Sampling Tree Fragments from Forests Tagyoung Chung author Licheng Fang author Daniel Gildea author Daniel Štefankovič author 2014-03 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal chung-etal-2014-sampling 10.1162/COLI_a_00170 https://aclanthology.org/J14-1007/ 2014-03 40 1 203 229