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Patent Searching and Data


Title:
LEARNING DEVICE, SEARCH DEVICE, LEARNING METHOD, SEARCH METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/214935
Kind Code:
A1
Abstract:
A learning device having: a feature quantity generation unit which, accepting as input the training data that includes a search query, a first document associated with the search query and a second document not associated with the search query and using model parameters of a neural network, generates first feature quantity vectors, each of which represents the feature of the search query, second feature quantity vectors, each of which represents the feature of the first document, and third feature quantity vectors, each of which represents the feature of the second document; a conversion unit which, when element values satisfy a prescribed condition with regard to each of the first, second, and third feature quantity vectors, clears the element values to 0 so as to convert the first, second, and third feature quantity vectors into first, second, and third feature quantity vectors for learning, respectively; and an update unit for updating the model parameters using the first, second, and third feature quantity vectors for learning.

Inventors:
HASEGAWA TAKU (JP)
NISHIDA KYOSUKE (JP)
KAKU SOICHIRO (JP)
TOMITA JUNJI (JP)
Application Number:
PCT/JP2020/017461
Publication Date:
October 28, 2021
Filing Date:
April 23, 2020
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06F16/31
Foreign References:
JP2019101993A2019-06-24
JP2018032232A2018-03-01
JP2019053645A2019-04-04
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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