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Improving active listening behaviours of embodied conversational agents (ECA) from a UX perspective
KTH, School of Electrical Engineering and Computer Science (EECS).
2022 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Active listening is a communication technique where the listener listens to the speaker carefully and attentively by confirming or asking for more details about what they heard during a conversation. Active listening has proven to be a very useful technique in learning and extracting insightful information from the conversation and poses many challenges when emulating such behaviours in a virtual character. In this research, various active listening behaviours are explored according to context, so that these behaviours can be adopted by Embodied Conversational Agents (ECA’s) to be perceived as more believable humanistic characters. This publication describes those behaviours in-depth by gathering insights via expert Interviews. An experiment was carried out with 20 participants (12 men and 8 women) to identify the implemented behaviours and their overall effect during a generic conversation with the ECA. The results showed that the participants were able to identify most of the implemented active-listening behaviours like Interested/inquisitive, agreement/approval (head nod and corresponding sounds), and provided insights for further improvement of the interlocution. 

Abstract [sv]

Aktivt lyssnande är en kommunikationsteknik där lyssnaren lyssnar på talaren noggrant och uppmärksamt genom att bekräfta eller be om mer information om vad de hörde under ett samtal. Aktivt lyssnande har visat sig vara en mycket användbar teknik för att lära sig och extrahera insiktsfull information från konversationen och ställer till många utmaningar när man emulerar sådana beteenden i en virtuell karaktär. I denna forskning utforskas olika aktiva lyssnandebeteenden i enlighet med sammanhang, så att dessa beteenden kan antas av Embodied Conversational Agents (ECA) för att uppfattas som mer trovärdiga humanistiska karaktärer. Den här publikationen beskriver dessa beteenden på djupet genom att samla in insikter via expertintervjuer. Ett experiment genomfördes med 20 deltagare (12 män och 8 kvinnor) för att identifiera de implementerade beteendena och deras totala effekt under ett allmänt samtal med ECA. Resultaten visade att deltagarna kunde identifiera de flesta av de implementerade aktivt lyssnande beteendena som Intresserad/nyfiken, överenskommelse/godkännande (huvudnicka och motsvarande ljud), och gav insikter för ytterligare förbättring av samtalet.

Place, publisher, year, edition, pages
2022. , p. 16
Series
TRITA-EECS-EX ; 2022:51
Keywords [en]
Embodied Conversational Avatar, Virtual Humans, User Experience, Active Listening Behaviour, Characteristics, Expressions.
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:kth:diva-310119OAI: oai:DiVA.org:kth-310119DiVA, id: diva2:1646058
External cooperation
Fictive Reality AB
Supervisors
Examiners
Available from: 2022-03-25 Created: 2022-03-21 Last updated: 2022-06-25Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
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Language
  • de-DE
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  • Other locale
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Output format
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