<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="3.10.0">Jekyll</generator><link href="https://xiyugraceding.github.io/feed.xml" rel="self" type="application/atom+xml" /><link href="https://xiyugraceding.github.io/" rel="alternate" type="text/html" /><updated>2026-05-03T17:05:34-04:00</updated><id>https://xiyugraceding.github.io/feed.xml</id><title type="html">Xiyu Ding</title><subtitle>PhD Researcher in Healthcare AI &amp; Real-World Evidence at Johns Hopkins University</subtitle><author><name>Xiyu Ding</name><email>dxy_03@outlook.com</email></author></feed>