnw.ch Abstract Volume I, which contains a comprehensive collection of dif- This Volume I contains the papers dedicated to the AAAI ferent papers from industry and academia with a focus on 2020 Spring Symposium on combining machine learning and practical applications on the combination of machine learn- knowledge engineering in practice, which is postponed and ing and knowledge engineering. The papers of Volume I, the part of the AAAI 2020 Fall Symposium. AAAI 2020 Spring Symposium, are presented together with the updated/revised papers of Volume II at the AAAI 2020 Preface Fall Symposium. The AAAI 2020 spring symposium on combining machine learning and knowledge engineering in practice (AAAI- MAKE 2020), which was planned to be held at Stanford University, Palo Alto, California, USA, from March 23 to 25, 2020, has the aim of bringing together practitioners and researchers from various companies, research centers, and academia coming from machine learning and knowledge en- gineering domains. Despite a voluminous submission phase, and a rigorous and in-depth review by the program com- mittee, the AAAI had to cancel the physical meeting of the Spring Symposium, including this AAAI-MAKE 2020 symposium, due to the spread of Sars-CoV-2, the resulting disease COVID-19. Therefore, AAAI-MAKE 2020 is post- poned and part of the AAAI Fall Symposium in Arlington, Virginia, adjacent to Washington, DC, on November 11-12, 2020. However, it was clear to the authors, participants, orga- nizers, and chairs that, despite the deferring of the physical meeting, everyone will continue to work on a joint AI that is being explainable and grounded in domain knowledge. In consultation with the authors, organizers, program commit- tee, and chairs, the papers shall be published as Volume I, despite the physical meeting had to be postponed. In Volume II, authors have the opportunity to submit an updated/revised version of their papers for the Fall Symposium, subject to a rigorous and in-depth editorial review, as this joint AI re- search should not and cannot just be suspended due to a pan- demic situation. We are grateful to CEUR-WS.org for relaxing the require- ment of a physical location and allowing us to publish this Copyright c 2020 held by the author(s). In A. Martin, K. Hinkel- mann, H.-G. Fill, A. Gerber, D. Lenat, R. Stolle, F. van Harmelen (Eds.), Proceedings of the AAAI 2020 Spring Symposium on Com- bining Machine Learning and Knowledge Engineering in Practice (AAAI-MAKE 2020). Stanford University, Palo Alto, California, USA, March 23-25, 2020. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).