AUTHOR=Venkataramanan Revathy , Tripathy Aalap , Kumar Tarun , Serebryakov Sergey , Justine Annmary , Shah Arpit , Bhattacharya Suparna , Foltin Martin , Faraboschi Paolo , Roy Kaushik , Sheth Amit TITLE=Constructing a metadata knowledge graph as an atlas for demystifying AI pipeline optimization JOURNAL=Frontiers in Big Data VOLUME=7 YEAR=2025 URL=https://www.frontiersin.org/journals/big-data/articles/10.3389/fdata.2024.1476506 DOI=10.3389/fdata.2024.1476506 ISSN=2624-909X