Time Series Forecasting using Deep Learning: Combining PyTorch, RNN, TCN, and Deep Neural Network Models to Provide Production-Ready Prediction Solutions

Length: 314 pages
Edition: 1
Language: English
Publisher: BPB Publications
Publication Date: 2021-10-15
ISBN-10: 9391392571
ISBN-13: 9789391392574
Sales Rank: #701337 (See Top 100 Books)

Explore the infinite possibilities offered by Artificial Intelligence and Neural Networks

Key Features

Covers numerous concepts, techniques, best practices and troubleshooting tips by community experts.
Includes practical demonstration of robust deep learning prediction models with exciting use-cases.
Covers the use of the most powerful research toolkit such as Python, PyTorch, and Neural Network Intelligence.

Description

This book is amid at teaching the readers how to apply the deep learning techniques to the time series forecasting challenges and how to build prediction models using PyTorch.
The readers will learn the fundamentals of PyTorch in the early stages of the book. Next, the time series forecasting is covered in greater depth after the programme has been developed. You will try to use machine learning to identify the patterns that can help us forecast the future results. It covers methodologies such as Recurrent Neural Network, Encoder-decoder model, and Temporal Convolutional Network, all of which are state-of-the-art neural network architectures. Furthermore, for good measure, we have also introduced the neural architecture search, which automates searching for an ideal neural network design for a certain task.

Finally by the end of the book, readers would be able to solve complex real-world prediction issues by applying the models and strategies learnt throughout the course of the book. This book also offers another great way of mastering deep learning and its various techniques.

What you will learn

Work with the Encoder-Decoder concept and Temporal Convolutional Network mechanics.
Learn the basics of neural architecture search with Neural Network Intelligence.
Combine standard statistical analysis methods with deep learning approaches.
Automate the search for optimal predictive architecture.
Design your custom neural network architecture for specific tasks.
Apply predictive models to real-world problems of forecasting stock quotes, weather, and natural processes.

Who this book is for

This book is written for engineers, data scientists, and stock traders who want to build time series forecasting programs using deep learning. Possessing some familiarity of Python is sufficient, while a basic understanding of machine learning is desirable but not needed.

Cover Page
Title Page
Copyright Page
About the Author
About the Reviewer
Acknowledgement
Preface
Errata
Table of Contents
1. Time Series Problems and Challenges
    Structure
    Objectives
    Introduction to time series analysis and time series forecasting
        Time series analysis
        Time series forecasting
    Time series characteristics
        Random walk
            Import part
            Random walk generation
        Trend
            Import part
            Import part
            Result
        Seasonality
            Import part
            Result
        Stationarity
    Time series common problems
        Forecasting
        Modelling
        Anomaly detection
    Classical approaches
        Autoregressive model (AR)
        Autoregressive integrated moving average model
            Result
        Seasonal autoregressive integrated moving average
            Result
        Holt Winter’s exponential smoothing
            Result
        Classical approaches: Pros and cons
    Promise of Deep Learning
    Python for time series analysis
        Pandas
        Numpy
        Matplotlib
        Statmodels
        Scikit-learn
        PyTorch
    Conclusion
    Points to remember
    Multiple choice questions
        Answers
    Key terms
2. Deep Learning with PyTorch
    Structure
    Objectives
    Setting up PyTorch
    PyTorch as derivative calculator
        Function creation
        Computing function value
            Result
        Import part
        Create computational graph
            Result
            Result
            Result
            PyTorch basics
                Tensors
                Tensor creation
                Random tensor
                Reproducibility
                Common tensor types
                Tensor methods and attributes
                Math functions
            Deep Learning layers
                Linear layer
                    Result
                Convolution
                    Result
                Kernel
                Weight
                Padding
                    Result
                Stride
                    Result
                Pooling
                    Result
                Dropout
                    Result
                Activations
                ReLU
                    Result
                Sigmoid
                    Result
                Tanh
            Neural network architecture
            Result
            Result
        Improving neural network performance
        Do not put two same layers in a row
        Prefer ReLU activation at first
        Start from fully connected network
        More layers are better than more neurons
        Use dropout
        Put Deep Learning blocks in the beginning
    Training
        Loss functions
            Absolute loss
            Mean squared error
            Smooth L1 loss
        Optimizers
            Adagrad
            Adadelta
            Adam
            Stochastic Gradient Descent (SGD)
            Time series forecasting example
            Result
        Import part
        Train, validation and test datasets
        Import part
    Conclusion
    Points to remember
    Multiple choice questions
        Answers
    Key terms
3. Time Series as Deep Learning Problem
    Structure
    Objectives
    Problem statement
    Regression versus classification
        Time series regression problems
        Time series classification problems
    Univariate versus multivariate
        Univariate input - univariate output
        Multivariate input – univariate output
        Multivariate input – multivariate output
            Many-to-many
            Many-to-one
    Single-step versus multi-step
        Single-step
        Multi-step
            Single multi-step model
            Multiple single-step model
            Recurrent single-step model
    Datasets
    Feature engineering
    Time series pre-processing and post-processing
        Normalization
            Result
        Trend removal
            Result
        Differencing
            Result
    Sliding window
        Result
    Effectiveness and loss function
    Static versus dynamic
    Architecture design
    Training, validating and testing
    Alternative model
    Model optimization
    Summary
    Example: UK minimal temperature prediction problem
        Dataset
            Result
            Result
        Architecture
        Alternative model
        Testing
            Import part
            Making script reproducible
            Number of features
            Preparing datasets
            Initializing models
            Loss function and optimization algorithm
            Training process
            Evaluation on test set
            Getting results
    Conclusion
    Points to remember
    Multiple choice questions
        Answers
    Key terms
4. Recurrent Neural Networks
    Structure
    Recurrent neural network
        Result
        Import part
        Making this script reproducible
        Parameters
        Preparing datasets for training
        Initializing the model
        Training
        Evaluation
        Performance on test dataset
        Training progress
    Gated recurrent unit
        Result
        Import part
        Making this script reproducible
        Parameters
        Preparing datasets for training
        Initializing the model
        Training
        Evaluation
        Performance on test dataset
        Training progress
    Long short-term memory
        Result
        Import part
        Making this script reproducible
        Parameters
        Preparing datasets for training
        Initializing the model
        Training
        Evaluation
        Performance on test dataset
        Training progress
    Conclusion
    Points to remember
    Multiple choice questions
        Answers
    Key terms
5. Advanced Forecasting Models
    Structure
    Objectives
    Encoder–decoder model
        Encoder–decoder training
            Recursive
            Teacher forcing
            Mixed teacher forcing
        Implementing the encoder–decoder model
            Import part
            Encoder layer
            Decoder layer
        Encoder–decoder model class
        Training
        Model evaluation
            Example
            Result
        Import part
        Making script reproducible
        Global parameters
        Generating datasets
        Initializing Encoder–decoder model
        Training
        Prediction
        Visualizing results
    Temporal convolutional network
        Casual convolution
        Dilation
        Temporal convolutional network design
        Implementing the temporal convolutional network
            Import part
            Crop layer
            Temporal casual layer
            Implementing temporal convolutional network
        TCN prediction model
            Example
            Import part
            Making script reproducible
            Global parameters
            Generating time series
            Preprocessing
            Preparing datasets
            Initializing the model
            Defining optimizer and loss function
            Training
            Training progress
            Performance on the test dataset
    Conclusion
    Points to remember
    Multiple choice questions
        Answer
    Key terms
6. PyTorch Model Tuning with Neural Network Intelligence
    Structure
    Objective
    Neural Network Intelligence framework
    Hyper-parameter tuning
        Search space
        Trial
        Tuner
        Hyper-parameter tuning in action
        NNI Quick Start
            Import part
            Defining search space
            Search configuration
        NNI API
            NNI search space
            NNI Trial Integration
        Time series model hyper-parameter tuning example
        Deep Learning model trial
            Import part
            Global parameters
            Dataset, optimizer, and model initialization
        NNI search
            Import part
            Search space
            Maximum number of trials
            Search configuration
    Neural Architecture Search
    Hybrid models
        Result
        Implementing hybrid model
        Import part
        Casual convolution layer
            Hybrid model
            Optional casual convolution layer
            Obligatory RNN layer
            Optional fully connected layer
            Hybrid model
            Hybrid model trial
            Hybrid model search space
            Hybrid model architecture search
    Conclusion
    Points to remember
    Multiple choice questions
        Answers
    Key terms
7. Applying Deep Learning to Real-world Forecasting Problems
    Structure
    Objectives
    Rain prediction
        Result
        Import part
        Model preparation function
        Global parameters
        Model hyper-parameters
        Locations and features to train on
        Sliding window dataset
        Train-validation split
        Converting all datasets to tensors:
        Initializing the model
        Optimizer
        Loss function
        Training
        Import part
        Global parameters
        Preparing datasets
        Initializing the model
        Loading the trained model
        Making the predictions
        Alternative predictions
        Computing scores
        Printing the results
    COVID-19 confirmed cases forecast
        Import part
        Model preparation function
        Global parameters
        Model hyper-parameters
        Preparing sliding window datasets
        Creating train/validation datasets
        Converting datasets to tensors
        Initializing the model
        Training and getting the results
        Import part
        Global parameters
        Creating the input
        Initializing the model
        Making the prediction
        Plotting the prediction
            Result
    Algorithmic trading
        Result
        Result
        Result
        Result
        Import part
        Model preparation function
        Global parameters
        Model hyper-parameters
        Preparing sliding window dataset
        Creating train and validation datasets
        Preparing tensors
        Model initializing
        Training
        Import part
        Best hyper-parameters
        Global parameters
        Sliding window dataset
        Creating tensors
        Initializing and loading the model
        Evaluating
            Result
    Conclusion
    Points to remember
    Multiple choice questions
        Answers
8. PyTorch Forecasting Package
    Structure
    Introduction to PyTorch Forecasting package
    Working with TimeSeriesDataset
        Import part
        Creating TimeSeriesDataSet
        Working with TimeSeriesDataSet object
    Initializing built-in PyTorch Forecasting model
        Import part
        Making script reproducible
    Initializing Deep Autoregressive model
    Creating custom PyTorch Forecasting model
        Import part
        Defining PyTorch Forecasting model
        Implementing the forward method
        Initializing the custom model
    A complete example
        Result
    Conclusion
    Points to remember
    Multiple choice questions
        Answers
9. What is Next?
    Structure
    Objective
    Classical time series analysis
    Deep learning
    Studying the best solutions
    Do not be afraid of science
    Expanding your toolbox
    Conclusion
Index

Computers & Technology
- Computer Science

AI & Machine Learning Intelligence & Semantics Neural Networks

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