Count phrases for sentiment analysis
I know how to count words from my custom dictionary in Rapidminer. How can I count the number of occurrences of some phrases (e.g. "very good") or in other words of n-gramms? My first solution was to generate n-gramms from all words and words-combinations, then count all possible n-gramms using "Process Document"-Operator and at the end some how to get rid of all obsolete n-gramms.