Comparison of topic modelling approaches in the banking context

OGUNLEYE, Bayode, MASWERA, Tonderai, HIRSCH, Laurence, GAUDOIN, Jotham and BRUNSDON, Teresa (2023). Comparison of topic modelling approaches in the banking context. Applied Sciences, 13 (2), p. 797.

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Abstract

<jats:p>Topic modelling is a prominent task for automatic topic extraction in many applications such as sentiment analysis and recommendation systems. The approach is vital for service industries to monitor their customer discussions. The use of traditional approaches such as Latent Dirichlet Allocation (LDA) for topic discovery has shown great performances, however, they are not consistent in their results as these approaches suffer from data sparseness and inability to model the word order in a document. Thus, this study presents the use of Kernel Principal Component Analysis (KernelPCA) and K-means Clustering in the BERTopic architecture. We have prepared a new dataset using tweets from customers of Nigerian banks and we use this to compare the topic modelling approaches. Our findings showed KernelPCA and K-means in the BERTopic architecture-produced coherent topics with a coherence score of 0.8463.</jats:p>

Item Type:	Article
Identification Number:	https://doi.org/10.3390/app13020797
Page Range:	p. 797
SWORD Depositor:	Symplectic Elements
Depositing User:	Symplectic Elements
Date Deposited:	03 Feb 2023 11:34
Last Modified:	03 Feb 2023 11:34
URI:	https://shura.shu.ac.uk/id/eprint/31369

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