Dear All,

The challenge is starting to end, and we noticed that there are many exciting results present on the experimental leaderboards. However, because many people had problems optimizing their algorithm for the time limit in L2, we have decided to extend the submission deadline for L2 only to June 10.

Furthermore, we would like to make you aware of the following steps that you will need to take to participate in the final leaderboards, which we will outline below.

Method description Every team that submits to the final leaderboards will also need to describe their method. We have created a template-description form that covers all the details you need to fill in. Please fill this template in before June 15 and send it to the organizers.

Opensource GitHub repository As stated in the challenge’s rules, authors of winning solutions will need to provide an open-source GitHub repo to be eligible for a prize. The structure of this repo should mimic the one of the tiger-algorithm-example, with at least the following components: 1) a Dockerfile, 2) a test script, 3) a requirements file, and 4) all the code to build your algorithm. In addition, for the weights file(s), we recommend saving those in the same repo with LFS. Although this applies to winning solutions, which will be announced at the beginning of July, we invite all participants (especially those who entered leaderboard 2) to make their solutions available after June 10 to further foster the development of AI for TILs quantification within the scientific community.

Planning We are excited about the Final leaderboards results. The final leaderboards will be open after June 10, after which you can submit one algorithm to the final leaderboards. Due to the extensions for L2 we aim to have the final results by early July.

June 3: L1 closes June 10: L2 closes June 15: method descriptions are due July 1: final results announced July 10: winning solutions made open-source September: paper submitted (tentative)

Best wishes, TIGER ORGANIZING Team