Patents by Inventor Shiva P. Kasiviswanathan

Shiva P. Kasiviswanathan 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).

  • Inferring emerging and evolving topics in streaming text
    Patent number: 8909643
    Abstract: A method, system and computer program product for inferring topic evolution and emergence in a set of documents. In one embodiment, the method comprises forming a group of matrices using text in the documents, and analyzing these matrices to identify a first group of topics as evolving topics and a second group of topics as emerging topics. The matrices includes a first matrix X identifying a multitude of words in each of the documents, a second matrix W identifying a multitude of topics in each of the documents, and a third matrix H identifying a multitude of words for each of the multitude of topics. These matrices are analyzed to identify the evolving and emerging topics. In an embodiment, the documents form a streaming dataset, and two forms of temporal regularizers are used to help identify the evolving topics and the emerging topics in the streaming dataset.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: December 9, 2014
    Assignee: International Business Machines Corporation
    Inventors: Saha Ankan, Arindam Banerjee, Shiva P. Kasiviswanathan, Richard D. Lawrence, Prem Melville, Vikas Sindhwani, Edison L. Ting
  • INFERRING EMERGING AND EVOLVING TOPICS IN STREAMING TEXT
    Publication number: 20130151520
    Abstract: A method, system and computer program product for inferring topic evolution and emergence in a set of documents. In one embodiment, the method comprises forming a group of matrices using text in the documents, and analyzing these matrices to identify a first group of topics as evolving topics and a second group of topics as emerging topics. The matrices includes a first matrix X identifying a multitude of words in each of the documents, a second matrix W identifying a multitude of topics in each of the documents, and a third matrix H identifying a multitude of words for each of the multitude of topics. These matrices are analyzed to identify the evolving and emerging topics. In an embodiment, the documents form a streaming dataset, and two forms of temporal regularizers are used to help identify the evolving topics and the emerging topics in the streaming dataset.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 13, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Saha Ankan, Arindam Banerjee, Shiva P. Kasiviswanathan, Richard D. Lawrence, Prem Melville, Vikas Sindhwani, Edison L. Ting
  • INFERRING EMERGING AND EVOLVING TOPICS IN STREAMING TEXT
    Publication number: 20130151525
    Abstract: A method, system and computer program product for inferring topic evolution and emergence in a set of documents. In one embodiment, the method comprises forming a group of matrices using text in the documents, and analyzing these matrices to identify evolving topics and emerging topics. The matrices includes a matrix X identifying a multitude of words in each of the documents, a matrix W identifying a multitude of topics in each of the documents, and a matrix H identifying a multitude of words for each of the multitude of topics. These matrices are analyzed to identify the evolving and emerging topics. In an embodiment, two forms of temporal regularizers are used to help identify the evolving and emerging topics. In another embodiment, a two stage approach involving detection and clustering is used to help identify the evolving and emerging topics.
    Type: Application
    Filed: September 14, 2012
    Publication date: June 13, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Saha Ankan, Arindam Banerjee, Shiva P. Kasiviswanathan, Richard D. Lawrence, Prem Melville, Vikas Sindhwani, Edison L. Ting