crossref metadata and metadata services
TRANSCRIPT
Crossref Metadata
<Metadata>
•What is Crossref metadata•Who uses Crossref metadata services•How Crossref provides this content
Crossref Metadata Services
• Many discovery services rely on bibliographic metadata from publishers
• An increasing number of services are using citation analysis
• Publishers have different, non-standard formats
• It is difficult to locate metadata for book chapters
• Publishers have an interest in increasing the discoverability of their content
CrossRef metadata is available for thousands of publishers and millions of scholarly documents in the same
XML format
Metadata services users
Can locally host Crossref metadata (including many references)
Can use Crossref metadata for citation analysis
Who is it for?
• Organizations that want to supplement metadata from other sources
• Organizations providing citation metrics
• Document delivery providers• Discovery services• Search engines• Content aggregators
Optional opt-out
To make sure CrossRef Affiliates receive your references, make sure not to opt-out of references
(By default you are opted-in)
Users include:Academic Analytics, LLCAcademic Medical CenterAiriti, Inc.Altmetric, LLCAmerican Chemical Society (ACS)CambiaColwiz LimitedCopyright Clearance Center, Inc. (CCC)DeepDyve, Inc.EasyBib.com (ImagineEasy Solutions)Elsevier, Inc.EMBL-EBIEx Libris Ltd.Global Digital CentralHindawi Publishing CorporationInstytut Bioinfobank Sp. z o.o.Labtiva, Inc.mapegy GmbHMESURNASA ADS
OCLCOntario Council of University Libraries (OCUL)PhilPapers FoundationPlum AnalyticsProQuest Information & LearningPTFS EuropeReprints DeskResearch SquareScholarMate, Ltd.Science-MetrixSciencescape, Inc.SunmediaSuweco, CZSymplectic, Ltd.Talis Education LimitedTechnical Information Center of Denmark (DTU Library)The Korean Federation of Science and Technology SocietiesThird IronUberResearch
• Search, filter, facet, sample Crossref metadata
• Free to use
• Do whatever you want with the data
• Code publicly available: http://github.com/CrossRef
Titles, authors, ISSNs, ISBNsBasic metadata
Journal articles, conference proceedings, data, standardsFunding Information
Funder identifiers, award numbers
License InformationLicense URIs (NISO ALI)
Full-text locationsURIs direct to full-text articles (used in TDM)
ORCIDs
Significant updatesRetractions, corrections
Publishers Crossref
What are people doing with it?
• Search services (including Crossref’s funding and metadata searches)
• Bibliography / PDF library management tools• Reporting on funding activities, publishing• activities, author activities• Ingest of scholarly metadata (OAI-PMH
replacement) and metadata lookup• Locating full-texts for content mining
Example from Kudos
methods to retrieve metadata
`
api.crossref.org
doi.crossref.org
oai.crossref.org
• also known as our REST-API• used retrieve data for specific sets of DOIs, based on resources and filters defined by the API syntax• no login required and no fee• SLA based service to be available in 2017 (for a fee)
• also known as our XML-API• legacy Crossref query logic which supports reference and Cited-by linking• login required, no fee, some requests types limited to members only
• supports Crossref’s Metadata Service• bulk downloading of lots (up to the entire) Crossref metadata repository• login required and there is a fee• returns deposited references for DOIs (with an opt-out caveat)
http://api.crossref.org/works?filter=has-clinical-trial-number:true
http://doi.crossref.org/servlet/query?usr=***&pwd=***&type=q&format=unixsd&qdata=
<?xml version = "1.0" encoding="UTF-8"?><query_batch version="2.0" xmlns = "http://www.crossref.org/qschema/2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><head> <doi_batch_id>eXtyles Request AMP.dodge0724.doc__76</doi_batch_id></head><body>
<query key="Q1_jrn" enable-multiple-hits="false" expanded-results="false" secondary-query="none">
<year>2006</year> <article_title> Developmental trajectories of externalizing and internalizing behaviors: Factors underlying
resilience in physically abused children.</article_title> <journal_title>Development and Psychopathology</journal_title> <volume>18</volume> <first_page>35</first_page> <issn>0954-5794</issn> <author>Lansford</author> </query>
</body></query_batch>
http://doi.crossref.org/servlet/query?usr=***&pwd=***&type=q&format=unixsd&qdata=
http://oai.crossref.org/OAIHandler?verb=ListIdentifiers&metadataPrefix=cr_unixml&set=J:10.5132:95965
Questions?