Register to reply

Information Theory - Shannon's Self-Information units

by Mihel
Tags: bits, information theory, shannon
Share this thread:
Mihel
#1
Mar27-12, 07:45 AM
P: 1
Hi,

I'm familiar with information and coding theory, and do know that the units of Shannon information content (-log_2(P(A))) are "bits". Where "bit" is a "binary digit", or a "storage device that has two stable states".

But, can someone rigorously prove that the units are actually "bits"? Or we should only accept it as a definition and then justify it with coding examples.

Thanks!
Phys.Org News Partner Engineering news on Phys.org
Tiny UAVs and hummingbirds are put to test
Britain to trial driverless cars from 2015
NIST corrosion lab tests suggest need for underground gas tank retrofits
totinen
#2
Apr8-12, 06:44 AM
P: 3
No, you can use what ever logarithmic base. For natural information you could use unit "nat" with base e and for binary information unit "bit" with base 2.


Register to reply

Related Discussions
Is it Information or Interaction that Observes ? Quantum Physics 9
Review of Lenny Susskind's Black Holes, Information, String Theory General Physics 0