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Generative Multi-Task Learning for Text Classification
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DOI：10.1109/ACCESS.2020.2991337.png)
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Abstract
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Multi-task learning leverages potential correlations among related tasks to extract common features and yield performance gains. In this paper, a generative multi-task learning (MTL) approach for text classification and categorization is proposed, which is composed of a shared encoder, a multi-label classification decoder and a hierarchical categorization decoder. In the two decoders, a label-order-independent multi-label classification loss function and a hierarchical structure mask matrix are introduced. Experiments conducted on the real-world public security dataset show that the proposed approach has obvious advantages over the baseline approaches and can enhance the semantic association between the results of the classification and categorization tasks.
Keywords:
Generative model
hierarchical classification
multi-label classification
multi-task learning
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29.4W
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