Schedule

Last Updated: August 20, 2026

Task 1: Structured Radiological Reasoning Prediction

• July 14, 2026 — Data Release 1: 300 cases

• July 20, 2026 — Data Release 2: 400 cases

• July 25 30, 2026 — Data Release 3: 300 cases

• August 4, 2026 — Formal Run Begins

A total of 1,000 Task 1 cases will be released.

Task 2: Causal Verification and Correction

• July 22 August 7, 2026 — Dataset Release (Tentative)

• August 10, 2026 — Dataset Release

• August 10, 2026 — Formal Run Begins

The Task 2 release date is subject to the completion of radiologist review. If the release is delayed, the formal run schedule may be adjusted accordingly.

Formal Run

• August 4, 2026 — Task 1 Formal Run Begins

• August 9, 10, 2026 — Task 2 Formal Run Begins

• August 17, 19, 21, 2026 (AoE) — Run Submission Deadline

• Around August 22, 2026 — Evaluation Results Returned

• September 1, 2026 — Participant Paper Draft Due

• November 1, 2026 — Camera-ready Participant Paper Due

• December 8–10, 2026 — NTCIR-19 Conference

All submission deadlines are 11:59 p.m. Anywhere on Earth (AoE), unless otherwise specified.

This schedule is tentative and may change depending on the progress of dataset preparation and release. Any updates will be announced through the Hidden-RAD2 website and the corresponding GitHub repositories.

• Task 1: https://github.com/hidden-rad2/Task1
• Task 2: https://github.com/hidden-rad2/Task2