# Localized large language model TCNNet 9B for Taiwanese networking and cybersecurity

**Authors:** Jiun-Yi Yang, Chia-Chun Wu

PMC · DOI: 10.1038/s41598-025-90320-9 · Scientific Reports · 2025-03-20

## TL;DR

This paper introduces TCNNet-9B, a large language model tailored for the Taiwanese networking and cybersecurity industry, showing improved performance in specialized tasks.

## Contribution

The novel contribution is the development of TCNNet-9B, a localized Traditional Chinese language model optimized for networking and cybersecurity domains in Taiwan.

## Key findings

- TCNNet-9B achieved a 2.35-fold improvement in Q&A task accuracy compared to the baseline.
- The model showed a 37.6% increase in domain expertise comprehension and 29.5% improvement in product recommendation relevance.
- TCNNet-9B was successfully integrated into Hi5’s intelligent sales advisor system.

## Abstract

This paper introduces TCNNet-9B, a specialized Traditional Chinese language model developed to address the specific requirements of the Taiwanese networking industry. Built upon the open-source Yi-1.5-9B architecture, TCNNet-9B underwent extensive pretraining and instruction finetuning utilizing a meticulously curated dataset derived from multi-source web crawling. The training data encompasses comprehensive networking knowledge, DIY assembly guides, equipment recommendations, and localized cybersecurity regulations. Our rigorous evaluation through custom-designed benchmarks assessed the model’s performance across English, Traditional Chinese, and Simplified Chinese contexts. The comparative analysis demonstrated TCNNet-9B’s superior performance over the baseline model, achieving a 2.35-fold improvement in Q&A task accuracy, a 37.6% increase in domain expertise comprehension, and a 29.5% enhancement in product recommendation relevance. The practical efficacy of TCNNet-9B was further validated through its successful integration into Hi5’s intelligent sales advisor system. This research highlights the significance of domain-specific adaptation and localization in enhancing large language models, providing a valuable practical reference for future developments in non-English contexts and vertical specialized fields.

## Full-text entities

- **Diseases:** LLMs (MESH:D007806), CLUE (MESH:C562377)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

4 figures with captions in the complete paper: https://tomesphere.com/paper/PMC11926162/full.md

## References

14 references — full list in the complete paper: https://tomesphere.com/paper/PMC11926162/full.md

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Source: https://tomesphere.com/paper/PMC11926162