Forgetting and Update – an exploration

Nayak, Abhaya; Chen, Yin; Lin, Fangzhen

doi:10.4230/DagSemProc.07351.12

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Forgetting and Update – an exploration

Authors Abhaya Nayak, Yin Chen, Fangzhen Lin

Part of: Volume: Dagstuhl Seminar Proceedings, Volume 7351
Part of: Series: Dagstuhl Seminar Proceedings (DagSemProc)
License: Creative Commons Attribution 4.0 International license
Publication Date: 2007-11-20

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Document Identifiers

DOI: 10.4230/DagSemProc.07351.12
URN: urn:nbn:de:0030-drops-12131

Subject Classification

Keywords

Knowledge Update
Erasure
Forgetting
Dalal Distance
Winslett Distance.

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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.

Cite As Get BibTex

Abhaya Nayak, Yin Chen, and Fangzhen Lin. Forgetting and Update – an exploration. In Formal Models of Belief Change in Rational Agents. Dagstuhl Seminar Proceedings, Volume 7351, pp. 1-14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007) https://doi.org/10.4230/DagSemProc.07351.12

Author Details

Abhaya Nayak

Yin Chen

Fangzhen Lin

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