arxivcs.LGmath.SP2026-07-09
Spectral Stability of Pseudoinverse-Based Extreme Learning Machine
Bich Van Nguyen, Ngoc Anh Khong
Extreme Learning Machine (ELM) computes output weights analytically using the Moore-Penrose pseudoinverse. Although this leads to fast training, its numerical stability depends strongly on the conditioning of the hidden layer matrix. This paper studies pseudoinverse-based ELM fro…