A Hybrid Framework for Topic Structure using Laughter Occurrences

• URL: http://arxiv.org/abs/2001.00573v1
• Date: Tue, 31 Dec 2019 23:31:42 GMT
• Title: A Hybrid Framework for Topic Structure using Laughter Occurrences
• Authors: Sucheta Ghosh
• Abstract summary: In this work we combine both paralinguistic and linguistic knowledge into a hybrid framework through a multi-level hierarchy. The laughter occurrences are used as paralinguistic information from the multiparty meeting transcripts of ICSI database. This training-free topic structuring approach can be applicable to online understanding of spoken dialogs.
• Score: 0.3680403821470856
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Conversational discourse coherence depends on both linguistic and paralinguistic phenomena. In this work we combine both paralinguistic and linguistic knowledge into a hybrid framework through a multi-level hierarchy. Thus it outputs the discourse-level topic structures. The laughter occurrences are used as paralinguistic information from the multiparty meeting transcripts of ICSI database. A clustering-based algorithm is proposed that chose the best topic-segment cluster from two independent, optimized clusters, namely, hierarchical agglomerative clustering and $K$-medoids. Then it is iteratively hybridized with an existing lexical cohesion based Bayesian topic segmentation framework. The hybrid approach improves the performance of both of the stand-alone approaches. This leads to the brief study of interactions between topic structures with discourse relational structure. This training-free topic structuring approach can be applicable to online understanding of spoken dialogs.

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