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Open LLMs Compared to TF-IDF and CodeBERT for Bug Severity Classification

A new study published on arXiv compares the effectiveness of fine-tuned open large language models (LLMs) against traditional methods like TF-IDF and CodeBERT for classifying bug severity in Eclipse reports. The research found that while fine-tuned LLMs like Llama 3 8B and Qwen 2.5 7B achieved higher macro-F1 scores than zero-shot LLMs and CodeBERT, their performance was comparable to or slightly below TF-IDF models in some configurations. The study also highlighted significant differences in how these models handle specific bug severity classes, with fine-tuned Llama 3 excelling at identifying critical issues but struggling with minor ones, while Qwen 2.5 showed the opposite pattern. AI

IMPACT Fine-tuned open LLMs show potential for specialized tasks like bug severity classification, though they may not consistently outperform traditional methods without further optimization.

RANK_REASON Academic paper comparing LLM performance on a specific task. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.LG →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Open LLMs Compared to TF-IDF and CodeBERT for Bug Severity Classification

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Academic paper comparing LLM performance on a specific task. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.LG TIER_1 English(EN) · Asset Kanatov, Talgar Bayan, Askar Boranbayev ·

    Bug Severity Classification with Fine-Tuned Open LLMs: A Paired Comparison with TF-IDF and CodeBERT Baselines on Eclipse Reports

    arXiv:2610.34127v1 Announce Type: cross Abstract: Open large language models (LLMs) small enough to run on a laptop are an obvious candidate for automatic bug severity prediction. We measure what they add over cheaper classifiers on one task: assigning one of four Bugzilla severi…