Comparative analysis of a sample relative to a database

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Quality evaluation

Reexamination Certificate

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Reexamination Certificate

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07734436

ABSTRACT:
The comparative analysis of a sample, derived from a product, with respect to a database comprises the step of determining the class membership of the different characteristics (variables) describing the samples: whether they are characteristics common to the sample under test and the database, they are characteristics particular to the sample under test, or they are characteristics particular to the database. The assignment of the variables to these classes enables parameters to be defined for global comparison of the sample under test and the database, based on: ratios summarizing the values taken by the variables of the different classes, or the distribution of the variables of the different classes. A machine implementation of the analysis is described.

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Mayfield, H.T.: “Application of Chemometrics to the Classification of Orange Essence Oil Varieties by GLC”, Journal of High Resolution Chromatography & Chromatography Communications, vol. 9, No. 2, Feb. 1986, pp. 78-83.
Gardner, J.W., et al: “Application of an Electronic Nose to the Discrimination of Coffees,” Sensors and Actuators B, Elsevier Sequoia S.A., Lausanne, CH, vol. 6, 1992, pp. 71-75.

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