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Related Experiment Video

Updated: Sep 22, 2025

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness
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A Topic Modeling Comparison Between LDA, NMF, Top2Vec, and BERTopic to Demystify Twitter Posts.

Roman Egger1, Joanne Yu2

  • 1Innovation and Management in Tourism, Salzburg University of Applied Sciences, Salzburg, Austria.

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|May 23, 2022
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Summary

This study evaluates four topic modeling techniques for analyzing social media data. BERTopic and Non-negative Matrix Factorization (NMF) show promise for understanding Twitter content in social science research.

Keywords:
BERTopicLDANMFTop2VecTwittercovid travelmachine learningtopic model

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Area of Science:

  • Computational Social Science
  • Digital Humanities
  • Data Science

Background:

  • Social media data offers rich insights into human behavior.
  • Topic models provide novel perspectives on social phenomena.
  • Analyzing short, unstructured social media text presents methodological challenges.

Purpose of the Study:

  • To evaluate the performance of four topic modeling techniques: Latent Dirichlet Allocation (LDA), Non-negative Matrix Factorization (NMF), Top2Vec, and BERTopic.
  • To assess the strengths and weaknesses of these algorithms in a social science context using Twitter data.
  • To identify effective computational methods for analyzing social media content.

Main Methods:

  • Comparative analysis of four topic modeling algorithms: LDA, NMF, Top2Vec, and BERTopic.
  • Application of algorithms to Twitter data, a representative social media platform.
  • Evaluation based on analytical procedures and data quality considerations.

Main Results:

  • The study highlights the strengths and weaknesses of each topic modeling technique for social media analysis.
  • Specific analytical procedures and quality issues influenced algorithm performance.
  • BERTopic and NMF demonstrated particular efficacy in analyzing Twitter data.

Conclusions:

  • BERTopic and NMF are effective methods for analyzing social media data, specifically Twitter posts.
  • The findings bridge computational science and empirical social research by validating data-driven approaches.
  • This research informs the selection of appropriate topic modeling tools for social science research on digital media.