Explore advanced natural language processing concepts in this lecture on semantics and discourse from CMU's Advanced NLP course. Delve into parsing for general purpose semantic representations, discourse coherence, pragmatics, and reference resolution. Learn about context-free compositionality, lambda expressions, speech acts, and various types of discourse. Gain insights into the complexities of language understanding, including pragmatics and reference resolution, illustrated with examples from New Yorker cartoons and interviews. Enhance your knowledge of advanced NLP techniques and their applications in real-world language processing tasks.