Patents by Inventor Zachary T. Cox

Zachary T. Cox 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: 8849729
    Abstract: Methods and systems are described for simplifying a causal influence model that describes influence of parent nodes Xi (i=1, . . . , n) on possible states of the child node Y. The child node Y and each one of the parent nodes Xi (i=1, . . . , n) are assumed to be either a discrete Boolean node having states true and false, a discrete Ordinal node having a plurality of ordered states; and a Categorical node having a plurality of unordered states. The influence of each parent node Xi on the child node Y is assumed to be a promoting influence and an inhibiting influence. User interfaces are described that incorporate these specific node types.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: September 30, 2014
    Assignee: Charles River Analytics, Inc.
    Inventors: Zachary T. Cox, Jonathan Pfautz, David Koelle, Geoffrey Catto, Joseph Campolongo
  • Patent number: 8510246
    Abstract: A system for computing probabilities of variables in a belief network includes a data acquisition interface configured to receive data representative of the belief network. The system further includes a partial evaluator configured to carry out a partial evaluation algorithm that determines the probability calculations that must be performed on the received data in order to compute the probabilities of the variables in the belief network. The system further includes a source code generator configured to output the probability calculations as a source code in a programming language.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: August 13, 2013
    Assignee: Charles River Analytics, Inc.
    Inventor: Zachary T. Cox
  • Patent number: 8170977
    Abstract: An apparatus for making probabilistic inferences based on a belief network includes a processing system configured to receive as input one or more parameters of a causal influence model. The belief network has a child node Y and one or more parent nodes Xi (i=1, . . . , n) for the child node Y. The causal influence model describes the influence of the parent nodes Xi on possible states of the child node Y. The processing system is further configured to use a creation function to convert the parameters of the causal influence model into one or more entries of a conditional probability table. The conditional probability table provides a probability distribution for all the possible states of the child node Y, for each combination of possible states of the parent nodes Xi.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: May 1, 2012
    Assignee: Charles River Analytics, Inc.
    Inventors: Zachary T. Cox, Jonathan Pfautz, David Koelle, Geoffrey Catto, Joseph Campolongo
  • Publication number: 20120084239
    Abstract: Methods and systems are described for simplifying a causal influence model that describes influence of parent nodes Xi (i=1, . . . , n) on possible states of the child node Y. The child node Y and each one of the parent nodes Xi (i=1, . . . , n) are assumed to be either a discrete Boolean node having states true and false, a discrete Ordinal node having a plurality of ordered states; and a Categorical node having a plurality of unordered states. The influence of each parent node Xi on the child node Y is assumed to be a promoting influence and an inhibiting influence. User interfaces are described that incorporate these specific node types.
    Type: Application
    Filed: December 13, 2011
    Publication date: April 5, 2012
    Applicant: Charles River Analytics, Inc.
    Inventors: Zachary T. Cox, Jonathan Pfautz, David Koelle, Geoffrey Catto, Joseph Campolongo
  • Patent number: 8078566
    Abstract: Methods and systems are described for simplifying a causal influence model that describes influence of parent nodes Xi (i=1, . . . , n) on possible states of the child node Y. The child node Y and each one of the parent nodes Xi (i=1, . . . , n) are assumed to be either a discrete Boolean node having states true and false, a discrete Ordinal node having a plurality of ordered states; and a Categorical node having a plurality of unordered states. The influence of each parent node Xi on the child node Y is assumed to be a promoting influence and an inhibiting influence. User interfaces are described that incorporate these specific node types.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: December 13, 2011
    Assignee: Charles River Analytics, Inc.
    Inventors: Zachary T. Cox, Jonathan Pfautz, David Koelle, Geoffrey Catto, Joseph Campolongo
  • Publication number: 20110276532
    Abstract: A system for computing probabilities of variables in a belief network includes a data acquisition interface configured to receive data representative of the belief network. The system further includes a partial evaluator configured to carry out a partial evaluation algorithm that determines the probability calculations that must be performed on the received data in order to compute the probabilities of the variables in the belief network. The system further includes a source code generator configured to output the probability calculations as a source code in a programming language.
    Type: Application
    Filed: June 15, 2011
    Publication date: November 10, 2011
    Inventor: Zachary T. Cox
  • Patent number: 7984002
    Abstract: A system for computing probabilities of variables in a belief network includes a data acquisition interface configured to receive data representative of the belief network. The system further includes a partial evaluator configured to carry out a partial evaluation algorithm that determines the probability calculations that must be performed on the received data in order to compute the probabilities of the variables in the belief network. The system further includes a source code generator configured to output the probability calculations as a source code in a programming language.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: July 19, 2011
    Assignee: Charles River Analytics, Inc.
    Inventor: Zachary T. Cox
  • Patent number: 7536372
    Abstract: An application for developing and using a model of a Bayesian Network to compute beliefs. The application provides an interface through which a user may specify the construction of the Bayseian Network, such as by specifying nodes in the network, parameters associated with the nodes, conditional probability distributions associated with the parameters or evidence that a parameter has a particular value. The application builds an inference engine based on user input specifying the construction of the Bayesian Network and uses it to compute beliefs. The application provides a user interface through which a user may specify the construction of the Bayesian Network and automatically updates an output reflecting beliefs. The input and output information may be available to the user simultaneously without switching operating modes of the application.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: May 19, 2009
    Assignee: Charles River Analytics, Inc.
    Inventors: Zachary T. Cox, Jonathan D. Pfautz
  • Publication number: 20090006305
    Abstract: Methods and systems are described for simplifying a causal influence model that describes influence of parent nodes Xi (i=1, . . . , n) on possible states of the child node Y. The child node Y and each one of the parent nodes Xi (i=1, . . . , n) are assumed to be either a discrete Boolean node having states true and false, a discrete Ordinal node having a plurality of ordered states; and a Categorical node having a plurality of unordered states. The influence of each parent node Xi on the child node Y is assumed to be a promoting influence and an inhibiting influence. User interfaces are described that incorporate these specific node types.
    Type: Application
    Filed: January 30, 2008
    Publication date: January 1, 2009
    Inventors: Zachary T. Cox, Jonathan Pfautz, David Koelle, Geoffrey Catto, Joseph Campolongo
  • Publication number: 20080177679
    Abstract: An apparatus for making probabilistic inferences based on a belief network includes a processing system configured to receive as input one or more parameters of a causal influence model. The belief network has a child node Y and one or more parent nodes Xi (i=1, . . . , n) for the child node Y. The causal influence model describes the influence of the parent nodes Xi on possible states of the child node Y. The processing system is further configured to use a creation function to convert the parameters of the causal influence model into one or more entries of a conditional probability table. The conditional probability table provides a probability distribution for all the possible states of the child node Y, for each combination of possible states of the parent nodes Xi.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 24, 2008
    Applicant: Charles River Analytics, Inc.
    Inventors: Zachary T. Cox, Jonathan Pfautz, David Koelle, Geoffrey Catto, Joseph Campolongo