RDF Generation and Linking using Open Refine Daniel Vila-Suero
-
Upload
melvyn-freeman -
Category
Documents
-
view
215 -
download
0
description
Transcript of RDF Generation and Linking using Open Refine Daniel Vila-Suero
![Page 2: RDF Generation and Linking using Open Refine Daniel Vila-Suero](https://reader036.fdocuments.us/reader036/viewer/2022081815/5a4d1b5e7f8b9ab0599ac3a5/html5/thumbnails/2.jpg)
Introduction
• Learn how to use Open Refine and its RDF extension• Map tabular data to RDF• Link entities to a external dataset
![Page 3: RDF Generation and Linking using Open Refine Daniel Vila-Suero](https://reader036.fdocuments.us/reader036/viewer/2022081815/5a4d1b5e7f8b9ab0599ac3a5/html5/thumbnails/3.jpg)
Overview
3
![Page 4: RDF Generation and Linking using Open Refine Daniel Vila-Suero](https://reader036.fdocuments.us/reader036/viewer/2022081815/5a4d1b5e7f8b9ab0599ac3a5/html5/thumbnails/4.jpg)
Installation
• Download Open Refine at:• http://openrefine.org/download.html
• Download the RDF Extension at:• http://refine.deri.ie/
![Page 5: RDF Generation and Linking using Open Refine Daniel Vila-Suero](https://reader036.fdocuments.us/reader036/viewer/2022081815/5a4d1b5e7f8b9ab0599ac3a5/html5/thumbnails/5.jpg)
Installing the RDF Extension
• Make sure "extensions" folder exists in your Google Refine workspace
• Download the extension• Extract the downloaded zip file to the "extensions" folder• Start/Restart Google Refine
![Page 6: RDF Generation and Linking using Open Refine Daniel Vila-Suero](https://reader036.fdocuments.us/reader036/viewer/2022081815/5a4d1b5e7f8b9ab0599ac3a5/html5/thumbnails/6.jpg)
Data
• Download available at:http://data.freeyourmetadata.org/powerhouse-
museum/phm-collection-cleaned.zip
![Page 7: RDF Generation and Linking using Open Refine Daniel Vila-Suero](https://reader036.fdocuments.us/reader036/viewer/2022081815/5a4d1b5e7f8b9ab0599ac3a5/html5/thumbnails/7.jpg)
Task 1
• Inspect the data • Pre-process if neccesary
![Page 8: RDF Generation and Linking using Open Refine Daniel Vila-Suero](https://reader036.fdocuments.us/reader036/viewer/2022081815/5a4d1b5e7f8b9ab0599ac3a5/html5/thumbnails/8.jpg)
Task 2
• Using the RDF extension map the data to RDF using a selection of vocabularies
![Page 9: RDF Generation and Linking using Open Refine Daniel Vila-Suero](https://reader036.fdocuments.us/reader036/viewer/2022081815/5a4d1b5e7f8b9ab0599ac3a5/html5/thumbnails/9.jpg)
Task 3
• Using a reconciliation service try to find entities within your data that have URIs in other dataset.
• For example the LCSH (Library of Congress Subject Heading) with the following configuration:• Name: LCSH (preprocessed)• Endpoint URL: http://sparql.freeyourmetadata.org/• Graph URI:
http://sparql.freeyourmetadata.org/authorities-processed/
• Type: Virtuoso• Label properties: check only skos:prefLabel