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Ryan Siegler - Data Scientist

Unveiling the Power of Multimodal RAG

KDB.AI Vector Database Introduction to RAG What is Multimodal data? Multimodal RAG

  • Retrieval
  • Generation



The vector database that enables the most relevant temporal and semantic search to power language models and anomaly detection at scale.

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Integrated with Azure ML and OpenAI for developers who require turnkey technology stacks to speed up the process of building and deploying AI applications.

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Experiment with smaller generative AI projects with a vector database in our cloud.

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  • 30 GB data storage
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Architecture Walkthrough

  • Ingest source data
  • Embed source data using embedding model
  • Vector Embeddings are stored in KDB.AI vector database
  • Query the database to find relevant vectors

Understanding Vector Embeddings

Architecture Walkthrough

Retrieval Augmented Generation (RAG) enables LLMs to work on your own data. Two Key Steps:

  • Retrieval
  • Generation
Vector databases are the center of the retrieval pipeline Retrieve the most relevant data from the vector db using vector similarity search Metadata filtering on this search could improve the speed and the relevance of the Top-K retrieved results

Retrieval Augmented Generation (RAG)

Multimodal Data

Data Representation

Goal is to represent different data modalities in a unified manner within a vector database. Embed all data types in a shared vector space Use a single multimodal embedding model

Multimodal Embedding Model

Unified Text Embedding

Transform all data into text format Text embedding model used to embed text, image summaries, and audio transcriptions

Multimodal Embedding Unified Text

Architecture Walkthrough

Unified Text

  • Summarize Images & Tables
  • Use text embedding model
  • Store text embeddings in vector database
Multimodal Embedding
  • Embedding model can embed multiple modalities together
  • Store embeddings in vector database
  • Limitation: Few available models
  • Either method can be used to retrieve embeddings
  • Pass retrieved data to LLM to perform RAG

Multimodal Retrieval Methods

  • User Query and Retrieved Data is passed to LLM for Generation
  • Generation: What type of LLM should I use?
    • Multimodal LLM: Can take multiple data types as inputs
    • Text based LLM: Pass only text-based data like text chunks, summaries, and transcriptions to the LLM

RAG - Generation