import pandas as pd from sklearn.preprocessing import MinMaxScaler from keras.models import Sequential from keras.layers import Dense, SimpleRNN from sklearn.metrics import mean_squared_error # 从Excel文件中读取数据 data = pd.read_excel('data.xlsx', sheet_name='Sheet1') # 数据归一化 scaler = MinMaxScaler(feature_range=(0, 1)) scaled_data = scaler.fit_transform(data) # 将数据划分为训练集和测试集 train_size = int(len(scaled_data) * 0.7) test_size = len(scaled_data) - train_size train_data, test_data = scaled_data[0:train_size, :], scaled_data[train_size:len(scaled_data), :] # 创建RNN模型 model = Sequential() model.add(SimpleRNN(units=64, input_shape=(1, 4), activation='relu')) model.add(Dense(units=1)) model.compile(loss='mean_squared_error', optimizer='adam') # 训练模型 model.fit(train_data[:, 0:3].reshape(-1, 1, 3), train_data[:, 3], epochs=100, batch_size=32) # 在测试集上进行预测 predicted = model.predict(test_data[:, 0:3].reshape(-1, 1, 3)) # 反归一化 predicted = scaler.inverse_transform(predicted) actual = scaler.inverse_transform(test_data[:, 3].reshape(-1, 1)) # 计算均方误差 mse = mean_squared_error(actual, predicted) print("均方误差：", mse)这个表格里的数据假有8列，向下传播最后一行是8个输出，这个里面的程序里面怎么改

keras中加入droupout技术.docx

from keras.layers import Dense, Dropout from keras.wrappers.scikit_learn import KerasClassifier from keras.constraints import maxnorm from keras.optimizers import SGD from sklearn.model_selection ...

lstm时间序列预测python.docx

from sklearn.preprocessing import MinMaxScaler scaler = MinMaxScaler(feature_range=(0, 1)) scaled_data = scaler.fit_transform(df) - **创建训练集和测试集**: 将数据分为训练集和测试集。 ...

import numpy as np import matplotlib.pyplot as plt import pandas as pd import math from keras.models import Sequential from keras.layers import Dense, Activation, Dropout, LSTM from sklearn.preprocessing import MinMaxScaler from sklearn.metrics import mean_squared_error from keras import optimizers import time引入哪些库及这些库的作用

1. numpy：用于科学计算的一个Python...11. sklearn.metrics.mean_squared_error：用于计算均方误差。 12. keras.optimizers：提供了各种优化器，如SGD、Adam等。 13. time：提供了包括时间操作、睡眠等功能的模块。

import tensorflow as tf import numpy as np import matplotlib.pyplot as plt import pandas as pd from sklearn.utils import shuffle from sklearn.preprocessing import scale df = pd.read_csv("C:\\boston.csv",header=0) ds = df.values from sklearn.datasets import load_boston boston = load_boston() X = boston.data y = boston.target from sklearn.model_selection import train_test_split X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42) from sklearn.preprocessing import StandardScaler scaler = StandardScaler() X_train = scaler.fit_transform(X_train) X_test = scaler.transform(X_test) from tensorflow.keras.models import Sequential from tensorflow.keras.layers import Dense model = Sequential([ Dense(64, activation='relu', input_shape=(X_train.shape[1],)), Dense(64, activation='relu'), Dense(64, activation='relu'), Dense(1) ]) model.compile(loss='mean_squared_error', optimizer='adam') history = model.fit(X_train, y_train, validation_split=0.1, epochs=100, batch_size=32) from sklearn.metrics import mean_squared_error y_pred = model.predict(x_test)mse = mean_squared_error(y_test, y_pred)print('MSE:’, mse) import matplotlib.pyplot as plt plt.plot(history.history['accuracy'], label='train') plt.plot(history.history['val_accuracy'], label='validation') plt.legend() plt.show()

from tensorflow.keras.models import Sequential from tensorflow.keras.layers import Dense model = Sequential([ Dense(64, activation='relu', input_shape=(X_train.shape[1],)), Dense(64, activation='...

import pandas as pd from sklearn.preprocessing import StandardScaler from sklearn.decomposition import PCA from sklearn.model_selection import train_test_split from keras.models import Sequential from keras.layers import Dense, Conv1D, MaxPooling1D, Flatten from sklearn.metrics import accuracy_score from sklearn.metrics import confusion_matrix, classification_report from sklearn.metrics import roc_auc_score from sklearn.utils.class_weight import compute_class_weight # 读取数据 data = pd.read_csv('database.csv') # 数据预处理 X = data.iloc[:, :-1].values y = data.iloc[:, -1].values scaler = StandardScaler() X = scaler.fit_transform(X) # 特征选择 pca = PCA(n_components=10) X = pca.fit_transform(X) # 划分训练集和测试集 X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42) class_weights = compute_class_weight(class_weight='balanced', classes=np.unique(y_train), y=y_train) # 构建CNN模型 model = Sequential() model.add(Conv1D(filters=64, kernel_size=3, activation='relu', input_shape=(10, 1))) model.add(MaxPooling1D(pool_size=2)) model.add(Flatten()) model.add(Dense(10, activation='relu')) model.add(Dense(1, activation='sigmoid')) model.compile(loss='binary_crossentropy', optimizer='adam', metrics=['accuracy']) # 训练模型 X_train = X_train.reshape((X_train.shape[0], X_train.shape[1], 1)) X_test = X_test.reshape((X_test.shape[0], X_test.shape[1], 1)) model.fit(X_train, y_train,class_weight=class_weights,epochs=100, batch_size=64, validation_data=(X_test, y_test)) # 预测结果 y_pred = model.predict(X_test) #检验值 accuracy = accuracy_score(y_test, y_pred) auc = roc_auc_score(y_test, y_pred) print(auc) print("Accuracy:", accuracy) print('Confusion Matrix:\n', confusion_matrix(y_test, y_pred)) print('Classification Report:\n', classification_report(y_test, y_pred))

模型使用了一个卷积层(Conv1D)和一个池化层(MaxPooling1D)，然后通过一个全连接层(Dense)输出最终结果。训练过程中使用了类别权重(class_weights)来平衡样本不均衡问题。最终输出了预测值的准确率(accuracy)、ROC...

#导入所需库 import numpy as np import pandas as pd from sklearn.preprocessing import LabelEncoder from keras.utils import to_categorical from keras.models import Sequential from keras.layers import Dense from sklearn.model_selection import KFold #读入数据 train_data = pd.read_csv('ProSeqs_Train.txt', delimiter=' ', header=None) test_data = pd.read_csv('ProSeqs_Test.txt', delimiter=' ', header=None) #预处理训练集数据 X = train_data.iloc[:, 2:].values y = train_data.iloc[:, 1].values le = LabelEncoder() y = le.fit_transform(y) y = to_categorical(y) #定义模型 model = Sequential() model.add(Dense(64, input_dim=X.shape[1], activation='relu')) model.add(Dense(32, activation='relu')) model.add(Dense(2, activation='softmax')) model.compile(loss='categorical_crossentropy', optimizer='adam', metrics=['accuracy']) #K折交叉验证训练模型 kf = KFold(n_splits=5, shuffle=True, random_state=42) fold_scores = [] for train_index, valid_index in kf.split(X): train_X, train_y = X[train_index], y[train_index] valid_X, valid_y = X[valid_index], y[valid_index] model.fit(train_X, train_y, validation_data=(valid_X, valid_y), epochs=50, batch_size=32, verbose=2) fold_scores.append(model.evaluate(valid_X, valid_y, verbose=0)[1]) print('KFold cross-validation accuracy: {:.2f}%'.format(np.mean(fold_scores) * 100)) #预处理测试集数据 test_X = test_data.iloc[:, 1:].values #预测测试集结果 preds = model.predict(test_X) preds = np.argmax(preds, axis=1) #保存预测结果至文件中 np.savetxt('preds.txt', preds, fmt='%d') #输出预测结果 print('Predictions:') print(preds)该蛋白质功能预测实验涉及分类模型的理论基础

这个蛋白质功能预测实验涉及分类模型的理论基础。具体来说，使用了深度学习中的神经网络模型，通过对蛋白质序列进行预处理和特征提取，将其表示为数值型的特征向量，然后将这些向量作为输入，训练出一个分类模型来对...

# -- coding: utf-8 -- """ @author: zhang'xin'ge """ # 导入必要的库和数据 import pandas as pd from sklearn.model_selection import train_test_split from sklearn.preprocessing import StandardScaler from keras.models import Sequential from keras.layers import LSTM, Dense data = pd.read_csv('D:/MATLAB/data_test/0713_电子版更新.csv') # 将数据集拆分为训练集和测试集，并进行特征缩放： X = data.drop(['体质类型'], axis=1).values y = data['体质类型'].values X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42) scaler = StandardScaler() X_train_scaled = scaler.fit_transform(X_train) X_test_scaled = scaler.transform(X_test) #使用LSTM算法训练一个分类模型 model = Sequential() model.add(LSTM(64, input_shape=(X_train_scaled.shape[1], 1))) model.add(Dense(32, activation='relu')) model.add(Dense(9, activation='softmax')) model.compile(loss='categorical_crossentropy', optimizer='adam', metrics=['accuracy']) # 将训练集和测试集转换为LSTM模型需要的输入格式： X_train_lstm = X_train_scaled.reshape((X_train_scaled.shape[0], X_train_scaled.shape[1], 1)) X_test_lstm = X_test_scaled.reshape((X_test_scaled.shape[0], X_test_scaled.shape[1], 1)) # 使用训练集对模型进行训练： model.fit(X_train_lstm, y_train, epochs=50, batch_size=32, validation_data=(X_test_lstm, y_test)) # 使用训练好的模型对测试集进行预测，并计算准确率： y_pred = model.predict_classes(X_test_lstm) accuracy = (y_pred == y_test).mean() print('Accuracy:', accuracy)

1. 导入必要的库和数据，其中包括pandas、sklearn和keras等库。数据集被存储在一个名为data的DataFrame对象中。 2. 通过删除目标列'体质类型'来获取特征数据X和目标数据y。 3. 使用train_test_split函数将数据集...

import pandas as pd data = pd.read_csv(C:\Users\Administrator\Desktop\pythonsjwj\weibo_senti_100k.csv') data = data.dropna(); data.shape data.head() import jieba data['data_cut'] = data['review'].apply(lambda x: list(jieba.cut(x))) data.head() with open('stopword.txt','r',encoding = 'utf-8') as f: stop = f.readlines() import re stop = [re.sub(' |\n|\ufeff','',r) for r in stop] data['data_after'] = [[i for i in s if i not in stop] for s in data['data_cut']] data.head() w = [] for i in data['data_after']: w.extend(i) num_data = pd.DataFrame(pd.Series(w).value_counts()) num_data['id'] = list(range(1,len(num_data)+1)) a = lambda x:list(num_data['id'][x]) data['vec'] = data['data_after'].apply(a) data.head() from wordcloud import WordCloud import matplotlib.pyplot as plt num_words = [''.join(i) for i in data['data_after']] num_words = ''.join(num_words) num_words= re.sub(' ','',num_words) num = pd.Series(jieba.lcut(num_words)).value_counts() wc_pic = WordCloud(background_color='white',font_path=r'C:\Windows\Fonts\simhei.ttf').fit_words(num) plt.figure(figsize=(10,10)) plt.imshow(wc_pic) plt.axis('off') plt.show() from sklearn.model_selection import train_test_split from keras.preprocessing import sequence maxlen = 128 vec_data = list(sequence.pad_sequences(data['vec'],maxlen=maxlen)) x,xt,y,yt = train_test_split(vec_data,data['label'],test_size = 0.2,random_state = 123) import numpy as np x = np.array(list(x)) y = np.array(list(y)) xt = np.array(list(xt)) yt = np.array(list(yt)) x=x[:2000,:] y=y[:2000] xt=xt[:500,:] yt=yt[:500] from sklearn.svm import SVC clf = SVC(C=1, kernel = 'linear') clf.fit(x,y) from sklearn.metrics import classification_report test_pre = clf.predict(xt) report = classification_report(yt,test_pre) print(report) from keras.optimizers import SGD, RMSprop, Adagrad from keras.utils import np_utils from keras.models import Sequential from keras.layers.core import Dense, Dropout, Activation from keras.layers.embeddings import Embedding from keras.layers.recurrent import LSTM, GRU model = Sequential() model.add(Embedding(len(num_data['id'])+1,256)) model.add(Dense(32, activation='sigmoid', input_dim=100)) model.add(LSTM(128)) model.add(Dense(1)) model.add(Activation('sigmoid')) model.summary() import matplotlib.pyplot as plt import matplotlib.image as mpimg from keras.utils import plot_model plot_model(model,to_file='Lstm2.png',show_shapes=True) ls = mpimg.imread('Lstm2.png') plt.imshow(ls) plt.axis('off') plt.show() model.compile(loss='binary_crossentropy',optimizer='Adam',metrics=["accuracy"]) model.fit(x,y,validation_data=(x,y),epochs=15)

from keras.models import Sequential from keras.layers.core import Dense, Dropout, Activation from keras.layers.embeddings import Embedding from keras.layers.recurrent import LSTM # 将数据集划分为训练...

import numpy as np import pandas as pd from sklearn.model_selection import train_test_split from keras.models import Sequential from keras.layers import Dense from pyswarm import pso import matplotlib.pyplot as plt from sklearn.preprocessing import StandardScaler from sklearn.metrics import mean_absolute_error from sklearn.metrics import mean_squared_error from sklearn.metrics import r2_score file = "zhong.xlsx" data = pd.read_excel(file) #reading file X=np.array(data.loc[:,'种植密度':'有效积温']) y=np.array(data.loc[:,'产量']) y.shape=(185,1) # 将数据集分为训练集和测试集 X_train, X_test, y_train, y_test = train_test_split(X,y, test_size=0.25, random_state=10) SC=StandardScaler() X_train=SC.fit_transform(X_train) X_test=SC.fit_transform(X_test) y_train=SC.fit_transform(y_train) y_test=SC.fit_transform(y_test) print("X_train.shape:", X_train.shape) print("X_test.shape:", X_test.shape) print("y_train.shape:", y_train.shape) print("y_test.shape:", y_test.shape) # 定义BP神经网络模型 def nn_model(X): model = Sequential() model.add(Dense(8, input_dim=X_train.shape[1], activation='relu')) model.add(Dense(12, activation='relu')) model.add(Dense(1)) model.compile(loss='mean_squared_error', optimizer='adam') return model # 定义适应度函数 def fitness_func(X): model = nn_model(X) model.fit(X_train, y_train, epochs=60, verbose=2) score = model.evaluate(X_test, y_test, verbose=2) print(score) # 定义变量的下限和上限 lb = [5, 5] ub = [30, 30] # 利用PySwarm库实现改进的粒子群算法来优化BP神经网络预测模型 result = pso(fitness_func, lb, ub) # 输出最优解和函数值 print('最优解:', result[0]) print('最小函数值:', result[1]) mpl.rcParams["font.family"] = "SimHei" mpl.rcParams["axes.unicode_minus"] = False # 绘制预测值和真实值对比图 model = nn_model(X) model.fit(X_train, y_train, epochs=60, verbose=2) y_pred = model.predict(X_test) y_true = SC.inverse_transform(y_test) y_pred=SC.inverse_transform(y_pred) plt.figure() plt.plot(y_true,"bo-",label = '真实值') plt.plot(y_pred,"ro-", label = '预测值') plt.title('神经网络预测展示') plt.xlabel('序号') plt.ylabel('产量') plt.legend(loc='upper right') plt.show() print("R2 = ",r2_score(y_test, y_pred)) # R2 # 绘制损失函数曲线图 model = nn_model(X) history = model.fit(X_train, y_train, epochs=60, validation_data=(X_test, y_test), verbose=2) plt.plot(history.history['loss'], label='train') plt.plot(history.history['val_loss'], label='test') plt.legend() plt.show() mae = mean_absolute_error(y_test, y_pred) print('MAE: %.3f' % mae) mse = mean_squared_error(y_test, y_pred) print('mse: %.3f' % mse)

例如，应该将import numpy as np import pandas as pd分开成两行导入。其次，在进行数据标准化时，你应该使用同一个StandardScaler对象对训练集和测试集进行转换，而不是分别创建两个不同的对象进行转换。应该...

import numpy as np import pandas as pd import tensorflow as tf from sklearn.preprocessing import LabelEncoder from sklearn.model_selection import train_test_split from sklearn.decomposition import PCA from tensorflow.keras.models import Sequential from tensorflow.keras.layers import Conv1D, MaxPooling1D, Flatten, Dense, Dropout, Activation from sklearn.metrics import auc, accuracy_score, f1_score, recall_score # 读入数据 data = pd.read_csv('company_data.csv') X = data.iloc[:, :-1].values y = data.iloc[:, -1].values # 利用LabelEncoder将标签进行编码 encoder = LabelEncoder() y = encoder.fit_transform(y) # 划分训练集和测试集 X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42) # 对特征进行PCA降维 pca = PCA(n_components=17) X_train = pca.fit_transform(X_train) X_test = pca.transform(X_test) # 对数据reshape为符合卷积层输入的格式 X_train = X_train.reshape(-1, 17, 1) X_test = X_test.reshape(-1, 17, 1) # 构建卷积神经网络模型 model = Sequential() model.add(Conv1D(filters=128, kernel_size=3, activation='relu', input_shape=(17, 1))) model.add(Conv1D(filters=128, kernel_size=4, activation='relu')) model.add(Conv1D(filters=128, kernel_size=5, activation='relu')) model.add(MaxPooling1D(pool_size=2)) model.add(Flatten()) model.add(Dense(units=64, activation='relu')) model.add(Dense(units=1, activation='sigmoid')) # 编译模型 model.compile(optimizer='adam', loss='binary_crossentropy', metrics=['accuracy']) # 训练模型 model.fit(X_train, y_train, batch_size=64, epochs=10, validation_data=(X_test, y_test), verbose=1) # 在测试集上评估模型 y_pred = model.predict(X_test) y_pred = np.round(y_pred).flatten() # 计算各项指标 auc_score = auc(y_test, y_pred) accuracy = accuracy_score(y_test, y_pred) f1score = f1_score(y_test, y_pred) recall = recall_score(y_test, y_pred) # 打印输出各项指标 print("AUC score:", auc_score) print("Accuracy:", accuracy) print("F1 score:", f1score) print("Recall:", recall) 这个代码有什么错误

1, 2, 3, 4, 5, 8, 7, 6, 9] [0, 1, 2, 3, 4, 5, 8, 7, 9, 6] [这段代码没有明显的语法错误，但是有一些潜在的问题： 1. 没有对数据进行标0, 1, 2, 3, 4, 5, 8, 9, 6, 7] 准化处理，可能会影响模型的性能。...

import pandas as pd import numpy as np from sklearn.preprocessing import LabelEncoder, OneHotEncoder from keras.models import Sequential from keras.layers import Dense from keras.callbacks import History import matplotlib.pyplot as plt # 读取数据集 data = pd.read_csv('data-04-zoo.csv', header=None) # 切分x和y x = data.iloc[:, :-1].values y = data.iloc[:, -1].values # 对y标签进行独热编码处理 label_encoder = LabelEncoder() y = label_encoder.fit_transform(y) onehot_encoder = OneHotEncoder(sparse=False) y = y.reshape(len(y), 1) y = onehot_encoder.fit_transform(y) # 搭建网络模型 model = Sequential() model.add(Dense(16, input_dim=16, activation='relu')) model.add(Dense(8, activation='relu')) model.add(Dense(7, activation='softmax')) # 模型配置 model.compile(loss='categorical_crossentropy', optimizer='adam', metrics=['accuracy']) # 训练模型 history = History() model.fit(x, y, epochs=200, batch_size=16, validation_split=0.2, callbacks=[history]) # 绘制训练集和验证集的损失曲线 plt.plot(history.history['loss']) plt.plot(history.history['val_loss']) plt.title('Model Loss') plt.xlabel('Epoch') plt.ylabel('Loss') plt.legend(['Train', 'Validation'], loc='upper left') plt.show() # 绘制训练集和验证集的准确率曲线 plt.plot(history.history['accuracy']) plt.plot(history.history['val_accuracy']) plt.title('Model Accuracy') plt.xlabel('Epoch') plt.ylabel('Accuracy') plt.legend(['Train', 'Validation'], loc='upper left') plt.show() # 保存模型 model.save('model1.h5')from google.protobuf.internal import builder as _builder ImportError: cannot import name 'builder' from 'google.protobuf.internal' (C:\ProgramData\anaconda3\envs\demo\lib\site-packages\google\protobuf\internal\init.py)

这段代码中出现了 ImportError: cannot import name 'builder' from 'google.protobuf.internal' (C:\ProgramData\anaconda3\envs\demo\lib\site-packages\google\protobuf\internal\__init__.py) 的错误，这可能是...

import numpy as np import pandas as pd import matplotlib.pyplot as plt from sklearn.preprocessing import MinMaxScaler from keras.models import Sequential from keras.layers import Dense, LSTM from sklearn.metrics import r2_score,median_absolute_error,mean_absolute_error # 读取数据 data = pd.read_csv(r'C:/Users/Ljimmy/Desktop/yyqc/peijian/销量数据rnn.csv') # 取出特征参数 X = data.iloc[:,2:].values # 数据归一化 scaler = MinMaxScaler(feature_range=(0, 1)) X[:, 0] = scaler.fit_transform(X[:, 0].reshape(-1, 1)).flatten() #X = scaler.fit_transform(X) #scaler.fit(X) #X = scaler.transform(X) # 划分训练集和测试集 train_size = int(len(X) * 0.8) test_size = len(X) - train_size train, test = X[0:train_size, :], X[train_size:len(X), :] # 转换为监督学习问题 def create_dataset(dataset, look_back=1): X, Y = [], [] for i in range(len(dataset) - look_back - 1): a = dataset[i:(i + look_back), :] X.append(a) Y.append(dataset[i + look_back, 0]) return np.array(X), np.array(Y) look_back = 12 X_train, Y_train = create_dataset(train, look_back) #Y_train = train[:, 2:] # 取第三列及以后的数据 X_test, Y_test = create_dataset(test, look_back) #Y_test = test[:, 2:] # 取第三列及以后的数据 # 转换为3D张量 X_train = np.reshape(X_train, (X_train.shape[0], X_train.shape[1], 1)) X_test = np.reshape(X_test, (X_test.shape[0], X_test.shape[1], 1)) # 构建LSTM模型 model = Sequential() model.add(LSTM(units=50, return_sequences=True, input_shape=(X_train.shape[1], 1))) model.add(LSTM(units=50)) model.add(Dense(units=1)) model.compile(loss='mean_squared_error', optimizer='adam') model.fit(X_train, Y_train, epochs=5, batch_size=32) #model.fit(X_train, Y_train.reshape(Y_train.shape[0], 1), epochs=10, batch_size=32) # 预测下一个月的销量 last_month_sales = data.tail(12).iloc[:,2:].values #last_month_sales = data.tail(1)[:,2:].values last_month_sales = scaler.transform(last_month_sales) last_month_sales = np.reshape(last_month_sales, (1, look_back, 1)) next_month_sales = model.predict(last_month_sales) next_month_sales = scaler.inverse_transform(next_month_sales) print('Next month sales: %.0f' % next_month_sales[0][0]) # 计算RMSE误差 rmse = np.sqrt(np.mean((next_month_sales - last_month_sales) ** 2)) print('Test RMSE: %.3f' % rmse)IndexError Traceback (most recent call last) Cell In[1], line 36 33 X_test, Y_test = create_dataset(test, look_back) 34 #Y_test = test[:, 2:] # 取第三列及以后的数据 35 # 转换为3D张量 ---> 36 X_train = np.reshape(X_train, (X_train.shape[0], X_train.shape[1], 1)) 37 X_test = np.reshape(X_test, (X_test.shape[0], X_test.shape[1], 1)) 38 # 构建LSTM模型 IndexError: tuple index out of range代码修改

from sklearn.preprocessing import MinMaxScaler from keras.models import Sequential from keras.layers import Dense, LSTM from sklearn.metrics import r2_score,median_absolute_error,mean_absolute_...

编写tensorflow2.0程序实现RNN网络完成对spa-eng.txt数聚集的文本分类

import pandas as pd from sklearn.model_selection import train_test_split from tensorflow.keras.preprocessing.text import Tokenizer from tensorflow.keras.preprocessing.sequence import pad_sequences # ...

对creditcard.csv使用Python中的TensorFlow进行深度学习建模。

import pandas as pd import tensorflow as tf from sklearn.model_selection import train_test_split data = pd.read_csv('creditcard.csv') 然后，我们需要对数据进行预处理。我们将使用标准化来缩放特征...

修正以下的代码data = pd.read_excel(r"D:\pythonProject60\filtered_data1.xlsx") X = data.iloc[:, :-1] y = data.iloc[:, -1] from scipy.interpolate import interp1d # 数据归一化 scaler = StandardScaler() # 将X,Y数据进行归一化 X = scaler.fit_transform(X) # 随机划分训练集和测试集 X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.3, train_size=0.7) X_fuzzy = [] for i in range(X.shape[1]): fuzzy_vals = fuzz.trimf(X[:,i], [np.min(X[:,i]), np.mean(X[:,i]), np.max(X[:,i])]) X_fuzzy.append(fuzzy_vals) X_fuzzy = np.array(X_fuzzy).T # 构建深度神经模糊网络 model = tf.keras.Sequential([ tf.keras.layers.Dense(64, activation='relu', input_dim=X_fuzzy.shape[1]), tf.keras.layers.Dense(32, activation='relu'), tf.keras.layers.Dense(1, activation='sigmoid') ]) model.compile(optimizer='adam', loss='binary_crossentropy', metrics=['accuracy']) model.fit(X_fuzzy, y, epochs=10, batch_size=32) # 训练随机森林分类器 rf_clf = RandomForestClassifier(n_estimators=100, max_depth=5) rf_clf.fit(model.predict(X_fuzzy), y) # 预测新数据点 new_data = np.random.rand(5) new_data_fuzzy = [] for i in range(new_data.shape[0]): fuzzy_val = fuzz.interp_membership(np.linspace(np.min(X[:,i]), np.max(X[:,i]), 100), fuzz.trimf(np.linspace(np.min(X[:,i]), np.max(X[:,i]), 100), [np.min(X[:,i]), np.mean(X[:,i]), np.max(X[:,i])]), new_data[i]) new_data_fuzzy.append(fuzzy_val) new_data_fuzzy = np.array(new_data_fuzzy).reshape(1,-1)

import pandas as pd import numpy as np from sklearn.preprocessing import StandardScaler from sklearn.model_selection import train_test_split from sklearn.ensemble import RandomForestClassifier import ...

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