Dynamic Explanation Emphasis in Human-XAI Interaction with Communication Robot

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Hauptverfasser: Fukuchi, Yosuke, Yamada, Seiji
Format: Preprint
Veröffentlicht: 2024
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author Fukuchi, Yosuke
Yamada, Seiji
author_facet Fukuchi, Yosuke
Yamada, Seiji
contents Communication robots have the potential to contribute to effective human-XAI interaction as an interface that goes beyond textual or graphical explanations. One of their strengths is that they can use physical and vocal expressions to add detailed nuances to explanations. However, it is not clear how a robot can apply such expressions, or in particular, how we can develop a strategy to adaptively use such expressions depending on the task and user in dynamic interactions. To address this question, this paper proposes DynEmph, a method for a communication robot to decide where to emphasize XAI-generated explanations with physical expressions. It predicts the effect of emphasizing certain points on a user and aims to minimize the expected difference between predicted user decisions and AI-suggested ones. DynEmph features a strategy for deciding where to emphasize in a data-driven manner, relieving engineers from the need to manually design a strategy. We further conducted experiments to investigate how emphasis selection strategies affect the performance of user decisions. The results suggest that, while a naive strategy (emphasizing explanations for an AI's most probable class) does not necessarily work better, DynEmph effectively guides users to better decisions under the condition that the performance of the AI suggestion is high.
format Preprint
id arxiv_https___arxiv_org_abs_2403_14550
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Dynamic Explanation Emphasis in Human-XAI Interaction with Communication Robot
Fukuchi, Yosuke
Yamada, Seiji
Human-Computer Interaction
Artificial Intelligence
Communication robots have the potential to contribute to effective human-XAI interaction as an interface that goes beyond textual or graphical explanations. One of their strengths is that they can use physical and vocal expressions to add detailed nuances to explanations. However, it is not clear how a robot can apply such expressions, or in particular, how we can develop a strategy to adaptively use such expressions depending on the task and user in dynamic interactions. To address this question, this paper proposes DynEmph, a method for a communication robot to decide where to emphasize XAI-generated explanations with physical expressions. It predicts the effect of emphasizing certain points on a user and aims to minimize the expected difference between predicted user decisions and AI-suggested ones. DynEmph features a strategy for deciding where to emphasize in a data-driven manner, relieving engineers from the need to manually design a strategy. We further conducted experiments to investigate how emphasis selection strategies affect the performance of user decisions. The results suggest that, while a naive strategy (emphasizing explanations for an AI's most probable class) does not necessarily work better, DynEmph effectively guides users to better decisions under the condition that the performance of the AI suggestion is high.
title Dynamic Explanation Emphasis in Human-XAI Interaction with Communication Robot
topic Human-Computer Interaction
Artificial Intelligence
url https://arxiv.org/abs/2403.14550