...
/Biased Mislabeling in Image Classification Using CNNs
Biased Mislabeling in Image Classification Using CNNs
Explore how a biased mislabeled dataset affects the performance of a CNN model.
In this lesson, we’ll explore what happens when we introduce a small amount of biased mislabeling in the dataset. Our primary goal is to gain a comprehensive understanding of the performance degradation that can arise when dealing with low-quality data. To understand the effect, we’ll use the CNN model with two versions of the dataset—one with a clean dataset and the other with a mislabeled dataset. We’ll then compare the performance using accuracy matrices, which will help us gauge the impact of adding a small amount of biased mislabeling to our dataset.
Implementing biased mislabeling
To evaluate how a dataset’s quality affects a CNN model’s performance, we’ll follow a series of steps to compare the respective performance achieved using a clean and mislabeled dataset.
Step 1: Importing libraries
The following code imports the necessary libraries for implementing unbiased mislabeling:
# Import necessary librariesimport numpy as npfrom keras.datasets import mnistimport matplotlib.pyplot as pltfrom keras.models import Sequentialfrom keras.layers import Conv2D, MaxPooling2D, Flatten, Dense, Dropoutfrom sklearn.model_selection import train_test_splitfrom tensorflow.keras.optimizers import Adam
Step 2: Loading and creating a biased mislabeled dataset
The code provided below loads the MNIST digit dataset using the ...