Exploiting Network Structures to Improve Semantic Representation for the Financial Domain

• URL: http://arxiv.org/abs/2107.05885v1
• Date: Tue, 13 Jul 2021 07:32:18 GMT
• Title: Exploiting Network Structures to Improve Semantic Representation for the Financial Domain
• Authors: Chao Feng, Shi-jie We
• Abstract summary: This paper presents the MiniTrue team in the FinSim-3 shared task on learning semantic similarities for the financial domain in English language. Our approach combines contextual embeddings learned by transformer-based language models with network structures embeddings extracted on external knowledge sources. Experimental results show that the model with the knowledge graph embeddings has achieved a superior result than these models with only contextual embeddings.
• Score: 9.13755431537592
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: This paper presents the participation of the MiniTrue team in the FinSim-3 shared task on learning semantic similarities for the financial domain in English language. Our approach combines contextual embeddings learned by transformer-based language models with network structures embeddings extracted on external knowledge sources, to create more meaningful representations of financial domain entities and terms. For this, two BERT based language models and a knowledge graph embedding model are used. Besides, we propose a voting function to joint three basic models for the final inference. Experimental results show that the model with the knowledge graph embeddings has achieved a superior result than these models with only contextual embeddings. Nevertheless, we also observe that our voting function brings an extra benefit to the final system.

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