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初めてのLangChain ―LangChainとLangGraphによるAI/LLMアプリケーションの構築
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初めてのLangChain ―LangChainとLangGraphによるAI/LLMアプリケーションの構築

by Mayo Oshin, Nuno Campos, 新井 翔太, 嶋田 健志
September 2025
Intermediate to advanced
296 pages
4h 30m
Japanese
O'Reilly Japan, Inc.

Overview

LangChainは、大規模言語モデルを活用したアプリケーション開発を支えるフレームワークです。本書では、プロンプト設計、RAGインデックス構築、会話メモリ、外部ツール連携、自律エージェントについて詳しく説明し、基本理論から実装、テスト、CI/CD、運用監視、継続的改善までの全プロセスをPythonとJavaScriptによる豊富なサンプルコードで丁寧に解説しています。さらに、LangGraphによる高度なエージェントアーキテクチャ、外部データやツールの連携、監視や評価の手法まで網羅しており、社内文書検索、FAQボット、パーソナライズドアシスタント、業務自動化など、さまざまなLLMプロジェクト要件に対応できる内容となっています。

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Publisher Resources

ISBN: 9784814401307Publisher Website