DeepRetrieval: Hacking Real Search Engines and Retrievers with Large Language Models via Reinforcement Learning
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866913789140533248 |
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| author | Jiang, Pengcheng Lin, Jiacheng Cao, Lang Tian, Runchu Kang, SeongKu Wang, Zifeng Sun, Jimeng Han, Jiawei |
| author_facet | Jiang, Pengcheng Lin, Jiacheng Cao, Lang Tian, Runchu Kang, SeongKu Wang, Zifeng Sun, Jimeng Han, Jiawei |
| contents | Information retrieval systems are crucial for enabling effective access to large document collections. Recent approaches have leveraged Large Language Models (LLMs) to enhance retrieval performance through query augmentation, but often rely on expensive supervised learning or distillation techniques that require significant computational resources and hand-labeled data. We introduce DeepRetrieval, a reinforcement learning (RL) approach that trains LLMs for query generation through trial and error without supervised data (reference query). Using retrieval metrics as rewards, our system generates queries that maximize retrieval performance. DeepRetrieval outperforms leading methods on literature search with 65.07% (vs. previous SOTA 24.68%) recall for publication search and 63.18% (vs. previous SOTA 32.11%) recall for trial search using real-world search engines. DeepRetrieval also dominates in evidence-seeking retrieval, classic information retrieval and SQL database search. With only 3B parameters, it outperforms industry-leading models like GPT-4o and Claude-3.5-Sonnet on 11/13 datasets. These results demonstrate that our RL approach offers a more efficient and effective paradigm for information retrieval. Our data and code are available at: https://github.com/pat-jj/DeepRetrieval. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_00223 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | DeepRetrieval: Hacking Real Search Engines and Retrievers with Large Language Models via Reinforcement Learning Jiang, Pengcheng Lin, Jiacheng Cao, Lang Tian, Runchu Kang, SeongKu Wang, Zifeng Sun, Jimeng Han, Jiawei Information Retrieval Information retrieval systems are crucial for enabling effective access to large document collections. Recent approaches have leveraged Large Language Models (LLMs) to enhance retrieval performance through query augmentation, but often rely on expensive supervised learning or distillation techniques that require significant computational resources and hand-labeled data. We introduce DeepRetrieval, a reinforcement learning (RL) approach that trains LLMs for query generation through trial and error without supervised data (reference query). Using retrieval metrics as rewards, our system generates queries that maximize retrieval performance. DeepRetrieval outperforms leading methods on literature search with 65.07% (vs. previous SOTA 24.68%) recall for publication search and 63.18% (vs. previous SOTA 32.11%) recall for trial search using real-world search engines. DeepRetrieval also dominates in evidence-seeking retrieval, classic information retrieval and SQL database search. With only 3B parameters, it outperforms industry-leading models like GPT-4o and Claude-3.5-Sonnet on 11/13 datasets. These results demonstrate that our RL approach offers a more efficient and effective paradigm for information retrieval. Our data and code are available at: https://github.com/pat-jj/DeepRetrieval. |
| title | DeepRetrieval: Hacking Real Search Engines and Retrievers with Large Language Models via Reinforcement Learning |
| topic | Information Retrieval |
| url | https://arxiv.org/abs/2503.00223 |