Search the CrossRef Metatdata for DOIs using free form references.

Usage

crossref_search_free(query, url = "http://search.labs.crossref.org/links")

Arguments

query
Reference query; a character vector of length 1 or greater, comma-separated of course.
url
Base url for the Crossref metadata API.

Description

Search the CrossRef Metatdata for DOIs using free form references.

Details

Have to have at least three terms in each search query.

Examples

# search with title, author, year, and journal crossref_search_free(query = "Piwowar Sharing Detailed Research Data Is Associated with Increased Citation Rate PLOS one 2007")
text match doi 1 Piwowar Sharing Detailed Research Data Is Associated with Increased Citation Rate PLOS one 2007 TRUE 10.1038/npre.2007.361 score 1 4.908581
crossref_search_free(query="Renear 2012") # too few words, need at least 3
text reason match 1 Renear 2012 Too few terms FALSE
crossref_search_free(query=c("Renear 2012","Piwowar sharing data PLOS one")) # multiple queries
text reason match doi score 1 Renear 2012 Too few terms FALSE NA 2 Piwowar sharing data PLOS one TRUE 10.1371/journal.pone.0000308 3.424497
# Get a DOI and get the citation using \code{crossref_search} doi <- crossref_search_free(query="Piwowar sharing data PLOS one")$doi crossref_search(doi = doi)
doi score normalizedScore title 1 10.1371/journal.pone.0000308 18.08944 100 Sharing Detailed Research Data Is Associated with Increased Citation Rate fullCitation 1 Heather A. Piwowar, Roger S. Day, Douglas B. Fridsma, John Ioannidis, 2007, 'Sharing Detailed Research Data Is Associated with Increased Citation Rate', PLoS ONE, vol. 2, no. 3, p. e308 coins 1 ctx_ver=Z39.88-2004&rft_id=info%3Adoi%2F10.1371%2Fjournal.pone.0000308&rfr_id=info%3Asid%2Fcrossref.org%3Asearch&rft.atitle=Sharing+Detailed+Research+Data+Is+Associated+with+Increased+Citation+Rate&rft.jtitle=PLoS+ONE&rft.date=2007&rft.volume=2&rft.issue=3&rft.spage=e308&rft.aufirst=Heather+A.&rft.aulast=Piwowar&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.au=Heather+A.+Piwowar&rft.au=+Roger+S.+Day&rft.au=+Douglas+B.+Fridsma&rft.au=+John+Ioannidis year 1 2007
# Queries can be quite complex too crossref_search_free("M. Henrion, D. J. Mortlock, D. J. Hand, and A. Gandy, \"A Bayesian approach to star-galaxy classification,\" Monthly Notices of the Royal Astronomical Society, vol. 412, no. 4, pp. 2286-2302, Apr. 2011.")
text 1 M. Henrion, D. J. Mortlock, D. J. Hand, and A. Gandy, "A Bayesian approach to star-galaxy classification," Monthly Notices of the Royal Astronomical Society, vol. 412, no. 4, pp. 2286-2302, Apr. 2011. match doi score 1 TRUE 10.1111/j.1365-2966.2010.18055.x 4.508922
# Lots of queries queries <- c("Piwowar sharing data PLOS one", "Priem Scientometrics 2.0 social web", "William Gunn A Crosstalk Between Myeloma Cells", "karthik ram Metapopulation dynamics override local limits") crossref_search_free(queries)
text match doi score 1 Piwowar sharing data PLOS one TRUE 10.1371/journal.pone.0000308 3.424497 2 Priem Scientometrics 2.0 social web TRUE 10.1007/s11192-012-0738-1 2.046859 3 William Gunn A Crosstalk Between Myeloma Cells TRUE 10.1634/stemcells.2005-0220 2.812324 4 karthik ram Metapopulation dynamics override local limits TRUE 10.1890/08-0228.1 4.812638