# Recommender Systems (Have more than one feature) **URL:** \ **Category:** Unsupervised Learning, Recommenders, Reinforcement\ **Tags:** week-module-2\ **Created:** [July 14, 2024, 12:01pm UTC](https://community.deeplearning.ai/t/recommender-systems-have-more-than-one-feature/662959 "2024-07-14T12:01:34Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Ashraf\_25](https://avatars.discourse-cdn.com/v4/letter/a/c68b51/32.png) [@Ashraf\_25](https://community.deeplearning.ai/u/Ashraf_25)\ **Post date:** [July 14, 2024, 12:01pm UTC](https://community.deeplearning.ai/t/recommender-systems-have-more-than-one-feature/662959/1 "2024-07-14T12:01:34Z")
Hi, In collaborative filtering algorithm , How can I define the number of features in the lecture there are only two features (Romance & Action movies) , what about if I make a large movie recommender system like Netflix , you know there are more than two types of movies , so How can I handle it?, and Thanks in advance ---
**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:** [July 14, 2024, 1:40pm UTC](https://community.deeplearning.ai/t/recommender-systems-have-more-than-one-feature/662959/2 "2024-07-14T13:40:48Z")
Hello, @Ashraf_25, You must be talking about this silde: ![image](https://global.discourse-cdn.com/dlai/original/3X/a/6/a6f2abb64b33d07bde0f931dcf6a7c9c24d491fc.jpeg) As shown, two features corresponds to two values in the weight vector. In other words, if you want N features, you set the weight vector to have N values. If you watch this lecture again, you will find that, after this slide, all subsequent discussions _ **do not** _ specify the lengths of the weights w and features x, which means that any length is fine, including N. In the assignment, you will practice a case that is more than 2. Cheers, Raymond ---
**Author:** ![Ashraf\_25](https://avatars.discourse-cdn.com/v4/letter/a/c68b51/32.png) [@Ashraf\_25](https://community.deeplearning.ai/u/Ashraf_25)\ **Post date:** [July 14, 2024, 4:42pm UTC](https://community.deeplearning.ai/t/recommender-systems-have-more-than-one-feature/662959/3 "2024-07-14T16:42:53Z")
Yes, I am talking about this lecture in the image. Thanks , I got it ---
**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:** [July 15, 2024, 6:35am UTC](https://community.deeplearning.ai/t/recommender-systems-have-more-than-one-feature/662959/4 "2024-07-15T06:35:09Z")
That’s great!