# Official pre-trained models / external data thread

**URL:** <https://community.drivendata.org/t/official-pre-trained-models-external-data-thread/4003>\
**Category:** Segmenting Buildings for Disaster Resilience\
**Created:** [December 18, 2019, 3:55pm UTC](https://community.drivendata.org/t/official-pre-trained-models-external-data-thread/4003 "2019-12-18T15:55:20Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![daveluo\_gfdrr](https://avatars.discourse-cdn.com/v4/letter/d/858c86/32.png) [@daveluo\_gfdrr](https://community.drivendata.org/u/daveluo_gfdrr)\
**Post date:** [January 19, 2020, 10:24pm UTC](https://community.drivendata.org/t/official-pre-trained-models-external-data-thread/4003/7 "2020-01-19T22:24:51Z")

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Hi @Hasan_N,

Welcome to the challenge and thank you for checking about using the xView2 dataset.

Unfortunately, that dataset can’t be used here. xView2 data is licensed as Creative Commons Attribution-Noncommercial-Sharealike 4.0 International (CC BY-NC-SA 4.0) and the NonCommercial-Sharealike part potentially limits the open sourcing of solutions developed in this challenge.

Dave

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