Federated queries of clinical data repositories: the sum of the parts does not equal the whole.

CONCLUSIONS: Uncertainty in the overlap of patient populations across hospitals limits the effectiveness of SHRINE and other federated query tools. Our technique reduces this uncertainty while retaining an aggregate federated architecture.
PMID: 23349080 [PubMed - as supplied by publisher]

Source: Journal of the American Medical Informatics Association - January 24, 2013 Category: Information Technology Authors: Weber GM Tags: J Am Med Inform Assoc Source Type: research