Automatic Wrapper Generation and Maintenance Yingju Xia author Yuhang Yang author Shu Zhang author Hao Yu author 2011-12 text Proceedings of the 25th Pacific Asia Conference on Language, Information and Computation Helena Hong Gao editor Minghui Dong editor Institute of Digital Enhancement of Cognitive Processing, Waseda University Singapore conference publication xia-etal-2011-automatic https://aclanthology.org/Y11-1010/ 2011-12 90 99