Dataset

Matminer dataset registry

Matminer package and dataset registry for benchmark materials datasets including elastic tensors, physical properties, and machine-learning-ready materials records.

HackingMaterials
Materials informatics
Mechanical properties
Materials datasets
Machine learning
Project: Matminer
Published by admin
en

Metadata-only record

This entry is a public catalogue pointer: it links to an external website or repository, but no RDF graph/entities have been published in MatPortal yet. Browse graph-rich public records to explore RDF resources, SPARQL, and GraphRAG features.

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1

Files & access

68%

Quality

Dataset identity

Stable URI
https://datagraph.dev.matportal.org/id/dataset/github-hackingmaterials-matminer-datasets Open
Portal page
/datasets/github-hackingmaterials-matminer-datasets Open
RDF Turtle
https://datagraph.dev.matportal.org/data/dataset/github-hackingmaterials-matminer-datasets.ttl Open
License
BSD-3-Clause
Publisher
HackingMaterials
Published by
admin
Project
Matminer
Version
Not specified
Identifier
github-hackingmaterials-matminer-datasets

What is available here?

  • A stable MatPortal dataset identifier and machine-readable metadata.
  • Public source/documentation links for the external portal or repository.
  • No MatPortal-hosted RDF graph, RDF resources, GraphRAG evidence, or SPARQL graph query yet.

Use the browse page sorted by RDF resources to find public datasets with named graphs, entity pages, SPARQL starters, and GraphRAG evidence.

Related ontologies and catalogue context

Materials informatics
Mechanical properties
Materials datasets
Machine learning
PMDCO
materials
elastic tensor
machine learning
benchmark

Files & access

1 file/access item

GitHub repository

Matminer package and dataset registry for benchmark materials datasets including elastic tensors, physical properties, and machine-learning-ready materials records.

git
text/html
Open file/access URL

File preview

Preview metadata is available, but no preview rows were returned.

Named graphs

Query this data

No public graph releases are available for this dataset yet.

RDF resources

Entity previews will appear after public graph indexing.

Ask this dataset with GraphRAG

GraphRAG searches MatPortal's public dataset metadata, named graph metadata, indexed RDF resources, and facts. It does not copy or vectorize every external file or raw distribution.

Clear

Ask a question above to get a graph-aware answer and a safe SPARQL starting point.

Indexed sources

  • Dataset Metadata
  • Distribution

Query this dataset

Use the guarded public SPARQL workbench with a dataset graph template. Only read-only SELECT queries with limits are accepted.

SELECT ?s ?p ?o WHERE { ?s ?p ?o } LIMIT 100
Open in SPARQL workbench

Graph-aware Q&A readiness

  • Dataset Metadata
  • Distribution

Dataset quality and readiness

Score
68%
Maturity
review_ready
Publication boundary
Public output is derived from reviewed public dataset/resource/graph metadata only.

Checks and recommendations

  • Core metadata completeness
  • Persistent identifier and citation readiness
  • License availability
  • File, service, or access-resource links
  • Ontology and linked-data context
  • Unit and quantity-kind validation
  • Governance and review state

Dataset FAIR assessment

FAIR assessment is not available yet.

Unit profile

{
  "valid": true,
  "score": 1.0,
  "checked_fields": [],
  "issues": [],
  "profile": "matportal-materials-qudt-lite-v1"
}

Semantic dataset passport

Passport ID
github-hackingmaterials-matminer-datasets
DCAT
https://datagraph.dev.matportal.org/id/dataset/github-hackingmaterials-matminer-datasets
Review status
published

Semantic mirror manifest

{
  "@context": {
    "dcterms": "http://purl.org/dc/terms/",
    "dcat": "http://www.w3.org/ns/dcat#",
    "prov": "http://www.w3.org/ns/prov#",
    "matportal": "https://w3id.org/matportal/schema#"
  },
  "id": "https://datagraph.dev.matportal.org/api/v1/datasets/github-hackingmaterials-matminer-datasets/mirror-package",
  "type": "matportal:SemanticMirrorPackage",
  "dataset": "https://datagraph.dev.matportal.org/datasets/github-hackingmaterials-matminer-datasets",
  "dataset_slug": "github-hackingmaterials-matminer-datasets",
  "generated_at": "2026-07-16T23:42:31.847693+00:00",
  "raw_data_policy": "linked-only; no raw data copied by this package",
  "publication_boundary": "review artefact; downstream data-space publication remains governed",
  "contains": [
    "dcat-jsonld",
    "datacite-style-metadata",
    "ro-crate-metadata",
    "ckan-package-json",
    "edc-asset-json",
    "aas-submodel-semantic-ids",
    "sssom-mapping-snapshot",
    "shacl-shape-scaffold",
    "review-record"
  ],
  "counts": {
    "resources": 1,
    "graphs": 0,
    "indexed_entities": 0,
    "mappings": 0,
    "unit_fields_checked": 0
  },
  "source_authority": "MatPortal dataset metadata and linked external providers remain authoritative; connector cards preserve source links."
}

Material identity crosswalk

No public material identity crosswalk entries are linked to this dataset yet.

Machine access

Raw public metadata

{
  "id": "dataset_6faf5e89812eed28",
  "slug": "github-hackingmaterials-matminer-datasets",
  "title": "Matminer dataset registry",
  "description": "Matminer package and dataset registry for benchmark materials datasets including elastic tensors, physical properties, and machine-learning-ready materials records.",
  "license": "BSD-3-Clause",
  "creators": [
    "HackingMaterials"
  ],
  "organization": "HackingMaterials",
  "project": "Matminer",
  "published_by": "admin",
  "groups": [
    "Materials datasets",
    "Machine learning"
  ],
  "keywords": [
    "materials",
    "elastic tensor",
    "machine learning",
    "benchmark"
  ],
  "tags": [
    "materials",
    "elastic tensor",
    "machine learning",
    "benchmark"
  ],
  "visibility": "public",
  "status": "published",
  "ontology_annotations": [
    "PMDCO"
  ],
  "distributions": [
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      "title": "GitHub repository",
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      "visibility": "public",
      "status": "published",
      "media_type": "text/html",
      "format": "git",
      "checksum_sha256": "",
      "size_bytes": 0,
      "source_uri": "https://github.com/hackingmaterials/matminer",
      "download_url": "https://github.com/hackingmaterials/matminer",
      "access_url": "https://github.com/hackingmaterials/matminer",
      "uri": "https://datagraph.dev.matportal.org/id/distribution/github-hackingmaterials-matminer-datasets/resource_fcf193eb48ac8806",
      "url_type": "external",
      "rdf_format": null,
      "ontology_annotations": [],
      "data_dictionary": [],
      "views": [
        {
          "id": "",
          "title": "Download",
          "view_type": "download",
          "url": "",
          "embed_url": "",
          "embeddable": false,
          "description": "",
          "default": true,
          "config": {}
        }
      ],
      "datastore_active": false,
      "datastore_enabled": false,
      "has_views": true,
      "mapping_supported": false,
      "query_supported": false,
      "transform_provenance": {
        "was_derived_from": "https://github.com/hackingmaterials/matminer",
        "harvested_from": "GitHub public repository metadata",
        "metadata_only": true
      },
      "id": "resource_fcf193eb48ac8806",
      "dataset_slug": "github-hackingmaterials-matminer-datasets",
      "created_at": "2026-06-14T01:26:11.095685Z",
      "updated_at": "2026-06-14T01:26:11.095685Z"
    }
  ],
  "graph_ids": [],
  "entity_count": 0,
  "follower_count": 0,
  "contact_points": [],
  "publisher": "HackingMaterials",
  "homepage": "https://github.com/hackingmaterials/matminer",
  "landing_page": "https://github.com/hackingmaterials/matminer",
  "release_date": "",
  "modification_date": "",
  "version": "",
  "version_notes": "",
  "identifier": "",
  "frequency": "",
  "provenance": "Curated public GitHub dataset/repository candidate discovered for MatPortal Data browse. Metadata-only import; no repository contents downloaded.",
  "dataset_type": "repository",
  "temporal_coverage": [],
  "temporal_resolution": "",
  "spatial_coverage": [],
  "spatial_resolution_meters": null,
  "access_rights": "",
  "other_identifiers": [],
  "theme": [
    "Materials informatics",
    "Mechanical properties"
  ],
  "language": [
    "en"
  ],
  "documentation": [
    "https://github.com/hackingmaterials/matminer"
  ],
  "conforms_to": [],
  "is_referenced_by": [],
  "applicable_legislation": [],
  "has_version": [],
  "qualified_relations": [],
  "citation": "",
  "activity": [
    {
      "at": "2026-06-14T01:26:10.934699+00:00",
      "event": "dataset_created",
      "actor": "admin",
      "note": "Dataset registered in native DataGraph"
    },
    {
      "at": "2026-06-14T01:26:11.006479+00:00",
      "event": "dataset_imported",
      "actor": "admin",
      "note": "Imported/updated from curated public GitHub discovery."
    },
    {
      "at": "2026-06-14T01:26:11.095685+00:00",
      "event": "resource_added",
      "actor": "admin",
      "resource_id": "resource_fcf193eb48ac8806",
      "note": "GitHub repository"
    }
  ],
  "metadata": {
    "publisher": "",
    "published_by": "admin",
    "contact_points": [],
    "homepage": "",
    "landing_page": "",
    "release_date": "",
    "modification_date": "",
    "version": "",
    "version_notes": "",
    "identifier": "",
    "frequency": "",
    "provenance": "",
    "type": "",
    "temporal_coverage": "",
    "temporal_resolution": "",
    "spatial_coverage": "",
    "spatial_resolution_meters": "",
    "access_rights": "",
    "language": [],
    "documentation": [],
    "conforms_to": [],
    "is_referenced_by": [],
    "applicable_legislation": [],
    "has_version": [],
    "qualified_relation": [],
    "qualified_attribution": [],
    "extras": {}
  },
  "created_at": "2026-06-14T01:26:10.934699Z",
  "updated_at": "2026-06-14T01:26:11.095685Z"
}