Query on setting the focus token for crop type model

The information regarding the focus token shown in the presentation is not available in the sample notebook. Is there a way to specify the season for the model to look into. The date slider captures the whole year and if I want to run for the latest season (Jun - Oct 2024), I would be able to select date range between Nov 2023 and Oct 2024. How will i set the model to look for the latest season.

Great question! Currently, we don’t support direct specification of the focus token during inference yet. What happens during inference is that the center of a chosen 12-month time range is taken as focus token (see here). Therefore, currently the only way to drive focus is to choose the time range in such way that your target season is centered in it.

However, that currently wouldn’t solve your issue if you’re looking for seasons near the end of 2023 or in 2024. One of our required input collections (meteo) currently runs only till the end of 2023, which is why you cannot choose a time range including 2024.

We’re currently working on two fronts for this issue:

  • allowing a manual specification of the focus token, overriding the default center
  • expanding the meteo collection into 2024

Both should be available by our next release, Q1 2025.

On a side note regarding the focus token: during training, the what we call “validity time” of each individual training sample is used as the focus token. At best this is the observation date of the sample in the field, but often it’s a best estimate of the peak of season the sample belongs to.

Hope that helps!

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