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

Chapter 3: Preparing Data for Time Series Analysis

In this chapter, we will introduce the common first steps in a time series analysis project. We will explore different sources of time series data and show you how to clean the raw data through equal spacing, missing value imputation, and time aggregation.

After preparing the data using these steps, we can proceed with visualization, descriptive analysis, and modeling of time series data.

Additionally, we will introduce preprocessing techniques in the upcoming sections:

  • Introducing different sources of time series data
  • Time granularity and time aggregation
  • Equal spacing and time alignment
  • Missing value imputation

You will learn about the common first steps of almost all time series applications. Also, you will learn about the different techniques used at each preprocessing step and gain an understanding of how to select the best approach for your data and application. Finally, you will also learn how...