Title
Beyond task success: A closer look at jointly learning to see, ask, and GuessWhat
Abstract
We propose a grounded dialogue state encoder which addresses a foundational issue on how to integrate visual grounding with dialogue system components. As a test-bed, we focus on the GuessWhat?! game, a two-player game where the goal is to identify an object in a complex visual scene by asking a sequence of yes/no questions. Our visually-grounded encoder leverages synergies between guessing and asking questions, as it is trained jointly using multi-task learning. We further enrich our model via a cooperative learning regime. We show that the introduction of both the joint architecture and cooperative learning lead to accuracy improvements over the baseline system. We compare our approach to an alternative system which extends the baseline with reinforcement learning. Our in-depth analysis shows that the linguistic skills of the two models differ dramatically, despite approaching comparable performance levels. This points at the importance of analyzing the linguistic output of competing systems beyond numeric comparison solely based on task success.
Year
Venue
Field
2019
north american chapter of the association for computational linguistics
Ask price,Cognitive science,Computer science,Artificial intelligence,Natural language processing
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Ravi Shekhar1343.82
Aashish Venkatesh201.01
Tim Baumgärtner302.03
elia bruni431120.46
B. Plank548145.29
Raffaella Bernardi638038.05
Raquel Fernández714727.76