System Utterance Generation by Label Propagation over Association Graph of Words and Utterance Patterns for Open-Domain Dialogue Systems Hiroshi Tsukahara author Kei Uchiumi author 2015-10 text Proceedings of the 29th Pacific Asia Conference on Language, Information and Computation Hai Zhao editor Shanghai, China conference publication tsukahara-uchiumi-2015-system https://aclanthology.org/Y15-1037/ 2015-10 323 331