Sparse system identification has received a great deal of attention due to its broad applicability. The proportionate normalized least mean square (PNLMS) algorithm, as a popular tool, achieves excellent performance for sparse system identification. In previous studies, most of the cost functions used in proportionate-type sparse adaptive algorithms are based on the mean square error (MSE) crit...

GeoSentinel is a global surveillance network of travel medicine clinics that collect data from ill international travelers. Analyses have relied on proportionate morbidity calculations, but proportionate morbidity cannot estimate disease risk because healthy travelers are not included in the denominator. The authors evaluated the use of a case-control design, controlling for GeoSentinel site an...

This paper investigates the problem of implementing proportionate-type LMS family of algorithms in hardware for sparse adaptive filtering applications especially the network echo cancelation. We derive a re-formulated proportionate type algorithm through algorithm-architecture co-design methodology that can be pipelined and has an efficient architecture for hardware implementation. We study the...

1. Introduction For the statistical analysis of business growth the essay of Simon and Bonini (1958) and the posterior book of Ijiri and Simon (1977) represent classical references. In Bonini and Simon's essay two passages are particularly relevant: " … by introducing some simple variations into the assumptions of the stochastic model [of firm size]-but retaining the law of proportionate effect...

The conditions that are generally considered to justify the use of the proportionate mortality ratio (PMR) to compare exposed and nonexposed populations also permit the computation of the ratio of mortality odds between the cause (of death) of interest and the "other" causes considered. This mortality odds ratio (MOR) comparing the exposed with the nonexposed equals the exposure odds ratio comp...

r Since the turn of the century, formaldehyde has been the main preservative in commercial embalming fluids (1). In an industrial hygiene survey of a mortuary science college conducted by the National Institute for Occupational Safety and Health, the airborne formaldehyde concentrations exceeded 3.0 ppm in two samples when the ventilation system was closed and dropped to 0.20-0.91 ppm when the ...