Transfer-station tickets were only recorded on weekday mornings, so…

Question

Transfer-station tickets were only recorded on weekday mornings, so weekend commercial haulers never appear. Which pre-training bias is that?

Accepted Answer

Selection bias in how rows were collected, not a training-instance size problem. — Think of tickets recorded only on weekday mornings, so weekend commercial haulers never appear. That is selection bias in how rows were collected. It is not a bigger GPU, and it is not the same as a 2 percent label count.

Answer

A need for a larger training instance, because missing weekends are a GPU count.

Answer

Class imbalance only, because a collection gap is the same as a 2 percent label.

Answer

Amazon Data Firehose, because a delivery stream is a collection process.

Transfer-station tickets were only recorded on weekday mornings, so weekend commercial haulers never appear. Which pre-training bias is that?

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