Patents by Inventor Vaibhav Rajan
Vaibhav Rajan 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: 11087879Abstract: According to embodiments illustrated herein, there is provided a system for predicting a health condition of a patient. The system further includes one or more processors configured to separately cluster data points from a set of medical records associated with a first class of patients and a second class of patients. A similarity value of each of the clustered data points with respect to a pre-selected subset of data points that represents landmark points may be determined, using a parameterized similarity measure. One or more classifiers are trained using the determined similarity value of each data point. The trained one or more classifiers are adapted to learn one or more parameters of the parameterized similarity measure during the training. An occurrence of the health condition of the patient may be predicted based on the trained one or more classifiers and one or more medical records of the patient.Type: GrantFiled: August 22, 2016Date of Patent: August 10, 2021Assignee: Conduent Business Services, LLCInventors: Harsh Shrivastava, Vijay Huddar, Sakyajit Bhattacharya, Vaibhav Rajan
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Patent number: 11011274Abstract: A method, non-transitory computer readable medium and apparatus for predicting mortality of a current patient are disclosed. For example, the method includes receiving data associated with a plurality of different patients with known mortality outcomes, wherein the data includes a subset of data for each one of a plurality of different measurement timepoints for each one of the plurality of different patients, calculating n number of classifiers, wherein n is equal to a number of the plurality of different measurement timepoints, receiving data associated with the current patient at an i-th measurement timepoint, predicting the current patient has a high mortality risk based on an output of the i-th classifier of the n number of classifiers and transmitting a signal to a health administration server to cause an alarm to be generated in response to the high mortality risk that is predicted.Type: GrantFiled: March 9, 2016Date of Patent: May 18, 2021Assignee: CONDUENT BUSINESS SERVICES, LLCInventors: Vijay Huddar, Bhupendra Solanki, Vaibhav Rajan, Sakyajit Bhattacharya
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Patent number: 10867703Abstract: According to embodiments illustrated herein, there is provided a system for predicting a health condition of a first patient. The system includes a document processor configured to extract one or more headings from one or more medical records of the first patient based on one or more predefined rules. The document processor is further configured to extract one or more words from one or more phrases written under each of the extracted one or more headings, wherein the one or more phrases correspond to documentation of the observation of the first patient by a medical attender. The system further includes one or more processors configured to predict the health condition of the first patient based on a count of the one or more words in historical medical records and the one or more medical records.Type: GrantFiled: February 26, 2015Date of Patent: December 15, 2020Assignee: Conduent Business Services, LLCInventors: Vijay Huddar, Vaibhav Rajan, Sakyajit Bhattacharya, Shourya Roy
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Method and system to process electronic medical records for predicting health conditions of patients
Patent number: 10734101Abstract: A method and a system are provided for processing electronic medical records for predicting a health condition of a patient. The method may determine a first set of datasets of a first patient based on one or more first electronic medical records. The method may extract one or more second sets of datasets of one or more second patients from a database server based on the first set of datasets. The method may generate one or more bipartite graphs based on the first set of datasets and the one or more second sets of datasets. The method may determine a set of edges from the one or more edges based on a matching score in each bipartite graph. The method may further predict the health condition of the first patient based on at least the matching score associated with each of the one or more bipartite graphs.Type: GrantFiled: July 8, 2016Date of Patent: August 4, 2020Assignee: Conduent Business Services, LLCInventors: Vaibhav Rajan, Vijay Huddar -
Patent number: 10607151Abstract: A method and a system for predicting admission of a human subject to a first ward in a medical center are disclosed. A patient dataset is generated based on at least a measure of one or more physiological parameters associated with one or more first human subjects and a first information pertaining to the admission of each of the one or more first human subjects to the first ward. For a first human subject of the one or more first human subjects, a first score at each of the one or more first time instants is determined. Further, one or more second time instants from the one or more first time instants are identified. Further, a second score at each of the one or more second time instants is determined. In an embodiment, the first classifier is trained based on at least the second score, and the first information.Type: GrantFiled: March 22, 2016Date of Patent: March 31, 2020Assignee: Conduent Business Services, LLCInventors: Vaibhav Rajan, Sakyajit Bhattacharya, Vijay Huddar, Abhishek Sengupta, James D Kirkendall, Stephen Fullerton, Katerina Sinclair, Bhupendra Singh Solanki, Prathosh Aragulla Prasad
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Patent number: 10559385Abstract: What is disclosed is a system and method for forecasting and imputing an unknown vital measurement of a patient. Temporally successive patient vital measurements are received which comprise irregularly sampled observations {y1, . . . , yN}, where yj denotes the jth observation at time tj, and N is the number of samples. The vital measurements are then provided to a model trained using historical data of patient vital measurements. The model generates a parameter set ?=(A,B,C), where A is a state transition matrix, B is a control matrix, and C is a matrix which maps state-space variables to observation variables. The parameters are used to obtain state-space variable zt which, in turn, is used to forecast an unknown observation yN+1 or to impute an unknown observation yt, where 1<t<N. The historical data is then updated with the forecasted observation yN+1 or the imputed unknown observation yt.Type: GrantFiled: April 19, 2016Date of Patent: February 11, 2020Assignee: CONDUENT BUSINESS SERVICES, LLCInventors: Abhishek Sengupta, Bhupendra Singh Solanki, Prathosh Aragulla Prasad, Vaibhav Rajan, Katerina Ocean Sinclair, Stephen Fullerton, Satya Narayan Shukla
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Patent number: 10468136Abstract: Disclosed are embodiments of method and system to predict health condition of a human subject. The method comprises receiving historical human-subject related data including records corresponding to multiple data views. The method estimates one or more latent variables based on: a first value indicative of count of records in a cluster, a second value indicative of count of records, and a third value indicative of a parameter utilizable to predict a fourth value. The fourth value corresponds to selection probability of a D-vine pair copula family, of a D-vine mixture model, utilizable to model a cluster. The method generates the D-vine mixture model based on the estimated one or more latent variables. The method further comprises receiving multi-view data of a second human subject and predicting health condition of the second human subject based on the multi-view data using a classifier trained based on the estimated latent variables.Type: GrantFiled: August 29, 2016Date of Patent: November 5, 2019Assignee: CONDUENT BUSINESS SERVICES, LLCInventors: Lavanya Sita Tekumalla, Vaibhav Rajan
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Patent number: 10463312Abstract: Disclosed are embodiments of methods and systems for predicting mortality of a first patient. The method comprises categorizing a historical data into a first category and a second category. The method further comprises determining a first test parameter and a second test parameter based on at least one of a sample data of a first patient and the historical data corresponding to at least one of the first category and the second category. The method further comprises determining a probability score based on a cumulative distribution of at least one of the first test parameter and the second test parameter. The method further comprises categorizing the sample data in one of the first category and the second category based on the probability score. Further, the method comprises predicting the mortality of the first patient based on at least the categorization of the sample data of the first patient.Type: GrantFiled: September 1, 2015Date of Patent: November 5, 2019Assignee: CONDUENT BUSINESS SERVICES, LLCInventors: Sakyajit Bhattacharya, Vaibhav Rajan, Harsh Shrivastava
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Patent number: 10460074Abstract: Disclosed are embodiments of methods and systems for predicting a health condition of a first human subject. The method comprises receiving a measure of one or more physiological parameters associated with the first human subject. The method estimates one or more latent variables based on a first count indicative of a number of the plurality of d-vines, a second count indicative of a number of the one or more records, a first value that is representative of a number of the one or more records clustered into a d-vine from the plurality of d-vines, and a second value that is representative of a parameter utilizable to predict a third value. The method generates the plurality of d-vines based on the estimated one or more latent variables. The method predicts health condition of the first human subject by utilizing a trained classifier based on the estimated one or more latent variables.Type: GrantFiled: April 5, 2016Date of Patent: October 29, 2019Assignee: CONDUENT BUSINESS SERVICES, LLCInventors: Lavanya Sita Tekumalla, Vaibhav Rajan
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Patent number: 10448898Abstract: Disclosed are embodiments of methods and systems for predicting a health condition of a first human subject. The method comprises extracting a historical data including physiological parameters of second human subjects. Thereafter, a first distribution of a first physiological parameter is determined based on a marginal cumulative distribution of a rank transformed historical data. Further, a second distribution of a second physiological parameter is determined based on the first distribution and a first conditional cumulative distribution of the rank transformed historical data. Further, a latent variable is determined based on the first and the second distributions. Thereafter, one or more parameters of at least one bivariate distribution, corresponding to a D-vine copula, are estimated based on the latent variable. Further, a classifier is trained based on the D-vine copula. The classifier is utilizable to predict the health condition of the first human subject based on his/her physiological parameters.Type: GrantFiled: July 14, 2015Date of Patent: October 22, 2019Assignee: CONDUENT BUSINESS SERVICES, LLCInventors: Lavanya Sita Tekumalla, Vaibhav Rajan
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Patent number: 10437944Abstract: Systems and methods of modeling irregularly sampled time series signals with unknown temporal dynamics are disclosed wherein a temporal difference variable (TDV) is introduced to model irregular time differences between subsequent measurements. A hierarchical model is designed comprising two linear dynamical systems that model the effects of evolving TDV on temporal observations. All the parameters of the model, including the temporal dynamics, are statistically estimated using historical data.Type: GrantFiled: March 29, 2016Date of Patent: October 8, 2019Assignee: Conduent Business Services, LLCInventors: Abhishek Sengupta, Prathosh Aragulla Prasad, Satya Narayan Shukla, Vaibhav Rajan, Katerina Sinclair, Stephen Fullerton
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Patent number: 10380497Abstract: Disclosed are the embodiments for creating a model capable of identifying one or more clusters in a healthcare dataset. An input is received pertaining to a range of numbers. Each number in the range of numbers is representative of a number of clusters in the healthcare dataset. For a cluster, one or more first parameters of a distribution associated with the cluster are estimated. Thereafter, a threshold value is determined based on the one or more first parameters. An inverse cumulative distribution of each of one or more n-dimensional variables in the healthcare dataset is determined. The one or more first parameters are updated to generate one or more second parameters based on the estimated inverse cumulative distribution. A model is created for each number in the range of numbers based on the one or more second parameters.Type: GrantFiled: February 13, 2014Date of Patent: August 13, 2019Assignee: Conduent Business Services, LLCInventors: Sakyajit Bhattacharya, Vaibhav Rajan
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Publication number: 20180060509Abstract: Disclosed are embodiments of method and system to predict health condition of a human subject. The method comprises receiving historical human-subject related data including records corresponding to multiple data views. The method estimates one or more latent variables based on: a first value indicative of count of records in a cluster, a second value indicative of count of records, and a third value indicative of a parameter utilizable to predict a fourth value. The fourth value corresponds to selection probability of a D-vine pair copula family, of a D-vine mixture model, utilizable to model a cluster. The method generates the D-vine mixture model based on the estimated one or more latent variables. The method further comprises receiving multi-view data of a second human subject and predicting health condition of the second human subject based on the multi-view data using a classifier trained based on the estimated latent variables.Type: ApplicationFiled: August 29, 2016Publication date: March 1, 2018Inventors: Lavanya Sita Tekumalla, Vaibhav Rajan
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Publication number: 20180052961Abstract: According to embodiments illustrated herein, there is provided a system for predicting a health condition of a patient. The system further includes one or more processors configured to separately cluster data points from a set of medical records associated with a first class of patients and a second class of patients. A similarity value of each of the clustered data points with respect to a pre-selected subset of data points that represents landmark points may be determined, using a parameterized similarity measure. One or more classifiers are trained using the determined similarity value of each data point. The trained one or more classifiers are adapted to learn one or more parameters of the parameterized similarity measure during the training. An occurrence of the health condition of the patient may be predicted based on the trained one or more classifiers and one or more medical records of the patient.Type: ApplicationFiled: August 22, 2016Publication date: February 22, 2018Inventors: Harsh Shrivastava, Vijay Huddar, Sakyajit Bhattacharya, Vaibhav Rajan
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Patent number: 9870449Abstract: Disclosed are methods and systems for classifying one or more human subjects in one or more categories indicative of a health condition of the one or more human subjects. The method includes categorizing one or more parameters of each of the one or more human subjects in one or more data views based on a data type of each of the one or more parameters. A data view corresponds to a first data structure storing a set of parameters categorized in the data view, associated with each of the one or more human subjects. The one or more data views are transformed to a second data structure representative of the set of parameters across the one or more data views. Thereafter, a classifier is trained based on the second data structure, wherein the classifier classifies the one or more human subjects in the one or more categories.Type: GrantFiled: February 24, 2015Date of Patent: January 16, 2018Assignee: CONDUENT BUSINESS SERVICES, LLCInventors: Vaibhav Rajan, Abhishek Tripathi, Sakyajit Bhattacharya, Ranjan Shetty K, Amith Sitaram, Vivek G Raman
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METHOD AND SYSTEM TO PROCESS ELECTRONIC MEDICAL RECORDS FOR PREDICTING HEALTH CONDITIONS OF PATIENTS
Publication number: 20180011972Abstract: A method and a system are provided for processing electronic medical records for predicting a health condition of a patient. The method may determine a first set of datasets of a first patient based on one or more first electronic medical records. The method may extract one or more second sets of datasets of one or more second patients from a database server based on the first set of datasets. The method may generate one or more bipartite graphs based on the first set of datasets and the one or more second sets of datasets. The method may determine a set of edges from the one or more edges based on a matching score in each bipartite graph. The method may further predict the health condition of the first patient based on at least the matching score associated with each of the one or more bipartite graphs.Type: ApplicationFiled: July 8, 2016Publication date: January 11, 2018Inventors: Vaibhav Rajan, Vijay Huddar -
Publication number: 20170300646Abstract: What is disclosed is a system and method for forecasting and imputing an unknown vital measurement of a patient. Temporally successive patient vital measurements are received which comprise irregularly sampled observations {y1. . . , yN where yN denotes the jth observation at time tj and N is the number of samples. The vital measurements are then provided to a model trained using historical data of patient vital measurements. The model generates a parameter set ?=(A, B, C), where A is a state transition matrix, B is a control matrix, and C is a matrix which maps state-space variables to observation variables. The parameters are used to obtain state-space variable zt which, in turn, is used to forecast an unknown observation yN+1 or to impute an unknown observation yt, where 1<t<N. The historical data is then updated with the forecasted observation yN+1 or the imputed unknown observation yt.Type: ApplicationFiled: April 19, 2016Publication date: October 19, 2017Inventors: Abhishek SENGUPTA, Bhupendra Singh SOLANKI, Prathosh Aragulla PRASAD, Vaibhav RAJAN, Katerina Ocean SINCLAIR, Stephen FULLERTON, Satya Narayan SHUKLA
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CLUSTERING HIGH DIMENSIONAL DATA USING GAUSSIAN MIXTURE COPULA MODEL WITH LASSO BASED REGULARIZATION
Publication number: 20170293856Abstract: LASSO constraints can lead to a Gaussian mixture copula model that is more robust, better conditioned, and more reflective of the actual clusters in the training data. These qualities of the GMCM have been shown with data obtained from: digital images of fine needle aspirates of breast tissue for detecting cancer; email for detecting spam; two dimensional terrain data for detecting hills and valleys; and video sequences of hand movements to detect gestures. Using training data, a GMCM estimate can be produced and iteratively refined to maximize a penalized log likelihood estimate until sequential iterations are within a threshold value of one another. The GMCM estimate can then be used to classify further samples. The LASSO constraints help keep the analysis tractibe such that useful results can be found and used while the result is still useful.Type: ApplicationFiled: April 7, 2016Publication date: October 12, 2017Inventors: Sakyajit Bhattacharya, Vaibhav Rajan, Asim Anand -
Publication number: 20170286569Abstract: Systems and methods of modeling irregularly sampled time series signals with unknown temporal dynamics are disclosed wherein a temporal difference variable (TDV) is introduced to model irregular time differences between subsequent measurements. A hierarchical model is designed comprising two linear dynamical systems that model the effects of evolving TDV on temporal observations. All the parameters of the model, including the temporal dynamics are statistically estimated using historical data.Type: ApplicationFiled: March 29, 2016Publication date: October 5, 2017Inventors: Abhishek Sengupta, Prathosh Aragulla Prasad, Satya Narayan Shukla, Vaibhav Rajan, Katerina Sinclair, Stephen Fullerton
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Publication number: 20170286623Abstract: Disclosed are embodiments of methods and systems for predicting a health condition of a first human subject. The method comprises receiving a measure of one or more physiological parameters associated with the first human subject. The method estimates one or more latent variables based on a first count indicative of a number of the plurality of d-vines, a second count indicative of a number of the one or more records, a first value that is representative of a number of the one or more records clustered into a d-vine from the plurality of d-vines, and a second value that is representative of a parameter utilizable to predict a third value. The method generates the plurality of d-vines based on the estimated one or more latent variables. The method predicts health condition of the first human subject by utilizing a trained classifier based on the estimated one or more latent variables.Type: ApplicationFiled: April 5, 2016Publication date: October 5, 2017Inventors: Lavanya Sita Tekumalla, Vaibhav Rajan