kotaemon/docs/development/data-components.md

Data & Data Structure Components

The data & data structure components include:

• The Document class.
• The document store.
• The vector store.

Data Loader

• PdfLoader

• Layout-aware with table parsing PdfLoader

  • MathPixLoader: To use this loader, you need MathPix API key, refer to mathpix docs for more information

  • OCRLoader: This loader uses lib-table and Flax pipeline to perform OCR and read table structure from PDF file (TODO: add more info about deployment of this module).

  • Output:

    • Document: text + metadata to identify whether it is table or not

      - "source": source file name
      - "type": "table" or "text"
      - "table_origin": original table in markdown format (to be feed to LLM or visualize using external tools)
      - "page_label": page number in the original PDF document
      

Document Store

• InMemoryDocumentStore

Vector Store

• ChromaVectorStore
• InMemoryVectorStore