TY - JOUR AU - Najmi, AH AU - Magruder, SF PY - 2004 DA - 2004/03/15 TI - Estimation of hospital emergency room data using otc pharmaceutical sales and least mean square filters JO - BMC Medical Informatics and Decision Making SP - 5 VL - 4 IS - 1 AB - Surveillance of Over-the-Counter pharmaceutical (OTC) sales as a potential early indicator of developing public health conditions, in particular in cases of interest to Bioterrorism, has been suggested in the literature. The data streams of interest are quite non-stationary and we address this problem from the viewpoint of linear adaptive filter theory: the clinical data is the primary channel which is to be estimated from the OTC data that form the reference channels. SN - 1472-6947 UR - https://doi.org/10.1186/1472-6947-4-5 DO - 10.1186/1472-6947-4-5 ID - Najmi2004 ER -