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

Streaming humidity data from an Arduino sensor

The first stage of the process when building an application on top of IoT data is gaining access to the sensors. This process will look quite a bit different depending on the sensor you’re connecting to and where it is located. Since our sensor is located on an Arduino board with Wi-Fi connectivity, we choose to send it over the internet via REST. Conveniently, any workflow loaded to the KNIME Server automatically has REST endpoints generated for it. We’ll get to those and how to find them shortly.

First, a bit more background about the Arduino; we’ll need this knowledge to design an appropriate workflow to accept its data.

What is an Arduino?

We’ve used the name a bit already but as we get into this section on setting up the Arduino board and retrieving our sensor data, it’s important we recap what exactly we’re working with. Arduino is an open source software and hardware company. They...