openml / openml/OpenML

Same dataset can be uploaded multiple times

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Dominant language
PHP
Stars
755
Forks
128
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No merged PRs in 30d

Description

I think that the exact same database should not be allowed to be uploaded multiple times. Currently, if I upload the same dataset twice, is returns new IDs for both. I think on the server side, there should be a check (maybe md5sum hash based) to not allow the exact same content to re-uploaded.

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Research direction

No file, test, or upload entry point is named. Locate the server-side dataset upload handling, then inspect how content and IDs are validated; done should mean an exact duplicate upload is rejected or consistently identified without affecting distinct datasets, with coverage for repeated uploads.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
backend, data, machine-learning
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
45/100

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