Patents by Inventor David Littau

David Littau 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).

  • Using histograms to introduce randomization in the generation of ensembles of decision trees
    Patent number: 6859804
    Abstract: A system for decision tree ensembles that includes a module to read the data, a module to create a histogram, a module to evaluate a potential split according to some criterion using the histogram, a module to select a split point randomly in an interval around the best split, a module to split the data, and a module to combine multiple decision trees in ensembles. The decision tree method includes the steps of reading the data; creating a histogram; evaluating a potential split according to some criterion using the histogram, selecting a split point randomly in an interval around the best split, splitting the data, and combining multiple decision trees in ensembles.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: February 22, 2005
    Assignee: The Regents of the University of California
    Inventors: Chandrika Kamath, Erick Cantu-Paz, David Littau
  • Using histograms to introduce randomization in the generation of ensembles of decision trees
    Publication number: 20030229641
    Abstract: A system for decision tree ensembles that includes a module to read the data, a module to create a histogram, a module to evaluate a potential split according to some criterion using the histogram, a module to select a split point randomly in an interval around the best split, a module to split the data, and a module to combine multiple decision trees in ensembles. The decision tree method includes the steps of reading the data; creating a histogram; evaluating a potential split according to some criterion using the histogram, selecting a split point randomly in an interval around the best split, splitting the data, and combining multiple decision trees in ensembles.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 11, 2003
    Applicant: The Regents of the University of California
    Inventors: Chandrika Kamath, Erick Cantu-Paz, David Littau