[Forum SIS] Politecnico di Milano - Seminario R. Soyer

[anna.paganoni a polimi.it]

Si avvisa che in data 21-11-2012, alle ore 11:00 precise,
presso Aula Seminari F. Saleri VI Piano MOX -
Dipartimento di Matematica, Politecnico di Milano,
nell'ambito delle iniziative MOX si svolgerà il seguente seminario:

Speaker: Refik Soyer, The George Washington University

Title: Bayesian Methods for Assessment of Health Care Fraud

Abstract: Health care fraud costs a significant amount to the US  
healthcare system. According to FBI the fraud cost to US is about $80  
billion a year. Detection and prevention of fraud are of interest to  
many parties including government, medical community and insurance  
industry. Due to complexities involved in defining fraudulent behavior  
and detecting fraud, the need for more sophisticated data mining tools  
and statistical methods have been recognized in the health care  
industry. As a result, methodologies such as neural networks, decision  
trees, association rules, link analysis and genetic algorithms have  
been used in for fraud detection. However, use of Bayesian methods has  
been quite limited with the exception of some recent work using Bayes  
networks.
In this talk we consider Bayesian methods for fraud detection. In so  
doing, we focus on co-clustering models for analysis of dyadic data  
connecting two entities such as providers and beneficiaries. These  
models can be used to identify billing patterns of potentially  
fraudulent providers who submit a large number of high-dollar claims  
to insurance programs. An important issue pertinent to dyadic data is  
to identify the cluster membership of each entity. We discuss how  
Bayesian inference can be developed for assessment of cluster  
memberships and illustrate what additional insights can be obtained  
from Bayesian analysis of the dyadic data. We consider different forms  
of dyadic data and estimation of cluster sizes and discuss potential  
extensions such as dynamic cluster membership.

Tutti gli interessati sono invitati a partecipare.

Anna Maria Paganoni


-- 
Anna Maria Paganoni
MOX - Dipartimento di Matematica
Politecnico di Milano
Piazza Leonardo da Vinci 32
20133 Milano - Italy
tel: +39 02 2399 4574
fax: +39 02 2399 4568
email: anna.paganoni at polimi.it


----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.