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

Summary

Arriving at the end of this chapter, we have demonstrated how to expand a prediction model from a one-dimensional time series (univariate) to a multi-dimensional time series (multivariate). We expanded the input from the past values of a single time series to include the past values of all 30 time series in the energy consumption dataset and learned how to build a model predicting the next value in one of the selected time series.

We approached the problem in steps. First, we trained a fully connected feedforward neural network to predict the next value in one time series based on the past values of all time series. Then, we trained a fully connected feedforward neural network to predict the next values in all 30 time series based on the past values of all 30 time series in the energy consumption dataset.

Finally, we observed that the more complex the problem and the model, the higher the computational load, and the longer the execution times, especially during the training...