Method for determining the distribution of constituent subpopulations within a population of particles having overlapping subpopulations
US5349538A · kind A · utility
1Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1993 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Feb 12, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1488
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for determining the parameters (i.e., proportion, mean, and standard deviation) of constituent subpopulations within a sample population of particles which contains overlapping populations. The invention includes the use of the EM algorithm, an iterative process which estimates the probability that a particle belongs to any given overlapping subpopulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.