Generative Visual Dialogue System via Weighted Likelihood Estimation

Generative Visual Dialogue System via Weighted Likelihood Estimation

Heming Zhang, Shalini Ghosh, Larry Heck, Stephen Walsh, Junting Zhang, Jie Zhang, C.-C. Jay Kuo

Proceedings of the Twenty-Eighth International Joint Conference on Artificial Intelligence
Main track. Pages 1025-1031. https://doi.org/10.24963/ijcai.2019/144

The key challenge of generative Visual Dialogue (VD) systems is to respond to human queries with informative answers in natural and contiguous conversation flow. Traditional Maximum Likelihood Estimation-based methods only learn from positive responses but ignore the negative responses, and consequently tend to yield safe or generic responses. To address this issue, we propose a novel training scheme in conjunction with weighted likelihood estimation method. Furthermore, an adaptive multi-modal reasoning module is designed, to accommodate various dialogue scenarios automatically and select relevant information accordingly. The experimental results on the VisDial benchmark demonstrate the superiority of our proposed algorithm over other state-of-the-art approaches, with an improvement of 5.81% on recall@10.
Keywords:
Computer Vision: Language and Vision
Computer Vision: Computer Vision
Agent-based and Multi-agent Systems: Human-Agent Interaction