Testing machine learning systems…

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Today, everybody is talking about machine learning and AI. Some talk about deterministic models, some about statistical ones, some about bayesian, some talk about X-mas 🙂

My experience with working with machine learning is that we need to be very careful what we actually do. If we do the machine learning in the classical sense, e.g. neural network models or decision trees. Then we need to make sure that we test the system alongside the data. Never together with the data. We need to prepare a dataset that we use as a reference and which we know well.

Testing, in that scenario, becomes just like we know it. We can make calculations manually, or just step-by-step, and we can check if the algorithm behaves like this.

Testing the system is also not difficult if we follow principles of good engineering – separation of concerns, modularization, observability.

In the runtime, we need to make sure that we add mechanisms related to such aspects as out-of-bounds distributions and safety cages for ML algorithms.

Either way, I recommend this article for all ML designers and product managers who want to know what’s the state of the art in this field, from the perspective of testing. A good overview, nice reading!