Posts

Testing an Outlier Detection Method

Suppose you have developed an outlier detection method. What are the ways to test it? You can generate some random data and add a …

Anomaly detection data repositories

In this post we will look at data repositories available for anomaly detection. So, can you use a standard classification dataset for …

Which nonlinear dimension reduction methods preserve outliers inside a sphere?

In this post we will look at how well nonlinear dimension reduction techniques preserve outliers that are placed inside a sphere, when …

Anomaly detection dilemmas

Finding anomalies/outliers in data is a task that is increasingly getting more attention mainly due to the variety of applications …

Tips for increasing your happiness during self-isolation

Teaching first year students made me realize how difficult it is for young people to stay at home all the time, specially during this …

Using dobin for time series data

The R package dobin can be used as a dimension reduction tool for outlier detection. So, if we have a dataset of \(N\) independent …