A Comparison of Conversational Models and Humans in Answering Technical Questions: the Firefox Case
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914114199093248 |
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| author | Correia, Joao Coutinho, Daniel Castelluccio, Marco Barbosa, Caio de Mello, Rafael Sarma, Anita Garcia, Alessandro Gerosa, Marco Steinmacher, Igor |
| author_facet | Correia, Joao Coutinho, Daniel Castelluccio, Marco Barbosa, Caio de Mello, Rafael Sarma, Anita Garcia, Alessandro Gerosa, Marco Steinmacher, Igor |
| contents | The use of Large Language Models (LLMs) to support tasks in software development has steadily increased over recent years. From assisting developers in coding activities to providing conversational agents that answer newcomers' questions. In collaboration with the Mozilla Foundation, this study evaluates the effectiveness of Retrieval-Augmented Generation (RAG) in assisting developers within the Mozilla Firefox project. We conducted an empirical analysis comparing responses from human developers, a standard GPT model, and a GPT model enhanced with RAG, using real queries from Mozilla's developer chat rooms. To ensure a rigorous evaluation, Mozilla experts assessed the responses based on helpfulness, comprehensiveness, and conciseness. The results show that RAG-assisted responses were more comprehensive than human developers (62.50% to 54.17%) and almost as helpful (75.00% to 79.17%), suggesting RAG's potential to enhance developer assistance. However, the RAG responses were not as concise and often verbose. The results show the potential to apply RAG-based tools to Open Source Software (OSS) to minimize the load to core maintainers without losing answer quality. Toning down retrieval mechanisms and making responses even shorter in the future would enhance developer assistance in massive projects like Mozilla Firefox. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_21933 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Comparison of Conversational Models and Humans in Answering Technical Questions: the Firefox Case Correia, Joao Coutinho, Daniel Castelluccio, Marco Barbosa, Caio de Mello, Rafael Sarma, Anita Garcia, Alessandro Gerosa, Marco Steinmacher, Igor Software Engineering Artificial Intelligence The use of Large Language Models (LLMs) to support tasks in software development has steadily increased over recent years. From assisting developers in coding activities to providing conversational agents that answer newcomers' questions. In collaboration with the Mozilla Foundation, this study evaluates the effectiveness of Retrieval-Augmented Generation (RAG) in assisting developers within the Mozilla Firefox project. We conducted an empirical analysis comparing responses from human developers, a standard GPT model, and a GPT model enhanced with RAG, using real queries from Mozilla's developer chat rooms. To ensure a rigorous evaluation, Mozilla experts assessed the responses based on helpfulness, comprehensiveness, and conciseness. The results show that RAG-assisted responses were more comprehensive than human developers (62.50% to 54.17%) and almost as helpful (75.00% to 79.17%), suggesting RAG's potential to enhance developer assistance. However, the RAG responses were not as concise and often verbose. The results show the potential to apply RAG-based tools to Open Source Software (OSS) to minimize the load to core maintainers without losing answer quality. Toning down retrieval mechanisms and making responses even shorter in the future would enhance developer assistance in massive projects like Mozilla Firefox. |
| title | A Comparison of Conversational Models and Humans in Answering Technical Questions: the Firefox Case |
| topic | Software Engineering Artificial Intelligence |
| url | https://arxiv.org/abs/2510.21933 |