International Business Machines Corporation

John M Lucassen

Stephane Herman Maes

Sai Gopala Rathnam

Samar Choudhary

Amber Roy-Chowdhury

Shankar Ramaswamy

Douglass J Wilson

Paul S Cohen

Elton B Sherwin, Jr

David Nahamoo

Michael Alan Picheny

Lalit R Bahl

Stephen Eric Levy

Jerome R Bellegarda

Edward Adam Epstein

John Karat

Joseph C Andreshak

Robert Lawrence Mack

Roger M Miller

Gregg H Daggett

Jorge L Vizcaino

Application development tools and method for building multi-channel, multi-device and multi-modal applications, and in particular, to systems and methods for developing applications whereby a user can interact in parallel with the same information via a multiplicity of channels and user interfaces, while a unified, synchronized views of the information are presented across the various channels or devices deployed by the user to interact with the information. In a preferred embodiment, application frameworks and development tools are preferably based on a MVC (Model-View-Controller) design paradigm that is adapted to provide synchronized multi-modal interactions. Multi-channel authoring can be developed using a similar methodology.

MVC (Model-View-Controller) based multi-modal authoring tool and development environment

A system and method is provided for integrating portlets. When viewing portlets within a portal container, a user is presented with a choice of one or more sources of data and, for each source, one or more actions that the user can take regarding the source. When an action is selected, it causes the source data to be transferred to one or more 'target' portlets that have also been activated by the user. The set of actions available from a given source is automatically provided given the available target portlets. As each portlet is initialized, it informs a 'broker' of the actions that the portlet supports along with the type of data that is used by the action. When a portal page is being constructed, each portlet identifies to the broker the sources of data within the portlet along with the values and data types corresponding to the sources.

System and method for user driven interactive application integration

MVC (model-view-controller) based multi-modal authoring tool and development environment

A method and system are disclosed for reducing perplexity in a speech recognition system within a telephonic network based upon determined caller identity. In a speech recognition system which processes input frames of speech against stored templates representing speech, a core library of speech templates is created and stored representing a basic vocabulary of speech. Multiple caller-specific libraries of speech templates are also created and stored, each library containing speech templates which represent a specialized vocabulary and pronunciations for a specific geographic location and a particular individual. Additionally, the caller-specific libraries of speech templates are preferably processed to reflect the reduced bandwidth, transmission channel variations and other signal variations introduced into the system via a telephonic network. The identification of a caller is determined upon connection to the network via standard caller identification circuitry and upon detection of a spoken utterance, that utterance is processed against the core library, if the caller's identity cannot be determined, or against a particular caller-specific library, if the caller's identity can be determined, thereby greatly enhancing the efficiency and accuracy of speech recognition by the system.

Method and system for reducing perplexity in speech recognition via

An interactive computer system having a processor executing a target computer program, and having a speech recognizer for converting an utterance into a command signal for the target computer program. The target computer program has a series of active program states occurring over a series of time periods. At least a first active-state image is displayed for a first active state occurring during a first time period. At least one object displayed in the first active-state image is identified, and a list of one or more first active-state commands identifying functions which can be performed in the first active state of the target computer program is generated from the identified object. A first active-state vocabulary of acoustic command models for the first active state comprises the acoustic command models from a system vocabulary representing the first active-state commands. A speech recognizer measures the value of at least one feature of an utterance during each of a series of successive time intervals within the first time period to produce a series of feature signals. The measured feature signals are compared to each of the acoustic command models in the first active-state vocabulary to generate a match score for the utterance and each acoustic command model. The speech recognizer outputs a command signal corresponding to the command model from the first active-state vocabulary having the best match score.

Interactive computer system recognizing spoken commands

A method and system for reducing perplexity in a speech recognition system based upon determined geographic location. In a mobile speech recognition system which processes input frames of speech against stored templates representing speech, a core library of speech templates is created and stored representing a basic vocabulary of speech. Multiple location-specific libraries of speech templates are also created and stored, each library containing speech templates representing a specialized vocabulary for a specific geographic location. The geographic location of the mobile speech recognition system is then periodically determined utilizing a cellular telephone system, a geopositioning satellite system or other similar systems and a particular one of the location-specific libraries of speech templates is identified for the current location of the system. Input frames of speech are then processed against the combination of the core library and the particular location-specific library to greatly enhance the accuracy and efficiency of speech recognition by the system. Each location-specific library preferably includes speech templates representative of location place names, proper names, and business establishments within a specific geographic location.

Method and system for location-specific speech recognition

In speech recognition and speech coding, the values of at least two features of an utterance are measured during a series of time intervals to produce a series of feature vector signals. A plurality of single-dimension prototype vector signals having only one parameter value are stored. At least two single-dimension prototype vector signals having parameter values representing first feature values, and at least two other single-dimension prototype vector signals have parameter values representing second feature values. A plurality of compound-dimension prototype vector signals have unique identification values and comprise one first-dimension and one second-dimension prototype vector signal. At least two compound-dimension prototype vector signals comprise the same first-dimension prototype vector signal. The feature values of each feature vector signal are compared to the parameter values of the compound-dimension prototype vector signals to obtain prototype match scores. The identification values of the compound-dimension prototype vector signals having the best prototype match scores for the feature vectors signals are output as a sequence of coded representations of an utterance to be recognized. A match score, comprising an estimate of the closeness of a match between a speech unit and the sequence of coded representations of the utterance, is generated for each of a plurality of speech units. At least one speech subunit, of one or more best candidate speech units having the best match scores, is displayed.

Speech coding apparatus with single-dimension acoustic prototypes for a

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Katonah, NY, United States of America

John M Lucassen