Book Image

Time Series Analysis on AWS

By : Michaël Hoarau
Book Image

Time Series Analysis on AWS

By: Michaël Hoarau

Overview of this book

Being a business analyst and data scientist, you have to use many algorithms and approaches to prepare, process, and build ML-based applications by leveraging time series data, but you face common problems, such as not knowing which algorithm to choose or how to combine and interpret them. Amazon Web Services (AWS) provides numerous services to help you build applications fueled by artificial intelligence (AI) capabilities. This book helps you get to grips with three AWS AI/ML-managed services to enable you to deliver your desired business outcomes. The book begins with Amazon Forecast, where you’ll discover how to use time series forecasting, leveraging sophisticated statistical and machine learning algorithms to deliver business outcomes accurately. You’ll then learn to use Amazon Lookout for Equipment to build multivariate time series anomaly detection models geared toward industrial equipment and understand how it provides valuable insights to reinforce teams focused on predictive maintenance and predictive quality use cases. In the last chapters, you’ll explore Amazon Lookout for Metrics, and automatically detect and diagnose outliers in your business and operational data. By the end of this AWS book, you’ll have understood how to use the three AWS AI services effectively to perform time series analysis.
Table of Contents (20 chapters)
1
Section 1: Analyzing Time Series and Delivering Highly Accurate Forecasts with Amazon Forecast
9
Section 2: Detecting Abnormal Behavior in Multivariate Time Series with Amazon Lookout for Equipment
15
Section 3: Detecting Anomalies in Business Metrics with Amazon Lookout for Metrics

Including holiday and weather data

At the time of writing this book, Amazon Forecast includes two built-in datasets that are made available as engineered features that you can leverage as supplementary features: Holidays and the Weather index.

Enabling the Holidays feature

This supplementary feature includes a dataset of national holidays for 66 countries. You can enable this feature when you create a new predictor: on the predictor creation page, scroll down to the optional Supplementary features section and toggle on the Enable holidays button, as illustrated in the following screenshot:

Figure 5.12 – Enabling the Holidays supplementary feature

Once enabled, a drop-down list appears, to let you select the country for which you want to enable holidays. Note that you can only select one country: your whole dataset must pertain to this country. If you have several countries in your dataset and wish to take different holidays into account, you will...