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2020 | OriginalPaper | Chapter

“Love Is as Complex as Math”: Metaphor Generation System for Social Chatbot

Authors : Danning Zheng, Ruihua Song, Tianran Hu, Hao Fu, Jin Zhou

Published in: Chinese Lexical Semantics

Publisher: Springer International Publishing

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Abstract

As the wide adoption of intelligent chatbot in human daily life, user demands for such systems evolve from basic task-solving conversations to more casual and friend-like communication. To meet the user needs and build emotional bond with users, it is essential for social chatbots to incorporate more human-like and advanced linguistic features. In this paper, the usage of a commonly used rhetorical device – metaphor – is investigated for social chatbot. Our work first designs a metaphor generation framework, which generates topic-aware and novel figurative sentences. Human annotators validate the novelty and properness of the generated metaphors. More importantly, we evaluate the effects of employing metaphors in human-chatbot conversations. Experiments indicate that our system effectively arouses user interests in communicating with our chatbot, resulting in significantly longer human-chatbot conversations.

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Footnotes
2
The closest concepts are extracted from a pre-trained word embedding space learned from millions of social media (Weibo) posts.
 
3
Details of this classifier are beyond the scope of this paper and were omitted.
 
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Metadata
Title
“Love Is as Complex as Math”: Metaphor Generation System for Social Chatbot
Authors
Danning Zheng
Ruihua Song
Tianran Hu
Hao Fu
Jin Zhou
Copyright Year
2020
DOI
https://doi.org/10.1007/978-3-030-38189-9_36

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