As you mentioned, lexical, syntactic and semantic ambiguities are primary challenges in computational linguistics (CL) today. It leads me to consideration of training data...
As you mentioned, lexical, syntactic and semantic ambiguities are primary challenges in computational linguistics (CL) today. It leads me to consideration of training data. In my opinion, training data is the primary challenges in CL, because it can help NLP to predict or classify new, never-before-seen data.