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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

Introducing lag plots

A lag plot is a scatter plot showing currently observed values on the y axis versus their lagged values on the x axis.

While the scatter plot is a bivariate analysis of two numeric variables, it is also possible to add color to the dots in a scatter plot to represent a third—numeric or nominal—variable. The most common lag plot shows the values at lag 1, which is also called a first-order lag plot.

In the following subsections, we will explain the insights and usage of a lag plot and see how to build a lag plot in KNIME.

Introducing insights derived from a lag plot

A lag plot shows the persistence of values at the selected lag: the more concentrated the data points on the diagonal of the scatter plot are, the stronger the autocorrelation at the selected lag. If the data points are concentrated above the diagonal, the lagged values are lower than the current value, and if they are concentrated below the diagonal, the lagged values are...

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