Fig. 1 IXDB search flow62Since the databases of each country have different terminology and table structures, we carried out “unification of vocabulary” and “unification of knowledge” to achieve cross-national searches; we normalized the material names and absorption edge names using the NIMS vocabulary management system MatVoc [1], and also made the XAFS concept, which is common to the target databases, ontologically machine-readable. The International XAFS Database Portal (IXDB [2], Fig. 1) based on this framework has been implemented on the website of the Japanese XAFS Society, and it is now possible to perform cross-searches of more than 3000 spectra recorded in four databases around the world.Implementation of an Ontology Framework for Integrating Synchrotron Radiation DataX-ray absorption fine structure (XAFS) is a typical synchrotron radiation experimental method, and since the interpretation of data is deepened by cross-referencing the spectra, there are many spectral databases around the world. We developed and implemented an ontology framework to make XAFS spectra around the world findable.P2-11Masashi Ishii1 and Asahiko Matsuda21 Center for Basic Research on Materials, National Institute for Materials Science (NIMS)2 Materials Data Platform, National Institute for Materials Science (NIMS)[1] NIMS Materials Vocabulary, MatVoc, https://matvoc.nims.go.jp/wiki/Main_Page. [2] Japanese XAFS society, International XAFS DB portal, https://ixdb.jxafs.org/.
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