Pacibook Journal

AI-Powered Metadata and Cataloguing: Improving Search in Digital Libraries

Metadata quality determines whether readers find the right book. This post explores AI cataloguing tools and the need for human oversight.

By Pacibook Editorial Team2 min read302 words
AI metadata generationlibrary cataloguing AImultilingual embeddingsmetadata accuracyhuman-in-the-loop cataloguing
Library card catalog drawers

Metadata is the secret engine of discovery

Readers rarely search by perfect title or author name. They search for ideas, themes, and needs. Metadata connects those needs to the right content. When metadata is poor, the entire library feels invisible.

AI can help, but only when it is guided with care.

What AI can do well today

Libraries are using transformer models to predict titles and authors with strong success rates. They are also experimenting with multilingual embeddings to classify content in multiple languages.

AI is good at:

  • Extracting titles and author names from messy data.
  • Suggesting keywords based on text content.
  • Translating metadata fields across languages.

Where AI still struggles

Subject classification and nuanced topics are hard. Some studies show around 35% accuracy for subject classification without human review. That is not enough for trusted cataloguing.

If the system confuses history with politics or literature with sociology, readers will stop trusting the catalog.

The human-in-the-loop approach

The best results come from collaboration:

  • AI suggests metadata quickly.
  • Librarians review and correct.
  • The corrected data trains better models over time.

This loop creates speed without sacrificing quality.

Why this matters for multilingual libraries

In multilingual collections, metadata must respect local terms, spellings, and cultural context. A Hindi keyword might not map cleanly to an English category. Human review ensures nuance is not lost.

How Pacibook can lead

Pacibook can combine AI and human expertise to deliver:

  • Accurate, localized metadata across 22 languages.
  • Better search results and higher reader retention.
  • Cleaner analytics that inform future acquisitions.

Closing thoughts

Metadata is not a back-office detail. It is the front door to the library. When AI and human expertise work together, that door stays open and welcoming for every reader.

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