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Think of a “slice” as a saved search. It’s a dynamic, saved collection of your data that you’ve grouped together using one or more filters. For example, you could create a slice of all images that have a “dog” label and were uploaded in the last week. Because slices are dynamic, they automatically update. Any new data you add to Labelbox that matches your saved filters will automatically appear in that slice.

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How to create a slice

  1. Start with a search: In the Catalog, use the filter options to narrow down your data. You can filter by metadata, annotations, dataset, and more.
  2. Save your search: Once you’re happy with your filtered results, click the Save slice button.
  3. Name your slice: Give your slice a descriptive name (between 3 and 30 characters) and add an optional description.
  4. Find your slice: Your newly created slice will now appear in the Slices list on the left-hand panel of the Catalog.
After you create a slice, the slice will show up in your list of Slices in the left side panel of Catalog.
LimitsSee this page to learn the limits for creating slices.

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Explore your slices

To explore a slice, go to the left side panel of the Catalog, click on Slices, and click on the slice name you want to explore. The filters associated with the slice will appear instantly. All data rows matching the filters will also appear, including data rows uploaded after the slice was created.
Once you are done exploring a slice, you can:
  • Click on a different slice name to explore a different slice.
  • Click on Datasets and a dataset name to explore a dataset.
  • Click on All datasets to explore your complete Catalog.

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Update a slice

Over time, you might need to adjust the filters associated with a slice. Upon navigating to a slice, you can modify, add, or delete attributes of the filters. To update a slice:
  1. Navigate to the slice you want to change.
  2. Modify, add, or delete filters as needed.
  3. Click Update slice. You’ll be prompted to select one of the following options.
    • Save the changes to the current slice to (update it with the newly configured filters).
    • Save as new a distinct slice with the newly configured filters.

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Other actions

When you select a slice, you can access its dedicated menu to:
  • Edit the slice (aka, change its name or description).
  • Copy the slice ID that you can use with the Python SDK (see link).
  • Export the slice (see Export data rows from Catalog).
  • Delete the slice. Be careful. This can’t be undone.