Perceptron, BP Having : Output input(x1) input(x2) 1 4.383 -4.114 -1 -2.223 1.915 1 2.793 3.335 -1 0.386 -4.508 1 1.649 -3.579 -1 -2.638 -4.973 1 3.69 -4.941 We predict a function: sign(wx + b) Try to find w and b