Patents by Inventor Charles R. Mathis

Charles R. Mathis 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: 7188117
    Abstract: Systems and methods for determining the authoritativeness of a document based on textual, non-topical cues. The authoritativeness of a document is determined by evaluating a set of document content features contained within each document to determine a set of document content feature values, processing the set of document content feature values through a trained document textual authority model, and determining a textual authoritativeness value and/or textual authority class for each document evaluated using the predictive models included in the trained document textual authority model. Estimates of a document's textual authoritativeness value and/or textual authority class can be used to re-rank documents previously retrieved by a search, to expand and improve document query searches, to provide a more complete and robust determination of a document's authoritativeness, and to improve the aggregation of rank-ordered lists with numerically-ordered lists.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: March 6, 2007
    Assignee: Xerox Corporation
    Inventors: Ayman O. Farahat, Francine R. Chen, Charles R. Mathis, Geoffrey D. Nunberg
  • Patent number: 7167871
    Abstract: Systems and methods for determining the authoritativeness of a document based on textual, non-topical cues. The authoritativeness of a document is determined by evaluating a set of document content features contained within each document to determine a set of document content feature values, processing the set of document content feature values through a trained document textual authority model, and determining a textual authoritativeness value and/or textual authority class for each document evaluated using the predictive models included in the trained document textual authority model. Estimates of a document's textual authoritativeness value and/or textual authority class can be used to re-rank documents previously retrieved by a search, to expand and improve document query searches, to provide a more complete and robust determination of a document's authoritativeness, and to improve the aggregation of rank-ordered lists with numerically-ordered lists.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: January 23, 2007
    Assignee: Xerox Corporation
    Inventors: Ayman O. Farahat, Francine R. Chen, Charles R. Mathis, Geoffrey D. Nunberg
  • Publication number: 20030225750
    Abstract: Systems and methods for determining the authoritativeness of a document based on textual, non-topical cues. The authoritativeness of a document is determined by evaluating a set of document content features contained within each document to determine a set of document content feature values, processing the set of document content feature values through a trained document textual authority model, and determining a textual authoritativeness value and/or textual authority class for each document evaluated using the predictive models included in the trained document textual authority model. Estimates of a document's textual authoritativeness value and/or textual authority class can be used to re-rank documents previously retrieved by a search, to expand and improve document query searches, to provide a more complete and robust determination of a document's authoritativeness, and to improve the aggregation of rank-ordered lists with numerically-ordered lists.
    Type: Application
    Filed: September 3, 2002
    Publication date: December 4, 2003
    Applicant: XEROX CORPORATION
    Inventors: Ayman O. Farahat, Francine R. Chen, Charles R. Mathis, Geoffrey D. Nunberg
  • Publication number: 20030226100
    Abstract: Systems and methods for determining the authoritativeness of a document based on textual, non-topical cues. The authoritativeness of a document is determined by evaluating a set of document content features contained within each document to determine a set of document content feature values, processing the set of document content feature values through a trained document textual authority model, and determining a textual authoritativeness value and/or textual authority class for each document evaluated using the predictive models included in the trained document textual authority model. Estimates of a document's textual authoritativeness value and/or textual authority class can be used to re-rank documents previously retrieved by a search, to expand and improve document query searches, to provide a more complete and robust determination of a document's authoritativeness, and to improve the aggregation of rank-ordered lists with numerically-ordered lists.
    Type: Application
    Filed: September 3, 2002
    Publication date: December 4, 2003
    Applicant: XEROX CORPORATION
    Inventors: Ayman O. Farahat, Francine R. Chen, Charles R. Mathis, Geoffrey D. Nunberg
  • Publication number: 20030221166
    Abstract: Systems and methods for determining the authoritativeness of a document based on textual, non-topical cues. The authoritativeness of a document is determined by evaluating a set of document content features contained within each document to determine a set of document content feature values, processing the set of document content feature values through a trained document textual authority model, and determining a textual authoritativeness value and/or textual authority class for each document evaluated using the predictive models included in the trained document textual authority model. Estimates of a document's textual authoritativeness value and/or textual authority class can be used to re-rank documents previously retrieved by a search, to expand and improve document query searches, to provide a more complete and robust determination of a document's authoritativeness, and to improve the aggregation of ran-ordered lists with numerically-ordered lists.
    Type: Application
    Filed: September 3, 2002
    Publication date: November 27, 2003
    Applicant: XEROX CORPORATION
    Inventors: Ayman O. Farahat, Francine R. Chen, Charles R. Mathis, Geoffrey D. Nunberg