Which author published the paper on Subgradient method and has the name Huiping?
Which author named Huiping published the paper on Subgradient method?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/conf/isie/LiuL019> <https://dblp.org/rdf/schema#authoredBy> ?answer }
<https://dblp.org/rec/conf/isie/LiuL019>