351.Cost at parameters (loaded from ex4weights): 0.000000
352.(this value should be about 0.287629)
353.Program paused. Press enter to continue.
354.Get y size; give up; (2019-4-5)
355.Sigmoid function is correct; done; (2019-4-7)
356.Get to know size of delta; is a scalar; (2019-4-7)
357.Figure out size of each variables; (2019-4-9)
358.X, 5000400; 5000401; (2019-4-9)
359.Theta1, 25*401; (2019-4-9)
371.Q1
372.Q2
373.Q3
374.Q4
375.Q5
376.Q6
377.Modify ex4.m to make it clearer; (2019-4-11)
378.How to calculate error_train and error_val; compute cost when lambda = 0; (2019-4-12)
379.What is lambda? Passed; (2019-4-12)
321.Log in register and change direction; (2019-3-26)
322.Add a hypothesis to function; done; (2019-3-27)
323.Get inner product of vectors; done; (2019-3-27)
324.Get to know initial_theta, X, y, lambda; done; (2019-3-27)
325.Run cost, done; (2019-3-28)
326.Figure out what is legend; done; (2019-3-28)
327.What is y; 50001; (2019-3-29)
328.When to use y==c; done; (2019-3-29)
329.Figure out theta1 25(400+1), theta2 10*(25+1), X 5000400, p 50001; done; (2019-3-29)
551.Q6
552.Q7
553.Q8
554.Q9
555.Q10
556.Building your Deep Neural Network: Step by Step
557.1 - Packages
558.2 - Outline of the Assignment
559.3 - Initialization
311.Call tianji; waiting until March 25; (2019-3-22)
312.Change github user name; done; (2019-3-22)
313.Install wamp on windows; done; (2019-3-23)
314.Install foxit reader; install java; (2019-3-23)
315.原来theta是向量,两个分量;done; (2019-3-24)
316.Install qq; change name; done; (2019-3-25)
317.Write weekly report; done; (2019-3-25)
318.Try to understand what is data; write a test; X is first two column; y is third column; (2019-3-26)
319. operator /: nonconformant arguments; use ./; done; (2019-3-26)