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Nayak, Abhaya ; Chen, Yin ; Lin, Fangzhen

Forgetting and Update -- an exploration

07351.NayakAbhaya.Paper.1213.pdf (0.2 MB)


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

  author =	{Abhaya Nayak and Yin Chen and Fangzhen Lin},
  title =	{Forgetting and Update -- an exploration},
  booktitle =	{Formal Models of Belief Change in Rational Agents},
  year =	{2007},
  editor =	{Giacomo Bonanno and James Delgrande and J{\'e}r{\^o}me Lang and Hans Rott},
  number =	{07351},
  series =	{Dagstuhl Seminar Proceedings},
  ISSN =	{1862-4405},
  publisher =	{Internationales Begegnungs- und Forschungszentrum f{\"u}r Informatik (IBFI), Schloss Dagstuhl, Germany},
  address =	{Dagstuhl, Germany},
  URL =		{},
  annote =	{Keywords: Knowledge Update, Erasure, Forgetting, Dalal Distance, Winslett  Distance.}

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

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