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Basic Information

s3 is a research and development framework for training search agents used in retrieval-augmented generation (RAG). It focuses on teaching language models how to perform better document search and retrieval via reinforcement learning without modifying the generator model. The project provides a modular pipeline for preparing corpora and indices, precomputing a naïve RAG cache, deploying retrieval and generator services, running RL-based training, performing inference, and evaluating results. The README highlights efficiency, claiming strong QA performance using far less data than prior methods. The codebase is intended for engineers and researchers who want to train and benchmark search components that work with black-box LLMs and to reproduce experiments presented in the accompanying arXiv paper.

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App Details

Features
s3 includes scripts and automation to install and configure environments for both searcher and retriever components, including conda environment files and dependency recommendations such as torch, vllm, ray, pyserini, faiss-gpu, flash-attn, and tooling like wandb. It supplies data preparation utilities to download indexes and corpora and to assemble an index file. There are deployment scripts to launch retriever and generator services and dedicated bash scripts to run training, s3 inference, and multiple baseline methods (RAG, DeepRetrieval, Search-R1, IRCoT, Search-o1). The repo also contains evaluation scripts and utilities for precomputing RAG caches, plus example configs to run on multi-GPU setups.
Use Cases
s3 helps researchers and practitioners build, train, and evaluate search-focused components for RAG systems without altering the underlying generator. By isolating the search agent, the framework enables efficient RL training that reportedly needs much less data to improve retrieval for QA tasks. The provided end-to-end scripts simplify replication of experiments: downloading data and indices, deploying retrievers and generators, precomputing caches, launching training, running inference, and evaluating with established baselines. Integration with Pyserini, FAISS, vllm and common ML toolchains makes it suitable for GPU-based setups and benchmarking. The repo also includes citation and acknowledgements for reproducibility and research use.

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