<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Home</title><description>AI/ML research engineer, traversing latent manifolds, and compressing reality into geometry.</description><link>https://hasssen.xyz/</link><item><title>Matryoshka Representation Learning for Medical Coding</title><link>https://hasssen.xyz/blog/matryoshka-icd/</link><guid isPermaLink="true">https://hasssen.xyz/blog/matryoshka-icd/</guid><description>How nesting embeddings at multiple dimensions solves a real inference problem in clinical NLP — and why the geometric intuition matters more than the loss function.</description><pubDate>Sun, 10 May 2026 00:00:00 GMT</pubDate></item><item><title>AstraGraph</title><link>https://hasssen.xyz/projects/astragraph/</link><guid isPermaLink="true">https://hasssen.xyz/projects/astragraph/</guid><description>Full-stack GraphRAG system combining a Neo4j property graph and Qdrant vector store to answer structural and semantic queries over Python codebases.</description><pubDate>Wed, 01 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Matryoshka-ICD</title><link>https://hasssen.xyz/projects/matryoshka-icd/</link><guid isPermaLink="true">https://hasssen.xyz/projects/matryoshka-icd/</guid><description>Multi-label ICD coding for clinical radiology reports using BioClinical-ModernBERT and Matryoshka Representation Learning — adaptive embeddings across dimensions without retraining.</description><pubDate>Sun, 15 Feb 2026 00:00:00 GMT</pubDate></item><item><title>vMFMM: Hyperspherical Clustering for Production Vision</title><link>https://hasssen.xyz/projects/vmfmm/</link><guid isPermaLink="true">https://hasssen.xyz/projects/vmfmm/</guid><description>Custom von Mises-Fisher Mixture Model replacing Euclidean GMM in a production edge vision pipeline — 98% Top-4 Macro recall across 500K+ images from 6 encoder architectures.</description><pubDate>Fri, 01 Aug 2025 00:00:00 GMT</pubDate></item></channel></rss>