File descriptions train.csv - the training set Contains an id variable for a product, the features(variables) x_1, ..., x_100 describing the products, each line/row being a single product. The class variable y contains the product class 1, 2, ..., 9. The classes and features have been anonymized to avoid advantages of background knowledge. test.csv - the test set Contains an id variable for a product, the features(variables) x_1, ..., x_100 describing products, each line being a single product, similarly to the training set. Does not have the class variable y , which needs to be predicted for each product.