Patents by Inventor Zhao SONG

Zhao SONG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • MODEL ESTIMATION DEVICE, MODEL ESTIMATION METHOD, AND MODEL ESTIMATION PROGRAM
    Publication number: 20200042872
    Abstract: A parameter estimation unit 81 estimates parameters of a neural network model that maximize the lower limit of a log marginal likelihood related to observation value data and hidden layer nodes. A variational probability estimation unit 82 estimates parameters of the variational probability of nodes that maximize the lower limit of the log marginal likelihood. A node deletion determination unit 83 determines nodes to be deleted on the basis of the variational probability of which the parameters have been estimated, and deletes nodes determined to correspond to the nodes to be deleted. A convergence determination unit 84 determines the convergence of the neural network model on the basis of the change in the variational probability.
    Type: Application
    Filed: August 16, 2017
    Publication date: February 6, 2020
    Applicant: NEC CORPORATION
    Inventors: Yusuke MURAOKA, Ryohei FUJIMAKI, Zhao SONG