This is HUGE. So many companies are trying to use sentiment analysis as their marketing tool for how they parse social media. With an open source tool, it would make it easier for regular developers who man not know much about NLP to tap into that part of the industry.

As I'm reading though the article I see that it says the algorithm can understand "Human Language." By this I'm guessing they mean English. One thing I learned about sentiment analysis is that analyzing other languages may prove to be a bit more difficult.

Another question I have is to run it up against this very basic sentiment analysis engine that my old manager built which basically had 13 positive words and 13 negative words and was about 80% accurate as well: no neural networks, AI or machine learning needed.