
Pyversity with Thomas van Dongen - Weaviate Podcast #132!
From Weaviate Podcast by Weaviate
December 8, 2025 · 1h 1m
About this episode
Thomas van Dongen discusses Pyversity, a Python library designed to enhance diversity in retrieval results.
Thomas van Dongen is the head of AI engineering at Springer Nature and the creator of Pyversity! Pyversity is a fast, lightweight open-source Python library for diversifying retrieval results. Retrieval systems often return highly similar items. Pyversity efficiently re-ranks these results to encourage diversity, surfacing items that remain relevant but less redundant. It implements several popular diversification strategies such as MMR, MSD, DPP, and Cover with a clear, unified API.
People in this episode
Guest: Thomas van Dongen
Topics covered
- AI engineering
- diversification
- retrieval systems
- open-source
- Python library
Keywords
- Pyversity
- diversification strategies
- retrieval results
- MMR
- MSD
- DPP
- Cover
Mentioned in this episode
Organizations: Springer Nature
Products: Pyversity
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