A Scope Sensitive and Result Attentive Model for Multi-Intent Spoken Language Understanding

• URL: http://arxiv.org/abs/2211.12220v1
• Date: Tue, 22 Nov 2022 12:24:22 GMT
• Title: A Scope Sensitive and Result Attentive Model for Multi-Intent Spoken Language Understanding
• Authors: Lizhi Cheng, Wenmian Yang, Weijia Jia
• Abstract summary: Multi-Intent Spoken Language Understanding (SLU) is attracting increasing attention. Unlike traditional SLU, each intent in this scenario has its specific scope. Semantic information outside the scope even hinders the prediction. We propose a novel Scope-Sensitive Result Attention Network (SSRAN) based on Transformer, which contains a Scope Recognizer (SR) and a Result Attention Network (RAN)
• Score: 18.988599232838766
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Multi-Intent Spoken Language Understanding (SLU), a novel and more complex scenario of SLU, is attracting increasing attention. Unlike traditional SLU, each intent in this scenario has its specific scope. Semantic information outside the scope even hinders the prediction, which tremendously increases the difficulty of intent detection. More seriously, guiding slot filling with these inaccurate intent labels suffers error propagation problems, resulting in unsatisfied overall performance. To solve these challenges, in this paper, we propose a novel Scope-Sensitive Result Attention Network (SSRAN) based on Transformer, which contains a Scope Recognizer (SR) and a Result Attention Network (RAN). Scope Recognizer assignments scope information to each token, reducing the distraction of out-of-scope tokens. Result Attention Network effectively utilizes the bidirectional interaction between results of slot filling and intent detection, mitigating the error propagation problem. Experiments on two public datasets indicate that our model significantly improves SLU performance (5.4\% and 2.1\% on Overall accuracy) over the state-of-the-art baseline.

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