Structured sentiment analysis has been around for a while - meaning models that take into account the overall document as more than just a bag of words (referen

Structured sentiment analysis has been around for a while - meaning models that take into account the overall document as more than just a bag of words (reference below to a 2007 Google paper). There are a surprising number of challenges for those new to the problem, e.g. sarcasm or idioms. It's kind of fun to work on. http://acl.ldc.upenn.edu/P/P07/P07-1055.pdf http://acl.ldc.upenn.edu/P/P07/P07-1055.pdf