|
Measuring Information
Quantity of information Quantifying information (details)
Information and Uncertainty
Quantifying information (continued)
Entropy
Value of information
Amount versus value
Gould's measure
Other resources
Contact Information
Department of Zoology |
Information and Communication A brief digression: information and uncertainty Uncertainty can be seen as the flip side of information. If we receive a message that allows us to distinguish between k equally likely alternatives, we are said to have acquired log(k) units of information. Analogously, if we do not know which of k equally likely possibilities is realized, we face log(k) units of uncertainty. Notice that because of this relationship between uncertainty and information, we can write: Initial uncertainty - final uncertainty = information acquired [ Previous Page ] [ Next Page ]
Last modified April 2, 2006 |