Extract Sentiment - SentiWordNet cannot cope with "very" and "not"
using the operator extract sentiment in RapidMiner, I tested some example sentences like "This phone is good" "This phone is not good" to make sure that the operator is able to handle negation. "Not" is covered in the SentiWordNet lexicon if you look it up but these two sentences get exactly the same value after running the process.
It would be really helpful to hear if somebody has recognized something similar or if somebody is able to help me fix the problem.
Thanks a lot!