I have some user comments data from which I want to find the name of consumer electronic brands. For instance consider these ne_chinked example sentence which talk about \"P
What I would do is add all entries of electronic brands you care in a list, and then in order for each entry to be unique I would use its entry's index in the list as a feature.
e.g. ['Nokia', 'Apple', 'Microsoft']
then: Nokia => 1 Microsoft => 2 etc
This could help having a unique representation per brand as as a result a feature for SVM amongst others I pressume.