NSF launches linked-data queries through the Open Knowledge Network
The NSF Open Knowledge Network gives researchers public tools for querying linked datasets, with the value of each connection still dependent on identifiers, source quality and the question being asked.
NSF launched the Open Knowledge Network on September 25, giving researchers a public environment for querying linked datasets.
It addresses a common obstacle: establishing whether records with different names in separate collections describe the same facility, species or place.
The network brings knowledge graphs across several domains into a public query environment. A graph represents entities and stated relationships between them. Connecting graphs can let a question cross collection boundaries without requiring the researcher to assemble every source into a new dataset first. That is infrastructure for inquiry, rather than a guarantee that every stored statement is true.
Its identifier guidance supplies the critical mechanism. A stable reference identifies a concept within a vocabulary; explicit mappings can connect corresponding references in other vocabularies. Names alone are often insufficient. A place-name match that ignores geography, or a biological term that conceals different definitions, can turn an apparently successful join into a scientific mistake.
The public sample library makes the opportunity concrete. Examples include finding studies associated with influenza, connecting publications to datasets and retrieving facilities by industry classification. These are documented query patterns, not analyses independently reproduced for this edition. Their specificity gives a small team a better starting point than an undirected request to “find insights” across the whole network.
A sensible first use is to choose one question, inspect the relevant graphs and adapt a short example. Save the query and its output, then follow a returned relationship to its source. The new convenience is the ability to ask connected questions. The obligation to examine what an answer actually means remains with the researcher.
Take it further
Try a documented linked-data query Choose one example, retain its selected graphs and trace a returned relationship to its source. The query examples were inspected; this edition did not execute them.
Sources & details 5 sources
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Paste the brief into your voice app to discuss this reporting.Revised 4 October 2026. Reporting and visuals refined. Original source dates and prior checks retained.
Reporting sources
- NSF — September 25 launch
NSF reports 43 graphs at launch; the changing registry should not be treated as a fixed current count.
- Open Knowledge Network — identifiers
How identifiers and mappings connect collections.
- Open Knowledge Network — sample queries
Public examples opened; this edition did not execute the queries.
- Open Knowledge Network — query guide
Collection selection, saved queries and result export.
- SAWGraph — facility register
EPA facility records and industry classifications; no contamination attribution.