September’s talk is here at Sydney and will touch on some group-theoretic applications in statistics. Details are below. Cheers, Michael ====== Date: Wednesday, 30 September 2015 Time: 6:00pm - 6:30pm: Refreshments 6:30pm - 7:30pm: Lecture 7:45pm - onward: Dinner Venue: Norman Gregg Lecture Theatre, Edward Ford Building, University of Sydney. Professor Matthew Roughan University of Adelaide Abstract Algebras and the Record Linkage Problem Record Linkage is the process of finding matching records in one or more databases when they lack a common key. When the data contain errors, a common approach is modelling the probability of pairwise matches, and then choosing only the high-probability links. However, that ignores the larger scale structure of the problem which may be important for some problems, particularly those involving many datasets. In this talk, I will discuss some initial ideas related to using the entire graph of matching data, in particular the use of algebraic operators from group theory on the problem. Biography of Prof. Matthew Roughan Prof. Matthew Roughan has worked in the School of Mathematical Sciences at the University of Adelaide since 2004. His research interests range from stochastic modelling to measurement and management of networks like the Internet, but more recently have been branching out into other types of network.