This 20-minute webinar will give a top-level overview of the resources we offer for looking up metadata and for matching DOIs to citations. We'll cover tools and APIs for retrieving metadata records, as well as what metadata is available.
Webinar held April 27, 2017
4. more metadata
reference lists, funding data, ORCIDs, license
data, clinical trial numbers, errata, retractions,
updates and more through our Crossmark
service, JATS-formatted abstracts, relationships
between items…
5. What do you want to do?
• Look up metadata for a DOI
• Match a reference / metadata to a DOI
• Look up / retrieve metadata based on defined
criteria
• Get everything
6. Have a DOI?
Metadata Search ( https://search.crossref.org )
REST API
XML API
OpenURL
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13. XML metadata records!
XML API:
http://doi.crossref.org/search/doi?
pid=youremail@example.org&format=unixsd&doi=10.1162/152651
601750079104
OpenURL:
https://www.crossref.org/openurl?
pid=youremail@example.org&format=unixsd&id=doi:
10.1162/152651601750079104&noredirect=true
15. Match reference to record/DOI!
Metadata?
Exact match:
- XML API (need to mark up)
Needs evaluation:
- Metadata Search
- REST API
Formatted reference?
Exact match:
- Simple Text Query form
- XML API (some limitations)
Needs evaluation:
- Metadata Search
- REST API
16. Needs evaluation:!
- not always exact !
- will return approximate results!
- will also return other stuff !
Good for: !
finding approximate results, working with
messy data, evaluating matches on your own!
Exact:!
- field-by-field match!
- match or no match at all!
Good for: !
auto-populating lists of references!
19. XML API!
• Match references to DOIs
• Login required but most
queries are free
• Good for reference linking
HTTPS
20. XML API!
<query key="CR3" enable-multiple-hits="false"
forward-match="true” secondary-query="author-title">
<journal_title>Antiquity</journal_title>
<author search-all-authors="true">Anderson</
author>
<volume>87</volume>
<issue>337</issue>
<first_page>879</first_page>
<year>2013</year>
</query>
more info: https://support.crossref.org/hc/en-us/sections/202815006
21. XML API!
<query enable-multiple-hits="false" key="key1">
<article_title match="fuzzy">Concluding remarks</
article_title>
<author search-all-authors="true">Somiari</
author>
</query>
Author / title query
22. XML API!
<query key="q1" enable-multiple-hits="true">
<unstructured_citation>Hungate, B. A., &
Hampton, H. M. (2012). Ecosystem services: Valuing
ecosystems for climate. Nature Climate Change, 2(3),
151-152.</unstructured_citation>
</query>
Unstructured citation
23. OpenURL!
• Match metadata to DOIs
• Free but login required
https://doi.crossref.org/openurl?
issn=03770273&aulast=Walker&volume=54&spage=117&date=1983&redirect=fa
lse&pid=username:password
24. • Search by title fragment, author name
• Find works related to an ORCID
• Search by ISSN
• Search by grant / award number
• Include / exclude terms (using + and !)
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26. REST API!
• Search, filter, facet, and sample Crossref metadata
• No login, no fee
• Do whatever you want with the metadata:
• Search
• Report on funding, publishing, author activities
• Ingest scholarly metadata
• Locate full text for content mining
27. All records for a prefix:
http://api.crossref.org/prefixes/10.xxxx/works
All records with funder information:
http://api.crossref.org/prefixes/10.xxxx/works?filter=has-funder-doi:true&rows=0
All records for a prefix with funder information:
http://api.crossref.org/prefixes/10.xxxx/works?filter=has-funder-doi:true
All records with a given funder published in 2017:
http://api.crossref.org/works?filter=is-update:true,from-pub-date:2017-01-01,funder:
10.13039/100000001,funder:10.13039/100000050
All records with ORCIDs:
https://api.crossref.org/works?filter=has-orcid:true
All records containing a given term:
http://api.crossref.org/works?query=quokka
REST API (https://api.crossref.org)