Wu, Yinchu, and Jiale Gao. “Post-Hoc Calibration of Classical and Shallow Neural Classifiers for Handwritten Digit Recognition: An Empirical Comparison under Limited Calibration Data”. Spectrum of Research 6, no. 2 (September 25, 2026). Accessed October 29, 2026. https://spectrumofresearch.com/index.php/sr/article/view/66.