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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 box plots

A box plot shows the distribution of a numeric column without assuming any parametric distribution of the data. A parametric method would be—for example—the z-score method, which calculates how far in the tails of a Gaussian distribution a data point appears. A box plot instead reports sample quantiles of the data and shows the variability of the data relative to the range between the first and third quartiles. It is also possible to report variability by groups using a conditional box plot.

In the following subsections, we will explain how you can use a box plot to visually explore time series data and how you can build a (conditional) box plot in KNIME.

Inspecting variability of data in a box plot

A box plot shows the first quartile (Q1), median (Q2), and third quartile (Q3) that make the box-plot body, and in addition, the whiskers that determine the range of normal variation. The upper whisker is calculated by adding to Q3 the length...

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