elaborate Splits

[VladimirAlexiev]

Data Splits (train/validation/test) are important in ML.
It seems to me that Splits are under-specified in OML:

• oml:EstimationProcedure "It defines how models should be evaluated, typically by defining specific kinds of train- and test splits."
  • has prop oml:dataSplitsURL
• oml:dataSplitsURL owl:ObjectProperty, no useful description ("data splits URL")
• oml:Split, no description
  • has prop oml:isAppliedTo -> dcat:Distribution
• oml:isAppliedTo: no description

Suggestions:

• Split should have a type (train/validation/test)
• dataSplitsURL should be renamed to split and point to Split