The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 04, 2025

Filed:

Aug. 23, 2021
Applicant:

Nec Laboratories America, Inc., Princeton, NJ (US);

Inventors:

Cristian Lumezanu, Princeton Junction, NJ (US);

Yuncong Chen, Plainsboro, NJ (US);

Takehiko Mizoguchi, West Windsor, NJ (US);

Dongjin Song, Princeton, NJ (US);

Haifeng Chen, West Windsor, NJ (US);

Jurijs Nazarovs, Madison, WI (US);

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 16/906 (2019.01);
U.S. Cl.
CPC ...
G06F 16/906 (2019.01);
Abstract

A method classifies missing labels. The method computes, using a neural network model trained on training data, rank-based statistics of a feature of a time series segment to attempt to select two candidate labels from the training data that the segment most likely belongs to. The method classifies the segment using k-NN-based classification applied to the training data, responsive to the two candidate labels being present in the training data. The method classifies the segment by hypothesis testing, responsive to only one candidate label being present in the training data. The method classifies the segment into a class with higher values of the rank-based statistics from among a plurality of classes with different values of the rank-based statistics, responsive to no candidate labels being present in the training data. The method corrects a prediction by an applicable one of the classifying steps by majority voting with time windows.


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