# Information Theory

43 Is it possible to measure the Quality of Information? And by the way - What is Information? And what is Quality?
· Hospital of Marghita
Doug Elias · Ithaca College
The problem, Andras, is that I don't know how to combine *my* 'Qi' with someone else's 'Qi', given that they're all unique, in such a way that the mer... [more]
1 Are the Renyi and Havdra-Charvat (aka Tsallis) entropies real entropies?
· Università degli Studi di Camerino
No.
2 I want to calculate the variance of the noise in a nonlinear channel. how do I do?
· École nationale polytechnique d'Alger
Yuriy Shmaliy · Universidad de Guanajuato
That is true for the variance in a linear channel. Why did you mention that the channel is nonlinear?
4 Channel Capacity?
· Indian Institute of Technology Kanpur
Vahid Meghdadi · Université de Limoges
It is clear that when SNR -> infinity, you can use QAM-x where x->infinity. So for one channel use you can send infinity of bits without error (becaus... [more]
10 Information contained in a sampled signal
· Indian Institute of Technology Kanpur
Jean-Paul Cipria · Nanotechinnov
Manoj, The sampling theorem says that you may reconstitute entirely a signal if you upper sample the signal and if the signal is sufficiently periodi... [more]
2 Multiple access techniques under research
· Al-Quds University
4 Who denoted first the entropy function by an H?
· ParisTech - Paris Institute of Technology
Josip Stepanic · University of Zagreb
Regarding only the notation, traces go back to L. Boltzmann, http://en.wikipedia.org/wiki/H-theorem.
8 Can anybody help me with conditional cross entropy or conditional mutual information computation?
· IIT Kharagpur
Sandipan Karmakar · IIT Kharagpur
Thanks Dr Geng...
• Question:
Open How do I calculate the individual probabilities from an estimated kernel distribution?
I have my data set. I have obtained the different bandwidths (h_opt) but how do I actually compute the individual probabilities?
· University of Mauritius
4 Any topics ?
· Alcatel Lucent
Patrick Solé · ParisTech - Paris Institute of Technology
Is algebraic decoding dead? At least in applications?
• Question:
Open Is it possible to find an information source with memory and infinite order ?
Infinite order = without order?
· Institut National des Sciences Appliquées de Rennes
4 Does the Holographic Principle contradict the Simulated Reality hypothesis?
Gustavo Valdiviesso · Universidade Federal de Alfenas
You are right again in your statement: A 2D surface cannot represent a 3D volume (I believe you meant volume instead of surface here, please correct m... [more]
8 What is the interest of a linear code over a field of 13 elements ?
· African Institute for Mathematical Sciences
Georges Ferdinand Randriafanomezantsoa Radohery · African Institute for Mathematical Sciences
@ Patrick Solé. Indeed she is in Cape Town if I'm not wrong, but I'm rather working with her collaborator the Professor Jamshid Moori.
15 How can we calculate the shannon entropy for a dataset which we want to train a machine with?
· Blekinge Institute of Technology
Pouya Sinaian · Blekinge Institute of Technology
@Michel Besserve: thanks alot . they seems to be helpful. Thanks
9 Looking for a suitable error correcting code.
· VTT Technical Research Centre of Finland
Boris Assanovich · Yanka Kupala State University of Grodno
It's really nontrivial case to correct so great percent of errors. The codes proposed by people (LDPC and Turbo) which are very close to channel capa... [more]
• Question:
Open Which is the optimal coding technique for information source with memory ?
Which is the optimal coding technique for information source with memory ?
· Institut National des Sciences Appliquées de Rennes
7 Huffman Coding
· Institut National des Sciences Appliquées de Rennes