Anomaly Detection In Time Series

Basic scenarios and methods

Arun Jagota
6 min readOct 6, 2023

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A time series is a sequence of numbers over time. Such as daily closing prices of a certain stock, or daily high temperatures in a particular location.

Anomalies in time series are values that are highly inconsistent with those expected around at those time points.

Anomaly detection has numerous use cases. Below is a small (and biased) sample.

  • Identifying temperatures in a time series of historical data of daily high temperatures in a particular…

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Arun Jagota

PhD, Computer Science, neural nets. 14+ years in industry: data science algos developer. 24+ patents issued. 50 academic pubs. Blogs on ML/data science topics.