I have a question regarding the time needed for training a classifier. I am facing the specific problem of Sentiment Analysis (classification of text as pos/neg/neu).
(Excepting online learning algorithms) Since the training stage of a classifier is usually conducted only once and offline, in the end does it really matter how much time would it take for training ?
If the classifier is to be trained over a mobile or a resource-constrained platform, reducing such training time would still make more sense, though...
Thanks in advance.