# Pyversity with Thomas van Dongen - Weaviate Podcast #132!

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Text version: https://stenobird.com/podcast/weaviate-podcast-6288219/pyversity-with-thomas-van-dongen-weaviate-podcast-132.md
Podcast: [Weaviate Podcast](https://stenobird.com/podcast/weaviate-podcast-6288219)
Published: 2025-12-08T02:11:35+00:00
Episode link: https://podcasters.spotify.com/pod/show/weaviate/episodes/Pyversity-with-Thomas-van-Dongen---Weaviate-Podcast-132-e3c1a0o
Audio file: https://anchor.fm/s/cffc3468/podcast/play/112289240/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2025-11-8%2F87ec0c57-39c3-10bf-5868-db52fc92dcbc.mp3
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JSON: https://stenobird.com/v1/public/podcasts/weaviate-podcast-6288219/episodes/pyversity-with-thomas-van-dongen-weaviate-podcast-132
Duration seconds: 3631

## Resource

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.

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## Transcript

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