Polaris: Lymba’s Semantic Parser
DAN I. MOLDOVAN, Eduardo Blanco · 2012
Semantic representation of text is key to text understanding and reasoning.In this paper, we present Polaris, Lymba's semantic parser.Polaris is a supervised semantic parser that given text extracts semantic relations.It extracts relations from a wide variety of lexico-syntactic patterns, including verb-argument structures, noun compounds and others.The output can be provided in several formats: XML, RDF triples, logic forms or plain text, facilitating interoperability with other tools.Polaris is implemented using eight separate modules.Each module is explained and a detailed example of processing using a sample sentence is provided.Overall results using a benchmark are discussed.Per module performance, including errors made and pruned by each module are also analyzed.