Papers › EVA: An Open-Domain Chinese Dialogue System with Large-Scale Generative Pre-Training

EVA: An Open-Domain Chinese Dialogue System with Large-Scale Generative Pre-Training

3 Aug 2021arXiv:2108.01547archive 2025-07-28

Hao Zhou, Pei Ke, Zheng Zhang, Yuxian Gu, Yinhe Zheng, Chujie Zheng, Yida Wang, Chen Henry Wu, Hao Sun, Xiaocong Yang, Bosi Wen, Xiaoyan Zhu, Minlie Huang, Jie Tang

Although pre-trained language models have remarkably enhanced the generation ability of dialogue systems, open-domain Chinese dialogue systems are still limited by the dialogue data and the model size compared with English ones. In this paper, we propose EVA, a Chinese dialogue system that contains the largest Chinese pre-trained dialogue model with 2.8B parameters. To build this model, we collect the largest Chinese dialogue dataset named WDC-Dialogue from various public social media. This dataset contains 1.4B context-response pairs and is used as the pre-training corpus of EVA. Extensive experiments on automatic and human evaluation show that EVA outperforms other Chinese pre-trained dialogue models especially in the multi-turn interaction of human-bot conversations.

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thu-coai/EVA officialmentioned in papermentioned on GitHubpytorchMIT report
openbmb/bminf mentioned on GitHubpytorchApache-2.0 report

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