Bridging Language Gaps with Adaptive RAG: Improving Indonesian Language Question Answering

Fuente: arXiv
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Auteurs principaux: Christian, William, Adamlu, Daniel, Yu, Adrian, Suhartono, Derwin
Format: Preprint
Publié: 2025
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author Christian, William
Adamlu, Daniel
Yu, Adrian
Suhartono, Derwin
author_facet Christian, William
Adamlu, Daniel
Yu, Adrian
Suhartono, Derwin
contents Question Answering (QA) has seen significant improvements with the advancement of machine learning models, further studies enhanced this question answering system by retrieving external information, called Retrieval-Augmented Generation (RAG) to produce more accurate and informative answers. However, these state-of-the-art-performance is predominantly in English language. To address this gap we made an effort of bridging language gaps by incorporating Adaptive RAG system to Indonesian language. Adaptive RAG system integrates a classifier whose task is to distinguish the question complexity, which in turn determines the strategy for answering the question. To overcome the limited availability of Indonesian language dataset, our study employs machine translation as data augmentation approach. Experiments show reliable question complexity classifier; however, we observed significant inconsistencies in multi-retrieval answering strategy which negatively impacted the overall evaluation when this strategy was applied. These findings highlight both the promise and challenges of question answering in low-resource language suggesting directions for future improvement.
format Preprint
id arxiv_https___arxiv_org_abs_2510_21068
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Bridging Language Gaps with Adaptive RAG: Improving Indonesian Language Question Answering
Christian, William
Adamlu, Daniel
Yu, Adrian
Suhartono, Derwin
Computation and Language
Artificial Intelligence
Question Answering (QA) has seen significant improvements with the advancement of machine learning models, further studies enhanced this question answering system by retrieving external information, called Retrieval-Augmented Generation (RAG) to produce more accurate and informative answers. However, these state-of-the-art-performance is predominantly in English language. To address this gap we made an effort of bridging language gaps by incorporating Adaptive RAG system to Indonesian language. Adaptive RAG system integrates a classifier whose task is to distinguish the question complexity, which in turn determines the strategy for answering the question. To overcome the limited availability of Indonesian language dataset, our study employs machine translation as data augmentation approach. Experiments show reliable question complexity classifier; however, we observed significant inconsistencies in multi-retrieval answering strategy which negatively impacted the overall evaluation when this strategy was applied. These findings highlight both the promise and challenges of question answering in low-resource language suggesting directions for future improvement.
title Bridging Language Gaps with Adaptive RAG: Improving Indonesian Language Question Answering
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2510.21068