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Hierarchical Event Descriptors
Last uploaded:
July 3, 2024
Acronym | HED |
Visibility | Public |
Description | HED (Hierarchical Event Descriptors) is a standardized vocabulary for describing what happens during experiments and a framework for mapping these terms and other metadata onto the experimental timeline to enable analysis. HED is a subtag system organized by the top-level categories: Event, Agent, Action, Item, Property, and Relation. Users create HED annotations as comma-separated, parenthesized lists of terms. See https://www.hed-resource.org for documentation, tutorials and other resources. Recently we have created an ontology representation of the HED vocabulary (HED schema) to provide a better mechanism for linking the HED terms to terms from other ontologies and to provide better provenance information. The HED tags as well as auxiliary information such as types of units and types of values are represented as classes. The HED schema attributes are represented either as DataProperty or ObjectProperty depending on their range. Some additional attributes that are not inherited are represented as AnnotationProperty. HED is the standard used for event annotation in BIDS (Brain Imaging Data Structure) a standard for storing neuroimaging repository and is used by datasets on several repositories such as openNeuro and Nemar. |
Status | Production |
Format | OWL |
Language | English |
Contact | Kay Robbins, kay.robbins@utsa.edu |
Categories | Vocabularies |
Version | Released | Uploaded | Downloads |
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releases/2024-06-10 (Parsed, Indexed, Metrics, Annotator) | 07/03/2024 | 07/03/2024 | OWL | CSV | RDF/XML |
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Id | http://purl.org/hed/releases/2024-06-10/hed/HED_0000001
http://purl.org/hed/releases/2024-06-10/hed/HED_0000001
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Preferred Name | HedEntity |
Definitions |
Used to anchor all items in both the structural schema and the tags.
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Type | http://www.w3.org/2002/07/owl#Class |
All Properties
label | HedEntity
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comment | Used to anchor all items in both the structural schema and the tags.
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prefLabel | HedEntity
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description | Any item in the HED ontology.
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prefixIRI | hed:HED_0000001
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subClassOf | |
type |
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Add NCBO Web Widgets to your site for HED
Widget type | Widget demonstration |
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Step 2: Follow the Instructions
For more help visit NCBO Widget Wiki |
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Example 1 (start typing the class name to get its full URI)
Example 2 (get the ID for a class) Example 3 (get the preferred name for a class) Step 2: Follow the Instructions
For more help visit NCBO Widget Wiki |
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Step 2: Follow the InstructionsCopy the code below and paste it to your HTML page <iframe frameborder="0" src="/widgets/visualization?ontology=HED&class=http%3A%2F%2Fpurl.org%2Fhed%2Freleases%2F2024-06-10%2Fhed%2FHED_0012387&apikey=YOUR_API_KEY"></iframe> For more help visit NCBO Widget Wiki |
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Step 2: Follow the InstructionsCopy the code below and paste it to your HTML page <link rel="stylesheet" type="text/css" href="/widgets/jquery.ncbo.tree.css"> <script src="/widgets/jquery.ncbo.tree-2.0.2.js"></script> <div id="widget_tree"></div> var widget_tree = $("#widget_tree").NCBOTree({ apikey: "YOUR_API_KEY", ontology: "HED" }); You can also view a detailed demonstration For more help visit NCBO Widget Wiki |