1. HED publications

Explanation of the history, development, and motivation for third generation HED:

Robbins, K., Truong, D., Jones, A., Callanan, I., & Makeig, S. (2020, August 1). Building FAIR functionality: Annotating events in time series data using Hierarchical Event Descriptors (HED).

Detailed case study in using HED-3G for tagging:

Robbins, K., Truong, D., Appelhoff, S., Delorme, A., & Makeig, S. (2021, May 7). Capturing the nature of events and event context using Hierarchical Event Descriptors (HED). BioRxiv, 2021.05.06.442841.

2. Working documents

Mapping of HED terms and their descriptions to known ontologies is:

Two other working documents hold portions of the HED-3G specification that are under development and will not be finalized for Release 1:

3. Schema viewers

The HED schema is usually developed in .mediawiki format and converted to XML for use by tools. However, researchers wishing to tag datasets will find both of these views hard to read. For this reason, we provide links to three versions of the schema. The expandable HTML viewer is easier to navigate. Annotators can also use CTAGGER, which includes a schema viewer and tagging hints.

HED web-based schema vocabulary viewers.



Expandable HTML



4. HED Websites

The following is a summary of the HED-related websites

HED websites.



Information and documentation

HED organization website

HED organization github

HED specification repository

Examples of HED annotation

HED documentation website

HED Python resources

Python code repository

Python validator and tools

HED JavaScript resources

HED JavaScript code

BIDS validator

HED Matlab resources

Matlab source code

Annotator resources

CTAGGER executable jar

CTAGGER repository

Java repository

Online HED tools

Online website

Docker deployment