Speaker
Affilliation
Rome
Abstract
In this talk we will present an algorithm, called Structural Semantic Interconnections (SSI), which creates structural specifications of the possible senses for each word in a context, and selects the best hypothesis according to a pattern grammar, describing relations between sense specifications. Sense specifications are created in the form of semantic graphs from several available lexical resources, that we integrated in part manually, in part with the help of automatic procedures. We present a fast implementation of SSI, about to be released online, and we discuss the experiments performed on different semantic disambiguation problems, like automatic ontology population, disambiguation of sentences in generic texts, disambiguation of words in glossary definitions. Finally we show the potential of semantic graphs for the validation of manual and automatic sense annotations.