I am trying to find whether a given sentence is a "question request", "call for action", etc. I am using supervised multilabel classification for that.
What will be a good set of features to use? I am currently using Bag-of-words with trigrams, modal verbs, question words, etc. but the result is not that good.
Input example: "Can you get this today? I need following items."
https://code.google.com/p/word2vec/ is probably a good feature.
Illinois Wilkifier can also be very helpful: http://cogcomp.cs.illinois.edu/demo/wikify/?id=25
Also take a look at features used for Dataless classification: http://cogcomp.cs.illinois.edu/page/project_view/6