Patents by Inventor Christopher John Rozell

Christopher John Rozell 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).

  • Publication number: 20230229946
    Abstract: Methods, non-transitory computer readable media, and causal explanation computing apparatus that assists with generating and providing causal explanation of artificial intelligence models includes obtaining a dataset as an input for an artificial intelligence model, wherein the obtained dataset is filtered to a disentangled low-dimensional representation. Next, a plurality of first factors from the disentangled low-dimensional representation of the obtained data that affect an output of the artificial intelligence model is identified. Further, a generative mapping from the disentangled low-dimensional representation between the identified plurality of first factors and the output of the artificial intelligence model, using causal reasoning is determined. An explanation data is generated using the determined generative mapping, wherein the generated explanation data provides a description of an operation leading to the output of the artificial intelligence model using the identified plurality of first factors.
    Type: Application
    Filed: June 24, 2021
    Publication date: July 20, 2023
    Inventors: Matthew O'Shaughnessy, Gregory Canal, Marissa Connor, Mark Davenport, Christopher John Rozell
  • Publication number: 20220129709
    Abstract: Systems and methods for preference and similarity learning arc disclosed. The systems and methods improve efficiency for both searching datasets and embedding objects within the datasets. The systems and methods for preference embedding include identifying paired comparisons closest to a user's true preference point. The processes include removing obvious paired comparisons and/or ambiguous paired comparisons from subsequent queries The systems and methods for similarity learning include providing larger rank orderings of tuples to increase the context of the information in a dataset In each embodiment, the systems and methods can embed user responses in a Euclidean space such that distances between objects are indicative of user preference or similarity.
    Type: Application
    Filed: February 3, 2020
    Publication date: April 28, 2022
    Inventors: Gregory Canal, Christopher John Rozell, Stefano Fenu, Mark Davenport
  • Patent number: 11188737
    Abstract: A system including a processor, and memory having stored thereon instructions that, when executed by the processor, control the processor to receive image data of a sequence of images, and a current image of the sequence of images being after a previous image in the sequence of images, each of the current and previous images including a cell, filter the current image to remove noise, iteratively deconvolve the filtered current image to identify edges of the cell within the current image based on determined edges of the cell within the previous image, and segment the deconvolved current image to determine edges of the cell within the current image.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: November 30, 2021
    Assignee: Georgia Tech Research Corporaton
    Inventors: John Lee, Christopher John Rozell
  • Publication number: 20200279092
    Abstract: A system including a processor, and memory having stored thereon instructions that, when executed by the processor, control the processor to receive image data of a sequence of images, and a current image of the sequence of images being after a previous image in the sequence of images, each of the current and previous images including a cell, filter the current image to remove noise, iteratively deconvolve the filtered current image to identify edges of the cell within the current image based on determined edges of the cell within the previous image, and segment the deconvolved current image to determine edges of the cell within the current image.
    Type: Application
    Filed: May 14, 2020
    Publication date: September 3, 2020
    Inventors: John Lee, Christopher John Rozell
  • Patent number: 10733419
    Abstract: A system including: at least one processor; and at least one memory having stored thereon instructions that, when executed by the at least one processor, control the at least one processor to: receive image data of a sequence of images, and a current image of the sequence of images being after a previous image in the sequence of images, each of the current and previous images including a cell; filter the current image to remove noise; iteratively deconvolve the filtered current image to identify edges of the cell within the current image based on determined edges of the cell within the previous image; and segment the deconvolved current image to determine edges of the cell within the current image.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: August 4, 2020
    Assignee: Georgia Tech Research Corporation
    Inventors: John Lee, Christopher John Rozell
  • Publication number: 20190065818
    Abstract: A system including: at least one processor; and at least one memory having stored thereon instructions that, when executed by the at least one processor, control the at least one processor to: receive image data of a sequence of images, and a current image of the sequence of images being after a previous image in the sequence of images, each of the current and previous images including a cell; filter the current image to remove noise; iteratively deconvolve the filtered current image to identify edges of the cell within the current image based on determined edges of the cell within the previous image; and segment the deconvolved current image to determine edges of the cell within the current image.
    Type: Application
    Filed: August 29, 2018
    Publication date: February 28, 2019
    Inventors: John Lee, Christopher John Rozell
  • Patent number: 8045152
    Abstract: A composition comprising a nanoparticle and at least one adsorbate associated with the nanoparticle, wherein the adsorbate displays at least one chemically responsive optical property. A method comprising associating an adsorbate with a nanoparticle, wherein the nanoparticle comprises a shell surrounding a core material with a lower conductivity than the shell material and the adsorbate displays at least one chemically responsive optical property, and engineering the nanoparticle to enhance the optical property of the adsorbate. A method comprising determining an optical response of an adsorbate associated with a nanoparticle as a function of a chemical parameter, and parameterizing the optical response to produce a one-dimensional representation of at least a portion of a spectral window of the optical response in a high dimensional vector space.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: October 25, 2011
    Assignee: William Marsh Rice University
    Inventors: Nancy J. Halas, Don H. Johnson, Sandra Whaley Bishnoi, Carly S. Levin, Christopher John Rozell, Bruce R. Johnson
  • Patent number: 7783459
    Abstract: A parallel dynamical system for computing sparse representations of data, i.e., where the data can be fully represented in terms of a small number of non-zero code elements, and for reconstructing compressively sensed images. The system is based on the principles of thresholding and local competition that solves a family of sparse approximation problems corresponding to various sparsity metrics. The system utilizes Locally Competitive Algorithms (LCAs), nodes in a population continually compete with neighboring units using (usually one-way) lateral inhibition to calculate coefficients representing an input in an over complete dictionary.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: August 24, 2010
    Assignee: William Marsh Rice University
    Inventors: Christopher John Rozell, Don Herrick Johnson, Richard Gordon Baraniuk, Bruno A. Olshausen, Robert Lowell Ortman
  • Publication number: 20080270055
    Abstract: A parallel dynamical system for computing sparse representations of data, i.e., where the data can be fully represented in terms of a small number of non-zero code elements, and for reconstructing compressively sensed images. The system is based on the principles of thresholding and local competition that solves a family of sparse approximation problems corresponding to various sparsity metrics. The system utilizes Locally Competitive Algorithms (LCAs), nodes in a population continually compete with neighboring units using (usually one-way) lateral inhibition to calculate coefficients representing an input in an over complete dictionary.
    Type: Application
    Filed: February 21, 2008
    Publication date: October 30, 2008
    Inventors: Christopher John Rozell, Don Herrick Johnson, Richard Gordon Baraniuk, Bruno A. Olshausen, Robert Lowell Ortman
  • Publication number: 20080176212
    Abstract: A composition comprising a nanoparticle and at least one adsorbate associated with the nanoparticle, wherein the adsorbate displays at least one chemically responsive optical property. A method comprising associating an adsorbate with a nanoparticle, wherein the nanoparticle comprises a shell surrounding a core material with a lower conductivity than the shell material and the adsorbate displays at least one chemically responsive optical property, and engineering the nanoparticle to enhance the optical property of the adsorbate. A method comprising determining an optical response of an adsorbate associated with a nanoparticle as a function of a chemical parameter, and parameterizing the optical response to produce a one-dimensional representation of at least a portion of a spectral window of the optical response in a high dimensional vector space.
    Type: Application
    Filed: June 13, 2007
    Publication date: July 24, 2008
    Applicant: William Marsh Rice University
    Inventors: Nancy J. Halas, Don H. Johnson, Sandra Whaley Bishnoi, Carly S. Levin, Christopher John Rozell, Bruce R. Johnson