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ID  November 2019

ID November 2019

Subject:

LCNAF bulk download pilot

From:

Matt Miller <[log in to unmask]>

Reply-To:

LC Linked Data Service Discussion List <[log in to unmask]>

Date:

Tue, 12 Nov 2019 15:47:22 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (26 lines)

Hello,
We are testing a new bulk export process for LCNAF and would like to hear any feedback from anyone who uses the bulk downloads. The new bulk files can be found http://id.loc.gov/download/ with the titles LC Name Authority File (LCNAF) *NEW Pilot*
            
New:
 - New compacted JSON-LD  serialization
 - The JSON-LD and XML files are now newline delimited meaning each line in the file is a completely self-contained record
 - There are void files for each download with the date the export was created, title, description and MD5 hash of the unzipped download.
 - The N-Triple file has records separators now as comments, each group of triples start with “# Start of n12345678”
 - Increased updated frequency.
            
The same:
 - The new LCNAF export will contain the same data as before, but is slightly more verbose.
 - It is available in MADSRDF, SKOS and both combined MADSRDF and SKOS in all serializations.
            
Thinking of removing:
 - The current XML dump is one large XML file, the new XML is each record as RDF XML on its own individual line. The current XML file could be used for bulk loading into a triple store, but the current and future NT file could be used in the same way. Is anyone using the current XML dump file for bulk loading?
 - The Turtle serialization


Feel free to reply to this post or create an issue here: https://github.com/lcnetdev/lc-bulk-export-pilot           

            

Thanks for any feedback,
Matt Miller

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