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Data Labeling in Machine Learning with Python

Data Labeling in Machine Learning with Python

By : Vijaya Kumar Suda
5 (3)
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Data Labeling in Machine Learning with Python

Data Labeling in Machine Learning with Python

5 (3)
By: Vijaya Kumar Suda

Overview of this book

Data labeling is the invisible hand that guides the power of artificial intelligence and machine learning. In today’s data-driven world, mastering data labeling is not just an advantage, it’s a necessity. Data Labeling in Machine Learning with Python empowers you to unearth value from raw data, create intelligent systems, and influence the course of technological evolution. With this book, you'll discover the art of employing summary statistics, weak supervision, programmatic rules, and heuristics to assign labels to unlabeled training data programmatically. As you progress, you'll be able to enhance your datasets by mastering the intricacies of semi-supervised learning and data augmentation. Venturing further into the data landscape, you'll immerse yourself in the annotation of image, video, and audio data, harnessing the power of Python libraries such as seaborn, matplotlib, cv2, librosa, openai, and langchain. With hands-on guidance and practical examples, you'll gain proficiency in annotating diverse data types effectively. By the end of this book, you’ll have the practical expertise to programmatically label diverse data types and enhance datasets, unlocking the full potential of your data.
Table of Contents (18 chapters)
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1
Part 1: Labeling Tabular Data
5
Part 2: Labeling Image Data
9
Part 3: Labeling Text, Audio, and Video Data

Visualizing video data using Matplotlib

Let’s see the visualization examples for exploring and analyzing video data. We will generate some sample data and demonstrate different visualizations using the Matplotlib library in Python. We’ll import libraries first. Then we’ll generate some sample data. frame_indices represents the frame indices and frame_intensities represents the intensity values for each frame:

import matplotlib.pyplot as plt
import numpy as np
# Generate sample data
frame_indices = np.arange(0, 100)
frame_intensities = np.random.randint(0, 255, size=100)

Frame visualization

We create a line plot to visualize the frame intensities over the frame indices. This helps us understand the variations in intensity across frames:

# Frame Visualization
plt.figure(figsize=(10, 6))
plt.title("Frame Visualization")
plt.xlabel("Frame Index")
plt.ylabel("Intensity")
plt.plot(frame_indices, frame_intensities)
plt.show()
...
Visually different images
CONTINUE READING
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Data Labeling in Machine Learning with Python
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