Building a RAG chain using LangChain Expression Language (LCEL)

Learning the building blocks of LCEL to develop increasingly complex RAG chains

In this post, I will be going over the implementation of a Self-evaluation RAG pipeline for question-answering using LangChain Expression Language (LCEL). The focus of this post will be on the use of LCEL for building pipelines and not so much on the actual RAG and self evaluation principles used, which are kept simple for ease of understanding.

I will be covering the following topics :

1. Basic …

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