Crate lc_rag 

RAG (Retrieval-Augmented Generation) module for LangChainRust.

Provides document loaders, text splitters, retrievers, BM25 search, hybrid retrieval, GraphRAG, HyDE, multi-query, reranking, and a full RAG pipeline builder.

Re-exports

pub use pipeline::RAGPipeline;

pub use pipeline::RAGPipelineBuilder;

pub use pipeline::RAGQueryResult;

pub use loaders::CSVLoader;

pub use loaders::DocumentLoader;

pub use loaders::DocxLoader;

pub use loaders::HTMLLoader;

pub use loaders::JSONLoader;

pub use loaders::LoaderError;

pub use loaders::MarkdownLoader;

pub use loaders::PDFLoader;

pub use loaders::SitemapLoader;

pub use loaders::TextLoader;

pub use loaders::WebScraperLoader;

pub use retriever::Retriever;

pub use retriever::RetrieverError;

pub use retriever::RetrieverTrait;

pub use retriever::SimilarityRetriever;

pub use semantic_splitter::SemanticSplitter;

pub use bm25::AutoMergingConfig;

pub use bm25::BM25Index;

pub use bm25::BM25Params;

pub use bm25::BM25Retriever;

pub use bm25::ChunkedBM25Retriever;

pub use bm25::ChunkedSearchResult;

pub use bm25::Tokenizer;

pub use chunked_hybrid::ChunkedHybridRetriever;

pub use hybrid::reciprocal_rank_fusion;

pub use hybrid::HybridRetriever;

pub use hybrid::RetrievalSource;

pub use hybrid::RetrievedDocument;

pub use unified_hybrid::HybridIndexConfig;

pub use unified_hybrid::HybridSearchResult;

pub use unified_hybrid::UnifiedHybridIndex;

pub use multi_query::MultiQueryConfig;

pub use multi_query::MultiQueryError;

pub use multi_query::MultiQueryRetriever;

pub use multi_query::StaticQueryGenerator;

pub use hyde::HyDEConfig;

pub use hyde::HyDEError;

pub use hyde::HyDERetriever;

pub use reranking::BM25Reranker;

pub use reranking::KeywordReranker;

pub use reranking::Reranker;

pub use reranking::RerankingConfig;

pub use reranking::RerankingError;

pub use reranking::RerankingExecutor;

pub use graph_rag::Community as GraphCommunity;

pub use graph_rag::Entity as GraphEntity;

pub use graph_rag::GraphStore;

pub use graph_rag::Relation as GraphRelation;

pub use graph_rag::GraphRAG;

pub use graph_rag::GraphRAGConfig;

pub use graph_rag::GraphRAGError;

pub use graph_rag::GraphRAGResult;

pub use graph_rag::QueryMode;

Modules

bm25

BM25 检索模块

chunked_hybrid

Chunked Hybrid Retriever - BM25 + 向量混合检索器

graph_rag

GraphRAG (Knowledge Graph RAG) module.

hybrid

混合检索模块

hyde

HyDE (Hypothetical Document Embedding) Retriever 实现

loaders

文档加载器实现

multi_query

MultiQueryRetriever 实现

pipeline

RAGPipeline & RAGPipelineBuilder — 一行搞定 RAG 管线

reranking

Reranking（重排序）实现

retriever

检索器实现

semantic_splitter

语义分块器

splitter

文本分割器实现

unified_hybrid

Unified Hybrid Index - 统一混合索引

Structs

ChunkDocument

Chunk document (split document fragment).

ChunkedVectorStore

Chunked Vector Store

Document

Document structure.

InMemoryDocumentStore

内存文档存储

InMemoryVectorStore

内存向量存储

MockEmbeddings

Mock embeddings for testing purposes.

OpenAIEmbeddings

OpenAI Embeddings client

RecursiveCharacterSplitter

Recursive character splitter

SearchResult

Search result.

Enums

EmbeddingError

Embedding error type

VectorStoreError

Vector store error types.

Traits

ChunkedDocumentStoreTrait

支持 Parent-Child 结构的文档存储 trait

DocumentStore

文档存储 trait

Embeddings

Embedding model trait

TextSplitter

Text splitter trait

VectorStore

Vector store trait.

Functions

cosine_similarity

Compute cosine similarity between two vectors.

Type Aliases

ChunkedDocumentStore