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Syntactico-Semantic Reasoning using PCFG, MEBN & PP Attachment Ambiguity

2019-01-28 05:04:28
Shrinivasan R Patnaik Patnaikuni, Dr. Sachin R Gengaje
arXiv_AI
     
Abstract

Probabilistic context free grammars (PCFG) have been the core of the probabilistic reasoning based parsers for several years especially in the context of the NLP. Multi entity bayesian networks (MEBN) a First Order Logic probabilistic reasoning methodology is widely adopted and used method for uncertainty reasoning. Further upper ontology like Probabilistic Ontology Web Language (PR-OWL) built using MEBN takes care of probabilistic ontologies which model and capture the uncertainties inherent in the domain's semantic information. The paper attempts to establish a link between probabilistic reasoning in PCFG and MEBN by proposing a formal description of PCFG driven by MEBN leading to usage of PR-OWL modeled ontologies in PCFG parsers. Furthermore, the paper outlines an approach to resolve prepositional phrase (PP) attachment ambiguity using the proposed mapping between PCFG and MEBN.

Abstract (translated)

URL

https://arxiv.org/abs/1809.07607

PDF

https://arxiv.org/pdf/1809.07607.pdf

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