import?numpy

def?sigmoid（inpt）:
????return?1.0/（1.0+numpy.exp（-1*inpt））

def?relu（inpt）:
????result?=?inpt
????result[inpt<0]?=?0
????return?result

def?predict_outputs（weights_mat?data_inputs?data_outputs?activation=“relu“）:
????predictions?=?numpy.zeros（shape=（data_inputs.shape[0]））
????for?sample_idx?in?range（data_inputs.shape[0]）:
????????r1?=?data_inputs[sample_idx?:]
????????for?curr_weights?in?weights_mat:
????????????r1?=?numpy.matmul（r1?curr_weights）
????????????if?activation?==?“relu“:
????????????????r1?=?relu（r1）
????????????elif?activation?==?“sigmoid“:
????????????????r1?=?sigmoid（r1）
????????predicted_label?=?numpy.where（r1?==?numpy.max（r1））[0][0]
????????predictions[sample_idx]?=?predicted_label
????correct_predictions?=?numpy.where（predictions?==?data_outputs）[0].size
????accuracy?=?（correct_predictions/data_outputs.size）*100
????return?accuracy?predictions
????
def?fitness（weights_mat?data_inputs?data_outputs?activation=“relu“）:
????accuracy?=?numpy.empty（shape=（weights_mat.shape[0]））
????for?sol_idx?in?range（weights_mat.shape[0]）:
????????curr_sol_mat?=?weights_mat[sol_idx?:]
????????accuracy[sol_idx]?_?=?predict_outputs（curr_sol_mat?data_inputs?data_outputs?activation=activation）
????return?accuracy

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

????.......??????1288??2020-06-02?04:42??Tutorial-Project\ANN.py

????.......???5650722??2020-06-02?04:42??Tutorial-Project\dataset_features.pkl

?????文件???????3965??2020-07-31?09:33??Tutorial-Project\Example_GA_ANN.py

????.......??????3230??2020-06-02?04:42??Tutorial-Project\ga.py

????.......?????15855??2020-06-02?04:42??Tutorial-Project\outputs.pkl

????.......??????4419??2020-06-02?04:42??Tutorial-Project\README.md

?????文件????1571751??2020-08-01?09:06??Tutorial-Project\weights_20_iterations_10%_mutation.pkl

?????文件??????????0??2020-07-31?09:25??Tutorial-Project\__init__.py

?????文件???????1339??2020-07-31?09:33??Tutorial-Project\__pycache__\ANN.cpython-37.pyc

?????文件???????2123??2020-07-31?09:33??Tutorial-Project\__pycache__\ga.cpython-37.pyc

?????目錄??????????0??2020-07-31?09:33??Tutorial-Project\__pycache__

?????目錄??????????0??2020-07-31?09:35??Tutorial-Project

-----------?---------??----------?-----??----

??????????????7254692????????????????????12