Multimodal retrieval for text and image collections

Multimodal ML
Embeddings
Retrieval
A project template for embedding-based understanding across text, image, and metadata.
Published

April 26, 2026

System Goal

Build a retrieval system that can search across text, images, and structured metadata using embeddings and multimodal representations.

Why This Matters

Many real knowledge systems are not text-only. Product catalogs, research archives, clinical notes, policy documents, dashboards, and educational content often require joint understanding of text, images, figures, and metadata.

Architecture

Planned components:

  • Dataset curation and metadata schema.
  • Text and image embedding generation.
  • Vector index construction.
  • Hybrid search with filters.
  • Evaluation using labeled queries.
  • Error analysis for false positives and missed matches.

Evaluation Plan

Track:

  • Recall at k.
  • Precision at k.
  • Query class performance.
  • Cross-modal retrieval quality.
  • Robustness to noisy metadata.
  • Latency and storage tradeoffs.

Notebook Plan

  • notebooks/multimodal-retrieval-system/01-data-model.ipynb
  • notebooks/multimodal-retrieval-system/02-embedding-pipeline.ipynb
  • notebooks/multimodal-retrieval-system/03-vector-search.ipynb
  • notebooks/multimodal-retrieval-system/04-error-analysis.ipynb