Patents by Inventor Ishan SAHU

Ishan SAHU 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: 20240096492
    Abstract: The present invention relates to the field of evaluating clinical diagnostic models. Conventional metrics does not consider context dependent clinical principles and is unable to capture critically important features that ought to be present in a diagnostic model. Thus, present disclosure provides a method and system for evaluating clinical efficacy of multi-label multi-class computational diagnostic models. Diagnosis for a given dataset of diagnostic samples is obtained from the diagnostic model which is then classified as wrong, missed, over or right diagnosis, based on which a first penalty is calculated. A second penalty is calculated for each diagnostic sample using a contradiction matrix. The first and second penalties are summed up to compute a pre-score for each diagnostic sample. Finally, the diagnostic model is evaluated using a metric that is based on sum of pre-scores, and scores from a perfect and a null multi-label multi-class computational diagnostic model.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 21, 2024
    Applicant: Tata Consultancy Services Limited
    Inventors: Arijit UKIL, Trisrota DEB, Ishan SAHU, Sai Chander RACHA, Sundeep KHANDELWAL, Arpan PAL, Utpal GARAIN, Soumadeep SAHA
  • Publication number: 20240079140
    Abstract: Portable ECG monitors available in market have the disadvantage that the ECG data they provide as input aren't directly interpretable and requires medical knowledge for the users. The disclosure herein generally relates to Electrocardiogram (ECG), and, more particularly, to a method and system for generating 2d representation of electrocardiogram (ECG) signals. The system provides a mechanism for determining variability between a plurality of segments of an ECG data measured, and uses the information on the determined variability to generate the 2D representation corresponding to the ECG signal. The system further provides means to generate a data model that can be further used for processing real-time ECG data for generating corresponding interpretations. This allows a user to obtain the interpretations as output.
    Type: Application
    Filed: July 28, 2023
    Publication date: March 7, 2024
    Applicant: Tata Consultancy Services Limited
    Inventors: Arijit UKIL, Jayavardhana Rama Gubbi Lakshminarasimha, Arpan Pal, Trisrota Deb, Sai Chander Racha, Ishan Sahu, Sundeep Khandelwal
  • Patent number: 11494415
    Abstract: A method and system for a feature subset-classifier pair for a classification task. The classification task corresponds to automatically classifying data associated with a subject(s) or object(s) of interest into an appropriate class based on a feature subset selected among a plurality of features extracted from the data and a classifier selected from a set of classifier types. The method proposed includes simultaneously determining the feature subset-classifier pair based on a relax-greedy {feature subset, classifier} approach utilizing sub-greedy search process based on a patience function, wherein the feature subset-classifier pair provides an optimal combination for more accurate classification. The automatic joint selection is time efficient solution, effectively speeding up the classification task.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: November 8, 2022
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Ishan Sahu, Ayan Mukherjee, Arijit Ukil, Soma Bandyopadhyay, Chetanya Puri, Rituraj Singh, Arpan Pal, Rohan Banerjee
  • Patent number: 11475341
    Abstract: Systems and methods for obtaining optimal mother wavelets for facilitating machine learning tasks. The traditional systems and methods provide for selecting a mother wavelet and signal classification using some traditional techniques and methods but none them provide for selecting an optimal mother wavelet to facilitate machine learning tasks. Embodiments of the present disclosure provide for obtaining an optimal mother wavelet to facilitate machine learning tasks by computing values of energy and entropy based upon labelled datasets and a probable set of mother wavelets, computing values of centroids and standard deviations based upon the values of energy and entropy, computing a set of distance values and normalizing the set of distance values and obtaining the optimal mother wavelet based upon the set of distance values for performing a wavelet transform and further facilitating machine learning tasks by classifying or regressing, a new set of signal classes, corresponding to a new set of signals.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: October 18, 2022
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Ishan Sahu, Snehasis Banerjee, Tanushyam Chattopadhyay, Arpan Pal, Utpal Garain
  • Publication number: 20220284293
    Abstract: Small and compact Deep Learning models are required for embedded Al in several domains. In many industrial use-cases, there are requirements to transform already trained models to ensemble embedded systems or re-train those for a given deployment scenario, with limited data for transfer learning. Moreover, the hardware platforms used in embedded application include FPGAs, AI hardware accelerators, System-on-Chips and on-premises computing elements (Fog/Network Edge). These are interconnected through heterogenous bus/network with different capacities. Method of the present disclosure finds how to automatically partition a given DNN into ensemble devices, considering the effect of accuracy—latency power—tradeoff, due to intermediate compression and effect of quantization due to conversion to AI accelerator SDKs.
    Type: Application
    Filed: September 14, 2021
    Publication date: September 8, 2022
    Applicant: Tata Consultancy Services Limited
    Inventors: Swarnava DEY, Arpan PAL, Gitesh KULKARNI, Chirabrata BHAUMIK, Arijit UKIL, Jayeeta MONDAL, Ishan SAHU, Aakash TYAGI, Amit SWAIN, Arijit MUKHERJEE
  • Publication number: 20210326765
    Abstract: This disclosure relates generally to method and system for an adaptive filter based learning model for time series sensor signal classification on edge devices. The adaptive filter based learning model for time series sensor signal classification enables automated-computationally lightweight learning (significant reduction in computational resources) and inferring/classification in real-time or near-real-time on CPU/memory/battery life constrained edge devices. The disclosed techniques for time series sensor signal classification on edge devices characterizes the intrinsic signal processing properties of the input time series sensor signals using linear adaptive filtering and derivative spectrum to efficiently construct the adaptive filter based learning model based on standard classification algorithms for time series sensor signal classification.
    Type: Application
    Filed: January 25, 2021
    Publication date: October 21, 2021
    Applicant: Tata Consultancy Services Limited
    Inventors: Arijit UKIL, Arpan PAL, Soma BANDYOPADHYAY, Ishan SAHU, Trisrota DEB
  • Publication number: 20200012941
    Abstract: The disclosure herein describes a method and a system for generating hybrid learning techniques. The hybrid learning technique refers to learning techniques that are a combination a plurality of techniques that include of deep learning, machine learning and signal processing to enable a rich feature space representation and classifier construction. The generation of the hybrid learning techniques also considers influence/impact of domain constraints that include business requirements and computational constraints, while generating hybrid learning techniques. Further from the plurality hybrid learning techniques a single hybrid learning technique is chosen based on performance matrix based on optimization techniques.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 9, 2020
    Applicant: Tata Consultancy Services Limited
    Inventors: Arijit UKIL, Soma BANDYOPADHYAY, Pankaj MALHOTRA, Arpan PAL, Lovekesh VIG, Gautam SHROFF, Tulika BOSE, Ishan SAHU, Ayan MUKHERJEE
  • Publication number: 20190361919
    Abstract: A method and system for a feature subset-classifier pair for a classification task. The classification task corresponds to automatically classifying data associated with a subject(s) or object(s) of interest into an appropriate class based on a feature subset selected among a plurality of features extracted from the data and a classifier selected from a set of classifier types. The method proposed includes simultaneously determining the feature subset-classifier pair based on a relax-greedy {feature subset, classifier} approach utilizing sub-greedy search process based on a patience function, wherein the feature subset-classifier pair provides an optimal combination for more accurate classification. The automatic joint selection is time efficient solution, effectively speeding up the classification task.
    Type: Application
    Filed: May 23, 2019
    Publication date: November 28, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Ishan SAHU, Ayan MUKHERJEE, Arijit UKIL, Soma BANDYOPADHYAY, Chetanya PURI, Rituraj SINGH, Arpan PAL, Rohan BANERJEE
  • Publication number: 20190205778
    Abstract: Systems and methods for obtaining optimal mother wavelets for facilitating machine learning tasks. The traditional systems and methods provide for selecting a mother wavelet and signal classification using some traditional techniques and methods but none them provide for selecting an optimal mother wavelet to facilitate machine learning tasks. Embodiments of the present disclosure provide for obtaining an optimal mother wavelet to facilitate machine learning tasks by computing values of energy and entropy based upon labelled datasets and a probable set of mother wavelets, computing values of centroids and standard deviations based upon the values of energy and entropy, computing a set of distance values and normalizing the set of distance values and obtaining the optimal mother wavelet based upon the set of distance values for performing a wavelet transform and further facilitating machine learning tasks by classifying or regressing, a new set of signal classes, corresponding to a new set of signals.
    Type: Application
    Filed: November 2, 2018
    Publication date: July 4, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Ishan SAHU, Snehasis BANERJEE, Tanushyam CHATTOPADHYAY, Arpan PAL, Utpal GARAIN