ICLR Reproducibility Challenge

Second Edition, 2019

Welcome to the 2nd edition of ICLR reproducibility challenge! One of the challenges in machine learning research is to ensure that published results are reliable and reproducible. In support of this, the goal of this challenge is to investigate reproducibility of empirical results submitted to the 2019 International Conference on Learning Representations. We are choosing ICLR for this challenge because the timing is right for course-based participants (see below), and because papers submitted to the conference are automatically made available publicly on Open Review.


News :


Task Description

You should select a paper from the 2019 ICLR submissions, and aim to replicate the experiments described in the paper. The goal is to assess if the experiments are reproducible, and to determine if the conclusions of the paper are supported by your findings. Your results can be either positive (i.e. confirm reproducibility), or negative (i.e. explain what you were unable to reproduce, and potentially explain why).

Essentially, think of your role as an inspector verifying the validity of the experimental results and conclusions of the paper. In some instances, your role will also extend to helping the authors improve the quality of their work and paper.

You do not need to reproduce all experiments in your selected paper, for example the authors may experiment with a new method that requires more GPUs than you have access to, but also present results for a baseline method (e.g. simple logistic regression), in which case you could elect to reproduce only the baseline results. It is sometimes the case that baseline methods are not properly implemented, or hyper-parameter search is not done with the same degree of attention.

If available, the authors’ code can and should be used; authors of ICLR submissions are encouraged to release their code to facilitate this challenge. The methods described can also be implemented/re-implemented according to the description in the paper. This is a higher bar for reproducibility, but may be helpful in detecting anomalies in the code, or shedding light on aspects of the implementation that affect results.

Registration & Workflow

Select a paper and avoid duplicate work

We will be using this repository primarily to organize the challenge. Once the ICLR paper review period starts, our form will be live for participants to claim a paper. Unlike last year’s challenge, this year we want to encourage participants to avoid duplicate reproducibility efforts. Thus, before registering for the challenge go through our open issues to search for the papers which are already claimed by other participants. You can search by the paper name or by the OpenReview ID, which you will need to submit at the time of registration. You can also claim a paper which has been “relinquished” (more on that below).

Submit form and note issue number

Now we are ready to submit the form. Fill the required questions, and make sure you have the following details handy:

Once you submit the form, a Github issue will be created for your claim. Take note of this issue number (#xxxx). Participant details are kept anonymous from the issue, only the Team Name and Institution name should be visible for the claim. You are encouraged to contact the authors in private to clarify doubts regarding the paper but you should maintain your anonymity in the issue section before your report submission.

Post reproducibility project

After your reproducibility project is complete, you should:

Submission Instructions

Leaving the competition

If you choose to leave the competition, please comment the following: @reproducibility-org close which will close the issue if you are the valid owner of the issue. If you want to work on another paper or work on the same paper, you will have to resubmit our form.

Participating Institutions

Instructors teaching a graduate-level machine learning course in Fall 2018 are encouraged to use this challenge as their final course project. The project can be completed individually or in small groups. Participation by other researchers or research trainees with adequate machine learning experience is also encouraged. Contact Joelle Pineau or us to register your course.

Available resources

Proposed outcomes

Participants should produce a Reproducibility report, describing the target questions, experimental methodology, implementation details, analysis and discussion of findings, conclusions on reproducibility of the paper. This report should be posted as a contributed review on OpenReview.

The result of the reproducibility study should NOT be a simple Pass / Fail outcome. The goal should be to identify which parts of the contribution can be reproduced, and at what cost in terms of resources (computation, time, people, development effort, communication with the authors).

Participants should expect to engage in dialogue with ICLR authors through the OpenReview site. In cases where participants have made significant contributions to the final paper, ICLR should allow adding these participants as co-authors (at the request of the original authors only.)

Important dates

Suggested Reading List

See this list.

Questions?

Drop us a mail at reproducibility.challenge@gmail.com

Contact & People