What year was 'Improving Relation Extraction Using Semantic Role and Multi-task Learning' published?
When was 'Improving Relation Extraction Using Semantic Role and Multi-task Learning' published?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/conf/ccks/ZhuSH20> <https://dblp.org/rdf/schema#yearOfPublication> ?answer }
<https://dblp.org/rec/conf/ccks/ZhuSH20>