This volume contains the papers presented at the 10th edition of the Formal Ontology in Information Systems conference, FOIS 2018, held between September 17–21, 2018, in Cape Town, South Africa. The conference was preceded by the 4th Interdisciplinary School on Applied Ontology, ISAO 2018, held between 10–15 September 2018 and was at the centre of a series of initiatives: the Joint Ontology Workshops 2018 (JOWO 2018) on September 17–18, the Early Career Symposium (ECS 2018) on September 19, and two tutorials, one on Conceptual Ontology Engineering and one on Referring Expressions in Ontologies and Query Answering.

The Joint Ontology Workshops 2018 comprised five specialised workshops, namely: Cognition And OntologieS 3 (CAOS-CEX), Epistemology in Ontologies II (EPINON II), the 6th International Workshop on Ontologies and Conceptual Modelling (Onto.CoM), Ontology of Economics, as well as the BadOntoloGy (BOG) workshop. Also, the Early Career Symposium was held within the FOIS conference program to give students and starting researchers the opportunity to present their work and engage with senior scientists in their field as well as to meet and discuss their work with each other in an open and friendly environment.

We received 48 submissions to the main track of the conference, 4 submissions to the ontology competition, and 6 submissions to the Early Career Symposium, coming from 20 countries. All papers were peer reviewed by at least three members of the programme committee (listed below). Based on the reviews we received, we accepted fourteen full papers (29,2% of submissions) and five short papers for the main track. Two of the ontology competition submissions were accepted for presentation during JOWO, and the Early Career Symposium accepted five submitted proposals for presentation as posters and lightning talks in a dedicated session of the conference.

As it usually happens at FOIS conferences, the variety of topics, methods, results, formalisms etc. one can find in the papers is astonishing. We grouped the contributions to the main track into four broad categories and organised them in respective chapters of the proceedings as follows:

• Foundations (7 papers)

• Agents and Properties (4 papers)

• Methods and Tools (4 papers)

• Applications (4 papers)

Regarding applications of ontologies, also a broad spectrum of areas is covered, including in particular biology and medicine, IoT, engineering and linguistics.

Winners of the FOIS Best Paper Award were announced during the conference. Awards and runners-up can be found at iaoa.org/fois/.

Acknowledgements

In this edition of the conference, we have received the support of several organisations. In particular, we would like to thank the University of Cape Town for supporting the organisation of the ISAO summer school with free rooms and infrastructure. Special thanks go to C. Maria Keet for her excellent work as a Local Chair for FOIS 2018, as well as to Zubeida Khan for her help with the ISAO 2018 website. We also thank IOS Press for sponsoring the FOIS Best Paper Award.

FOIS/JOWO/ISAO 2018 were organised under the auspices of our scientific promoter association, the International Association for Ontologies and its Applications (IAOA – iaoa.org).

Last but not least, we would like to thank our three invited speakers, Riichiro Mizoguchi, Alessandro Oltramari and Peter Simons for delivering keynotes at the conference.

Stefano Borgo

Pascal Hitzler

Oliver Kutz