Applied Autoencoders for Feature Extraction
Chapter 1: Revisiting Neural Networks and Dimensionality Reduction
Neural Network Components: A Quick Review
The Problem of High-Dimensional Data
Overview of Dimensionality Reduction Methods
Contrasting Linear and Non-linear Dimensionality Reduction
Feature Extraction's Role in ML Pipelines
Setting Up Your Deep Learning Environment
Hands-on: PCA for Dimensionality Reduction Practice
Quiz for Chapter 1
Chapter 2: Understanding Autoencoders: Core Concepts
Defining Autoencoders: The Basic Structure
The Encoder: Compressing Information
The Bottleneck Layer: Latent Space Representation
The Decoder: Reconstructing Original Data
Measuring Reconstruction Quality: Loss Functions
Undercomplete and Overcomplete Autoencoders
The Training Process for Autoencoders
How Autoencoders Discover Meaningful Features
Hands-on: Building a Basic Autoencoder
Quiz for Chapter 2
Chapter 3: Building Your First Autoencoder for Feature Extraction
Data Preparation for Autoencoder Training
Encoder Network Design Choices
Determining Latent Space Dimensionality
Decoder Network Design Strategies
Selecting Appropriate Loss Functions for Autoencoders
Optimizer Selection and Learning Rate Configuration
Monitoring Autoencoder Training Progress
Techniques for Extracting Features from the Bottleneck
Visualizing Latent Space (When Applicable)
Hands-on: Feature Extraction from Tabular Data
Quiz for Chapter 3
Chapter 4: Advanced Autoencoder Architectures
Sparse Autoencoders: Inducing Sparsity in Representations
Regularization Methods for Sparse Autoencoders
Denoising Autoencoders: Learning from Noisy Inputs
Implementing Denoising Autoencoders
Contractive Autoencoders: Principles and Regularization
Stacked Autoencoders: Building Deep Architectures
Layer-wise Training for Stacked Autoencoders
Hands-on: Implementing a Denoising Autoencoder
Quiz for Chapter 4
Chapter 5: Convolutional Autoencoders for Image Data
Why Fully-Connected Autoencoders Fall Short for Images
Convolutional Layers in Autoencoder Encoders
Using Pooling Layers for Spatial Down-sampling
Transposed Convolutional Layers in Decoders
Upsampling Techniques in Decoders
Constructing a Convolutional Autoencoder Model
Extracting Hierarchical Features with Conv Autoencoders
Hands-on: Convolutional Autoencoder for Image Features
Quiz for Chapter 5
Chapter 6: Variational Autoencoders (VAEs) for Structured Latent Spaces
Introduction to Generative Modeling with Autoencoders
Principles of Variational Autoencoders
The VAE Encoder: Outputting Distribution Parameters
The Reparameterization Trick Explained
The VAE Decoder: Generating Data from Latent Samples
The VAE Loss Function: Balancing Reconstruction and Regularization
Characteristics of the VAE Latent Space
Using VAE Latent Representations as Features
Hands-on: Building a VAE and Inspecting Its Latent Space
Quiz for Chapter 6
Chapter 7: Applying Autoencoder Features and Practical Guidance
Selecting an Appropriate Autoencoder Type
Tuning Hyperparameters for Optimal Performance
Methods for Evaluating Extracted Feature Quality
Integrating Autoencoder Features into Supervised Models
Application: Anomaly Detection with Autoencoder Features
Application: Data Compression using Autoencoders
Transfer Learning Approaches with Autoencoders
Addressing Common Implementation Challenges
Practice: Using Autoencoder Features in a Classification Task
Quiz for Chapter 7
Application: Data Compression using Autoencoders
Was this section helpful?
- Reducing the Dimensionality of Data with Neural Networks, Geoffrey E. Hinton, Ruslan R. Salakhutdinov, 2006 Science, Vol. 313 (American Association for the Advancement of Science) DOI: 10.1126/science.1127647 - This paper introduced deep autoencoders, demonstrating their ability to learn efficient, low-dimensional representations of high-dimensional data, which is fundamental to their use in data compression.
- Deep Learning, Ian Goodfellow, Yoshua Bengio, Aaron Courville, 2016 (MIT Press) - A foundational textbook providing a comprehensive overview of deep learning, including detailed explanations of autoencoders, their architecture, training, and applications in representation learning and dimensionality reduction, which are directly relevant to data compression.
- End-to-end Optimized Image Compression, Johannes Ballé, Valero Laparra, Eero P. Simoncelli, 2017 International Conference on Learning Representations (ICLR) DOI: 10.48550/arXiv.1611.01704 - This paper introduced a framework for end-to-end learned image compression using deep neural networks, demonstrating performance competitive with traditional codecs and establishing a key direction for autoencoder-based compression.
- Neural Network-Based Image Compression: A Review, Jingning Han, Dong Liu, 2021 APSIPA Transactions on Signal and Information Processing, Vol. 10 (SpringerOpen) DOI: 10.1186/s13634-021-00085-7 - This review provides a comprehensive overview of recent advancements in neural network-based image compression, offering context on autoencoder architectures and their performance compared to traditional methods.