Maternal-Fetal-Placental Federated Knowledge Graph Explorer

Expert prototype for dataset discovery, relationship browsing, consent-aware federation, and research design.
Domain-clustered knowledge graph
Click a node to inspect. Drag to orbit. Scroll to zoom. Use filters on the left.
0 nodes / 0 links visible after filtering
1. Source Connectors
CDC WONDER, DASH, dbGaP, HCA, CELLxGENE, Census, EPA, FHIR, OMOP, portals.
2. Harmonization
Map raw variables to standard concepts: gestational age, birth weight, preeclampsia, placenta sample, PM2.5.
3. Ontology Layer
SNOMED CT, LOINC, HPO, Uberon, Cell Ontology, GA4GH DUO, local pregnancy ontology.
4. Knowledge Graph
Mother → Pregnancy → Placenta → Fetus/Newborn → Outcome, linked to omics, environment, social reality.
5. Privacy & Consent
Keep raw patient/genomic data local. Centralize metadata, aggregate counts, policies, and approved features.
6. Expert Explorer
Dataset discovery, relationship inspection, query templates, research design, reproducibility checks.
Query Builder

          

          

        

      


      

        

          

            
Direct API / Swagger / Portal References

            

          

          

            
Suggested Gateway Contract

            
GET  /datasets?outcome=preterm_birth&hasPlacenta=true&hasGenomics=true
GET  /variables?standard=LOINC&domain=obstetrics
GET  /cohorts/{id}/metadata
GET  /nodes/{id}/neighbors
POST /federated-query
POST /sparql
POST /graphql
GET  /beacon
GET  /openapi.json
GET  /swagger-ui

            

            
Private and controlled sources should return metadata, aggregate counts, and approved derived features unless a researcher has IRB, DUA, and platform authorization.