This is the code and synthetic data set for our ISMIS 2017 paper. We used the same data set first presented in 
ECAI 2016 paper and subsequently used in our AI 2016 paper. We again include the data set here for ease of use. 
The data set is in the Referral folder. 
Each .mat file decribes a referral networks of 100 experts and 10 topics. 
When you run the code in MATLAB, the results will be stored in the ReferralResults folder. 
The code is compatible with Windows 10 environment running MATLAB 2016b and versions beyond MATLAB 2016b.
