APPLYING NON-LINEAR TRANSFORMATION OF FEATURE VALUES FOR TRAINING A CLASSIFIER
First Claim
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1. A method comprising:
- receiving a collection of labeled training cases, wherein each of the labeled training cases has at least one original feature and a label with respect to at least one class;
applying, by a computer using an algorithm, non-linear transformation on values of the original feature in the training cases to produce transformed feature values that are more linearly related to the class than the original feature values, wherein the non-linear transformation is based on computing probabilities of the training cases that are positive with respect to the at least one class; and
using, by the computer, the transformed feature values to train a classifier.
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Abstract
A collection of labeled training cases is received, where each of the labeled training cases has at least one original feature and a label with respect to at least one class. Non-linear transformation of values of the original feature in the training cases is applied to produce transformed feature values that are more linearly related to the class than the original feature values. The non-linear transformation is based on computing probabilities of the training cases that are positive with respect to the at least one class. The transformed feature values are used to train a classifier.
28 Citations
20 Claims
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1. A method comprising:
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receiving a collection of labeled training cases, wherein each of the labeled training cases has at least one original feature and a label with respect to at least one class; applying, by a computer using an algorithm, non-linear transformation on values of the original feature in the training cases to produce transformed feature values that are more linearly related to the class than the original feature values, wherein the non-linear transformation is based on computing probabilities of the training cases that are positive with respect to the at least one class; and using, by the computer, the transformed feature values to train a classifier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A computer comprising:
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a storage media to store labeled training cases that are labeled with respect to at least one class; and a processor to; construct mapping functions that are learned from the labeled training cases; use the mapping functions to apply corresponding non-linear transformations of original features in the training cases to produce transformed feature values from values of the original features; and use the transformed feature values to train a classifier. - View Dependent Claims (16, 17, 18, 19)
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20. An article comprising at least one computer readable storage medium containing instructions that upon execution cause a computer to:
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receive a collection of labeled training cases, wherein each of the labeled training cases has at least one original feature and a label with respect to at least one class; construct a non-linear transformation based on the labeled training cases; apply the non-linear transformation on values of the original feature in the training cases to produce transformed feature values that are more linearly related to the class than the original feature values; and use the transformed feature values to train a classifier.
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Specification