Patents by Inventor George J. Pappas

George J. Pappas 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: 11961283
    Abstract: Methods, systems, and computer readable media for model-based robust deep learning. In some examples, a method includes obtaining a model of natural variation for a machine learning task. The model of natural variation includes a mapping that specifies how an input datum can be naturally varied by a nuisance parameter. The method includes training, using the model of natural variation and training data for the machine learning task, a neural network to complete the machine learning task such that the neural network is robust to natural variation specified by the model of natural variation.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: April 16, 2024
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: George J. Pappas, Hamed Hassani, Alexander Robey
  • Publication number: 20230214661
    Abstract: Supervised operator learning is an emerging machine learning paradigm with applications to modeling the evolution maps of spatio-temporal dynamical systems and approximating general black-box relationships between functional data. We propose a novel operator learning method, LOCA (Learning Operators with Coupled Attention), motivated from the attention mechanism. The input functions are mapped to a finite set of features which are then averaged with attention weights that depend on the output query locations. By coupling these attention weights together with an integral transform, LOCA is able to explicitly learn correlations in the target output functions, enabling us to approximate nonlinear operators even when the number of output function measurements is very small.
    Type: Application
    Filed: January 3, 2023
    Publication date: July 6, 2023
    Inventors: Paris Georgios Perdikaris, George J. Pappas, Jacob Hugh Seidman, Georgios Kissas
  • Publication number: 20220101627
    Abstract: Methods, systems, and computer readable media for model-based robust deep learning. In some examples, a method includes obtaining a model of natural variation for a machine learning task. The model of natural variation includes a mapping that specifies how an input datum can be naturally varied by a nuisance parameter. The method includes training, using the model of natural variation and training data for the machine learning task, a neural network to complete the machine learning task such that the neural network is robust to natural variation specified by the model of natural variation.
    Type: Application
    Filed: June 3, 2021
    Publication date: March 31, 2022
    Inventors: George J. Pappas, Hamed Hassani, Alexander Robey
  • Patent number: 11187536
    Abstract: A method for simultaneous location and mapping (SLAM) includes receiving, by at least one processor, a set of sensor measurements from a movement sensor of a mobile robot and a set of images captured by a camera on the mobile robot as the mobile robot traverses an environment. The method includes, for each image of at least a subset of the set of images, extracting, by the at least one processor, a plurality of detected objects from the image. The method includes estimating, by the at least one processor, a trajectory of the mobile robot and a respective semantic label and position of each detected object within the environment using the sensor measurements and an expectation maximization (EM) algorithm.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: November 30, 2021
    Assignee: THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
    Inventors: Konstantinos Daniilidis, George J. Pappas, Sean Laurence Bowman, Nikolay Asenov Atanasov
  • Publication number: 20190219401
    Abstract: A method for simultaneous location and mapping (SLAM) includes receiving, by at least one processor, a set of sensor measurements from a movement sensor of a mobile robot and a set of images captured by a camera on the mobile robot as the mobile robot traverses an environment. The method includes, for each image of at least a subset of the set of images, extracting, by the at least one processor, a plurality of detected objects from the image. The method includes estimating, by the at least one processor, a trajectory of the mobile robot and a respective semantic label and position of each detected object within the environment using the sensor measurements and an expectation maximization (EM) algorithm.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 18, 2019
    Inventors: Konstantinos Daniilidis, George J. Pappas, Sean Laurence Bowman, Nikolay Asenov Atanasov
  • Patent number: 4123161
    Abstract: Light is examined utilizing a wide slit and a dispersion means such as a prism to produce two pairs of diverging beams separated by an intermediate converging beam of white light. The light emerging from the dispersion means impinges upon a narrow slit situated between the dispersion means and a point at which the intermediate beam of white light converges. In a monochrometer, the first pair of diverging beams comprise red and yellow rays and emanate from one side of the dispersion means and the second pair of diverging beams comprises blue and violet rays and emanate from the other side of the dispersion means. A narrow slit located between the dispersion means and a point at which the intermediate white beam converges passes rays of a single color, either red, yellow, blue or violet, to a second dispersion means and light emerging from the second dispersion means impinges upon a means for measuring the dispersion of rays passing through the narrow slit with respect to a reference point.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: October 31, 1978
    Inventor: George J. Pappas