Convolutional Neural Networks Architecture Quiz
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Questions and Answers

How many convolution layers are there in total in the VGG16 network model?

  • 11
  • 15
  • 17
  • 13 (correct)
  • What is the key feature of the Squeeze-and-Excitation (SE) module?

  • Adopts common pooling and fully connected layers internally (correct)
  • It has zero pooling layers
  • It focuses on image downsampling
  • It only uses convolutional layers
  • What is the purpose of stacking multiple identical convolutions in the convolutional blocks?

  • To extract more complex features (correct)
  • To reduce the number of features extracted
  • To lower the accuracy of feature extraction
  • To simplify the network structure
  • How many convolution layers make up the first two convolution blocks in the VGG16 model?

    <p>Two</p> Signup and view all the answers

    What operation is part of the Squeeze-and-Excitation (SE) module to emphasize important features?

    <p>Squeeze operation</p> Signup and view all the answers

    How does the structure of VGG16 deepen the network's depth?

    <p>Through the repeated stacking of convolutional blocks</p> Signup and view all the answers

    What is the main focus of the research mentioned in the text?

    <p>Improving breast cancer histopathology image classification</p> Signup and view all the answers

    How does the method in the research save time during classification?

    <p>By organizing instance images into packages with labels</p> Signup and view all the answers

    What is the classification accuracy achieved by the method described in the text?

    <p>Between 83% and 87%</p> Signup and view all the answers

    What is the primary purpose of using VGG16 in the research?

    <p>To classify benign and malignant breast cancer pathology images</p> Signup and view all the answers

    Which section of the article discusses the experiments and their results?

    <p>Section III</p> Signup and view all the answers

    What is the structure of the VGG16 network mentioned in the text?

    <p>Five convolution blocks</p> Signup and view all the answers

    Which model proposed in the paper showed better performance compared to ResNet, SE-ResNet, DenseNet, and the original VGG16 model?

    <p>SE-VGG16</p> Signup and view all the answers

    What was the recognition rate achieved by the SE-VGG16 model on the breast cancer histopathology image dataset BreakHis for the benign-malignant dichotomous classification task of breast tumors?

    <p>98.41%</p> Signup and view all the answers

    How much percentage point improvement did the SE-VGG16 model achieve over the single VGG16 model in recognizing breast cancer histopathology images as benign-malignant?

    <p>5.68</p> Signup and view all the answers

    What learning rate was used to train ResNet, SE-ResNet, DenseNet, VGG16, and the improved VGG16 proposed in this paper?

    <p>0.01</p> Signup and view all the answers

    Which model had lower recognition accuracy compared to the algorithms discussed in this paper?

    <p>VGG16</p> Signup and view all the answers

    How many epochs were used to train ResNet, SE-ResNet, DenseNet, VGG16, and the improved VGG16 proposed in this paper?

    <p>500</p> Signup and view all the answers

    Study Notes

    Comparison Results

    • ResNet, SE-ResNet, DenseNet, and VGG16 have lower recognition accuracy than the algorithms in this paper
    • Comparison of recognition rates:
    • ResNet: 81.6%
    • SE-ResNet: 89.26%
    • DenseNet: 91.67%
    • VGG16: 92.73%

    Training and Models

    • Training parameters:
    • Learning rate: 0.01
    • Number: 2
    • Epochs: 500
    • Batch size: 64
    • The improved VGG16 model proposed in this paper outperforms ResNet, SE-ResNet, DenseNet, and the original VGG16 model

    SE-VGG16 Model

    • The SE-VGG16 model has a higher recognition rate of 98.41% on the breast cancer histopathology image dataset BreakHis
    • Improvement of 16.8, 9.15, and 5.68 percentage points over the single ResNet, DenseNet, and VGG16 models, respectively

    Multi-Instance Learning

    • Multi-instance learning was introduced in breast cancer histopathology image classification
    • Organizing instance images into packages and combining CNNs with specific loss functions
    • Saving time required for instance labeling and achieving classification accuracies between 83% and 87%

    VGG Network

    • VGG16 network structure diagram shown in Fig. 1
    • The network can be divided into five convolution blocks
    • Each convolution block uses a convolution core of size 3
    • The stacking of multiple identical convolutions in the convolutional blocks can extract more complex features

    Improved VGG16 Model

    • The SE module (Squeeze-and-Excitation block) is added after the convolutional layer of the VGG network model
    • The SE module has strong generality and can be easily embedded into other common network models

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    Description

    Test your knowledge on the architecture of Convolutional Neural Networks. Understand the composition of convolution blocks and the number of convolution layers used in each block to extract features.

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