Patents by Inventor Karthik Visweswariah

Karthik Visweswariah 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).

  • Publication number: 20110106580
    Abstract: Embodiments of the invention provide retailers with the ability to employ concept-based marketing using only a few representative examples. Embodiments of the invention take seed examples, utilize the seed examples to provide an expanded list (that can be edited as desired) representative of the concept, and map the expanded list to a final set of customers to be included in a targeted marketing operation.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 5, 2011
    Applicant: International Business Machines Corporation
    Inventors: Noel J. Almeida, Jayanta Basak, Raghuram Krishnapuram, Debapriyo Majumdar, Deepak S. Padmanabhan, Karthik Visweswariah
  • Publication number: 20110082716
    Abstract: A system for discovering business processes from noisy activities logs from various activities performed during the execution of the process. Activities are observed from the noisy activity logs that may include text from manually entered activity logs, chat scripts, emails, voice transcripts, desktop captures, and tool logs, wherein the noisy activity logs are received from multiple person/tool actors with each of the actors performing one or more activities related to one/more business tasks. Extracting information from the noisy activity logs to capture activity based information, and then analyzing similar activities and finding possible paths in the similar activities. The results are used to build a process graph based on the similar activities and the possible paths in the similar activities.
    Type: Application
    Filed: October 7, 2009
    Publication date: April 7, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Anuradha Bhamidipaty, Krishna Kummamuru, Shailabh Nagar, Ramendra Kumar Sahoo, Virendra K. Varshneya, Karthik Visweswariah
  • Publication number: 20110015987
    Abstract: Systems and methods of marketing to mobile devices are provided. Other methods, apparatus, and computer readable media are also provided.
    Type: Application
    Filed: July 20, 2009
    Publication date: January 20, 2011
    Applicant: International Business Machines Corporation
    Inventors: Dipanjan Chakraborty, Koustuv Dasgupta, Dinesh Garg, Shivkumar Kalyanaraman, Alwyn R. Lobo, Sumit Mittal, Deepak S. Padmanabhan, Ramana V. Polavarapu, Lakshmish M. Ramaswamy, Karthik Visweswariah
  • Patent number: 7853449
    Abstract: Techniques are provided for generating improved language modeling. Such improved modeling is achieved by conditioning a language model on a state of a dialog for which the language model is employed. For example, the techniques of the invention may improve modeling of language for use in a speech recognizer of an automatic natural language based dialog system. Improved usability of the dialog system arises from better recognition of a user's utterances by a speech recognizer, associated with the dialog system, using the dialog state-conditioned language models. By way of example, the state of the dialog may be quantified as: (i) the internal state of the natural language understanding part of the dialog system; or (ii) words in the prompt that the dialog system played to the user.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: December 14, 2010
    Assignee: Nuance Communications, Inc.
    Inventors: Satyanarayana Dharanipragada, Michael Daniel Monkowski, Harry W. Printz, Karthik Visweswariah
  • Patent number: 7788088
    Abstract: A method includes applying at least one tag to at least one data element stored in a database the tag having at least one associated rule, utilizing the at least one associated rule to generate at least one variant of the data element, and storing the at least one variant in the database.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: August 31, 2010
    Assignee: International Business Machines Corporation
    Inventors: William J. Ablondi, Vaibhava Goel, Ea-Ee Jan, Benoit Emmanuel Maison, Jerome L. Quinn, Karthik Visweswariah
  • Patent number: 7542901
    Abstract: Techniques are provided for generating improved language modeling. Such improved modeling is achieved by conditioning a language model on a state of a dialog for which the language model is employed. For example, the techniques of the invention may improve modeling of language for use in a speech recognizer of an automatic natural language based dialog system. Improved usability of the dialog system arises from better recognition of a user's utterances by a speech recognizer, associated with the dialog system, using the dialog state-conditioned language models. By way of example, the state of the dialog may be quantified as: (i) the internal state of the natural language understanding part of the dialog system; or (ii) words in the prompt that the dialog system played to the user.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: June 2, 2009
    Assignee: Nuance Communications, Inc.
    Inventors: Satyanarayana Dharanipragada, Michael Daniel Monkowski, Harry W. Printz, Karthik Visweswariah
  • Publication number: 20080270135
    Abstract: A method (and system) of handling out-of-grammar utterances includes building a statistical language model for a dialog state using, generating sentences and semantic interpretations for the sentences using finite state grammar, building a statistical action classifier, receiving user input, carrying out recognition with the finite state grammar, carrying out recognition with the statistical language model, using the statistical action classifier to find semantic interpretations, comparing an output from the finite state grammar and an output from the statistical language model, deciding which output of the output from the finite state grammar and the output from the statistical language model to keep as a final recognition output, selecting the final recognition output, and outputting the final recognition result, wherein the statistical action classifier, the finite state grammar and the statistical language model are used in conjunction to carry out speech recognition and interpretation.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 30, 2008
    Applicant: International Business Machines Corporation
    Inventors: Vaibhava Goel, Ramesh Gopinath, Ea-Ee Jan, Karthik Visweswariah
  • Publication number: 20080215329
    Abstract: Techniques are provided for generating improved language modeling. Such improved modeling is achieved by conditioning a language model on a state of a dialog for which the language model is employed. For example, the techniques of the invention may improve modeling of language for use in a speech recognizer of an automatic natural language based dialog system. Improved usability of the dialog system arises from better recognition of a user's utterances by a speech recognizer, associated with the dialog system, using the dialog state-conditioned language models. By way of example, the state of the dialog may be quantified as: (i) the internal state of the natural language understanding part of the dialog system; or (ii) words in the prompt that the dialog system played to the user.
    Type: Application
    Filed: March 28, 2008
    Publication date: September 4, 2008
    Applicant: International Business Machines Corporation
    Inventors: Satyanarayana Dharanipragada, Michael Daniel Monkowski, Harry W. Printz, Karthik Visweswariah
  • Publication number: 20080215618
    Abstract: A method includes applying at least one tag to at least one data element stored in a database the tag having at least one associated rule, utilizing the at least one associated rule to generate at least one variant of the data element, and storing the at least one variant in the database.
    Type: Application
    Filed: April 3, 2008
    Publication date: September 4, 2008
    Inventors: William J. Ablondi, Vaibhava Goel, Ea-Ee Jan, Benoit Emmanuel Maison, Jerome L. Quinn, Karthik Visweswariah
  • Publication number: 20070162275
    Abstract: A method includes applying at least one tag to at least one data element stored in a database the tag having at least one associated rule, utilizing the at least one associated rule to generate at least one variant of the data element, and storing the at least one variant in the database.
    Type: Application
    Filed: January 11, 2006
    Publication date: July 12, 2007
    Applicant: International Business Machines Corporation
    Inventors: William Ablondi, Vaibhava Goel, Ea-Ee Jan, Benoit Maison, Jerome Quinn, Karthik Visweswariah
  • Publication number: 20070033042
    Abstract: A speech detection system extracts a plurality of features from multiple input streams. In the acoustic model space, the tree of Gaussians in the model is pruned to include the active states. The Gaussians are mapped to Hidden Markov Model states for Viterbi phoneme alignment. Another feature space, such as the energy feature space is combined with the acoustic feature space. In the feature space, the features are combined and principal component analysis decorrelates the features to fewer dimensions, thus reducing the number of features. The Gaussians are also mapped to silence, disfluent phoneme, or voiced phoneme classes. The silence class is true silence and the voiced phoneme class is speech. The disfluent class may be speech or non-speech. If a frame is classified as disfluent, then that frame is re-classified as the silence class or the voiced phoneme class based on adjacent frames.
    Type: Application
    Filed: August 3, 2005
    Publication date: February 8, 2007
    Applicant: International Business Machines Corporation
    Inventors: Etienne Marcheret, Karthik Visweswariah
  • Publication number: 20060293901
    Abstract: Techniques are provided for generating improved language modeling. Such improved modeling is achieved by conditioning a language model on a state of a dialog for which the language model is employed. For example, the techniques of the invention may improve modeling of language for use in a speech recognizer of an automatic natural language based dialog system. Improved usability of the dialog system arises from better recognition of a user's utterances by a speech recognizer, associated with the dialog system, using the dialog state-conditioned language models. By way of example, the state of the dialog may be quantified as: (i) the internal state of the natural language understanding part of the dialog system; or (ii) words in the prompt that the dialog system played to the user.
    Type: Application
    Filed: August 24, 2006
    Publication date: December 28, 2006
    Applicant: International Business Machines Corporation
    Inventors: Satyanarayana Dharanipragada, Michael Monkowski, Harry Printz, Karthik Visweswariah
  • Patent number: 7143035
    Abstract: Techniques are provided for generating improved language modeling. Such improved modeling is achieved by conditioning a language model on a state of a dialog for which the language model is employed. For example, the techniques of the invention may improve modeling of language for use in a speech recognizer of an automatic natural language based dialog system. Improved usability of the dialog system arises from better recognition of a user's utterances by a speech recognizer, associated with the dialog system, using the dialog state-conditioned language models. By way of example, the state of the dialog may be quantified as: (i) the internal state of the natural language understanding part of the dialog system; or (ii) words in the prompt that the dialog system played to the user.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: November 28, 2006
    Assignee: International Business Machines Corporation
    Inventors: Satyanarayana Dharanipragada, Michael Daniel Monkowski, Harry W. Printz, Karthik Visweswariah
  • Patent number: 6754625
    Abstract: There is provided a method for augmenting an alternate word list generated by a speech recognition system. The alternate word list includes at least one potentially correct word for replacing a wrongly decoded word. The method includes the step of identifying at least one acoustically confusable word with respect to the wrongly decoded word. The alternate word list is augmented with the at least one acoustically confusable word.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: June 22, 2004
    Assignee: International Business Machines Corporation
    Inventors: Peder Andreas Olsen, Michael Alan Picheny, Harry W. Printz, Karthik Visweswariah
  • Publication number: 20030187648
    Abstract: Techniques are provided for generating improved language modeling. Such improved modeling is achieved by conditioning a language model on a state of a dialog for which the language model is employed. For example, the techniques of the invention may improve modeling of language for use in a speech recognizer of an automatic natural language based dialog system. Improved usability of the dialog system arises from better recognition of a user's utterances by a speech recognizer, associated with the dialog system, using the dialog state-conditioned language models. By way of example, the state of the dialog may be quantified as: (i) the internal state of the natural language understanding part of the dialog system; or (ii) words in the prompt that the dialog system played to the user.
    Type: Application
    Filed: March 27, 2002
    Publication date: October 2, 2003
    Applicant: International Business Machines Corporation
    Inventors: Satyanarayana Dharanipragada, Michael Daniel Monkowski, Harry W. Printz, Karthik Visweswariah
  • Publication number: 20020116191
    Abstract: There is provided a method for augmenting an alternate word list generated by a speech recognition system. The alternate word list includes at least one potentially correct word for replacing a wrongly decoded word. The method includes the step of identifying at least one acoustically confusable word with respect to the wrongly decoded word. The alternate word list is augmented with the at least one acoustically confusable word.
    Type: Application
    Filed: December 26, 2000
    Publication date: August 22, 2002
    Applicant: International Business Machines Corporation
    Inventors: Peder Andreas Olsen, Michael Alan Picheny, Harry W. Printz, Karthik Visweswariah