Patents by Inventor Ritu Chadha

Ritu Chadha 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: 20210327594
    Abstract: A method, computer program product, and system identifying a probability of a medical condition in a patient. The method includes a processor obtaining data set(s) related to a patient population diagnosed with a medical condition and based on a frequency of features in the data set(s), identifying common features. The processor generates pattern(s) including a portion of the common features to generate a machine learning algorithm(s). The processor compiles a training set of data to use to tune the machine learning algorithm(s). The processor dynamically adjusts common features in the pattern(s) such that the machine learning algorithm(s) can distinguish patient data indicating the medical condition from patient data not indicating the medical condition. The processor applies the machine learning algorithm(s) to data related to the undiagnosed patient, to determine the probability.
    Type: Application
    Filed: March 10, 2021
    Publication date: October 21, 2021
    Inventors: Oodaye Shukla, Amy Finkbiner, Robert Lauer, Cody Garges, Rauf Izmailov, Ritu Chadha, Cho-Yu Jason Chiang
  • Patent number: 11145419
    Abstract: A method, computer program product, and system identifying a probability of a medical condition in a patient. The method includes a processor obtaining data set(s) related to a patient population diagnosed with a medical condition and based on a frequency of features in the data set(s), identifying common features. The processor generates pattern(s) including a portion of the common features to generate a machine learning algorithm(s). The processor compiles a training set of data to use to tune the machine learning algorithm(s). The processor dynamically adjusts common features in the pattern(s) such that the machine learning algorithm(s) can distinguish patient data indicating the medical condition from patient data not indicating the medical condition. The processor applies the machine learning algorithm(s) to data related to the undiagnosed patient, to determine the probability.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: October 12, 2021
    Assignee: HVH PRECISION ANALYTICS LLC
    Inventors: Oodaye Shukla, Amy Finkbiner, Robert Lauer, Cody Garges, Rauf Izmailov, Ritu Chadha, Cho-Yu Jason Chiang
  • Patent number: 9386030
    Abstract: An apparatus and method predict and detect network attacks by using a diverse set of indicators to measure aspects of the traffic and by encoding traffic characteristics using these indicators of potential attacks or anomalous behavior. The set of indicators is analyzed by supervised learning to automatically learn a decision rule which examines the temporal patterns in the coded values of the set of indicators to accurately detect and predict network attacks. The rules automatically evolve in response to new attacks as the system updates its rules periodically by analyzing new data and feedback signals about attacks associated with that data. To assist human operators, the system also provides human interpretable explanations of detection and prediction rules by pointing to indicators whose values contribute to a decision that there is an existing network attack or an imminent network attack. When such indictors are detected, an operator can take remediation actions.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: July 5, 2016
    Assignee: VENCORE LABS, INC.
    Inventors: Akshay Vashist, Ritu Chadha, Abhrajit Ghosh, Alexander Poylisher, Yukiko Sawaya, Akira Yamada, Ayumu Kubota
  • Patent number: 9167463
    Abstract: A communication node operable to estimate faults in a mobile ad hoc network and method of performing the same. In one embodiment, the communication node includes a processor and memory including computer program code configured to, with the processor, cause the communication node to monitor a set of observable parameters at the communication node, produce a fault estimate at the communication node from the set of observable parameters, and provide the fault estimate to a global fault detector at another communication node.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: October 20, 2015
    Assignee: Telcordia Technologies, Inc.
    Inventors: Constantin Serban, Akshay Vashist, Rauf Izmailov, Ritu Chadha, Kyriakos Manousakis, Cho-Yu Jason Chiang
  • Patent number: 9135570
    Abstract: A method for active learning using privileged information is disclosed. A processing device receives a set of labeled examples and a set of unlabeled examples. For each unlabeled example in the set of unlabeled examples, the processing device determines whether to query at least one of an oracle to obtain a label for the unlabeled example or a teacher to obtain privileged information about the unlabeled example. The processing device outputs a decision rule based on minimizing a number of queries to the oracle for a label and the teacher for privileged information. Minimizing the number of queries to the teacher and the oracle is based on a cost of querying the teacher or the oracle.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: September 15, 2015
    Assignee: Vencore Labs, Inc.
    Inventors: Akshay Vashist, Ritu Chadha
  • Publication number: 20140355454
    Abstract: A communication node operable to estimate faults in a mobile ad hoc network and method of performing the same. In one embodiment, the communication node includes a processor and memory including computer program code configured to, with the processor, cause the communication node to monitor a set of observable parameters at the communication node, produce a fault estimate at the communication node from the set of observable parameters, and provide the fault estimate to a global fault detector at another communication node.
    Type: Application
    Filed: September 4, 2012
    Publication date: December 4, 2014
    Applicant: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Constantin Serban, Akshay Vashist, Rauf Izmailov, Ritu Chadha, Kyriakos Manousakis, Cho-Yu Jason Chiang
  • Patent number: 8724508
    Abstract: A solution to the problem of automated policy generation for mobile ad hoc networks includes an optimization-based, utility-driven approach aimed at generating optimal policies with respect to the given network objectives. The combination of optimization heuristics and network simulation is used to solve the problem. Specifically, the problem of automated generation of network management policies based on available network plans and related information is solved by converting the policy generation into the following optimization problem: given network information and objectives as input, generate optimal policies as output. The optimization process is guided by a utility function based on performance evaluation criteria reflecting the network objectives.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: May 13, 2014
    Assignee: TTI Inventions C LLC
    Inventors: Cho-Yu Jason Chiang, Gary Levin, Yitzchak Gottlieb, Ritu Chadha, Shih-wei Li
  • Publication number: 20140082730
    Abstract: An apparatus and method predict and detect network attacks by using a diverse set of indicators to measure aspects of the traffic and by encoding traffic characteristics using these indicators of potential attacks or anomalous behavior. The set of indicators is analyzed by supervised learning to automatically learn a decision rule which examines the temporal patterns in the coded values of the set of indicators to accurately detect and predict network attacks. The rules automatically evolve in response to new attacks as the system updates its rules periodically by analyzing new data and feedback signals about attacks associated with that data. To assist human operators, the system also provides human interpretable explanations of detection and prediction rules by pointing to indicators whose values contribute to a decision that there is an existing network attack or an imminent network attack. When such indictors are detected, an operator can take remediation actions.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 20, 2014
    Inventors: Akshay VASHIST, Ritu CHADHA, Abhrajit GHOSH, Alexander POYLISHER, Yukiko SAWAYA, Akira YAMADA, Ayumu KUBOTA
  • Patent number: 8665715
    Abstract: Network management for providing and managing Quality of Service (QoS) in converged networks, and particularly management of bursty, short-lived data loads, in an opaque network where knowledge of or control over network elements is not required. Preferential treatment is provided to some subset of the network users that require better QoS assurances from the underlying network by applying probabilistic admission control decisions in conjunction with estimated network state provides improved performance for high priority data with bursty data loads.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: March 4, 2014
    Assignee: Telcordia Technologies, Inc.
    Inventors: Abhrajit Ghosh, Alexander Poylisher, Ricardo Martija, Ritu Chadha, Latha Kant
  • Publication number: 20120257498
    Abstract: Network management for providing and managing Quality of Service (QoS) in converged networks, and particularly management of bursty, short-lived data loads, in an opaque network where knowledge of or control over network elements is not required. Preferential treatment is provided to some subset of the network users that require better QoS assurances from the underlying network by applying probabilistic admission control decisions in conjunction with estimated network state provides improved performance for high priority data with bursty data loads.
    Type: Application
    Filed: May 20, 2011
    Publication date: October 11, 2012
    Applicant: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Abhrajit Ghosh, Alexander Poylisher, Ricardo Martija, Ritu Chadha, Latha Kant
  • Publication number: 20120250575
    Abstract: A solution to the problem of automated policy generation for mobile ad hoc networks includes an optimization-based, utility-driven approach aimed at generating optimal policies with respect to the given network objectives. The combination of optimization heuristics and network simulation is used to solve the problem. Specifically, the problem of automated generation of network management policies based on available network plans and related information is solved by converting the policy generation into the following optimization problem: given network information and objectives as input, generate optimal policies as output. The optimization process is guided by a utility function based on performance evaluation criteria reflecting the network objectives.
    Type: Application
    Filed: August 26, 2011
    Publication date: October 4, 2012
    Inventors: Cho-Yu Jason Chiang, Gary Levin, Yitzchak Gottlieb, Ritu Chadha, Shih-wei Li
  • Publication number: 20120020216
    Abstract: Loads for a wireless network having a plurality of end nodes are predicted by constructing a computer data set of end-to-end pairs of the end nodes included in the network using a computer model of the network; constructing a computerized set of observables from social information about users of the network; developing a computerized learned model of predicted traffic using at least the data set and the observables; and using the computerized learned model to predict future end-to-end network traffic.
    Type: Application
    Filed: January 11, 2011
    Publication date: January 26, 2012
    Applicant: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Akshay Vashist, Alexander Poylisher, Siun-Chuon Mau, Abhrajit Ghosh, Ritu Chadha
  • Publication number: 20110299389
    Abstract: Systems and methods for managing network congestion through detecting the closeness to network congestion. The network includes a plurality of network nodes, where each node has at least one neighboring node and each node has a buffer for a queue of packets from other nodes. The system measures queue length at a node and the node's neighboring nodes, processes the measured queue lengths to obtain patterns of fluctuations for the measured queue length. The system determines if one or more of the measured nodes are in a transition-onset status toward a phase transition point based on the obtained patterns of fluctuation and generates congestion control signals based on the determination to route network traffic away. The phase transition point corresponds to a change from a non-congestive phase of the measured nodes to a congestive phase of the measured nodes.
    Type: Application
    Filed: December 1, 2010
    Publication date: December 8, 2011
    Applicant: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Siun-Chuon Mau, Alexander Poylisher, Akshaya Vashist, Ritu Chadha, Cho-yu Jason Chiang
  • Patent number: 8023423
    Abstract: A solution to the problem of automated policy generation for mobile ad hoc networks includes an optimization-based, utility-driven approach aimed at generating optimal policies with respect to the given network objectives. The combination of optimization heuristics and network simulation is used to solve the problem. Specifically, the problem of automated generation of network management policies based on available network plans and related information is solved by converting the policy generation into the following optimization problem: given network information and objectives as input, generate optimal policies as output. The optimization process is guided by a utility function based on performance evaluation criteria reflecting the network objectives.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: September 20, 2011
    Assignee: Telcordia Licensing Company, LLC
    Inventors: Cho-Yu Jason Chiang, Gary Levin, Yitzchak Gottlieb, Ritu Chadha, Shih-wei Li
  • Patent number: 7933237
    Abstract: A method and apparatus for controlling ingress to a communications network to control quality of service is described. A request to admit a new communications flow is received. A polynomial and its coefficients representing a state of the network is determined and applied to the network state plus the new communications flow to determine whether admission of the new communications flow would cause the network to operate in a stable or unstable state. In response to determining that the network would operate in the unstable state, a communications flow for the ingress device is downgraded in its quality of service. By another approach, it is determined whether the new communications flow exceeds an allocated quota of bandwidth. Admission or rejection of the communications flow can be determined.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: April 26, 2011
    Assignee: Telcordia Licensing Company, LLC
    Inventors: Farooq Anjum, Latha Kant, Alexander Poylisher, Ritu Chadha
  • Publication number: 20080195360
    Abstract: A solution to the problem of automated policy generation for mobile ad hoc networks includes an optimization-based, utility-driven approach aimed at generating optimal policies with respect to the given network objectives. The combination of optimization heuristics and network simulation is used to solve the problem. Specifically, the problem of automated generation of network management policies based on available network plans and related information is solved by converting the policy generation into the following optimization problem: given network information and objectives as input, generate optimal policies as output. The optimization process is guided by a utility function based on performance evaluation criteria reflecting the network objectives.
    Type: Application
    Filed: July 6, 2007
    Publication date: August 14, 2008
    Inventors: Cho-Yu Jason Chiang, Gary Levin, Yitzchak Gottlieb, Ritu Chadha, Shih-wei Li