Lexical Class Semantic Analysis
Ivan Habernal · 2008
Abstract — Semantic analysis of lexical classes is a funda-mental step of semantic analysis based on stochastic semantic parsing. The lexical class is a single word or a word group with specific semantic information such as dates, times, cities, etc. Having obtained a set of lexical classes, a semantic parse tree can be built upon it. This tree describes the relation between lexical classes and their appropriate superior concepts. This paper describes an implementation of a lexical class identification based on context-free grammars and parsing methods. The semantic analysis of lexical classes is based on grammars enriched with semantic tags. The main algorithm is described together with the experimental results. I.