# Cost function for features and paramters for collaborative filtering?

**URL:** <https://community.deeplearning.ai/t/cost-function-for-features-and-paramters-for-collaborative-filtering/362456>\
**Category:** Unsupervised Learning, Recommenders, Reinforcement\
**Tags:** week-module-2\
**Created:** [June 24, 2023, 12:26pm UTC](https://community.deeplearning.ai/t/cost-function-for-features-and-paramters-for-collaborative-filtering/362456 "2023-06-24T12:26:31Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![rmwkwok](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/rmwkwok/32/126977_2.png) [@rmwkwok](https://community.deeplearning.ai/u/rmwkwok)\
**Post date:** [June 25, 2023, 12:47am UTC](https://community.deeplearning.ai/t/cost-function-for-features-and-paramters-for-collaborative-filtering/362456/4 "2023-06-25T00:47:45Z")

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Hello @Saim_Rehman,

Given what you have shared with us in this thread, I recommend you to read [this whole thread](https://community.deeplearning.ai/t/how-do-we-get-to-know-to-that-the-x1-is-romance-action-etc-in-real-life/258002) first, and then let us know if you have any specific questions.

Btw, we are providing the ratings to the model at training 😉

Raymond

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_[View the full topic](https://community.deeplearning.ai/t/cost-function-for-features-and-paramters-for-collaborative-filtering/362456)._