Fundamental Limits of Database Alignment

05/10/2018
by   Daniel Cullina, et al.
0

We consider the problem of aligning a pair of databases with correlated entries. We introduce a new measure of correlation in a joint distribution that we call cycle mutual information. This measure has operational significance: it determines whether exact recovery of the correspondence between database entries is possible for any algorithm. Additionally, there is an efficient algorithm for database alignment that achieves this information theoretic threshold.

READ FULL TEXT

Please sign up or login with your details

Forgot password? Click here to reset