PLACE: Linköping University, Sweden + Digital participation TIME: October 5-7, 2021
Presentation Show/Hide content
Welcome to Omdi 2021
Formalized descriptions of materials science terminology in form of ontologies are increasingly important for making materials data FAIR (findable, accessible, interoperable, and reusable). The OMDI2021 workshop aims to bring together researchers engaged in materials databases, materials-oriented ontologies, and semantic methods.
OntologiesOntologies aim to define the basic terms and relations of a domain of interest, as well as the rules for combining these terms and relations. They standardise terminology in a domain of interest and are a basis for semantically enriching data, semantic search, integration of data from different data sources, and reasoning over the data. Using ontologies can alleviate challenges associated with the variety (data sources are heterogeneous regarding the type and nature of data they store), variability (data can be inconsistent), and veracity (not all data can be trusted). Further, they are proposed as an enabler making data FAIR, i.e., findable, accessible, interoperable, and reusable, with the purpose of enabling machines to automatically find and use the data, and individuals to easily reuse the data. One of the most successful examples of ontologies in science is the GeneOntology (GO) with upwards 20 thousand citations. It showcases the benefits of ontology usage in scientific research.
Importance for materials databasesAn ontology for materials databases establishes semantic relations between common materials definitions and thus formally provides a directed graph with communal conceptual constructs. This formalisation is crucial for, e.g., data integration and semantic-based search. Combining unified access to materials databases with a shared understanding of materials properties and relations and the use of a common data format will be of major benefit to the materials science community and enable databases and software to work together in more informed and useful ways.
Existing ontologies in materials scienceThere are several existing and ongoing efforts in materials science-related taxonomies and ontologies. The EMMO effort of the EMMC is a well-known broad approach to an ontology for physics. With the latest materials science-related EU projects it is fast becoming a basis for other domain-specific efforts to be applied in interoperational software for high-throughput computing, machine learning/AI, and seamless data sharing. Other efforts are domain-specific ontologies often tied to specific materials databases, e.g., the MetaInfo structure of NOMAD. Other examples of materials-oriented ontologies include MatOnto, MatOWL, NanoParticle, and MMOY. There are also many well-established materials science glossaries, such as the Pauling file and Electronic Structure Library.
Community-driven standardizationFor future use in standardisation and data integration, there appears to be a need to move to a more community-driven effort to design ontologies practically useful across databases, research software and AI-based approaches, e.g., machine learning. OPTIMADE has been highly successful as a community-driven effort to develop a common API for materials database data access with engagement from many major materials databases. The OMDI2021 workshop aims to leverage the part of that community interested in community-driven ontologies for materials-database interoperability and put it in contact with others already involved in ontology development for materials science, as well as researchers in semantic methods and ontologies.
Organisers Show/Hide content
Core workshop organisers
Rickard Armiento, Linköping University, Sweden
Welzel Andersen, EPFL, Switzerland
Patrick Lambrix, Linköping University, Sweden
Gareth Conduit, University of Cambridge, United Kingdom
Cormac Toher, Duke University, NC, United States of America
Luca Ghiringhelli, Fritz-Haber-Institut der
Scientific advisory board
Saulius Gražulis, Vilnius University, Lithuania
Giovanni Pizzi, EPFL, Switzerland
Gian-Marco Rignanese, UCLouvain, Belgium
Markus Scheidgen, Humboldt Universität zu Berlin, Germany
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Invited speakersPeter Murray-Rust, University of Cambridge, UK
Ellad Tadmor, University of Minnesota, USA
James Hester, ANSTO, Australia
Emanuele Ghedini, University of Bologna, Italy
Matthew Horton, Berkeley National Lab, US
Evgeny Blokhin, Tilde Materials Informatics, Germany
Thomas Hagelien, SINTEF Ocean, Norway
Zachary Trautt, NIST, USA
Davide Di Stefano, Ansys, UK
Toshihiro Ashino, TOYO University, Japan
Olga Wodo, University at Buffalo, USA
Talks from organisational teamLuca Ghiringhelli, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Germany
Patrick Lambrix, Huanyu Li, Linköping University, Sweden
Casper Andersen, Giovanni Pizzi, EPFL, Switzerland
Saulius Gražulis, Andrius Merkys, Vilnius University, Lithuania
Cormac Toher, Duke University, NC, USA
Gareth Conduit, University of Cambridge, UK
Gian-Marco Rignanese, UCLouvain, Belgium
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Earlier workshop: Optimade 2019 Show/Hide content
These pictures are from the OPTIMADE 2019 (June 11 - 14) workshop at the CECAM headquarters in Lausanne, Switzerland.
Click here for more information about the CECAM flagship workshop "Open Databases Integration for Materials Design": OPTIMADE 2019