When training a model interactively, I can use flow to look at intermediate progress which is quite nice. When running jobs automatically, I’d also like to do this by printing to stdout every now and then ( the table containing all sorts of stats in flow. E.g. with GBM or RF, after a couple of extra trees have been finished in Flow you can refresh the stats table and see cumulative gains. )
To be precise, the OUTPUT - SCORING HISTORY part in Flow.