Patent №
US 11,615,305
Granted
2023-03-28
Filed 2020
Owner
ROYAL BANK OF CANADA
Lab
—
AI components
5
ml · nlp · vision · speech · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
16881768
A variational hyper recurrent neural network (VHRNN) can be trained by, for each step in sequential training data: determining a prior probability distribution for a latent variable from a prior network of the VHRNN using an initial hidden state; determining a hidden state from a recurrent neural network (RNN) of the VHRNN using an observation state, the latent variable and the initial hidden state; determining an approximate posterior probability distribution for the latent variable from an encoder network of the VHRNN using the observation state and the initial hidden state; determining a generating probability distribution for the observation state from a decoder network of the VHRNN using the latent variable and the initial hidden state; and maximizing a variational lower bound of a marginal log-likelihood of the training data. The trained VHRNN can be used to generate sequential data.
AI classification
Ownership
ROYAL BANK OF CANADA
assignment · 615170401
Assignors
DENG, RUIZHI, CAO, YANSHUAI, CHANG, BO, BRUBAKER, MARCUS
On an employer assignment, the assignors are typically the inventors.