International Business Machines Corporation

Nuance Communications, Inc.

Oliver Verscheure

Lisa Amini

Douglas Lee Schales

Reiner Sailer

Josyula R Rao

Srinivasan Parthasarathy

Mihai Christodorescu

Mitchell Adam Cohen

Pascal Frossard

Wietse Z Venema

Effrosyni Kokiopoulou

A method for speech recognition, the method includes: extracting time-frequency speech features from a series of reference speech elements in a first series of sampling windows; aligning reference speech elements that are not of equal time span duration; constructing a common subspace for the aligned speech features; determining a first set of coefficient vectors; extracting a time-frequency feature image from a test speech stream spanned by a second sampling window; approximating the extracted image in the common subspace for the aligned extracted time-frequency speech features with a second coefficient vector; computing a similarity measure between the first and the second coefficient vector; determining if the similarity measure is below a predefined threshold; and wherein a match between the reference speech elements and a portion of the test speech stream is made in response to a similarity measure below a predefined threshold. The said reference speech elements correspond to a keyword of interest, wherein Simultaneous Orthogonal Matching Pursuit (SOMP) is used in their alignment.

Method and system for robust pattern matching in continuous speech for spotting a keyword of interest using orthogonal matching pursuit

Performing adaptive cyber-security analytics including a computer implemented method that includes receiving a report on a network activity. A score responsive to the network activity and to a scoring model is computed at a computer. The score indicates a likelihood of a security violation. The score is validated and the scoring model is automatically updated responsive to results of the validating. The network activity is reported as suspicious in response to the score being within a threshold of a security violation value.

Adaptive cyber-security analytics

Growing community of inventors

Hopewell Junction, NY, United States of America

Oliver Verscheure