ConflLlama: Domain-specific adaptation of large language models for conflict event classification

We present ConflLlama, demonstrating how efficient fine-tuning of large language models can advance automated classification tasks in political science research. While classification of political events has traditionally relied on manual coding or rigid rule-based systems, modern language models off...

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Main Authors: Shreyas Meher, Patrick T. Brandt
Format: Article
Language:English
Published: SAGE Publishing 2025-07-01
Series:Research & Politics
Online Access:https://doi.org/10.1177/20531680251356282
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author Shreyas Meher
Patrick T. Brandt
author_facet Shreyas Meher
Patrick T. Brandt
author_sort Shreyas Meher
collection DOAJ
description We present ConflLlama, demonstrating how efficient fine-tuning of large language models can advance automated classification tasks in political science research. While classification of political events has traditionally relied on manual coding or rigid rule-based systems, modern language models offer the potential for more nuanced, context-aware analysis. However, deploying these models requires overcoming significant technical and resource barriers. We demonstrate how to adapt open-source language models to specialized political science tasks, using conflict event classification as our proof of concept. Through quantization and efficient fine-tuning techniques, we show state-of-the-art performance while minimizing computational requirements. Our approach achieves a macro-averaged AUC of 0.791 and a weighted F1-score of 0.753, representing a 37.6% improvement over the base model, with accuracy gains of up to 1463% in challenging classifications. We offer a roadmap for political scientists to adapt these methods to their own research domains, democratizing access to advanced NLP capabilities across the discipline. This work bridges the gap between cutting-edge AI developments and practical political science research needs, enabling broader adoption of these powerful analytical tools.
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spelling doaj-art-d68233cf2b0c41f4a2b6d15c7ad43eec2025-07-08T15:03:40ZengSAGE PublishingResearch & Politics2053-16802025-07-011210.1177/20531680251356282ConflLlama: Domain-specific adaptation of large language models for conflict event classificationShreyas MeherPatrick T. BrandtWe present ConflLlama, demonstrating how efficient fine-tuning of large language models can advance automated classification tasks in political science research. While classification of political events has traditionally relied on manual coding or rigid rule-based systems, modern language models offer the potential for more nuanced, context-aware analysis. However, deploying these models requires overcoming significant technical and resource barriers. We demonstrate how to adapt open-source language models to specialized political science tasks, using conflict event classification as our proof of concept. Through quantization and efficient fine-tuning techniques, we show state-of-the-art performance while minimizing computational requirements. Our approach achieves a macro-averaged AUC of 0.791 and a weighted F1-score of 0.753, representing a 37.6% improvement over the base model, with accuracy gains of up to 1463% in challenging classifications. We offer a roadmap for political scientists to adapt these methods to their own research domains, democratizing access to advanced NLP capabilities across the discipline. This work bridges the gap between cutting-edge AI developments and practical political science research needs, enabling broader adoption of these powerful analytical tools.https://doi.org/10.1177/20531680251356282
spellingShingle Shreyas Meher
Patrick T. Brandt
ConflLlama: Domain-specific adaptation of large language models for conflict event classification
Research & Politics
title ConflLlama: Domain-specific adaptation of large language models for conflict event classification
title_full ConflLlama: Domain-specific adaptation of large language models for conflict event classification
title_fullStr ConflLlama: Domain-specific adaptation of large language models for conflict event classification
title_full_unstemmed ConflLlama: Domain-specific adaptation of large language models for conflict event classification
title_short ConflLlama: Domain-specific adaptation of large language models for conflict event classification
title_sort conflllama domain specific adaptation of large language models for conflict event classification
url https://doi.org/10.1177/20531680251356282
work_keys_str_mv AT shreyasmeher conflllamadomainspecificadaptationoflargelanguagemodelsforconflicteventclassification
AT patricktbrandt conflllamadomainspecificadaptationoflargelanguagemodelsforconflicteventclassification