Metabolomics Workbench Knowledge Graph (MWKG).
MWKG is a Neo4j graph database for the metadata associated with the metabolomics studies available at the Metabolomics Workbench (MW), also known as the National Metabolomics Data Repository (NMDR).
MWKG can be used to retrieve a specific study/project and explore its data, discover and retrieve studies associated with a Condition (disease/phenotype/perturbation) or a Sample/Species/Analytical method and perform Analytics such as centrality detection (Degree/Eigenvector/PageRank), community detection (Louvain/Label propagation) and finding a common link between entities (Shortest Path). MWKG is based on Neo4j, uses Bloom for visualization and is currently hosted on a local Linux desktop. It will be ported to a publicly available server soon. MWKG tutorial provides an overview.