Patents by Inventor Chetan GUPTA

Chetan GUPTA 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: 11031009
    Abstract: Example implementations involve a framework for knowledge base construction of components and problems in short texts. The framework extracts domain-specific components and problems from textual corpora such as service manuals, repair records, and public Q/A forums using: 1) domain-specific syntactic rules leveraging part of speech tagging (POS), and 2) a neural attention-based seq2seq model which tags raw sentences end-to-end identifying components and their associated problems. Once acquired, this knowledge can be leveraged to accelerate the development and deployment of intelligent conversational assistants for various industrial AI scenarios (e.g., repair recommendation, operations, and so on) through better understanding of user utterances. The example implementations give better tagging accuracy on various datasets outperforming well known off-the-shelf systems.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: June 8, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Walid Shalaby, Chetan Gupta, Maria Teresa Gonzalez Diaz, Adriano Arantes
  • Publication number: 20210148791
    Abstract: Example implementations described herein involve systems and methods for conducting feature extraction on a plurality of templates associated with vibration sensor data for a moving equipment configured to conduct a plurality of tasks, to generate a predictive maintenance model for the plurality of tasks, the predictive maintenance model configured to provide one or more of fault detection, failure prediction, and remaining useful life (RUL) estimation.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 20, 2021
    Inventors: Wei HUANG, Chetan GUPTA, Ahmed Khairy FARAHAT
  • Publication number: 20210086361
    Abstract: Example implementations described herein involve an anomaly detection method for robotic apparatuses such as robotic arms using vibration data. Such example implementations can involve fluctuation-based anomaly detection (e.g., based on their fluctuations in the vibration measurements) and/or frequency spectrum-based anomaly detection (e.g., based on their natural fluctuations in the vibration measurements).
    Type: Application
    Filed: September 19, 2019
    Publication date: March 25, 2021
    Inventors: Wei HUANG, Hideaki SUZUKI, Ahmed Khairy FARAHAT, Chetan GUPTA
  • Publication number: 20210055719
    Abstract: Example implementations involve a system for Predictive Maintenance using Generative Adversarial Networks for Failure Prediction. Through utilizing three processes concurrently and training them iteratively with data-label pairs, example implementations described herein can thereby generate a more accurate predictive maintenance model than that of the related art. Example implementations further involve shared networks so that the three processes can be trained concurrently while sharing parameters with each other.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 25, 2021
    Inventors: Shuai ZHENG, Ahmed Khairy FARAHAT, Chetan GUPTA
  • Publication number: 20210056484
    Abstract: Example implementations described herein involve methods and systems with one or more machines on a factory floor. Example implementations involve, in response to received orders, determining an initial scheduling policy for internal processes to meet the order and a due date policy for the order; a) executing a simulation involving scheduling decisions and due date quotations based on the initial scheduling policy and the due date policy; b) executing a machine learning process on the simulation results to update the scheduling policy and the due date policy by evaluating the scheduling decisions and the due date quotations according to a scoring function which is common for evaluating the scheduling decisions and evaluating the due date quotations; iteratively executing a) and b) until a finalized scheduling policy and the due date policy is determined; and output the finalized scheduling policy and the due date policy in response to the order.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 25, 2021
    Inventors: Susumu SERITA, Chetan Gupta
  • Publication number: 20210048809
    Abstract: Example implementations described herein involve, for data having incomplete labeling to generate a plurality of predictive maintenance models, processing the data through a multi-task learning (MTL) architecture including generic layers and task specific layers for the plurality of predictive maintenance models configured to conduct tasks to determine outcomes for one or more components associated with the data, each task specific layer corresponding to one of the plurality of predictive maintenance models; the generic layers configured to provide, to the task specific layers, associated data to construct each of the plurality of predictive maintenance models; and executing the predictive maintenance models on subsequently recorded data.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 18, 2021
    Inventors: Chi ZHANG, Ahmed Khairy FARAHAT, Chetan GUPTA, Karan AGGARWAL
  • Patent number: 10901832
    Abstract: Example implementations described herein involve a system for maintenance recommendation based on data-driven failure prediction. The example implementations can involve estimating the probability of having a failure event in the near future given sensor measurements and events from the equipment, and then alerts the system user or maintenance staff if the probability of failure exceeds a certain threshold. The example implementations utilize historical failure cases along with the associated sensor measurements and events to learn a group of classification models that differentiate between failure and non-failure cases. In example implementations, the system then chooses the optimal model for failure prediction such that the overall cost of the maintenance process is minimized.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: January 26, 2021
    Assignee: HITACHI, LTD.
    Inventors: Ahmed Khairy Farahat, Chetan Gupta, Kosta Ristovski
  • Publication number: 20200387387
    Abstract: Example implementations described herein are directed to a meta-data processing system that supports the creation and deployment of the Analytical Solution Modules in development of industrial analytics. The example implementations described herein can involve a first system configured to be directed to a data scientist for receiving flow and operator definitions to generate an analytics library, which is provided to a second system configured to be directed to a domain expert for applying the analytics library to generate analytics modules to be executed on data input to the second system.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 10, 2020
    Inventors: Koichiro IIJIMA, Song WANG, Hideki NAKAMURA, Chetan GUPTA
  • Publication number: 20200387135
    Abstract: Example implementations involve fault detection and isolation in industrial networks through defining a component as a combination of measurements and parameters and define an industrial network as a set of components connected with different degrees of connections (weights). Faults in industrial network are defined as unpermitted changes in component parameters. Further, the fault detection and isolation in industrial networks are formulated as a node classification problem in graph theory. Example implementations detect and isolate faults in industrial networks through 1) uploading/learning network structure, 2) detecting component communities in the network, 3) extracting features for each community, 4) using the extracted features for each community to detect and isolate faults, 5) at each time step, based on the faulty components provide maintenance recommendation for the network.
    Type: Application
    Filed: June 6, 2019
    Publication date: December 10, 2020
    Inventors: Hamed KHORASGANI, Chetan GUPTA, Ahmed Khairy FARAHAT, Arman HASANZADEHMOGHIMI
  • Publication number: 20200380388
    Abstract: Example implementations described herein are directed to constructing prediction models and conducting predictive maintenance for systems that provide sparse sensor data. Even if only sparse measurements of sensor data are available, example implementations utilize the inference of statistics with functional deep networks to model prediction for the systems, which provides better accuracy and failure prediction even if only sparse measurements are available.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 3, 2020
    Inventors: Qiyao WANG, Shuai ZHENG, Ahmed FARAHAT, Susumu SERITA, Takashi SAEKI, Chetan GUPTA
  • Publication number: 20200380447
    Abstract: Example implementations described herein involve systems and methods involving a plurality of sensors monitoring one or more processes, the sensors providing sensor data, which can include determining a probability map of the sensor data from a database and a functional relationship between key performance indicators (KPIs) of the one or more processes and the sensor data; executing a search on the probability map to determine constrained and continuous ranges for the sensor data that optimize KPIs for the one or more processes based on the functional relationship; and generating a recommendation for the one or more processes that fit within the constrained and continuous range of the sensor data.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 3, 2020
    Inventors: Qiyao WANG, Haiyan WANG, Susumu SERITA, Takashi SAEKI, Chetan GUPTA
  • Publication number: 20200327886
    Abstract: Example implementations involve a framework for knowledge base construction of components and problems in short texts. The framework extracts domain-specific components and problems from textual corpora such as service manuals, repair records, and public Q/A forums using: 1) domain-specific syntactic rules leveraging part of speech tagging (POS), and 2) a neural attention-based seq2seq model which tags raw sentences end-to-end identifying components and their associated problems. Once acquired, this knowledge can be leveraged to accelerate the development and deployment of intelligent conversational assistants for various industrial AI scenarios (e.g., repair recommendation, operations, and so on) through better understanding of user utterances. The example implementations give better tagging accuracy on various datasets outperforming well known off-the-shelf systems.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 15, 2020
    Inventors: Walid SHALABY, Chetan GUPTA, Maria Teresa GONZALEZ DIAZ, Adriano ARANTES
  • Publication number: 20200294220
    Abstract: Example implementations described herein involve defect analysis for images received from a camera system, which can involve applying a first model configured to determine regions of interest of the object from the images, applying a second model configured to identify localized areas of the object based on the regions of interest on the images; and applying a third model configured to identify defects in the localized ones of the images.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 17, 2020
    Inventors: Maria Teresa GONZALEZ DIAZ, Dipanjan GHOSH, Adriano ARANTES, Michiko YOSHIDA, Jiro HASHIZUME, Chetan GUPTA, Phawis THAMMASORN
  • Publication number: 20200258057
    Abstract: In some examples, a computer system may receive historical repair data for equipment and/or domain knowledge related to the equipment. The system may construct a hierarchical data structure for the equipment including a first hierarchy and a second hierarchy, the first hierarchy including a plurality of equipment nodes corresponding to different equipment types, and the second hierarchy including a plurality of repair category nodes corresponding to different repair categories. The system may generate a plurality of machine learning models corresponding to the plurality of repair category nodes, respectively. When the system receives a repair request associated with the equipment, the system determines a certain one of the equipment nodes associated with the equipment, and based on determining that a certain repair category node is associated with the certain equipment node, uses the machine learning model associated with the certain repair category node to determine one or more repair actions.
    Type: Application
    Filed: October 6, 2017
    Publication date: August 13, 2020
    Inventors: Ahmed Khairy FARAHAT, Chetan GUPTA, Marcos VIEIRA, Susumu SERITA
  • Publication number: 20200241511
    Abstract: Example implementations described herein are directed to a system for manufacturing dispatching using reinforcement learning and transfer learning. The systems and methods described herein can be deployed in factories for manufacturing dispatching for reducing job-due related costs. In particular, example implementations described herein can be used to reduce massive data collection and reduce model training time, which can eventually improve dispatching efficiency and reduce factory cost.
    Type: Application
    Filed: January 30, 2019
    Publication date: July 30, 2020
    Inventors: Shuai ZHENG, Chetan GUPTA, Susumu SERITA
  • Publication number: 20200134574
    Abstract: In some examples, a computer system may receive historical repair data and may extract features from the historical repair data for use as training data. The computer system may determine, from the historical repair data, a repair hierarchy including a plurality of repair levels which includes repair actions as one of the repair levels. Furthermore, the computer system may train the machine learning model, which performs multiple tasks for predicting values of individual levels of the repair hierarchy, by tuning parameters of the machine learning model using the training data.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Inventors: Dipanjan GHOSH, Ahmed Khairy FARAHAT, Chi ZHANG, Marcos VIEIRA, Chetan GUPTA
  • Publication number: 20200097921
    Abstract: In some examples, a computer system may receive historical repair data for first equipment, and may extract features from the historical repair data for the first equipment as training data including one or more of: free-text variables associated with comments related to the first equipment; usage attributes associated with the first equipment; equipment attributes associated with the first equipment; sensor data associated with the first equipment; or event data associated with the first equipment. The system may determine a repair hierarchy including a plurality of repair levels for the equipment. The system may use the training data to train a machine learning model as a multilayer model trained to perform multiple tasks for predicting individual levels of the repair hierarchy. The system may receive a repair request associated with second equipment and uses the machine learning model to determine at least one repair action based on the received repair request.
    Type: Application
    Filed: September 24, 2018
    Publication date: March 26, 2020
    Inventors: Dipanjan GHOSH, Ahmed Khairy FARAHAT, Chi ZHANG, Marcos VIEIRA, Chetan GUPTA
  • Publication number: 20200075027
    Abstract: In some examples, a system may receive from a device, speech sound patterns corresponding to a voice input related to equipment. Further, the system may determine an identity of a person associated with the device, and may identify the equipment related to the voice input. Using at least one of the received speech sound patterns or a text conversion of the speech sound patterns, along with an equipment history of the identified equipment, as input to one or more machine learning models, the system may determine, at least partially, an instruction related to the equipment. Additionally, the system may send, to the device, the instruction related to the equipment as an audio file for playback on the device.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 5, 2020
    Inventors: Adriano Siqueira ARANTES, Marcos VIEIRA, Chetan GUPTA, Ahmed Khairy FARAHAT, Maria Teresa GONZALEZ DIAZ
  • Patent number: 10579042
    Abstract: Example implementations described herein are directed to systems and methods for defect rate analytics to reduce defectiveness in manufacturing. In an example implementation, a method include determining, from data associated with each feature for a manufacturing process, the data feature indicative of process defects detected based on the feature, an estimated condition for the feature that reduces a defect rate of the process defects, the estimated condition indicating the data into a first group and second group; calculating the rate reduction of the defect rate based on a difference in defects between the first group and the second group; for the rate reduction meeting a target confidence level for a target defect rate, applying the estimated condition to the manufacturing process associated with each of the features. In example implementations, the defect rate analytics reduce defectiveness in manufacturing with independent processes and/or dependent processes.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: March 3, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Qiyao Wang, Susumu Serita, Chetan Gupta
  • Publication number: 20200057689
    Abstract: Example implementations described herein involve a system for maintenance recommendation based on data-driven failure prediction. The example implementations can involve estimating the probability of having a failure event in the near future given sensor measurements and events from the equipment, and then alerts the system user or maintenance staff if the probability of failure exceeds a certain threshold. The example implementations utilize historical failure cases along with the associated sensor measurements and events to learn a group of classification models that differentiate between failure and non-failure cases. In example implementations, the system then chooses the optimal model for failure prediction such that the overall cost of the maintenance process is minimized.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 20, 2020
    Inventors: Ahmed Khairy FARAHAT, Chetan GUPTA, Kosta RISTOVSKI