A Cognitive Stimulation Dialogue System with Multi-source Knowledge Fusion for Elders with Cognitive Impairment

• URL: http://arxiv.org/abs/2305.08200v1
• Date: Sun, 14 May 2023 16:52:20 GMT
• Title: A Cognitive Stimulation Dialogue System with Multi-source Knowledge Fusion for Elders with Cognitive Impairment
• Authors: Jiyue Jiang, Sheng Wang, Qintong Li, Lingpeng Kong, Chuan Wu
• Abstract summary: Data sparsity is the main challenge in building CS-based dialogue systems, particularly in the Chinese language. Making chit chat while providing emotional support is overlooked by the majority of existing cognitive dialogue systems. We propose a multi-source knowledge fusion method for CS dialogue (CSD), to generate open-ended responses guided by the CS principle and emotional support strategy.
• Score: 15.921295369286161
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: When communicating with elders with cognitive impairment, cognitive stimulation (CS) help to maintain the cognitive health of elders. Data sparsity is the main challenge in building CS-based dialogue systems, particularly in the Chinese language. To fill this gap, we construct a Chinese CS conversation (CSConv) dataset, which contains about 2.6K groups of dialogues with CS principles and emotional support strategy labels. Making chit chat while providing emotional support is overlooked by the majority of existing cognitive dialogue systems. In this paper, we propose a multi-source knowledge fusion method for CS dialogue (CSD), to generate open-ended responses guided by the CS principle and emotional support strategy. We first use a progressive mask method based on external knowledge to learn encoders as effective classifiers, which is the prerequisite to predict the CS principle and emotional support strategy of the target response. Then a decoder interacts with the perceived CS principle and emotional support strategy to generate responses. Extensive experiments conducted on the CSConv dataset demonstrate the effectiveness of the proposed method, while there is still a large space for improvement compared to human performance.

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