Book Image

Codeless Time Series Analysis with KNIME

By : KNIME AG, Corey Weisinger, Maarit Widmann, Daniele Tonini
Book Image

Codeless Time Series Analysis with KNIME

By: KNIME AG, Corey Weisinger, Maarit Widmann, Daniele Tonini

Overview of this book

This book will take you on a practical journey, teaching you how to implement solutions for many use cases involving time series analysis techniques. This learning journey is organized in a crescendo of difficulty, starting from the easiest yet effective techniques applied to weather forecasting, then introducing ARIMA and its variations, moving on to machine learning for audio signal classification, training deep learning architectures to predict glucose levels and electrical energy demand, and ending with an approach to anomaly detection in IoT. There’s no time series analysis book without a solution for stock price predictions and you’ll find this use case at the end of the book, together with a few more demand prediction use cases that rely on the integration of KNIME Analytics Platform and other external tools. By the end of this time series book, you’ll have learned about popular time series analysis techniques and algorithms, KNIME Analytics Platform, its time series extension, and how to apply both to common use cases.
Table of Contents (20 chapters)
1
Part 1: Time Series Basics and KNIME Analytics Platform
7
Part 2: Building and Deploying a Forecasting Model
14
Part 3: Forecasting on Mixed Platforms

Summary

In this chapter, we explored how to use neural networks for time series prediction. We used a case study in healthcare: predicting future glucose levels.

Since this is a book on time series analysis and not on deep learning, we adopted a simple neural architecture: a fully connected feedforward neural network with two hidden layers. We used the past 36 values of glucose levels to predict the next six glucose values. Among the next six, we detected the maximum and minimum values and triggered an alarm if one of them exceeded the recommended boundaries.

Before showing the implementation of the neural network in KNIME Analytics Platform, we recapped the basics of neural networks and their original training algorithm: backpropagation.

Then, we looked at how to install and configure KNIME Deep Learning – Keras Integration, which allows us to use the Keras deep learning libraries from the familiar KNIME interface.

Then, we continued with the practical implementation...