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Codeless Time Series Analysis with KNIME

Codeless Time Series Analysis with KNIME

By : KNIME AG , Corey Weisinger, Maarit Widmann, Daniele Tonini
4.8 (10)
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Codeless Time Series Analysis with KNIME

Codeless Time Series Analysis with KNIME

4.8 (10)
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)
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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

Equal spacing and time alignment

In this section, we explain what an equally spaced time series is and show you how to make time series equally spaced by time alignment. We will cover these topics in the following subsections:

  • Introducing the concept of equal spacing
  • Performing time alignment for equally spaced time series

Explaining the concept of equal spacing

An equally spaced time series has equal time intervals between the subsequent observations. For example, in daily data, equal spacing means that all days between the first day and the last day in the time series are present. This is often not the case in raw time series, where, for example, a holiday makes a gap in the daily sales data and a system breakdown impedes the sending of signals.

Important Note

The regular sampling intervals do not necessarily reflect regular intervals in terms of the physical time but can also be determined by, for example, trading days in stock market data.

Raw time...

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