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Materials Data Repository metadata schema and cross-database federation
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The Materials Data Repository (MDR) was released in 2020 as one of the services of the DICE materials data platform. Works deposited to MDR are assigned DataCite DOIs, allowing integration with external services such as Data Citation Index. Significant effort was devoted to implement a metadata schema with a focus on PIDs and support for specimen, methods, and instrument metadata. A YAML-based schema was adopted, developed alongside a new system to natively support the new schema. Using works deposited to MDR as instances, we can define an ontology for data linking and federation. The work instance can be linked to triple graphs for both XAFS and HAXPES while retaining the schema. Difficulties remain in spreading awareness of metadata management as an ongoing effort.
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| Thumbnail | Title | Date Uploaded | Size | Visibility | Actions |
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EUROMAT-MDR.pdf | 208 KB | MDR Open |
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EUROMAT-NIMS-Matsuda-v2mdr.pdf | 1.52 MB | MDR Open |
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