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Welcome to the OpenML Community. Feel free to announce yourself and your interest in OpenML. Everyone is welcome as long as you are polite and constructive to the community. Please post bug reports on GitHub:
https://github.com/
openml/OpenML/issues
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User 1995
,
Joaquin Vanschoren
3
11/25/25
Is openml.org down? I’m seeing only a blank page
Thanks for the quick reply, Joaquin. It's working for me now, perhaps it was due to the
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Is openml.org down? I’m seeing only a blank page
Thanks for the quick reply, Joaquin. It's working for me now, perhaps it was due to the
11/25/25
Runtian Zhai
,
Joaquin Vanschoren
2
1/12/25
OpenML Server Down
Hi Runtian, The university (hosting our servers) was under a cyberattack and they shut down the
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OpenML Server Down
Hi Runtian, The university (hosting our servers) was under a cyberattack and they shut down the
1/12/25
COSEAL 2024 Team
1/11/24
COSEAL 2024 in Dresden, May 21-23 (Registration is Open)
Dear all, We are excited to announce this year's edition of the COSEAL workshop (the webpage will
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COSEAL 2024 in Dresden, May 21-23 (Registration is Open)
Dear all, We are excited to announce this year's edition of the COSEAL workshop (the webpage will
1/11/24
Stephen Piccolo
,
Joaquin Vanschoren
5
2/9/23
Combining feature selection with meta learning
Yes, exactly. You could meta-learn which exact features to select if you have a scenario with many
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Combining feature selection with meta learning
Yes, exactly. You could meta-learn which exact features to select if you have a scenario with many
2/9/23
Leo Grin
,
Jan N. van Rijn
3
5/27/21
Activation email not sent ?
Dear Jan, Thank you for the quick answer! Yes, it works now, thanks! Best, Léo Le jeudi 27 mai 2021 à
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Activation email not sent ?
Dear Jan, Thank you for the quick answer! Yes, it works now, thanks! Best, Léo Le jeudi 27 mai 2021 à
5/27/21
Aishwarya Ambapkar
5/17/21
how to mplement
Determine the type of Dermatology Eryhemato Squamous Disease.
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how to mplement
Determine the type of Dermatology Eryhemato Squamous Disease.
5/17/21
Aurélien
,
Jan N. van Rijn
2
3/25/21
SSL Certificate Expired
Hi Aurelien, Is this still a problem? I had problems accessing the site in my browser yesterday, but
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SSL Certificate Expired
Hi Aurelien, Is this still a problem? I had problems accessing the site in my browser yesterday, but
3/25/21
Sanjula Madurapperuma
1/14/21
Introduction and information about research
Hi everyone! I am Sanjula, a final year undergraduate reading for the BEng(Hons) Software Engineering
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Introduction and information about research
Hi everyone! I am Sanjula, a final year undergraduate reading for the BEng(Hons) Software Engineering
1/14/21
Joaquin Vanschoren
8/21/20
OpenML Fall Hackathon 2020 - Vote now to select the date
Dear all, We'll hold the next OpenML Hackathon this fall, joining Hacktoberfest. It will again be
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OpenML Fall Hackathon 2020 - Vote now to select the date
Dear all, We'll hold the next OpenML Hackathon this fall, joining Hacktoberfest. It will again be
8/21/20
Nina S.
8/27/18
Call for Collaboration in a Medical Research Project
Hello Everyone I am conducting a research project on cerebrovascular surgery as part of requirements
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Call for Collaboration in a Medical Research Project
Hello Everyone I am conducting a research project on cerebrovascular surgery as part of requirements
8/27/18
peng yu
,
Joaquin Vanschoren
6
7/21/18
Add new algorithm implemetation to the tasks
Dear Peng, Sorry about the slow reply. I was on holidays. I looked into it, and indeed this is not
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Add new algorithm implemetation to the tasks
Dear Peng, Sorry about the slow reply. I was on holidays. I looked into it, and indeed this is not
7/21/18
Rafael Novello
, …
Jan van Rijn
6
6/11/18
How to get results/metrics per dataset?
Hi Jan! Sorry for the delay! Thanks a lot for the great help! Now OpenML is much more clear to me!
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How to get results/metrics per dataset?
Hi Jan! Sorry for the delay! Thanks a lot for the great help! Now OpenML is much more clear to me!
6/11/18
Mark Liversedge
,
Joaquin Vanschoren
5
5/14/18
High Volume + Incrementally Growing Datasets
OK :). For generic data storage, there is also Zenodo (also gives you a DOI). If you also want to
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High Volume + Incrementally Growing Datasets
OK :). For generic data storage, there is also Zenodo (also gives you a DOI). If you also want to
5/14/18
Deepika Singhal
5/10/18
Job Opportunities in Artificial Intelligence | Innoplexus Online Hackathon
Hey, I am announcing Innoplexus Online Hackathon where you will have the opportunity to solve a real-
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Job Opportunities in Artificial Intelligence | Innoplexus Online Hackathon
Hey, I am announcing Innoplexus Online Hackathon where you will have the opportunity to solve a real-
5/10/18
Deepika Singhal
3/20/18
[Hackathon Announcement] Lord Of The Machines: Data Science Hackathon on March 24, 2018
Hi, Here is an interesting hackathon for all data science & machine learning lovers: The Lord Of
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[Hackathon Announcement] Lord Of The Machines: Data Science Hackathon on March 24, 2018
Hi, Here is an interesting hackathon for all data science & machine learning lovers: The Lord Of
3/20/18
Adriano Rivolli
, …
Joaquin Vanschoren
3
2/9/18
Q&A
Extracting data characterization / meta-features for datasets
Hi Adriano, 41025 has all features now 41024 has no target feature, so only the 19 simple ones can be
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Q&A
Extracting data characterization / meta-features for datasets
Hi Adriano, 41025 has all features now 41024 has no target feature, so only the 19 simple ones can be
2/9/18
Joaquin Vanschoren
9/1/17
Join us at the Open Machine Learning Hackathon
Dear all, [Apologies if you already received this email.] You are cordially invited to participate in
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Join us at the Open Machine Learning Hackathon
Dear all, [Apologies if you already received this email.] You are cordially invited to participate in
9/1/17
Danny Goodman
,
Joaquin Vanschoren
3
8/4/17
Is OpenML defunct?
Thanks! Confirmed that it's working for me. On Fri, Aug 4, 2017 at 2:32 PM, Joaquin Vanschoren
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Is OpenML defunct?
Thanks! Confirmed that it's working for me. On Fri, Aug 4, 2017 at 2:32 PM, Joaquin Vanschoren
8/4/17
Sami Ullah
, …
Rudolf Kadlec
4
5/23/17
Local installations configurations.
Hi, have you succeeded with this? I followed https://github.com/openml/OpenML/wiki/Local-Installation
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Local installations configurations.
Hi, have you succeeded with this? I followed https://github.com/openml/OpenML/wiki/Local-Installation
5/23/17
Joaquin Vanschoren
,
MrPhipsy
3
2/2/17
OpenML 2017 Developer Workshop coming up soon
Hi Philipp, Sorry, we are in the middle of moving to a new server, hence some inconsistencies. Can
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OpenML 2017 Developer Workshop coming up soon
Hi Philipp, Sorry, we are in the middle of moving to a new server, hence some inconsistencies. Can
2/2/17
Joaquin Vanschoren
9/18/16
OpenML Blog and Youtube Channel
Hi all, Just a small reminder that we have an OpenML Blog: https://medium.com/open-machine-learning
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OpenML Blog and Youtube Channel
Hi all, Just a small reminder that we have an OpenML Blog: https://medium.com/open-machine-learning
9/18/16
Joaquin Vanschoren
8/25/16
OpenML Hackathon (last call)
Open Machine Learning Hackathon @Eindhoven University of Technology, September 5-9, 2016 Website:
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OpenML Hackathon (last call)
Open Machine Learning Hackathon @Eindhoven University of Technology, September 5-9, 2016 Website:
8/25/16
Joaquin Vanschoren
7/23/16
Join the next OpenML Hackathons
Hi, We have two bits of good news. First, our proposal to hold the 2017 OpenML Hackathon again at the
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Join the next OpenML Hackathons
Hi, We have two bits of good news. First, our proposal to hold the 2017 OpenML Hackathon again at the
7/23/16
William RAYNAUT
5/17/16
Exposé and Workflow Construction
Hello everyone, I am currently interested in the topic of Data Mining Workflow Construction, and
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Exposé and Workflow Construction
Hello everyone, I am currently interested in the topic of Data Mining Workflow Construction, and
5/17/16
Brylie Oxley
,
Joaquin Vanschoren
3
4/18/16
How to export/integrate OpenML flow with Orange Data Mining?
Joaquin, Thank you for your quick response. I opened an issue with Orange Data Mining as well, hoping
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How to export/integrate OpenML flow with Orange Data Mining?
Joaquin, Thank you for your quick response. I opened an issue with Orange Data Mining as well, hoping
4/18/16
xavier sumba
, …
Jan van Rijn
16
1/21/16
Contribute to compare results between platforms
Concerning KNIME: Personally, I would start from scratch. Development was started in a very early
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Contribute to compare results between platforms
Concerning KNIME: Personally, I would start from scratch. Development was started in a very early
1/21/16
William RAYNAUT
, …
Joaquin Vanschoren
7
12/8/15
Questions regarding the public database
Hello again, Ok, I didnt realize that it was the previous version of openML. I was hooked by the last
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Questions regarding the public database
Hello again, Ok, I didnt realize that it was the previous version of openML. I was hooked by the last
12/8/15
Joaquin Vanschoren
10/27/15
Open Machine Learning Workshop
Open Machine Learning Workshop @Lorentz Center, Leiden, 14-18 March 2016 Website: http://openml2016.
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Open Machine Learning Workshop
Open Machine Learning Workshop @Lorentz Center, Leiden, 14-18 March 2016 Website: http://openml2016.
10/27/15
Kris van Tienhoven
8/27/15
Hello everyone, I am Kris van Tienhoven a Computer Science and Engineering student at the University
unread,
Hello everyone, I am Kris van Tienhoven a Computer Science and Engineering student at the University
8/27/15
Joaquin Vanschoren
8/19/15
OpenML Workshop 2015 - Register now
Just 2 weeks left before the OpenML Workshop! Register here: http://eindhoven2015.openml.org/ The
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OpenML Workshop 2015 - Register now
Just 2 weeks left before the OpenML Workshop! Register here: http://eindhoven2015.openml.org/ The
8/19/15