for test_batch_images, test_batch_labels in test_ds: test_batch_labels = test_batch_labels.numpy() test_batch_pres = model.predict(test_batch_images) test_batch_labels_max = np.argmax(test_batch_labels, axis=1) test_batch_pres_max = np.argmax(test_batch_pres, axis=1)

这段代码看起来是用于对测试数据集进行预测和评估的部分。首先，它使用一个循环来迭代测试数据集(test_ds)中的批量图像和标签。然后，使用model.predict()方法对测试批量图像进行预测。接下来，使用np.argmax()函数找到每个批量标签和预测结果中的最大值索引，以便进行后续的评估和比较。

相关问题

def test_mobilenet(): # todo 加载数据, 224*224的大小 模型一次训练16张图片 train_ds, test_ds, class_names = data_load(r"C:\Users\wjx\Desktop\项目\data\flower_photos_split\train", r"C:\Users\wjx\Desktop\项目\data\flower_photos_split\test", 224, 224, 16) # todo 加载模型 model = tf.keras.models.load_model("models/mobilenet_fv.h5") # model.summary() # 测试,evaluate的输出结果是验证集的损失值和准确率 loss, accuracy = model.evaluate(test_ds) # 输出结果 print('Mobilenet test accuracy :', accuracy) test_real_labels = [] test_pre_labels = [] for test_batch_images, test_batch_labels in test_ds: test_batch_labels = test_batch_labels.numpy() test_batch_pres = model.predict(test_batch_images) # print(test_batch_pres) test_batch_labels_max = np.argmax(test_batch_labels, axis=1) test_batch_pres_max = np.argmax(test_batch_pres, axis=1) # print(test_batch_labels_max) # print(test_batch_pres_max) # 将推理对应的标签取出 for i in test_batch_labels_max: test_real_labels.append(i) for i in test_batch_pres_max: test_pre_labels.append(i) # break # print(test_real_labels) # print(test_pre_labels) class_names_length = len(class_names) heat_maps = np.zeros((class_names_length, class_names_length)) for test_real_label, test_pre_label in zip(test_real_labels, test_pre_labels): heat_maps[test_real_label][test_pre_label] = heat_maps[test_real_label][test_pre_label] + 1 print(heat_maps) heat_maps_sum = np.sum(heat_maps, axis=1).reshape(-1, 1) # print(heat_maps_sum) print() heat_maps_float = heat_maps / heat_maps_sum print(heat_maps_float) # title, x_labels, y_labels, harvest show_heatmaps(title="heatmap", x_labels=class_names, y_labels=class_names, harvest=heat_maps_float, save_name="images/heatmap_mobilenet.png")

这段代码是用来测试 Mobilenet 模型在花卉数据集上的表现的。首先，使用 `data_load` 函数加载数据集，然后使用 `tf.keras.models.load_model` 函数加载预训练好的 Mobilenet 模型。接着，使用 `model.evaluate` 函数对测试集进行评估，得到测试集的损失值和准确率。然后，依次对测试集中的每一批数据进行预测，将真实标签和预测标签分别存储在两个列表中。最后，使用这两个列表生成混淆矩阵，并将混淆矩阵可视化为热力图。

修改一下这段代码在pycharm中的实现，import pandas as pd import numpy as np from sklearn.model_selection import train_test_split import torch import torch.nn as nn import torch.nn.functional as F import torch.optim as optim #from torchvision import datasets,transforms import torch.utils.data as data #from torch .nn:utils import weight_norm import matplotlib.pyplot as plt from sklearn.metrics import precision_score from sklearn.metrics import recall_score from sklearn.metrics import f1_score from sklearn.metrics import cohen_kappa_score data_ = pd.read_csv(open(r"C:\Users\zhangjinyue\Desktop\rice.csv"),header=None) data_ = np.array(data_).astype('float64') train_data =data_[:,:520] train_Data =np.array(train_data).astype('float64') train_labels=data_[:,520] train_labels=np.array(train_data).astype('float64') train_data,train_data,train_labels,train_labels=train_test_split(train_data,train_labels,test_size=0.33333) train_data=torch.Tensor(train_data) train_data=torch.LongTensor(train_labels) train_data=train_data.reshape(-1,1,20,26) train_data=torch.Tensor(train_data) train_data=torch.LongTensor(train_labels) train_data=train_data.reshape(-1,1,20,26) start_epoch=1 num_epoch=1 BATCH_SIZE=70 Ir=0.001 classes=('0','1','2','3','4','5') device=torch.device("cuda"if torch.cuda.is_available()else"cpu") torch.backends.cudnn.benchmark=True best_acc=0.0 train_dataset=data.TensorDataset(train_data,train_labels) test_dataset=data.TensorDataset(train_data,train_labels) train_loader=torch.utills.data.DataLoader(dtaset=train_dataset,batch_size=BATCH_SIZE,shuffle=True) test_loader=torch.utills.data.DataLoader(dtaset=train_dataset,batch_size=BATCH_SIZE,shuffle=True)

修改后的代码如下所示：

import pandas as pd
import numpy as np
from sklearn.model_selection import train_test_split
import torch
import torch.nn as nn
import torch.nn.functional as F
import torch.optim as optim
import torch.utils.data as data
import matplotlib.pyplot as plt
from sklearn.metrics import precision_score, recall_score, f1_score, cohen_kappa_score

data_ = pd.read_csv(r"C:\Users\zhangjinyue\Desktop\rice.csv", header=None)
data_ = np.array(data_).astype('float64')

train_data = data_[:, :520]
train_labels = data_[:, 520]
train_data, _, train_labels, _ = train_test_split(train_data, train_labels, test_size=0.33333)

train_data = torch.Tensor(train_data)
train_labels = torch.LongTensor(train_labels)
train_data = train_data.reshape(-1, 1, 20, 26)

start_epoch = 1
num_epoch = 1
BATCH_SIZE = 70
Ir = 0.001
classes = ('0', '1', '2', '3', '4', '5')
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
torch.backends.cudnn.benchmark = True
best_acc = 0.0

train_dataset = data.TensorDataset(train_data, train_labels)
test_dataset = data.TensorDataset(train_data, train_labels)

train_loader = torch.utils.data.DataLoader(dataset=train_dataset, batch_size=BATCH_SIZE, shuffle=True)
test_loader = torch.utils.data.DataLoader(dataset=train_dataset, batch_size=BATCH_SIZE, shuffle=True)

请注意，我做了以下修改：

1. 移除了不需要的导入语句。
2. 修复了变量名拼写错误。
3. 移除了重复的代码行。
4. 修正了 `torch.utils.data.DataLoader` 的拼写错误。
5. 修正了数据集分割时的变量名错误。

请根据你的实际需求进一步调整代码。