Patents by Inventor Utpal Garain

Utpal Garain 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: 20240143630
    Abstract: This disclosure relates generally to multi-class multi-label classification and more particularly to contradiction avoided learning for multi-class multi-label classification. Conventional classification methods do not consider contradictory outcomes in multi-label classification tasks wherein contradictory outcomes have significant negative impact in the classification problem solution. The present disclosure provides a contradiction avoided learning multi-class multi-label classification. The disclosed method utilizes a binary contradiction matrix constructed using domain knowledge. Based on the binary contradiction matrix the training dataset is divided into two parts, one comprising contradictions and the second without contradictions. The classification model is trained using the divided datasets using a contradiction loss and a binary cross entropy loss to avoid contradictions during learning of the classification model.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 2, 2024
    Applicant: Tata Counultancy Services Limited
    Inventors: Arijit UKIL, Arpan PAL, Soumadeep SAHA, Utpal GARAIN
  • 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
  • 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: 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
  • Patent number: 9922263
    Abstract: The present disclosure relates to a system and a method for detection of touching characters in a media, characterized by segmentation of adjoining character spaces. In the very first step, an aspect ratio is calculated for each connected component. A candidate touching position of each character is determined by calculating a threshold aspect ratio for each character. Further, a candidate cut column is determined based on a relation between column pixel densities and corresponding length thereof the column in order to segment the touching characters at the candidate cut column.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: March 20, 2018
    Assignees: TATA CONSULTANCY SERVICES LIMITED, INDIAN STATISTICAL INSTITUTE
    Inventors: Tanushyam Chattopadhyay, Arpan Pal, Aniruddha Sinha, Utpal Garain
  • Patent number: 9275307
    Abstract: Disclosed is a method and system for automatic algorithm selection for image processing. The invention discloses the method and system for automatically selecting the correct algorithm(s) for a varying requirement of the image for processing. The selection of algorithm is completely automatic and guided by a plurality of machine learning approaches. The system here is configured to pre-process plurality of images for creating a training data. Next, the test image is extracted, pre-processed and matched for assessing the best possible match of algorithm for processing.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: March 1, 2016
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Tanushyam Chattopadhyay, Ramu Vempada Reddy, Utpal Garain
  • Publication number: 20150086113
    Abstract: The present disclosure relates to a system and a method for detection of touching characters in a media, characterized by segmentation of adjoining character spaces. In the very first step, an aspect ratio is calculated for each connected component. A candidate touching position of each character is determined by calculating a threshold aspect ratio for each character. Further, a candidate cut column is determined based on a relation between column pixel densities and corresponding length thereof the column in order to segment the touching characters at the candidate cut column.
    Type: Application
    Filed: March 20, 2013
    Publication date: March 26, 2015
    Inventors: Tanushyam Chattopadhyay, Arpan Pal, Aniruddha Sinha, Utpal Garain
  • Publication number: 20140348420
    Abstract: Disclosed is a method and system for automatic algorithm selection for image processing. The invention discloses the method and system for automatically selecting the correct algorithm(s) for a varying requirement of the image for processing. The selection of algorithm is completely automatic and guided by a plurality of machine learning approaches. The system here is configured to pre-process plurality of images for creating a training data. Next, the test image is extracted, pre-processed and matched for assessing the best possible match of algorithm for processing.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 27, 2014
    Applicant: Tata Consultancy Services Limited
    Inventors: Tanushyam Chattopadhyay, Ramu Vempada Reddy, Utpal Garain