An approximation theory perspective on machine learning
Hrushikesh N. Mhaskar, Efstratios Tsoukanis, Ameya D. Jagtap · Neural Networks · 2026
are drawn from a finite set of values. We summarize another recent paper that establishes a deep connection between signal separation problems and classification problems, proposing that classification tasks should be approached as instances of signal separation. We conclude by identifying several open research problems that warrant further investigation.