Feature-based time series analysis


26 November 2018




Presentation to the Monash international workshop on time series and panel data

It is becoming increasingly common for organizations to collect very large amounts of data over time. Data visualization is essential for exploring and understanding structures and patterns, and to identify unusual observations. However, the sheer quantity of data available means that new time series visualisation methods are needed. I will demonstrate an approach to this problem using a vector of features on each time series, measuring characteristics of the series. These feature vectors can then be mapped to a 2-dimensional space for visualization. The feature-based approach to time series can also be used to identify the best forecasting model using a pre-trained classifier, and to identify anomalous time series within a collection of time series.

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