publications_by_year.sparql

# publications_by_year.sparql
# 
# Get the number of articles published in a particular year
#
PREFIX rdf:      <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX bibo:     <http://purl.org/ontology/bibo/>
PREFIX vivo:     <http://vivoweb.org/ontology/core#>
     
SELECT (count(?pub) as ?cnt)
WHERE {
    ?pub rdf:type bibo:Article .
    ?pub vivo:dateTimeValue ?dtv .
    ?dtv rdf:type vivo:DateTimeValue .
    ?dtv vivo:dateTime ?dt .
    FILTER (str(?dt) >= '2015-01-01T:00:00:00')
    FILTER (str(?dt) <= '2015-12-31T:00:00:00')
}