Vocabulary
HED
Hierarchical Event Descriptors
A structured vocabulary and annotation system for describing experimental events in time-series data such as EEG, MEG, fMRI and behavior.
Source & access
- homepage hedtags.org HTTP 200
- repository github.com HTTP 200
Automated evaluation
F Findable FAIR3/12
- Persistent identifier (F1)no PURL / w3id / DOI for the artefact0
- Indexed in services (F4)not indexed anywhere0
- Citable reference (F2)doi:10.1007/s12021-021-09537-4+3
A Accessible FAIR9/12
- Homepage reachableHTTP 200+3
- Artefact retrievable over HTTP(S) (A1)repository HTTP 200+6
- Metadata persists in a registry (A2)not in Bioregistry or OBO Foundry0
I Interoperable FAIR8/12
- Formal machine-readable format (I1)OWL+5
- Semantic-web IRIs (I2)OWL+3
- References other vocabularies (I3)no imported vocabularies found0
R Reusable FAIR7/12
- Clear license (R1.1)CC-BY-4.0+5
- Release provenance (R1.2)mouse_v1.0.0 (latest GitHub release); not declared inside the artefact+2
- Community standards (R1.3)no independent compliance report (not on the OBO Dashboard)0
Q Ontology consistency & quality0/20
- Upper-ontology alignmentno BFO/COB/DOLCE import found0
- Standard relations (RO)does not import the Relation Ontology0
- Logical consistencynever checked by a reasoner0
- ROBOT report: no errorsno ROBOT report available0
- ROBOT report: warning densityno ROBOT report available0
- Scaled 0/16 → 20OOPS! pitfall scan unavailable for this run0
M Maintenance15/16
- Recency2026-10-25 → 0.0 months (≤ 3 months)+10
- Release cadence (12 months)4 releases (GitHub releases)+5
U Community adoption3/16
- Documented adopting projects2 projects+2
- Reused by other ontologies00
- Community signalmax(stars 3 → 0, citations 12 → 1)+1
P Penalties (inactivity & inconsistency)0
- Time since last activity0.0 years → 4 × max(0, 0.0 − 1)0
- Inactive statusnot archived, legacy or inactive0
FAIR subtotal 27/48 · earned 45/100 = 45/100 → grade D
Community adoption 2
- BIDS
Event annotation in events.tsv sidecars
Curated by NeuroSchema - EEGLAB
HED tools plugin
Curated by NeuroSchema
Know a project that uses HED? Suggest it.
History & changes 6 runs
Score over time
- Score: 45 → 37 (grade D → E) · rubric v3.0 → v3.3
- Score: 40 → 45
- Score: 77 → 40 (grade B → D) · rubric v2.2 → v3.0
- Score: 72 → 77 · rubric v2.0 → v2.2
- Evaluated version: commit ffa376f → mouse_v1.0.0
- Score: 79 → 72 · rubric v1.0 → v2.0
- Evaluated version: — → commit ffa376f
| Run | Score | FAIR | Version evaluated | Terms | Snapshot |
|---|---|---|---|---|---|
| 25 Oct 2026, 19:23 UTC | 37 E | 24 | mouse_v1.0.0 | — | JSON |
| 25 Oct 2026, 19:10 UTC | 45 D | 27 | mouse_v1.0.0 | — | JSON |
| 25 Oct 2026, 18:49 UTC | 40 D | 27 | mouse_v1.0.0 | — | JSON |
| 25 Oct 2026, 18:21 UTC | 77 B | 50 | mouse_v1.0.0 | — | JSON |
| 25 Oct 2026, 18:08 UTC | 72 B | 45 | commit ffa376f | — | JSON |
| 25 Oct 2026, 17:55 UTC | 79 B | — | — | — | JSON |
Provenance
Every fact on this page was fetched automatically. Each row shows where it came from and when. If a source fails, the last good value is kept and marked “carried forward”.
| Fact | Source | Retrieved |
|---|---|---|
| Homepage link check (HTTP 200) | hedtags.org | 25 Oct 2026, 19:10 UTC |
| Repository link check (HTTP 200) | github.com | 25 Oct 2026, 19:10 UTC |
| Git refs (commit ffa376f, latest tag v8.5.0) | github.com | 25 Oct 2026, 19:10 UTC |
| GitHub repository statistics | api.github.com | 25 Oct 2026, 19:10 UTC |
| Crossref citations (doi:10.1007/s12021-021-09537-4) | api.crossref.org | 25 Oct 2026, 19:10 UTC |
Run 2026-10-25T19-10-16Z · evaluator v2.0.0 · rubric v3.0 · entry.json · run snapshot
How to cite
- Building FAIR Functionality: Annotating Events in Time Series Data Using Hierarchical Event Descriptors (HED) (2022) · doi:10.1007/s12021-021-09537-4 · 12 citations