Patents by Inventor Regunathan Radhakrishnan
Regunathan Radhakrishnan 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).
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Patent number: 11954189Abstract: A method and system of authenticating a user logon builds a user logon profile with a plurality of user logon features gathered during at least one successful attempted user logon, determines a logon feature novelty score for each feature, receives a user logon request for authentication and extracts current user logon features, retrieves corresponding logon feature novelty scores, determines a first distance function score for the corresponding logon feature novelty scores of the current user logon features, builds a failed logon attempt database, determines a failed logon feature novelty score, extracts the failed logon feature novelty scores corresponding to current user logon features, determines a second distance function score for the corresponding failed logon feature novelty scores of the current user logon features, and determining to one of allow or deny the user logon request based on at least one of the first distance function score and the second distance function score.Type: GrantFiled: January 31, 2022Date of Patent: April 9, 2024Assignee: Salesforce, Inc.Inventors: Vijay Erramilli, Regunathan Radhakrishnan, Anuj Gargeya Malkapuram
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Publication number: 20240022604Abstract: Systems, devices, and techniques are disclosed for security configuration evaluation. A binary representation of a reference security configuration for an application may be generated. The binary representation of the reference security configuration for the application may be hashed to generate a reference hash for the application. Data for an instance security configuration for an instance of the application may be received. A binary representation of the instance security configuration may be generated from the received data for the instance security configuration. The binary representation of the instance security configuration may be hashed to generate an instance hash. The computing device may determine the distance between the reference hash and the instance hash. The instance security configuration may be determined to be secure if the distance is not greater than a threshold.Type: ApplicationFiled: July 15, 2022Publication date: January 18, 2024Inventors: Regunathan Radhakrishnan, Vijay Erramilli, Anuj Gargeya Malkapuram
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Publication number: 20230394367Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for classifying user behavior as anomalous. One of the methods includes obtaining user behavior data representing behavior of a user in a subject system. An initial model is generated from training data, the initial model having first characteristic features of the training data. A resampling model is generated from the training data and from multiple instances of the first representation for a test time period. A difference between the initial model and the resampling model is computed. The user behavior in the test time period is classified as anomalous based on the difference between the initial model and the resampling model.Type: ApplicationFiled: August 15, 2023Publication date: December 7, 2023Inventors: Jin Yu, Regunathan Radhakrishnan, Anirudh Kondaveeti
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Patent number: 11727311Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for classifying user behavior as anomalous. One of the methods includes obtaining user behavior data representing behavior of a user in a subject system. An initial model is generated from training data, the initial model having first characteristic features of the training data. A resampling model is generated from the training data and from multiple instances of the first representation for a test time period. A difference between the initial model and the resampling model is computed. The user behavior in the test time period is classified as anomalous based on the difference between the initial model and the resampling model.Type: GrantFiled: July 21, 2022Date of Patent: August 15, 2023Assignee: Pivotal Software, Inc.Inventors: Jin Yu, Regunathan Radhakrishnan, Anirudh Kondaveeti
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Patent number: 11720599Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for clustering and visualizing textual data. A data clustering and visualization system clusters large volumes of semi-structured and unstructured textual data into categories. Each category can include a group of similar alerts and incidents. The categories are then graphically presented.Type: GrantFiled: February 12, 2015Date of Patent: August 8, 2023Assignee: Pivotal Software, Inc.Inventors: Derek Chin-Teh Lin, Regunathan Radhakrishnan, Rashmi Raghu, Jin Yu
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Publication number: 20230244766Abstract: A method and system of authenticating a user logon builds a user logon profile with a plurality of user logon features gathered during at least one successful attempted user logon, determines a logon feature novelty score for each feature, receives a user logon request for authentication and extracts current user logon features, retrieves corresponding logon feature novelty scores, determines a first distance function score for the corresponding logon feature novelty scores of the current user logon features, builds a failed logon attempt database, determines a failed logon feature novelty score, extracts the failed logon feature novelty scores corresponding to current user logon features, determines a second distance function score for the corresponding failed logon feature novelty scores of the current user logon features, and determining to one of allow or deny the user logon request based on at least one of the first distance function score and the second distance function score.Type: ApplicationFiled: January 31, 2022Publication date: August 3, 2023Inventors: Vijay Erramilli, Regunathan Radhakrishnan, Anuj Gargeya Malkapuram
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Publication number: 20230229763Abstract: Methods, computer readable media, and devices to automatically construct kill-chain from security alerts are disclosed. One method may include collecting a plurality of security alerts, receiving a selection of a high severity security alert associated with a node and a user from among the plurality of security alerts, creating a security narrative for the high severity security alert by providing a set of historical security alerts to a deep learning architecture, the set including security alerts selected based on a relation to the node and the user, and identifying a subset of the set of historical security alerts, including security alerts relevant to the high severity security alert, in a reverse time order by the deep learning architecture, and providing the security narrative as part of a response to the high severity security alert.Type: ApplicationFiled: January 19, 2022Publication date: July 20, 2023Inventors: Regunathan Radhakrishnan, Vijay Erramilli, Anirudh Kondaveeti
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Publication number: 20230118341Abstract: Methods, apparatuses, and computer readable media are disclosed. An application server may receive a dataset that includes records associated with user device interactions with a computer system. The application server may modify one or more records according to a data modification metric. The modifying may result in a modified dataset that satisfies a similarity metric defining a permissible deviation between the received dataset and the modified dataset according to a deviation threshold. The data modification metric may satisfy the similarity metric and may define a deviation in the modified dataset that results in an expected classification by the machine learning predictive model to classify the deviation in the modified dataset as an outlier event. The application server may process the modified dataset with the machine learning predictive model to produce a result. The application server may compare the expected classification to the classification to validate the model.Type: ApplicationFiled: October 15, 2021Publication date: April 20, 2023Inventors: Vijay Erramilli, Regunathan Radhakrishnan, Prashant Agrawal
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Publication number: 20220366309Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for classifying user behavior as anomalous. One of the methods includes obtaining user behavior data representing behavior of a user in a subject system. An initial model is generated from training data, the initial model having first characteristic features of the training data. A resampling model is generated from the training data and from multiple instances of the first representation for a test time period. A difference between the initial model and the resampling model is computed. The user behavior in the test time period is classified as anomalous based on the difference between the initial model and the resampling model.Type: ApplicationFiled: July 21, 2022Publication date: November 17, 2022Inventors: Jin Yu, Regunathan Radhakrishnan, Anirudh Kondaveeti
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Patent number: 11436530Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for classifying user behavior as anomalous. One of the methods includes obtaining user behavior data representing behavior of a user in a subject system. An initial model is generated from training data, the initial model having first characteristic features of the training data. A resampling model is generated from the training data and from multiple instances of the first representation for a test time period. A difference between the initial model and the resampling model is computed. The user behavior in the test time period is classified as anomalous based on the difference between the initial model and the resampling model.Type: GrantFiled: September 18, 2019Date of Patent: September 6, 2022Assignee: Pivotal Software, Inc.Inventors: Jin Yu, Regunathan Radhakrishnan, Anirudh Kondaveeti
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Publication number: 20210280200Abstract: Techniques for adaptive processing of media data based on separate data specifying a state of the media data are provided. A device in a media processing chain may determine whether a type of media processing has already been performed on an input version of media data. If so, the device may adapt its processing of the media data to disable performing the type of media processing. If not, the device performs the type of media processing. The device may create a state of the media data specifying the type of media processing. The device may communicate the state of the media data and an output version of the media data to a recipient device in the media processing chain, for the purpose of supporting the recipient device's adaptive processing of the media data.Type: ApplicationFiled: March 15, 2021Publication date: September 9, 2021Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Jeffrey RIEDMILLER, Regunathan RADHAKRISHNAN, Marvin PRIBADI, Farhad FARAHANI, Michael SMITHERS
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Patent number: 10748555Abstract: Example embodiments disclosed herein relate to perception based multimedia processing. There is provided a method for processing multimedia data, the method includes automatically determining user perception on a segment of the multimedia data based on a plurality of clusters, the plurality of clusters obtained in association with predefined user perceptions and processing the segment of the multimedia data at least in part based on determined user perception on the segment. Corresponding system and computer program products are disclosed as well.Type: GrantFiled: June 27, 2019Date of Patent: August 18, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Claus Bauer, Lie Lu, Mingqing Hu, Jun Wang, Poppy Crum, Rhonda Wilson, Regunathan Radhakrishnan
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Publication number: 20200012968Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for classifying user behavior as anomalous. One of the methods includes obtaining user behavior data representing behavior of a user in a subject system. An initial model is generated from training data, the initial model having first characteristic features of the training data. A resampling model is generated from the training data and from multiple instances of the first representation for a test time period. A difference between the initial model and the resampling model is computed. The user behavior in the test time period is classified as anomalous based on the difference between the initial model and the resampling model.Type: ApplicationFiled: September 18, 2019Publication date: January 9, 2020Inventors: Jin Yu, Regunathan Radhakrishnan, Anirudh Kondaveeti
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Publication number: 20190325894Abstract: Example embodiments disclosed herein relate to perception based multimedia processing. There is provided a method for processing multimedia data, the method includes automatically determining user perception on a segment of the multimedia data based on a plurality of clusters, the plurality of clusters obtained in association with predefined user perceptions and processing the segment of the multimedia data at least in part based on determined user perception on the segment. Corresponding system and computer program products are disclosed as well.Type: ApplicationFiled: June 27, 2019Publication date: October 24, 2019Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Claus BAUER, Lie LU, Mingqing HU, Jun WANG, Poppy CRUM, Rhonda WILSON, Regunathan RADHAKRISHNAN
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Patent number: 10430721Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for classifying user behavior as anomalous. One of the methods includes obtaining user behavior data representing behavior of a user in a subject system. An initial model is generated from training data, the initial model having first characteristic features of the training data. A resampling model is generated from the training data and from multiple instances of the first representation for a test time period. A difference between the initial model and the resampling model is computed. The user behavior in the test time period is classified as anomalous based on the difference between the initial model and the resampling model.Type: GrantFiled: July 27, 2015Date of Patent: October 1, 2019Assignee: Pivotal Software, Inc.Inventors: Jin Yu, Regunathan Radhakrishnan, Anirudh Kondaveeti
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Publication number: 20190297379Abstract: A media fingerprint archive system generates and archives media fingerprints from second media content portions such as commercials. A downstream media measurement system can extract/derive query fingerprints from an incoming signal and query the media fingerprint archive system whether any of the query fingerprints matches any archived fingerprints. If so, the media measurement system can perform media measurements on a specific secondary media content portion from which the matched query fingerprint is derived. If not, the media measurement system can analyze media characteristics of a media content portion to determine whether the media content portion is a secondary media content portion and perform media measurement if needed to. The media measurement system may send fingerprints from an identified secondary media content portion to the media fingerprint archive system for storage.Type: ApplicationFiled: June 13, 2019Publication date: September 26, 2019Applicant: Dolby Laboratories Licensing CorporationInventors: Michael GRANT, Regunathan RADHAKRISHNAN, Jeff Edwin CHANDLER, Stewart MURRIE, Michael G. BABBITT
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Patent number: 10349125Abstract: A media fingerprint archive system generates and archives media fingerprints from second media content portions such as commercials. A downstream media measurement system can extract/derive query fingerprints from an incoming signal, and query the media fingerprint archive system whether any of the query fingerprints matches any archived fingerprints. If so, the media measurement system can perform media measurements on a specific secondary media content portion from which the matched query fingerprint is derived. If not, the media measurement system can analyze media characteristics of a media content portion to determine whether the media content portion is a secondary media content portion and perform media measurement if needed to. The media measurement system may send fingerprints from an identified secondary media content portion to the media fingerprint archive system for storage.Type: GrantFiled: March 22, 2017Date of Patent: July 9, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Michael Grant, Regunathan Radhakrishnan, Jeff Edwin Chandler, Stewart Murrie, Michael G. Babbitt
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Patent number: 10339959Abstract: Example embodiments disclosed herein relate to perception based multimedia processing. There is provided a method for processing multimedia data, the method includes automatically determining user perception on a segment of the multimedia data based on a plurality of clusters, the plurality of clusters obtained in association with predefined user perceptions and processing the segment of the multimedia data at least in part based on determined user perception on the segment. Corresponding system and computer program products are disclosed as well.Type: GrantFiled: June 24, 2015Date of Patent: July 2, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Claus Bauer, Lie LU, Mingqing Hu, Jun Wang, Poppy Crum, Rhonda Wilson, Regunathan Radhakrishnan
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Patent number: 10296534Abstract: Attributes are identified in media content. A classification value of the media content is computed based on the identified attributes. Thereafter, a fingerprint derived from the media content is stored or searched for based on the classification value of the media content.Type: GrantFiled: June 3, 2015Date of Patent: May 21, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Tianshi Gao, Regunathan Radhakrishnan, Wenyu Jiang, Claus Bauer
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Patent number: 10142761Abstract: A method for creating a head-related impulse response (HRIR) for use in rendering audio for playback through headphones comprises receiving location parameters for a sound including azimuth, elevation, and range relative to a head of a listener, applying a spherical head model to the azimuth, elevation, and range input parameters to generate binaural HRIR values, computing a pinna model using the azimuth and elevation parameters to apply to the binaural HRIR values to pinna modeled HRIR values, computing a torso model using the azimuth and elevation parameters to apply to the pinna modeled HRIR values to generate pinna and torso modeled HRIR values, and computing a near-field model using the azimuth and range parameters to apply to the pinna and torso modeled HRIR values to generate pinna, torso and near-field modeled HRIR values.Type: GrantFiled: March 4, 2015Date of Patent: November 27, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: C. Phillip Brown, Matthew Fellers, Regunathan Radhakrishnan