Patents by Inventor Harsh Pramodbhai PUROHIT

Harsh Pramodbhai PUROHIT 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).

  • Patent number: 11381470
    Abstract: The hyperparameter management device of the present invention includes a compression network to dimensionally compress data to produce a low dimensional representation, an estimation network to estimate a density distribution of the low dimensional representation and a hyperparameter calculation unit to calculate hyperparameters for the compression network and the estimation network, wherein the hyperparameter calculation unit calculates, based on a set of subject data and a set of uniform data, a gap statistic using a gap statistic calculation technique, and calculates, using a curve fitting technique, an estimation network hyperparameter based on at least the gap statistic, calculates a ratio of variance of principal components of the set of subject data, and calculates, using a curve fitting technique, a compression network hyperparameter based on at least the ratio of variance, and sets the estimation network hyperparameter in the estimation network and sets the compression network hyperparameter in the c
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: July 5, 2022
    Assignee: HITACHI, LTD.
    Inventors: Harsh Pramodbhai Purohit, Takashi Endo, Yohei Kawaguchi
  • Publication number: 20220208184
    Abstract: An anomaly detection apparatus includes a device identification database that stores device identification information for identifying a specific device for each type of a device, a hierarchical conditional vector generation unit that generates a hierarchical conditional vector based on the device identification information, an extraction unit that extracts a target device feature amount vector indicating a feature amount of an acoustic signal acquired from a target device by analyzing the acoustic signal, a hierarchical condition adversarial neural network that outputs background noise level information indicating a background noise level of a surrounding environment of the target device and true/false determination information indicating true/false of the target device feature amount vector by analyzing the hierarchical conditional vector and the target device feature amount vector, and an anomaly determination unit that determines whether an anomaly exists in the target device feature amount vector.
    Type: Application
    Filed: September 8, 2021
    Publication date: June 30, 2022
    Applicant: HITACHI, LTD.
    Inventors: Harsh Pramodbhai PUROHIT, Takashi ENDO, Yohei KAWAGUCHI
  • Publication number: 20200389364
    Abstract: The hyperparameter management device of the present invention includes a compression network to dimensionally compress data to produce a low dimensional representation, an estimation network to estimate a density distribution of the low dimensional representation and a hyperparameter calculation unit to calculate hyperparameters for the compression network and the estimation network, wherein the hyperparameter calculation unit calculates, based on a set of subject data and a set of uniform data, a gap statistic using a gap statistic calculation technique, and calculates, using a curve fitting technique, an estimation network hyperparameter based on at least the gap statistic, calculates a ratio of variance of principal components of the set of subject data, and calculates, using a curve fitting technique, a compression network hyperparameter based on at least the ratio of variance, and sets the estimation network hyperparameter in the estimation network and sets the compression network hyperparameter in the c
    Type: Application
    Filed: March 9, 2020
    Publication date: December 10, 2020
    Inventors: Harsh Pramodbhai PUROHIT, Takashi ENDO, Yohei KAWAGUCHI