Preface to the Proceedings of the 2020 International Semantic Web Conference Posters, Demos and Industry Tracks: From Novel Ideas to Industrial Practice∗ Kerry Taylor Australian National University, Canberra, Australia Rafael Gonçalves Stanford University, Stanford CA, USA Freddy Lecue Thales Canada, Montreal, Canada INRIA, Sophia Antipolis, France Jun Yan Yidu Cloud, Beijing, P.R. China October 2020 This volume contains short papers presented at ISWC2020: 19th Interna- tional Semantic Web Conference November 1-6, 2020, held as a global online conference. The conference was originally planned for that most fascinating city of Athens, Greece, but 2020 being the year that it is, participants are all staying at home and practising their virtual presentation and networking skills. How- ever, there is still plenty to see and learn about in the Poster and Demonstration, and Industry Track Sessions of the conference. We thank the ISWC General Chair, Lalana Kagal of MIT (Mass, USA) for her strong leadership of a conference that had to find a new way of being the ∗ Copyright © 2020 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0). i premier international research conference in Semantic Web, including knowledge graphs, linked data, ontologies, and AI on the Web. We thank the conference sponsors: Metaphacts, IBM, inrupt, ebay, Co- inform, accenture, SIRIUS, Oracle, Google, Springer LNCS, HEROS and the Ar- tificial Intelligence journal. We are also grateful to Easychair for its highly func- tional conference management toolkit, and to CEUR-WS for its high-quality, volunteer-operated service to the computer science research community. The collection of papers in this proceedings were selected from those submit- ted to the Poster and Demonstration Track and the Industry Track of ISWC. Posters and Demonstrations The Posters and Demos Track is one of the most vibrant parts of every ISWC. This year, the track was chaired by Rafael Gonçalves and Kerry Taylor. We received a total of 97 submissions: 58 posters and 39 demos. The program committee, consisting of 87 members and the track chairs, accepted 43 posters and 35 demos based on 3 reviews per submission. The decisions were primarily based on relevance, originality, and clarity of the submissions. We thank our esteemed program committee, comprising Akhil Arora, Ecole Polytechnique Fédérale de Lausanne Alessandro Russo, STLab, ISTC-CNR Alfio Ferrara, University of Milan Alina Petrova, University of Oxford Anastasia Dimou, Ghent University Anca Dumitrache, Vrije Universiteit Amsterdam Andreas Thalhammer, F. Hoffmann-La Roche AG Andrew Bate, University of Oxford Anna Jordanous, University of Kent Anna Lisa Gentile, IBM Anna Tordai, Elsevier B.V. Annett Mitschick, TU Dresden Barış Sertkaya, Frankfurt University of Applied Sciences Besnik Fetahu, L3S Research Center Carlos Badenes-Olmedo, Universidad Politécnica de Madrid Chang Sun, Institute of Data Science at Maastricht University Cogan Shimizu, Kansas State University Daniel Hienert, GESIS – Leibniz Institute for the Social Sciences David Chaves-Fraga, Universidad Politécnica de Madrid Diego Collarana, Enterprise Information System (EIS) Ernesto Jimenez-Ruiz, City, University of London Ernesto William De Luca, Leibniz-Institute for International Textbook Research Fabrizio Orlandi, ADAPT, Trinity College Dublin Francesco Osborne, The Open University ii George H. L. Fletcher, Eindhoven University of Technology Giovanna Guerrini, DIBRIS- University of Genova Giuseppe Rizzo, LINKS Foundation Grigoris Antoniou, University of Huddersfield Harshvardhan J. Pandit, ADAPT Centre – Trinity College Dublin Heiko Paulheim, University of Mannheim Jaroslaw Bak, Poznan University of Technology Jennifer Sleeman, University of Maryland Baltimore County Jesualdo Tomás Fernández-Breis, Universidad de Murcia Jiwei Ding, Nanjing University Jodi Schneider, University of Illinois Urbana Champaign Josef Hardi, Stanford BMIR Juan F. Sequeda, data.world Julian Rojas, Ghent University Jyoti Leeka, Microsoft Kalpa Gunaratna, Samsung Research Khai Nguyen, Cinnamon Inc. Kody Moodley, Maastricht University Kouji Kozaki, Osaka University Krzysztof Wecel, Poznan University of Economics Lihua Zhao, Accenture Marı́a Poveda-Villalón, Universidad Politécnica de Madrid Mariano Fernández López, Universidad San Pablo CEU Marieke van Erp, KNAW Humanities Cluster Martin Atzmueller, Osnabrueck University Maulik R. Kamdar, Elsevier Inc. Mayank Kejriwal, Information Sciences Institute Miguel Ceriani, University of Bari Natalya Keberle, Zaporizhzhya National University Nathan Elazar, Australian National University Nelia Lasierra, F. Hoffmann-La Roche Ognjen Savkovic, Free University of Bolzano Ondřej Zamazal, University of Economics, Prague Pan Hu, University of Oxford Pasquale Lisena, EURECOM Pavel Shvaiko, Informatica Trentina Pavlos Fafalios, Institute of Computer Science, FORTH-ICS Payam Barnaghi, Imperial College London Peter Haase, metaphacts Pierpaolo Basile, Dipartimento di Informatica – University of Bari Pouya Ghiasnezhad Omran, Australian National University Qingxia Liu, Nanjing University Rafael Peñaloza, University of Milano-Bicocca Ran Yu, GESIS – Leibniz Institute for the Social Sciences Roberto Garcia, Universitat de Lleida Sabrina Kirrane, Vienna University of Economics and Business – WU Wien iii Sainyam Galhotra, University of Massachusetts Sergio Consoli, European Commission, Joint Research Centre Sergio José Rodrı́guez Méndez, Australian National University Takahira Yamaguchi, Keio University Takahiro Kawamura, National Agriculture and Food Research Org., Japan Thomas Steiner, Google Tomas Horvath, Eötvös Loránd University Tomas Kliegr, University of Economics, Prague Valentina Janev, The Mihajlo Pupin Institute Varish Mulwad, GE Global Research Vit Novacek, DERI, National University of Ireland, Galway Volha Bryl, Springer Nature Wei Emma Zhang, The University of Adelaide Wei Hu, Nanjing University Yulia Svetashova, Robert Bosch GmbH Zequn Sun, Nanjing University Ziqi Zhang, Sheffield University Industry Track The industry track provides an opportunity for industry adopters to highlight and share the key learnings and challenges of applying semantic web technologies in real-world and scalable implementations. This year, the track chairs Freddy Lecue and Jun Yan received 22 submissions from a wide range of companies of different sizes, and 15 submissions were accepted. The submissions were assessed in terms of the quantitative and qualitative value proposition provided; innovative aspects, impact, lessons learned, and business value in the application domain; and the degree to which semantic technologies are critical to their offering. Each paper got one review from an Industry Semantic Web expert, which has been checked and validated by the Industry track chairs. The final decision was based on the evidence and impact of industrial applications using and based on semantic web technologies. iv