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

Introducing seasonal plots

A seasonal plot is a line plot with a separate line for each seasonal cycle. For example, for data with daily seasonality, a seasonal plot can show daily seasonal cycles in parallel in different weeks, months, or years.

In the following subsections, we will introduce insights you can gain from a seasonal plot and show how you can build a seasonal plot in KNIME.

Comparing seasonal patterns in a seasonal plot

Since a seasonal plot compares different seasonal cycles that follow each other in the same time series, this visualization technique compares relationships within the time series.

In a seasonal plot, you can see the seasonality as a collection of similarly behaving lines over a single seasonal cycle. The x axis shows the progression of the seasonal cycle—for example, from hour 0 to hour 24—while the y axis shows aggregated values by units within the seasonal cycle.

The following screenshot shows an example seasonal plot with...