Information definitions

Wiener information on the well-known definition: "Information is information, not the material is not energy."

Information exists generally in the nature and the human society moves, its manifestation by far is more complex than the material and the energy. But is also far them is simpler than, actually the information is “the material and the energy, and own `information ' and its attribute logo (indication, marking), performance."

Modern information definitions

Deng Yu et al use standard logic 'Genus add the inter-species difference ' definition mode (or calls connotation definition). This definition mode manifests by following formula:

Is defined a item = neighbor genus + the inter-species difference.

they changed the original negative Shannon and Wiener information into a positive definition.

Advance of Wiener information definition: contrary

The information is the information, the information is the material, the energy, the information and the attribute indication----Wiener information definition opposite.

Shannon information definition affirmation turn over

Reverse Shannon information definition: The information is certainty increase. (information is a measure of one's freedom of choice when one selects a message)

Corresponding formula

Ir=-logPi+1

or

Ir‘=log((N-ni)/N)＝log(nq/N)＝logPq

Shannon information from the form of negative entropy -- Uncertainty, transforms the positive entropy formally to make up --the determine degrees. See the original negative of the Shannon definition of information formula

I=-logPi=-log((ni)/N) =-(logni-logN)=logN-log ni=-log((N-nq)/N)=1-1- logPi=1-(1+ logPi)=(1- logPi) –1

Deng's information definition

The information is the thing phenomenon and the attribute marking (indication) set.

Old information definitions

Shannon information definition

Wiener information definition

Fisher information definition

References

* Information definition standardization

External links

* [http://blogger.org.cn/dispbbs.asp?boardID=46&ID=36623 Information definition standardization]