[3dem] CAHRA Challenge - participation survey and preliminary submission deadline
Joel Greer - STFC UKRI
Joel.Greer at stfc.ac.uk
Mon Mar 9 05:55:51 PDT 2026
Dear all,
CAHRA Challenge Deadlines:
A reminder that the deadline for (optional) preliminary submissions to the CAHRA Challenge is March 14th. The deadline for final entries is June 1st. Preliminary submissions will be ranked against each other in a leaderboard on the CAHRA Challenge website: https://urldefense.com/v3/__https://heterogeneity.notion.site/challenge__;!!Mih3wA!AY82rb7euKu2Nv8f4Bd2bRdNlHQrqu5Ed1ambL9t0WIUmlOfEHbzwm3OwORvUo6jYZ5ebs_z8FJM5V4l80ZPr1VnSg$ .
Participation Survey:
If you plan to submit an entry to the CAHRA Challenge (whether that includes a preliminary submission or not), please complete this participation survey by the end of Wednesday 11th March: CAHRA Challenge Participation Survey – Fill in form<https://urldefense.com/v3/__https://forms.office.com/e/2CQNCWExjG__;!!Mih3wA!AY82rb7euKu2Nv8f4Bd2bRdNlHQrqu5Ed1ambL9t0WIUmlOfEHbzwm3OwORvUo6jYZ5ebs_z8FJM5V4l80YqT34Sag$ > . We will accept entries who have not filled out the participation survey, but this will help us to plan how we spend our resources on assessing entries.
Entry submission forms for each CAHRA Challenge dataset:
Submissions can be made for each CAHRA Challenge dataset using via Google forms. These can be found in the Submission section for each dataset on the website or via these links:
1.
Compositional Heterogeneity: https://urldefense.com/v3/__https://forms.gle/XfE4oUNgGL2znvsE6__;!!Mih3wA!AY82rb7euKu2Nv8f4Bd2bRdNlHQrqu5Ed1ambL9t0WIUmlOfEHbzwm3OwORvUo6jYZ5ebs_z8FJM5V4l80YZWSLipQ$
2.
Conformational Heterogeneity: https://urldefense.com/v3/__https://forms.gle/8gLzUBVtJJgvGJ8n8__;!!Mih3wA!AY82rb7euKu2Nv8f4Bd2bRdNlHQrqu5Ed1ambL9t0WIUmlOfEHbzwm3OwORvUo6jYZ5ebs_z8FJM5V4l80YOJ9h8Sw$
3.
Pose Entanglement: https://urldefense.com/v3/__https://forms.gle/HhdBPUx3iDqv5Ro17__;!!Mih3wA!AY82rb7euKu2Nv8f4Bd2bRdNlHQrqu5Ed1ambL9t0WIUmlOfEHbzwm3OwORvUo6jYZ5ebs_z8FJM5V4l80Yv6PHdng$
Other CAHRA Information:
For all challenge information, datasets, and submission timeline, please visit: https://urldefense.com/v3/__https://heterogeneity.notion.site/challenge__;!!Mih3wA!AY82rb7euKu2Nv8f4Bd2bRdNlHQrqu5Ed1ambL9t0WIUmlOfEHbzwm3OwORvUo6jYZ5ebs_z8FJM5V4l80ZPr1VnSg$
Please share this with others who may be interested.
The CAHRA Team from the Flatiron Institute, CCP-EM/STFC, and Princeton University
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