<?xml version="1.0" encoding="utf-8" standalone="yes"?><?xml-stylesheet type="text/xsl" href="/rss.xsl"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Sampling · berkin says</title><link>https://berkinsays.com/tags/sampling/</link><description>Sampling 栏目的最新文章 · berkin says — berkin · 代码 · 山水 · 慢长文</description><generator>Hugo</generator><language>zh-cn</language><lastBuildDate>Mon, 01 Jun 2026 10:30:00 +0800</lastBuildDate><atom:link href="https://berkinsays.com/tags/sampling/index.xml" rel="self" type="application/rss+xml"/><item><title>L1-3 · 基数、采样与认识论：你不可能记录全部</title><link>https://berkinsays.com/posts/tech/l1-3-cardinality-sampling-epistemology/</link><pubDate>Mon, 01 Jun 2026 10:30:00 +0800</pubDate><guid>https://berkinsays.com/posts/tech/l1-3-cardinality-sampling-epistemology/</guid><description>可观测体系永远是 lossy 的，每次采样、聚合、保留期决策都是认识论选择——它决定了你能回答什么问题、不能回答什么问题。</description></item></channel></rss>