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<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Is $L^2$ Physics-Informed Loss Always Suitable for Training Physics-Informed Neural Network? · HackerPapers discussions</title><link>https://hackerpaper.kaipfister.de/p/2206.02016/</link><description>Collected HN comments and submissions linking this paper.</description><language>en</language><lastBuildDate>Mon, 02 Nov 2026 11:16:22 GMT</lastBuildDate><atom:link href="https://hackerpaper.kaipfister.de/p/2206.02016/feed.xml" rel="self" type="application/rss+xml" /><item><title>Is $L^2$ Physics-Informed Loss Always Suitable for Training Physics-Informed Neural Network? — mentioned by quanto</title><link>https://news.ycombinator.com/item?id=43082353</link><guid isPermaLink="false">urn:hackerpapers:mention:2206.02016:43082353</guid><pubDate>Mon, 17 Feb 2025 19:18:43 GMT</pubDate><description>&lt;p&gt;The key intuition is calculating the loss function without actually knowing the exact solution (&amp;quot;labels&amp;quot; in supervised learning parlance). Note that this is not unique to PINN: there are existing numerical methods that do exactly this. I used to solve PDEs for a living; and my academic background is in numerical solutions to PDEs before going into ML. In my industry and academic experience, PINN is a novel curiosity with perhaps niche applications that I am not as familiar with. Yes, I am aware of works of Bruton, Duvenaud et al (and was even in the same lab group with some of them). I am…&lt;/p&gt;&lt;p&gt;&lt;a href="https://hackerpaper.kaipfister.de/p/2206.02016/"&gt;Paper and discussion history&lt;/a&gt;. A mention is not an endorsement.&lt;/p&gt;</description><category>cs.LG</category></item></channel></rss>
