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🔧 Programmierung 🕛 kürzlich 3 Min Lesezeit
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Semantic Document Search System with pgvector and pgai

↗ Quelle (dev.to)
🗣️ Stimme:
📑 Inhaltsübersicht

This is a submission for the

  • User-friendly interface built with Streamlit

  • Document addition and indexing from GUI

  • Rich metadata support for categorization

  • Simple table view and a detailed view for data

  • Scalable vector search using pgvector's IVFFlat indexing



  • In cases where you have to manage and search through large collections of documents based on meaning rather than just keywords, this tool is very helpful. Particularly useful for knowledge bases, content management systems, etc.



    GitHub repo:



    (PostgreSQL) for primary database (can be configured for self hosted psql as well)


  • through TimescaleDB for AI


  • (all-MiniLM-L6-v2 model)

  • 384-dimensional embeddings for semantic representation




  • Backend




    • Python 3.12+

    • psycopg2 for PostgreSQL interaction

    • Vector similarity calculations using cosine distance




  • Frontend




    • Streamlit for the web interface

    • Pandas for data display

    • Download data as CSV files








  • Final Thoughts



    This project is about integrating AI vector search features with traditional databases (which are hard to get used to). This is a very helpful tool for content management systems where you need to manage and search through large collections of documents. Integration of pgvector and pgai provides a great solution along with Streamlit for simple and user-friendly interfaces.






    TODO




    • Better visualization of results using charts and stuff

    • Batch document processing (import CSV)

    • Delete, update documents functionality

    • Filtering based on metadata as well

    • More use cases of pgai

    Vollständiger Original-Bericht
    Ausführliche Details, Code-Beispiele & Hersteller-Stellungnahme auf dev.to.
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