Museum Linked Data Browser: The Duchamp Research Portal

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Getting Started

Orientation for cataloguers, field specialists, and DH researchers
Orientation for developers
Common language: integration and reconciliation
Reviewing your modeled data
The model's relationship to linked.art and other linked data models

Technologies Overview

Data sources
Data layers and transforms
Actions you can take
Technology stack
Data releases
Image management
Search
Language and localization

Data Models

Basic patterns from Linked.Art
Images
Museum data
Archives data
Person, Organization and Group data
Vocabularies

Data to Curate Relationships

Direct curated relationships
Faceted relationships
Indirect relationships

Images

Images

  • Images are served using a IIIF Image API 2.0-compliant server, Cantaloupe, fed JPEG 2000 images that have been compressed from source TIFFs + JPEGS.
  • Image metdata (which comes from a variety of semi-structured sources) is fetched at build time from an S3 bucket where PMA staff has collected hi-resolution TIFF files, and derived from HTTP URLs where necessary in the case of the JSON-based Navigart and PMA TMS APIs.
  • Compressed images are discovered with a SPARQL query against the integrated linked data and then compressed in a batch process.

Special considerations

  • Unexpected TIFF compression profiles

All TIFF files are forced uncompressed during normalization and bit depths are normalized to 8bpp.

  • Colorspace

Colorspaces that are not sRGB are converted during normalization.

  • Multipage TIFFs

Multipage TIFF files should be pre-processed using the data pipeline's included script (accessible from pipeline workflows stage-images).

References

  • TBD