# How often is the training and validation data updated?

**URL:** <https://forum.numer.ai/t/how-often-is-the-training-and-validation-data-updated/2081>\
**Category:** Tournament\
**Created:** [February 28, 2021, 7:58pm UTC](https://forum.numer.ai/t/how-often-is-the-training-and-validation-data-updated/2081 "2021-02-28T19:58:40Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![v\_newbie](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.numer.ai/v_newbie/32/613_2.png) [@v\_newbie](https://forum.numer.ai/u/v_newbie)\
**Post date:** [February 28, 2021, 7:58pm UTC](https://forum.numer.ai/t/how-often-is-the-training-and-validation-data-updated/2081/1 "2021-02-28T19:58:40Z")

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Hi guys, I’ve just joined Numerai couple of days ago and I found that the training and validation data of round 252 and 253 are the same. Does anyone know how often the training and validation data are updated please?

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**Author:** ![wigglemuse](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.numer.ai/wigglemuse/32/3094_2.png) [@wigglemuse](https://forum.numer.ai/u/wigglemuse)\
**Post date:** [February 28, 2021, 8:40pm UTC](https://forum.numer.ai/t/how-often-is-the-training-and-validation-data-updated/2081/2 "2021-02-28T20:40:19Z")

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The training data never updates. That’s it. However, we do get a handful of new validation eras once in a while (once or twice a year maybe). They said they were gonna add some every six months, but it doesn’t look like they are actually gonna hold to that. There is a feature expansion in the pipeline though – i.e. not more training rows, but more features per row. A whole lot more (10x what we have now). There will be a big announcement about that when the time comes…

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**Author:** ![v\_newbie](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.numer.ai/v_newbie/32/613_2.png) [@v\_newbie](https://forum.numer.ai/u/v_newbie)\
**Post date:** [March 1, 2021, 8:54am UTC](https://forum.numer.ai/t/how-often-is-the-training-and-validation-data-updated/2081/3 "2021-03-01T08:54:16Z")

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Thanks a lot! I’ve thought the data is constantly updated and worried that we need to re-train the model once a while…wondering how can the data keep the information up to date if it’s never updated…looking forward to the big announcement!

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**Author:** ![wigglemuse](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.numer.ai/wigglemuse/32/3094_2.png) [@wigglemuse](https://forum.numer.ai/u/wigglemuse)\
**Post date:** [March 1, 2021, 2:39pm UTC](https://forum.numer.ai/t/how-often-is-the-training-and-validation-data-updated/2081/4 "2021-03-01T14:39:59Z")

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The training data represents 10 years, but the newest of it is at least a several years old. (There is also another 2 1/2 years worth of validation data, some of which is pretty recent.) The idea is to make a general model that works well…forever, I guess, and not just fit (overfit) to the most recent time periods. Whether or not that is a wise setup is open to debate, but that’s the way it is.