Random Forest

Which one to use – RandomForest vs SVM vs KNN?

Which one to use – RandomForest vs SVM vs KNN?

The basic steps to deciding which algorithm to use will depend on a number of factors. A few factors which one can look for are listed below: The number of examples in the training set.Dimensions of featured space.Do we have correlated features?Is overfitting a problem? These are just a few factors on which the selection of the algorithm may depend. Once you have the answers to all these questions, you can move ahead to decide the algorithm. SVM The main reason to use an SVM instead is that the problem might not be linearly separable. In that case, we will…
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How to create Movie Recommendation System

How to create Movie Recommendation System

In this notebook, I will try to use a few recommendation algorithms (content-based, popular-based and shared filters) and try to build a collection of these models to come up with our final movie recommendation system. For us, we have two MovieLens data sets. Full Data Set: Contains 26,000,000 ratings and 750,000 tag requests applied to 45,000 movies by 270,000 users. Includes genome tag data with 12 million affiliate scores on 1,100 tags.Small Data Set: Includes 100,000 ratings and 1,300 tag applications applied to 9,000 movies by 700 users.I will create a Simple Recommendation using movies from the Full Database while…
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