Defeasible Reasoning with Knowledge Graphs

Dave Raggett
9/22/2023
cs.AI

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Abstract

Human knowledge is subject to uncertainties, imprecision, incompleteness and inconsistencies. Moreover, the meaning of many everyday terms is dependent on the context. That poses a huge challenge for the Semantic Web. This paper introduces work on an intuitive notation and model for defeasible reasoning with imperfect knowledge, and relates it to previous work on argumentation theory. PKN is to N3 as defeasible reasoning is to deductive logic. Further work is needed on an intuitive syntax for describing reasoning strategies and tactics in declarative terms, drawing upon the AIF ontology for inspiration. The paper closes with observations on symbolic approaches in the era of large language models.

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Cite this paper

@article{raggett2023defeasible,
  title  = {Defeasible Reasoning with Knowledge Graphs},
  author = {Dave Raggett},
  year   = {2023},
  eprint = {2309.12731},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2309.12731v1}
}

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