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

Connecting to the Spark platform and preparing the data

In this section, we'll show you how to start the Spark application in KNIME by connecting to the cluster and loading data into it. We'll also introduce you to the Spark nodes, which you'll need in the prediction task in the next section. We'll cover these topics in the following subsections:

  • Introducing the Hadoop ecosystem
  • Accessing the data and loading it into Spark
  • Introducing the Spark compatible nodes

In the first subsection, we explain what the Hadoop ecosystem is and show how to access it from a KNIME workflow.

Introducing the Hadoop ecosystem

The Apache Hadoop ecosystem is an open source software framework that combines several computers into a computing cluster within which the processing tasks are split into smaller pieces and executed parallelly. Figure 12.1 illustrates the Hadoop framework:

Figure 12.1 – Illustrating the Hadoop software...