Hi what is tye difference between batch size and windows per

Question

Hi what is tye difference between batch size and windows per batch size in TFT

Cristian (Nixtla) · Answer

Hi < Kaustav Chaudhury> In every training iteration the data loader samples `batch size` time series from the dataset Then the model samples `windows batch size` individual windows of size `input size` + `h` from the time series in the batch

Cristian (Nixtla) · Answer

Usually `windows batch size` is more important to tune since it ultimately determines the size of the batch for the model for gradient computation

Kaustav Chaudhury · Answer

So if I have window batch size of 128 per say it means it has 128 windows in each batch right

Cristian (Nixtla) · Answer

Yes