Last time, we discussed Shapley values and how they are defined, mathematically. This time, let's turn our attention to how to use them.1
We discussed how explainable artificial intelligence (XAI) is focused around taking models which have high predictive power (high variance, or high VC models) and providing an …
A common concern in machine learning (ML) solutions is that apparent predictive power is coming from a problematic source.1 For example, a model might learn to predict burrito quality from latitude and longitude. In this case, the actual signal is likely coming from a particular city or neighborhood having …
To help models generalize, it's common to use some form of data augmentation. This is where the original training data are modified in some way that preserves their semantics while changing their values. The model is fitted to the original training data, plus one or more augmented versions of it …
At Novi Labs, we spend a lot of time working with timeseries data. Generically speaking, these data are formatted something like this:
id time value
---------------
a 0 1
a 1 2
a 2 3
b 0 4
b 1 5
c 0 6
where we have individual sensors represented by …