Patents by Inventor Sreenivasa P. Sista

Sreenivasa P. Sista 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).

  • Method and apparatus for score normalization for information retrieval applications
    Patent number: 7062485
    Abstract: A method and apparatus for normalizing a score associated with a document is presented. Statistics relating to scores assigned to a set of training documents not relevant to a topic are determined. Scores represent a measure of relevance to the topic. After the various statistics have been collected, a score assigned to a testing document is normalized based on those statistics. The normalized score is then compared to a threshold score. Subsequently, the testing document is designated as relevant or not relevant to the topic based on the comparison.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: June 13, 2006
    Inventors: Huaichuan Hubert Jin, Richard Schwartz, Frederick G. Walls, Sreenivasa P. Sista
  • Method and apparatus for score normalization for information retrieval applications
    Patent number: 6651057
    Abstract: A method and apparatus for normalizing a score associated with a document is presented. Statistics relating to scores assigned to a set of training documents not relevant to a topic arc determined. Scores represent a measure of relevance to the topic. After the various statistics have been collected, a score assigned to a testing document is normalized based on those statistics. The normalized score is then compared to a threshold score. Subsequently, the testing document is designated as relevant or not relevant to the topic based on the comparison.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: November 18, 2003
    Assignee: BBNT Solutions LLC
    Inventors: Huaichuan Hubert Jin, Richard Schwartz, Frederick G. Walls, Sreenivasa P. Sista