<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Yujun Kim |</title><link>https://nick-jhlee.github.io/authors/yujun-kim/</link><atom:link href="https://nick-jhlee.github.io/authors/yujun-kim/index.xml" rel="self" type="application/rss+xml"/><description>Yujun Kim</description><generator>HugoBlox Kit (https://hugoblox.com)</generator><language>en-us</language><lastBuildDate>Thu, 21 May 2026 00:00:00 +0000</lastBuildDate><item><title>Looking Through the Mirror: Minimax-Optimal Regularized Regrets in Online Learning and Bandits</title><link>https://nick-jhlee.github.io/publications/arxiv26-regularized-regret/</link><pubDate>Thu, 21 May 2026 00:00:00 +0000</pubDate><guid>https://nick-jhlee.github.io/publications/arxiv26-regularized-regret/</guid><description/></item></channel></rss>