WangchanThaiInstruct: An instruction-following Dataset for Culture-Aware, Multitask, and Multi-domain Evaluation in Thai

Fuente: arXiv
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Main Authors: Limkonchotiwat, Peerat, Tuchinda, Pume, Lowphansirikul, Lalita, Nonesung, Surapon, Tasawong, Panuthep, Aji, Alham Fikri, Udomcharoenchaikit, Can, Nutanong, Sarana
Format: Preprint
Published: 2025
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author Limkonchotiwat, Peerat
Tuchinda, Pume
Lowphansirikul, Lalita
Nonesung, Surapon
Tasawong, Panuthep
Aji, Alham Fikri
Udomcharoenchaikit, Can
Nutanong, Sarana
author_facet Limkonchotiwat, Peerat
Tuchinda, Pume
Lowphansirikul, Lalita
Nonesung, Surapon
Tasawong, Panuthep
Aji, Alham Fikri
Udomcharoenchaikit, Can
Nutanong, Sarana
contents Large language models excel at instruction-following in English, but their performance in low-resource languages like Thai remains underexplored. Existing benchmarks often rely on translations, missing cultural and domain-specific nuances needed for real-world use. We present WangchanThaiInstruct, a human-authored Thai dataset for evaluation and instruction tuning, covering four professional domains and seven task types. Created through a multi-stage quality control process with annotators, domain experts, and AI researchers, WangchanThaiInstruct supports two studies: (1) a zero-shot evaluation showing performance gaps on culturally and professionally specific tasks, and (2) an instruction tuning study with ablations isolating the effect of native supervision. Models fine-tuned on WangchanThaiInstruct outperform those using translated data in both in-domain and out-of-domain benchmarks. These findings underscore the need for culturally and professionally grounded instruction data to improve LLM alignment in low-resource, linguistically diverse settings.
format Preprint
id arxiv_https___arxiv_org_abs_2508_15239
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle WangchanThaiInstruct: An instruction-following Dataset for Culture-Aware, Multitask, and Multi-domain Evaluation in Thai
Limkonchotiwat, Peerat
Tuchinda, Pume
Lowphansirikul, Lalita
Nonesung, Surapon
Tasawong, Panuthep
Aji, Alham Fikri
Udomcharoenchaikit, Can
Nutanong, Sarana
Computation and Language
Large language models excel at instruction-following in English, but their performance in low-resource languages like Thai remains underexplored. Existing benchmarks often rely on translations, missing cultural and domain-specific nuances needed for real-world use. We present WangchanThaiInstruct, a human-authored Thai dataset for evaluation and instruction tuning, covering four professional domains and seven task types. Created through a multi-stage quality control process with annotators, domain experts, and AI researchers, WangchanThaiInstruct supports two studies: (1) a zero-shot evaluation showing performance gaps on culturally and professionally specific tasks, and (2) an instruction tuning study with ablations isolating the effect of native supervision. Models fine-tuned on WangchanThaiInstruct outperform those using translated data in both in-domain and out-of-domain benchmarks. These findings underscore the need for culturally and professionally grounded instruction data to improve LLM alignment in low-resource, linguistically diverse settings.
title WangchanThaiInstruct: An instruction-following Dataset for Culture-Aware, Multitask, and Multi-domain Evaluation in Thai
topic Computation and Language
url https://arxiv.org/abs/2508.15239