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arXiv · 2508.10008

Multidimensional classification of posts for online course discussion forum curation

Antonio Leandro Martins Candido·Jose Everardo Bessa Maia
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Abstract

The automatic curation of discussion forums in online courses requires constant updates, making frequent retraining of Large Language Models (LLMs) a resource-intensive process. To circumvent the need for costly fine-tuning, this paper proposes and evaluates the use of Bayesian fusion. The approach combines the multidimensional classification scores of a pre-trained generic LLM with those of a classifier trained on local data. The performance comparison demonstrated that the proposed fusion improves the results compared to each classifier individually, and is competitive with the LLM fine-tuning approach

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Antonio Leandro Martins Candido, Jose Everardo Bessa Maia. 2025-08-05. Multidimensional classification of posts for online course discussion forum curation. https://arxiv.org/abs/2508.10008

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