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Forgetting and Update -- an exploration

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Abstract

Knowledge Update (respectively Erasure) and Forgetting are two very
different concepts, with very different underlying motivation. Both are tools for knowledge management; however while the former is meant for accommodating new knowledge into a knowledge corpus, the latter is meant for modifying – in fact reducing the expressivity – of the underlying language. In this paper we show that there is an intimate connection between these two concepts: a particular form of knowledge update and literal forgetting are inter-definable. This connection is exploited to enhance both our understanding of update as well as forgetting in this paper.

BibTeX - Entry

@InProceedings{nayak_et_al:DagSemProc.07351.12,
  author =	{Nayak, Abhaya and Chen, Yin and Lin, Fangzhen},
  title =	{{Forgetting and Update – an exploration}},
  booktitle =	{Formal Models of Belief Change in Rational Agents},
  pages =	{1--14},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{7351},
  editor =	{Giacomo Bonanno and James Delgrande and J\'{e}r\^{o}me Lang and Hans Rott},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/opus/volltexte/2007/1213},
  URN =		{urn:nbn:de:0030-drops-12131},
  doi =		{10.4230/DagSemProc.07351.12},
  annote =	{Keywords: Knowledge Update, Erasure, Forgetting, Dalal Distance, Winslett Distance.}
}

Keywords: Knowledge Update, Erasure, Forgetting, Dalal Distance, Winslett Distance.
Seminar: 07351 - Formal Models of Belief Change in Rational Agents
Issue date: 2007
Date of publication: 20.11.2007


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