home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky ont.events:636 uw.talks:116 uw.cs.grad:284
- Newsgroups: ont.events,uw.talks,uw.cs.grad
- Path: sparky!uunet!utcsri!torn!watserv2.uwaterloo.ca!watdragon.uwaterloo.ca!jeeves.uwaterloo.ca!wlrush
- From: wlrush@jeeves.uwaterloo.ca (wlrush)
- Subject: THEORY SEMINAR
- Message-ID: <C19FFL.7GL@watdragon.uwaterloo.ca>
- Keywords: Paul Vitanyi, CWI/Universiteit van Amsterdam
- Sender: news@watdragon.uwaterloo.ca (USENET News System)
- Organization: University of Waterloo
- Distribution: ont
- Date: Fri, 22 Jan 1993 14:40:32 GMT
- Lines: 34
-
-
- DEPARTMENT OF COMPUTER SCIENCE
- UNIVERSITY OF WATERLOO
- SEMINAR ACTIVITIES
-
- THEORY SEMINAR
-
- -Wednesday, January 27, 1993
-
- Paul Vitanyi (CWI/Universiteit van Amsterdam), will
- speak "On the Information Distance".
-
- TIME: 11:30 a.m. - 12:30 p.m.
-
- ROOM: DC 1304
-
- ABSTRACT
-
- We investigate the notion of absolute information
- distance. It turns out that very differently motivated
- proposals arising from the physics notion of both
- reversible (energy-free) computations and reversible
- computations coincide. This distance is also the
- optimal cognitive distance, improving earlier results.
- A related distance measures the amount of
- nonreversibility (minimum dissipated energy) of a
- computation. This work emerged from the physics of
- energy-free computation and the quest in pattern
- recognition for the notion of `picture similarity'. The
- mathematical techniques involve Kolmogorov complexity
- (Algorithmic Information Theory). This is joint work
- with Charles Bennett, Peter Gacs, Ming Li, and Wojtiech
- Zurek.
-
-