Acknowledgements
Table III.12: Experiment on finding rare drug side-effects.
['Drug', 'Kappa', 'Model NDCG Scores Frequency', 'Model NDCG Scores CRF']
Ch4S3SS4SSSx3 Ch4S4SS1SSSx2 -Ch5S3SS1SSSx4 Ch5S3SS1SSSx7 -Ch5S3SS2SSSx3 Ch5S3SS2SSSx6 Ch5S3SS3SSSx4 Ch5S3SS3SSSx5 Ch5S4SS2SSSx2 -Ch5S4SS3SSSx3 -Ch5T13 The baseline here is to rank side-effects by frequency i.e. how often are they reported in the postings of different users on the given drug. The strength of Kappa is considered “moderate” (but significant), which depicts the difficulty in identifying the side-effects of a drug just by looking at user postings in a community. The baseline performs very poorly for the anti-depressant Alprazolam, as the users suffering from anxiety disorders report a large number of side-effects most of which are not credible. The CRF model performs perfectly for both drugs.