Human Metabolome Database
Description: A freely available electronic database containing detailed information about small molecule metabolites found in the human body
Cross-references: https://github.com/NCATSTranslator/Translator-All/wiki/HMDB
Synonyms: HMDB
Edge Categories Distribution
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Epistemic Robustness
Epistemic Robustness measures the provenance quality of edges from this knowledge source, using Knowledge Level and Agent Type from the Biolink Model to assess evidence strength and reliability. Higher scores indicate stronger evidence and greater manual curation.
1.00
Average Epistemic Score
Average Epistemic Score
1.00
Knowledge Level Score
Most common: Knowledge Assertion
Knowledge Level Score
Most common: Knowledge Assertion
1.00
Agent Type Score
Most common: Manual Agent
Agent Type Score
Most common: Manual Agent
2,805,520
Edges Included
Edges Included
0
Edges with Missing Provenance
(Both Knowledge Level and Agent Type not provided)
Edges with Missing Provenance
(Both Knowledge Level and Agent Type not provided)
Edge Type Validation
This section shows the validation of edge types in this knowledge source against the recognized biolink schema patterns.
1,875,753
Recognized Edges
( 76.9 %)
Recognized Edges
( 76.9 %)
563,277
Unrecognized Edges
( 23.1 %)
Unrecognized Edges
( 23.1 %)
ABox / TBox Classification
The TBox-to-ABox balance reflects how much a knowledge graph emphasizes abstract schema versus concrete instances—too much of either can hinder effective learning and reasoning.
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1,567,156
ABox Edges
( 64.3 %)
ABox Edges
( 64.3 %)
2,386
TBox Edges
( 0.1 %)
TBox Edges
( 0.1 %)
869,488
Undefined
( 35.6 %)
Undefined
( 35.6 %)