// Hacker Noon · 17 January 2026

HSVM Decision Boundaries: Visualizing PGD vs. SDP and Moment Relaxation

We visualize the decision boundary of for PGD, SDP relaxation and sparse moment-sum-of-squares relaxation (Moment) on one fold of the training to provide qualitative judgements. While SDP and moment overlap, they differ from the PGD solution. This slight visual difference causes the performance diff...

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