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Keyphrase extraction for legal questions based on a sequence to sequence model
ZENG Daojian, TONG Guowei, DAI Yuan, LI Feng, HAN Bing, XIE Songxian
Journal of Tsinghua University(Science and Technology) . 2019, (4): 256 -261 .  DOI: 10.16511/j.cnki.qhdxxb.2019.21.007