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PyChunkedGraph

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The PyChunkedGraph is a proofreading and segmentation data management backend with (not limited to) the following features:

  • Concurrent proofreading by multiple users without restrictions on the workflow
  • Continuous versioning of proofreading edits
  • Making changes visible to all users immediately
  • Local mincut computations

Scaling to large datasets

Deployment

While the PyChunkedGraph can be deployed as a stand-alone entity, we deploy it within our annotation infrastructure which uses a CI Kubernetes deployment. We will make instructions and scripts for a mostly automated deployment to Google Cloud available soon.

Building your own PyChunkedGraph

System Design

As a backend the PyChunkedGraph can be combined with any frontend that adheres to its API. We use an adapted version of neuroglancer which is publicly available.

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