Lecture 11 (03/04/2023, 2 hours): computational lexical semantics

Introduction to lexical semantics. Lexicon, lemmas and word forms. Introduction to the notion of concepts, the triangle of meaning, concepts vs. named entities. Word senses: monosemy vs. polysemy. Key tasks for Natural Language Understanding: Word Sense Disambiguation (within lexical semantics), Semantic Role Labeling and Semantic Parsing (sentence-level).