mirror of
https://github.com/hwchase17/langchain.git
synced 2025-11-04 10:10:09 +00:00
ec489599fd
This PR corrects a typo in the langchain [documentation.](https://python.langchain.com/en/latest/modules/indexes.html#:~:text=We%20therefor%20have%20a%20concept) It corrects the word `therefor` to `therefore`
60 lines
2.0 KiB
ReStructuredText
60 lines
2.0 KiB
ReStructuredText
Indexes
|
|
==========================
|
|
|
|
.. note::
|
|
`Conceptual Guide <https://docs.langchain.com/docs/components/indexing>`_
|
|
|
|
|
|
Indexes refer to ways to structure documents so that LLMs can best interact with them.
|
|
This module contains utility functions for working with documents, different types of indexes, and then examples for using those indexes in chains.
|
|
|
|
The most common way that indexes are used in chains is in a "retrieval" step.
|
|
This step refers to taking a user's query and returning the most relevant documents.
|
|
We draw this distinction because (1) an index can be used for other things besides retrieval, and (2) retrieval can use other logic besides an index to find relevant documents.
|
|
We therefore have a concept of a "Retriever" interface - this is the interface that most chains work with.
|
|
|
|
Most of the time when we talk about indexes and retrieval we are talking about indexing and retrieving unstructured data (like text documents).
|
|
For interacting with structured data (SQL tables, etc) or APIs, please see the corresponding use case sections for links to relevant functionality.
|
|
The primary index and retrieval types supported by LangChain are currently centered around vector databases, and therefore
|
|
a lot of the functionality we dive deep on those topics.
|
|
|
|
For an overview of everything related to this, please see the below notebook for getting started:
|
|
|
|
.. toctree::
|
|
:maxdepth: 1
|
|
|
|
./indexes/getting_started.ipynb
|
|
|
|
We then provide a deep dive on the four main components.
|
|
|
|
**Document Loaders**
|
|
|
|
How to load documents from a variety of sources.
|
|
|
|
**Text Splitters**
|
|
|
|
An overview of the abstractions and implementions around splitting text.
|
|
|
|
|
|
**VectorStores**
|
|
|
|
An overview of VectorStores and the many integrations LangChain provides.
|
|
|
|
|
|
**Retrievers**
|
|
|
|
An overview of Retrievers and the implementations LangChain provides.
|
|
|
|
Go Deeper
|
|
---------
|
|
|
|
|
|
.. toctree::
|
|
:maxdepth: 1
|
|
|
|
./indexes/document_loaders.rst
|
|
./indexes/text_splitters.rst
|
|
./indexes/vectorstores.rst
|
|
./indexes/retrievers.rst
|
|
|