machine learning - Custom Features using scikit-learn -


i working on project classify short text. 1 requirement have along vectorizing short text, add additional feature length of text, number of url's etc features each input.

is supported in scikit-learn? link example notebook or video help.

thanks, romit.

you can combine features extracted different transfomers (e.g. 1 extracts bag of words (bow) features 1 extracts other statistics) using featureunion class.

the normalization of features , there small number respect number of distinct bow features problematic. whether or not problem depends on assumptions made models trained downstream , on specific data , target task.


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