Today we are going to introduce to you another piece of technology we have developed at Musicmetric. As you may know, parts of our product are driven by semantic analysis; we don’t just tell you how many people are talking about your artists, but also their opinions, the sentiment and common topics surrounding them. How do we do this? Sentiment analysis is a challenging problem that still has not been solved completely. Many so-called sentiment analysis systems use a very naive method to detect sentiment in a context, i.e. using key words or very basic sentence decomposition. However, human language is not that simple, so these approaches fail to capture irony, sarcasm, slang and other idiomatic expressions.