This question is only about the vocabulary.
Do / can you say
- data item
- data sample
- data point
- something else
when you talk about elements of the training / test set? For example:
The figure shows 100 data items of the training set.
Database A contains the same data items as database B, but in another format.
The remaining data items were removed from the dataset.
Those 10 classes have 123456 data items.
Please provide papers with examples.
According to Google n-grams: