Book Image

Hands-On One-shot Learning with Python

By : Shruti Jadon, Ankush Garg
Book Image

Hands-On One-shot Learning with Python

By: Shruti Jadon, Ankush Garg

Overview of this book

One-shot learning has been an active field of research for scientists trying to develop a cognitive machine that mimics human learning. With this book, you'll explore key approaches to one-shot learning, such as metrics-based, model-based, and optimization-based techniques, all with the help of practical examples. Hands-On One-shot Learning with Python will guide you through the exploration and design of deep learning models that can obtain information about an object from one or just a few training samples. The book begins with an overview of deep learning and one-shot learning and then introduces you to the different methods you can use to achieve it, such as deep learning architectures and probabilistic models. Once you've got to grips with the core principles, you'll explore real-world examples and implementations of one-shot learning using PyTorch 1.x on datasets such as Omniglot and MiniImageNet. Finally, you'll explore generative modeling-based methods and discover the key considerations for building systems that exhibit human-level intelligence. By the end of this book, you'll be well-versed with the different one- and few-shot learning methods and be able to use them to build your own deep learning models.
Table of Contents (11 chapters)
1
Section 1: One-shot Learning Introduction
3
Section 2: Deep Learning Architectures
7
Section 3: Other Methods and Conclusion

Bayesian program learning

Bayesian Program Learning (BPL) proceeds in three steps:

  1. In the first step, which is a generative model, BPL learns new concepts by building them compositionally from parts (refer to iii) of the A side in the diagram of the Model section), subparts (refer to ii) of the A side in the following diagram), and their spatial relations (refer to iv) of the A side in the following diagram). For example, it can sample new types of concepts (or, in this case, handwritten characters) from parts and subparts and combine them in new ways.
  2. In the second step, the concepts sampled in the first step form another lower-level generative model to produce new examples as shown in the v) part of the A side.
  3. The final step renders raw character level images. Hence, BPL is a generative model for generative models. The pseudocode for this generative model is shown on the B...