机器学习训练完全指南：从基础概念到深度学习实践June 29, 2025 · 3 min read基本概念 Linear model(b+wxb + wxb+wx) Sigmoid [y=b+∑ici sigmoid(bi+∑jwijxj)][ y = b + \sum_i c_i \, \text{sigmoid} \left( b_i + \sum_j w_{ij}x_j \right) ][y=b+∑icisigmoid(bi+∑jwijxj)]
