Visualisation et interprétabilité

Tracer la progression de l’apprentissage, évaluer la précision, expliquer les prédictions et visualiser les caractéristiques apprises par un réseau

Surveillez la progression de l’apprentissage en utilisant des tracés prédéfinis des fonctions de précision et de perte du réseau. Analysez des réseaux entraînés avec des techniques de visualisation comme Grad-CAM, la sensibilité aux occlusions, LIME et DeepDream.

Méthodes de visualisation du Deep Learning

Flow chart showing methods used to visualize the predictions made by a trained network. The visualization methods can be used for verification, debugging, learning, detecting bias, and model selection.

Deep Learning Visualization Methods

Applications

Deep Network Designer

Concevoir et visualiser des réseaux de Deep Learning

Objets

trainingProgressMonitor Monitor and plot training progress for deep learning custom training loops (depuis R2022b)

Fonctions

développer tout

Réseau

`analyzeNetwork`	Analyze deep learning network architecture
`plot`	Plot neural network architecture

Progression de l'apprentissage

`updateInfo`	Update information values for custom training loops (depuis R2022b)
`recordMetrics`	Record metric values for custom training loops (depuis R2022b)
`groupSubPlot`	Group metrics in training plot (depuis R2022b)
`yscale`	Set training plot y-axis scale (linear or logarithmic) (depuis R2024a)

Métriques

`accuracyMetric`	Deep learning accuracy metric (depuis R2023b)
`aucMetric`	Deep learning area under ROC curve (AUC) metric (depuis R2023b)
`fScoreMetric`	Deep learning F-score metric (depuis R2023b)
`precisionMetric`	Deep learning precision metric (depuis R2023b)
`recallMetric`	Deep learning recall metric (depuis R2023b)
`rmseMetric`	Deep learning root mean squared error metric (depuis R2023b)

Prédiction

`predict`	Compute deep learning network output for inference (depuis R2019b)
`minibatchpredict`	Mini-batched neural network prediction (depuis R2024a)
`scores2label`	Convert prediction scores to labels (depuis R2024a)
`confusionchart`	Create confusion matrix chart for classification problem
`sortClasses`	Sort classes of confusion matrix chart
`rocmetrics`	Receiver operating characteristic (ROC) curve and performance metrics for binary and multiclass classifiers (depuis R2022b)
`addMetrics`	Compute additional classification performance metrics (depuis R2022b)
`average`	Compute performance metrics for average receiver operating characteristic (ROC) curve in multiclass problem (depuis R2022b)
`plot`	Plot receiver operating characteristic (ROC) curves and other performance curves (depuis R2022b)

Interprétabilité

`imageLIME`	Explain network predictions using LIME (depuis R2020b)
`occlusionSensitivity`	Explain network predictions by occluding the inputs (depuis R2019b)
`deepDreamImage`	Visualize network features using deep dream
`gradCAM`	Explain network predictions using Grad-CAM (depuis R2021a)
`drise`	Explain object detection network predictions using D-RISE (depuis R2024a)

Propriétés

ConfusionMatrixChart Properties	Confusion matrix chart appearance and behavior
ROCCurve Properties	Receiver operating characteristic (ROC) curve appearance and behavior (depuis R2022b)

Rubriques

Progression et performance de l’apprentissage

Surveiller la progression de l'apprentissage du Deep Learning
Cet exemple montre comment surveiller la progression de l’apprentissage des réseaux de Deep Learning.
Monitor Custom Training Loop Progress
Track and plot custom training loop progress.
Monitor GAN Training Progress and Identify Common Failure Modes
Learn how to diagnose and fix some of the most common failure modes in GAN training.
ROC Curve and Performance Metrics
Use rocmetrics to examine the performance of a classification algorithm on a test data set.
Compare Deep Learning Models Using ROC Curves
This example shows how to use receiver operating characteristic (ROC) curves to compare the performance of deep learning models.
Define Custom Metric Function
Define custom deep learning metrics using functions.
Define Custom Deep Learning Metric Object
Learn how to define custom deep learning metrics using custom classes.
Define Custom F-Beta Score Metric Object
This example shows how to define a generic F-beta score metric.

Interprétabilité

Explore Network Predictions Using Deep Learning Visualization Techniques
This example shows how to investigate network predictions using deep learning visualization techniques.
Understand Network Predictions Using Occlusion
This example shows how to use occlusion sensitivity maps to understand why a deep neural network makes a classification decision.
Interpret Deep Network Predictions on Tabular Data Using LIME
This example shows how to use the locally interpretable model-agnostic explanations (LIME) technique to understand the predictions of a deep neural network classifying tabular data.
Investigate Spectrogram Classifications Using LIME
This example shows how to use locally interpretable model-agnostic explanations (LIME) to investigate the robustness of a deep convolutional neural network trained to classify spectrograms.
Investigate Classification Decisions Using Gradient Attribution Techniques
This example shows how to use gradient attribution maps to investigate which parts of an image are most important for classification decisions made by a deep neural network.
Investigate Network Predictions Using Class Activation Mapping
This example shows how to use class activation mapping (CAM) to investigate and explain the predictions of a deep convolutional neural network for image classification.
Visualize Image Classifications Using Maximal and Minimal Activating Images
This example shows how to use a data set to find out what activates the channels of a deep neural network.
View Network Behavior Using tsne
This example shows how to use the tsne function to view activations in a trained network.
Visualize Activations of LSTM Network
This example shows how to investigate and visualize the features learned by LSTM networks by extracting the activations.
Visualize Activations of a Convolutional Neural Network
This example shows how to feed an image to a convolutional neural network and display the activations of different layers of the network.
Visualize Features of a Convolutional Neural Network
This example shows how to visualize the features learned by convolutional neural networks.
Deep Learning Visualization Methods
Learn about and compare deep learning visualization methods.

Exemples présentés

Detect Vanishing Gradients in Deep Neural Networks by Plotting Gradient Distributions

Monitor vanishing gradients while training a deep neural network.

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Grad-CAM Reveals the Why Behind Deep Learning Decisions

Use the gradient-weighted class activation mapping (Grad-CAM) technique to understand why a deep learning network makes its classification decisions. Grad-CAM, invented by Selvaraju and coauthors [1], uses the gradient of the classification score with respect to the convolutional features determined by the network in order to understand which parts of the image are most important for classification. This example uses the GoogLeNet pretrained network for images.

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Interpret Deep Learning Time-Series Classifications Using Grad-CAM

Use the gradient-weighted class activation mapping (Grad-CAM) technique to understand the classification decisions of a 1-D convolutional neural network trained on time-series data.

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Understand Network Predictions Using LIME

Use locally interpretable model-agnostic explanations (LIME) to understand why a deep neural network makes a classification decision.

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Explore Semantic Segmentation Network Using Grad-CAM

Explore the predictions of a pretrained semantic segmentation network using Grad-CAM.

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Investigate Audio Classifications Using Deep Learning Interpretability Techniques

Use interpretability techniques to investigate the predictions of a deep neural network trained to classify audio data.

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Deep Dream Images Using GoogLeNet

Generate images using deepDreamImage with the pretrained convolutional neural network GoogLeNet.

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Detect Issues During Deep Neural Network Training

Automatically detect issues while training a deep neural network.

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Explore Quantized Semantic Segmentation Network Using Grad-CAM

Compare the predictions of a quantized semantic segmentation network to the original network using the gradient-weighted class activation mapping (Grad-CAM) interpretability method.

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