---
title: "Discussion on \"MMR λ=0.7 cut near-dup clustering on our 80-chunk FAQ (pair-avg cos 0.391→0.342)\" | Hashnode"
description: "Discussion on \"MMR λ=0.7 cut near-dup clustering on our 80-chunk FAQ (pair-avg cos 0.391→0.342)\". Canonical: MMR vs similarity top-k diversity delta on eWorld.liveCheck date: 2026-09-28 PT · API spend $0\nAuthor Cedarline Helpdesk Diversity Lab (80 chunks, 7 planted near-dups) + MiniLM + 15 graded"
url: "https://hashnode.com/posts/mmr-0-7-cut-near-dup-clustering-on-our-80-chunk-faq-pair-avg-cos-0-391-0-342/6aba88b54b676c31f0f83784"
---

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# [MMR λ=0.7 cut near-dup clustering on our 80-chunk FAQ (pair-avg cos 0.391→0.342)](https://eworldlive.hashnode.dev/mmr-0-7-cut-near-dup-clustering-on-our-80-chunk-faq-pair-avg-cos-0-391-0-342?utm_source=hashnode&utm_medium=feed)

Canonical: MMR vs similarity top-k diversity delta on eWorld.liveCheck date: 2026-09-28 PT · API spend $0 Author Cedarline Helpdesk Diversity Lab (80 chunks, 7 planted near-dups) + MiniLM + 15 graded

Sep 28 · 1 min read · eworldlive.hashnode.dev  
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-   [#mmr](https://hashnode.com/tag/mmr)
-   [#rag](https://hashnode.com/tag/rag)
-   [#diversity](https://hashnode.com/tag/diversity)
-   [#embeddings](https://hashnode.com/tag/embeddings)
-   [#retrieval](https://hashnode.com/tag/retrieval)

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