Patents by Inventor Bei Pan

Bei Pan 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: 12314676
    Abstract: Methods and systems are provided for receiving an input query at a Variational-sequence-to-sequence dialog generator (VSDG) of a chatbot, and calculating, via a variational autoencoder (VAE) combined with a generative adversarial network (GAN) of the VSDG, a response to the input query. The response may be in a dialog form. Further, in one or more examples, the GAN evaluates the response for updating the VSDG.
    Type: Grant
    Filed: October 18, 2023
    Date of Patent: May 27, 2025
    Assignee: CAMBIA HEALTH SOLUTIONS, INC.
    Inventors: Weicheng Ma, Kai Cao, Bei Pan, Lin Chen, Xiang Li
  • Publication number: 20240046108
    Abstract: Methods and systems are provided for receiving an input query at a Variational-sequence-to-sequence dialog generator (VSDG) of a chatbot, and calculating, via a variational autoencoder (VAE) combined with a generative adversarial network (GAN) of the VSDG, a response to the input query. The response may be in a dialog form. Further, in one or more examples, the GAN evaluates the response for updating the VSDG.
    Type: Application
    Filed: October 18, 2023
    Publication date: February 8, 2024
    Inventors: Weicheng Ma, Kai Cao, Bei Pan, Lin Chen, Xiang Li
  • Patent number: 11823061
    Abstract: Methods and systems are provided for a natural language processing system comprising a chatbot adapted for dialog generation. In one example, the system may include a combination of a variational autoencoder (VAE) and a generative adversarial network (GAN) for generating natural responses to input queries. The VAE may convert queries into vector embeddings that may then be used by the GAN to continuously update and improve responses provided by the chatbot.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: November 21, 2023
    Assignee: CAMBIA HEALTH SOLUTIONS, INC.
    Inventors: Weicheng Ma, Kai Cao, Bei Pan, Lin Chen, Xiang Li
  • Publication number: 20230085061
    Abstract: Methods and systems are provided for a natural language processing system comprising a chatbot adapted for dialog generation. In one example, the system may include a combination of a variational autoencoder (VAE) and a generative adversarial network (GAN) for generating natural responses to input queries. The VAE may convert queries into vector embeddings that may then be used by the GAN to continuously update and improve responses provided by the chatbot.
    Type: Application
    Filed: October 31, 2022
    Publication date: March 16, 2023
    Inventors: Weicheng Ma, Kai Cao, Bei Pan, Lin Chen, Xiang Li
  • Patent number: 11514330
    Abstract: Methods and systems are provided for a natural language processing system comprising a chatbot adapted for dialog generation. In one example, the system may include a combination of a variational autoencoder (VAE) and a generative adversarial network (GAN) for generating natural responses to input queries. The VAE may convert queries into vector embeddings that may then be used by the GAN to continuously update and improve responses provided by the chatbot.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: November 29, 2022
    Assignee: Cambia Health Solutions, Inc.
    Inventors: Weicheng Ma, Kai Cao, Bei Pan, Lin Chen, Xiang Li
  • Publication number: 20200226475
    Abstract: Methods and systems are provided for a natural language processing system comprising a chatbot adapted for dialog generation. In one example, the system may include a combination of a variational autoencoder (VAE) and a generative adversarial network (GAN) for generating natural responses to input queries. The VAE may convert queries into vector embeddings that may then be used by the GAN to continuously update and improve responses provided by the chatbot.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 16, 2020
    Inventors: Weicheng Ma, Kai Cao, Bei Pan, Lin Chen, Xiang Li
  • Patent number: 9996798
    Abstract: Systems and techniques for enhancing accuracy of traffic prediction include a system of one or more computers operable to receive a request relating to traffic prediction, compare a first prediction error for a first (moving average) traffic prediction model with a second prediction error for a second (historical average) traffic prediction model, calculated using a historical data set selected from previously recorded traffic data in accordance with a day and time associated with the request, select use of the first model or the second model based on the comparison of prediction errors, and provide an output for use in traffic prediction, wherein the output comes from applying the first traffic prediction model when the first prediction error is less than the second prediction error, and the output comes from applying the second traffic prediction model when the first prediction error is not less than the second prediction error.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: June 12, 2018
    Assignee: University of Southern California
    Inventors: Bei Pan, Ugur Demiryurek, Cyrus Shahabi
  • Publication number: 20160189044
    Abstract: Real-time high-fidelity spatiotemporal data on transportation networks can be used to learn about traffic behavior at different times and locations, potentially resulting in major savings in time and fuel. Real-world data collected from transportation networks can be used to incorporate the data's intrinsic behavior into a time-series mining technique to enhance its accuracy for traffic prediction. For example, the spatiotemporal behaviors of rush hours and events can be used to perform a more accurate prediction of both short-term and long-term average speed on road-segments, even in the presence of infrequent events (e.g., accidents). Taking historical rush-hour behavior into account can improve the accuracy of traditional predictors by up to 67% and 78% in short-term and long-term predictions, respectively. Moreover, the impact of an accident can be incorporated to improve the prediction accuracy by up to 91%.
    Type: Application
    Filed: March 9, 2016
    Publication date: June 30, 2016
    Inventors: Bei Pan, Ugur Demiryurek, Cyrus Shahabi
  • Patent number: 9286793
    Abstract: Real-time high-fidelity spatiotemporal data on transportation networks can be used to learn about traffic behavior at different times and locations, potentially resulting in major savings in time and fuel. Real-world data collected from transportation networks can be used to incorporate the data's intrinsic behavior into a time-series mining technique to enhance its accuracy for traffic prediction. For example, the spatiotemporal behaviors of rush hours and events can be used to perform a more accurate prediction of both short-term and long-term average speed on road-segments, even in the presence of infrequent events (e.g., accidents). Taking historical rush-hour behavior into account can improve the accuracy of traditional predictors by up to 67% and 78% in short-term and long-term predictions, respectively. Moreover, the impact of an accident can be incorporated to improve the prediction accuracy by up to 91%.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: March 15, 2016
    Assignee: University of Southern California
    Inventors: Bei Pan, Ugur Demiryurek, Cyrus Shahabi
  • Publication number: 20140114556
    Abstract: Real-time high-fidelity spatiotemporal data on transportation networks can be used to learn about traffic behavior at different times and locations, potentially resulting in major savings in time and fuel. Real-world data collected from transportation networks can be used to incorporate the data's intrinsic behavior into a time-series mining technique to enhance its accuracy for traffic prediction. For example, the spatiotemporal behaviors of rush hours and events can be used to perform a more accurate prediction of both short-term and long-term average speed on road-segments, even in the presence of infrequent events (e.g., accidents). Taking historical rush-hour behavior into account can improve the accuracy of traditional predictors by up to 67% and 78% in short-term and long-term predictions, respectively. Moreover, the impact of an accident can be incorporated to improve the prediction accuracy by up to 91%.
    Type: Application
    Filed: October 22, 2013
    Publication date: April 24, 2014
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Bei Pan, Ugur Demiryurek, Cyrus Shahabi