2. 神经网络的搭建以及迁移学习的测试 7.项目总结 通过本次水果图片卷积池化全连接试验分类项目的实践,我对卷积.池化.全连接等相关的理论的理解更加全面和清晰了.试验主要采用python高级编程语言的TensorFlow和Keras这两个库.在实验学习的过程中,开始时,对于TensorFlow和Keras并不是很了解,里面提供的许多方法也不熟悉,但经过老师课堂的讲解和演示一些关键的.和常用的方法或函数,以及对相关参数的传递.变化,如:权值的变化.图片尺寸的变化.图片通道的变化.偏置的设置.优化函…

import pandas as pd import numpy as np import matplotlib.pyplot as plt import matplotlib.image as mpimg import seaborn as sns %matplotlib inline np.random.seed(2) from sklearn.model_selection import train_test_split from sklearn.metrics import confus…

!mkdir '/content/gdrive/My Drive/conversation' ''' 将文本句子分解成单词,并构建词库 ''' path = '/content/gdrive/My Drive/conversation/' with open(path + 'question.txt', 'r') as fopen: text_question = fopen.read().lower().split('\n') with open(path + 'answer.txt', 'r…

import tensorflow as tf import numpy as np ''' 初始化运算图,它包含了上节提到的各个运算单元,它将为W,x,b,h构造运算部件,并将它们连接 起来 ''' graph = tf.Graph() #一次tensorflow代码的运行都要初始化一个session session = tf.InteractiveSession(graph=graph) ''' 我们定义三种变量,一种叫placeholder,它对应输入变量,也就是上节计算图所示的圆圈部分,…

!pip install gym import random import numpy as np import matplotlib.pyplot as plt from keras.layers import Dense, Dropout, Activation from keras.models import Sequential from keras.optimizers import Adam from keras import backend as K from collection…

from keras.layers import model = Sequential() model.add(embedding_layer) #使用一维卷积网络切割输入数据,参数5表示每各个单词作为切割小段 model.add(layers.Conv1D(32, 5, activation='relu')) #参数3表示,上层传下来的数据中,从每3个数值中抽取最大值 model.add(layers.MaxPooling1D(3)) #添加一个有记忆性的GRU层,其原理与LSTM相同,运行速…

from keras.layers import LSTM model = Sequential() model.add(embedding_layer) model.add(LSTM(32)) #当结果是输出多个分类的概率时,用softmax激活函数,它将为30个分类提供不同的可能性概率值 model.add(layers.Dense(len(int_category), activation='softmax')) #对于输出多个分类结果,最好的损失函数是categorical_crosse…

from numpy import * def img2vector(filename): returnVect = zeros((1,1024)) fr = open(filename) for i in range(32): lineStr = fr.readline() for j in range(32): returnVect[0,32*i+j] = int(lineStr[j]) return returnVect def loadImages(dirName): from os i…

#We import libraries for linear algebra, graphs, and evaluation of results import numpy as np import matplotlib.pyplot as plt from sklearn.linear_model import LinearRegression from sklearn.preprocessing import StandardScaler from sklearn.metrics impo…

原因:因为是tensorflow 2.0版本…