Exercise

A simple novelty

You find novelty detection more useful than outlier detection, but want to make sure it works on the simple example you came up with before. This time you will use a sequence of thirty examples all with value 1.0 as a training set, and try to see if the example 10.0 is labeled as a novelty. You have access to pandas as pd, and the LocalOutlierFactor module as lof.

Instructions

100 XP

Create a pandas DataFrame containing thirty examples all equal to 1.0.
Initialize a local outlier factor novelty detector.
Fit the detector to the training data.
Output the novelty label of the datapoint 10.0, casted to a DataFrame.

Take Hint (-30 XP)