[mulmen]

Snapshots don’t have to be at regular intervals and can be at whatever resolution you choose. You could snapshot as the first step of training then keep that snapshot for the life of the resulting model. Or you could use some other time travel methodology. Snapshots are only one of many options.

[nikhilsimha]

These are reconstruction of features / columns that don’t exist yet.

[mulmen]

I don’t understand what this means. How can something be reconstructed without first existing? Is this not just a caching exercise?