What Should I Ask? Using Conversationally Informative Rewards for Goal-oriented Visual Dialog.

Pushkar Shukla, Carlos Elmadjian, Richika Sharan, Vivek Kulkarni, Matthew Turk, William Yang Wang


Abstract
The ability to engage in goal-oriented conversations has allowed humans to gain knowledge, reduce uncertainty, and perform tasks more efficiently. Artificial agents, however, are still far behind humans in having goal-driven conversations. In this work, we focus on the task of goal-oriented visual dialogue, aiming to automatically generate a series of questions about an image with a single objective. This task is challenging since these questions must not only be consistent with a strategy to achieve a goal, but also consider the contextual information in the image. We propose an end-to-end goal-oriented visual dialogue system, that combines reinforcement learning with regularized information gain. Unlike previous approaches that have been proposed for the task, our work is motivated by the Rational Speech Act framework, which models the process of human inquiry to reach a goal. We test the two versions of our model on the GuessWhat?! dataset, obtaining significant results that outperform the current state-of-the-art models in the task of generating questions to find an undisclosed object in an image.
Anthology ID:
P19-1646
Volume:
Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics
Month:
July
Year:
2019
Address:
Florence, Italy
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
6442–6451
Language:
URL:
https://aclanthology.org/P19-1646
DOI:
10.18653/v1/P19-1646
Bibkey:
Cite (ACL):
Pushkar Shukla, Carlos Elmadjian, Richika Sharan, Vivek Kulkarni, Matthew Turk, and William Yang Wang. 2019. What Should I Ask? Using Conversationally Informative Rewards for Goal-oriented Visual Dialog.. In Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics, pages 6442–6451, Florence, Italy. Association for Computational Linguistics.
Cite (Informal):
What Should I Ask? Using Conversationally Informative Rewards for Goal-oriented Visual Dialog. (Shukla et al., ACL 2019)
Copy Citation:
PDF:
https://aclanthology.org/P19-1646.pdf
Data
GuessWhat?!