Patents by Inventor Emmanuel Yashchm

Emmanuel Yashchm 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 system for off-line detection of textual topical changes and topic identification via likelihood based methods for improved language modeling
    Patent number: 6529902
    Abstract: A system (and method) for off-line detection of textual topical changes includes at least one central processing unit (CPU), at least one memory coupled to the at least one CPU, a network connectable to the at least one CPU, and a database, stored on the at least one memory, containing a plurality of textual data set of topics. The CPU executes first and second processes in first and second directions, respectively, for extracting a segment having a predetermined size from a text, computing likelihood scores of a text in the segment for each topic, computing likelihood ratios, comparing them to a threshold, and defining whether there is a change point at the current last word in a window.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: March 4, 2003
    Assignee: International Business Machines Corporation
    Inventors: Dimitri Kanevsky, Emmanuel Yashchm