Guessing under source uncertainty

This paper considers the problem of guessing the realization of a finite alphabet source when some side information is provided. The only knowledge the guesser has about the source and the correlated side information is that the joint source is one among a family. A notion of redundancy is first defined and a new divergence quantity that measures this redundancy is identified. This divergence quantity shares the Pythagorean property with the Kullback

• Type: Journal
• Year: 2006
• Where: CORR
• Authors: Rajesh Sundaresan
• Keywords: CORR 2006, Divergence Quantity, Education, Finite Alphabet Source, Kullback­Leibler Divergence