Detection of pathogenic microorganisms using fused sensor data
First Claim
1. A method comprising:
- a) providing a library having a plurality of sublibraries, wherein each said sublibrary contains a plurality of reference data sets generated by at least one of a corresponding one of a plurality of spectroscopic data generating instruments associated with said sublibrary, and wherein each reference data set characterizes a corresponding known pathogenic microorganism;
b) obtaining a plurality of test data sets characteristic of an unknown material, wherein each test data set is generated by at least one of the plurality of spectroscopic data generating instruments;
c) instructing a processor to perform the following;
d) for each test data set, searching each sublibrary associated with the spectroscopic data generating instrument used to generate said test data set, to thereby produce a corresponding set of scores for each searched sublibrary, wherein each score in said set of scores indicates a likelihood of a match between a corresponding one of said plurality of reference data sets in said searched sublibrary and said test data set;
e calculating a set of relative probability values for each searched sublibrary based on the corresponding set of scores for each searched sublibrary; and
f fusing all relative probability values using Bayesian fusion to thereby produce a set of final probability values to be used in determining whether said unknown material is represented through a corresponding known pathogenic microorganism characterized in the library.
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Abstract
A system and method to search spectral databases to identify unknown materials, specifically pathogenic microorganisms. A library is provided, having sublibraries containing reference data sets of known materials and test data sets, both generated by at least one spectroscopic data generating instrument. For each test data set, each sublibrary associated with the instrument used is searched. A set of scores for each searched sublibrary is produced, representing the likelihood of a match between the reference data set and test data set. Relative probability values are calculated for each searched sublibrary. All relative probability values are fused producing a set of final probability values, used in determining whether the unknown material is represented through a known material in the library. The known material represented in the libraries having the highest final probability value is reported, if the highest final probability value is greater than or equal to the minimum confidence value.
33 Citations
29 Claims
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1. A method comprising:
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a) providing a library having a plurality of sublibraries, wherein each said sublibrary contains a plurality of reference data sets generated by at least one of a corresponding one of a plurality of spectroscopic data generating instruments associated with said sublibrary, and wherein each reference data set characterizes a corresponding known pathogenic microorganism; b) obtaining a plurality of test data sets characteristic of an unknown material, wherein each test data set is generated by at least one of the plurality of spectroscopic data generating instruments; c) instructing a processor to perform the following; d) for each test data set, searching each sublibrary associated with the spectroscopic data generating instrument used to generate said test data set, to thereby produce a corresponding set of scores for each searched sublibrary, wherein each score in said set of scores indicates a likelihood of a match between a corresponding one of said plurality of reference data sets in said searched sublibrary and said test data set; e calculating a set of relative probability values for each searched sublibrary based on the corresponding set of scores for each searched sublibrary; and f fusing all relative probability values using Bayesian fusion to thereby produce a set of final probability values to be used in determining whether said unknown material is represented through a corresponding known pathogenic microorganism characterized in the library. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification