Sas Institute Inc.

Joshua David Griffin

Yan Xu

Lawrence Edmund Lewis

Xindian Long

Steven E Krueger

Jorge Manuel Gomes Da Silva

Scott Russell Pope

Seyedalireza Yektamaram

Liping Cai

Steven Joseph Gardner

Ralph Walter Abbey

Mohammadreza Nazari

Amirhassan Fallah Dizche

Xingqi Du

Yan Gao

Riadh Omheni

Wenwen Zhou

Jun Liu

Patrick Nathan Koch

Brett Alan Wujek

Oleg Borisovich Golovidov

Yu-Min Lin

Varunraj Valsaraj

David Bruce Elsheimer

Ruiwen Zhang

Raymond Eugene Wright

Pelin Cay

Manoj Keshavmurthi Chari

Natalia Summerville

Ricky Dee Tharrington, Jr

Connie Stout Dunbar

Nabaruna Karmakar

Amod Anil Ankulkar

Aishwarya Sharma

Jarad Forristal

Pei-Yi Tan

Bengt Wisen Pederson

Ben-hao Wang

Gregory Scott Dunbar

Girish Vinayak Kolapkar

Kiran Devidas Bhole

Kushawah Yogender Singh

Majid Jahani

Antony Nicholas Cooper

A system, method, and computer-program product includes selecting, by a controller node, a plurality of candidate hyperparameter search points from a hyperparameter search space; instructing, by the controller node, one or more worker nodes to concurrently train a plurality of machine learning models for a target number of epochs using the plurality of candidate hyperparameter search points; identifying, by the controller node, a collection of intermediate candidate hyperparameter search points that outperform a remainder of the plurality of candidate hyperparameter search points by evaluating a performance of the plurality of machine learning models after training for the target number of epochs; and performing, by the controller node, a crossover operation with the collection of intermediate candidate hyperparameter search points to identify one or more new candidate hyperparameter search points to test in the hyperparameter search space.

Systems and methods for parallel exploration of a hyperparameter search space

A system, method, and computer-program product includes commencing a parent computer process based on receiving a request to perform an analytical operation on one or more datasets, commencing at least one child computer process that is launched by the parent computer process when the parent computer process initiates an execution of the analytical operation on the one or more datasets, transmitting, by the at least one child computer process, a request to the parent computer process to retrieve the one or more datasets, writing, by the parent computer process, the one or more datasets to a cross-process queue based on the parent computer process receiving the requests, reading, by the at least one child computer process, the one or more datasets from the cross-process queue, and executing, using an analytical application executing on the least one child computer process, the analytical operation based on the one or more datasets.

Systems and methods for executing an analytical operation across a plurality of computer processes

A system, method, and computer-program product includes computing, by a controller node, a hyperparameter search space for a plurality of hyperparameters; selecting, by the controller node, a plurality of hyperparameter search points from the hyperparameter search space; instructing, by the controller node, one or more worker nodes to concurrently train a plurality of machine learning models based on the plurality of hyperparameter search points; receiving, from the one or more worker nodes, a plurality of performance metrics that measure a performance of the plurality of machine learning models; determining, by the controller node, one or more sets of optimal hyperparameter values based on the plurality of performance metrics; and outputting, by the controller node, the one or more sets of optimal hyperparameter values.

A system and method include dividing training data into training data blocks, determining a support vector subset, distributing the training data blocks and the support vector subset to worker machines, receiving a first set of sub-results from worker machines, combining the first set of sub-results, solving a linear system, distributing a first set of variables to worker machines, receiving a second set of sub-results from worker machines, selecting a step size value and sending the selected step size value to worker machines, receiving updated values of the first set of variables and second set of variables from worker machines, receiving a maximum residual error value from worker machines, selecting a maximum value of the maximum residual error values, responsive to determining that selected maximum value satisfies an optimality condition, outputting a weight value and a bias value, and predicting a label using the weight value and the bias value.

Distributed nonlinear support vector machines

A system, method, and computer-program product includes receiving, by a worker process, a plurality of chunks of data from a client process; deriving, by the worker process, an input pattern for feeding the plurality of chunks of data to a machine learning model; caching, by the worker process, a subset of data elements of the plurality of chunks of data specified by the input pattern based on a data caching policy; and training the machine learning model by feeding the subset of data elements cached by the worker process and a remainder of data elements in the plurality of chunks of data when requested by the input pattern.

Systems and methods for multi-language training of machine learning models

A system, method, and computer-program product includes receiving, by a controller node, a request to execute a client process associated with a first programming language and a plurality of threads; launching, by the controller node, a plurality of multi-language worker processes based on a number of threads associated with the client process; and instructing, by the controller node, the plurality of multi-language worker processes to execute the plurality of threads associated with the client process.

A system, method, and computer-program product includes selecting, by a controller node, a plurality of hyperparameter search points from a hyperparameter search space; instructing, by the controller node, one or more worker nodes to concurrently train a plurality of machine learning models for a target number of epochs using the plurality of hyperparameter search points; receiving, from the one or more worker nodes, a plurality of performance metrics that measure a performance of the plurality of machine learning models during the target number of epochs; and removing, by the controller node, one or more underperforming hyperparameter search points from the plurality of hyperparameter search points according to a pre-defined performance metric ranking criterion associated with the plurality of performance metrics.

A computer determines a solution to a nonlinear optimization problem. A conjugate gradient (CG) iteration is performed with a first order derivative vector and a second order derivative matrix to update a CG residual vector, an H-conjugate vector, and a residual weight vector. A CG solution vector is updated using a previous CG solution vector, the H-conjugate vector, and the residual weight vector. An eigenvector of the second order derivative matrix having a smallest eigenvalue is computed. A basis matrix is defined that includes a cubic regularization (CR) solution vector, a CR residual vector, the CG solution vector, the CG residual vector, and the eigenvector. A CR iteration is performed to update the CR solution vector. The CR residual vector is updated using the first order derivative vector, the second order derivative matrix, and the updated CR solution vector. The process is repeated until a stop criterion is satisfied.

Cubic regularization optimizer

A computing device selects new test configurations for testing software. (A) First test configurations are generated using a random seed value. (B) Software under test is executed with the first test configurations to generate a test result for each. (C) Second test configurations are generated from the first test configurations and the test results generated for each. (D) The software under test is executed with the second test configurations to generate the test result for each. (E) When a restart is triggered based on a distance metric value computed between the second test configurations, a next random seed value is selected as the random seed value and (A) through (E) are repeated. (F) When the restart is not triggered, (C) through (F) are repeated until a stop criterion is satisfied. (G) When the stop criterion is satisfied, the test result is output for each test configuration.

Automated machine learning test system

A computing device selects new test configurations for testing software. Software under test is executed with first test configurations to generate a test result for each test configuration. Each test configuration includes a value for each test parameter where each test parameter is an input to the software under test. A predictive model is trained using each test configuration of the first test configurations in association with the test result generated for each test configuration based on an objective function value. The predictive model is executed with second test configurations to predict the test result for each test configuration of the second test configurations. Test configurations are selected from the second test configurations based on the predicted test results to define third test configurations. The software under test is executed with the defined third test configurations to generate the test result for each test configuration of the third test configurations.

A computer trains a neural network. A neural network is executed with a weight vector to compute a gradient vector using a batch of observation vectors. Eigenvalues are computed from a Hessian approximation matrix, a regularization parameter value is computed using the gradient vector, the eigenvalues, and a step-size value, a search direction vector is computed using the eigenvalues, the gradient vector, the Hessian approximation matrix, and the regularization parameter value, a reduction ratio value is computed, an updated weight vector is computed from the weight vector, a learning rate value, and the search direction vector or the gradient vector based on the computed reduction ratio value, and an updated Hessian approximation matrix is computed from the Hessian approximation matrix, the predefined learning rate value, and the search direction vector or the gradient vector based on the reduction ratio value. The step-size value is updated using the search direction vector.

Deep learning model training system

A computing device determines an optimal number of threads for a computer task. Execution of a computing task is controlled in a computing environment based on each task configuration included in a plurality of task configurations to determine an execution runtime value for each task configuration. An optimal number of threads value is determined for each set of task configurations having common values for a task parameter value, a dataset indicator, and a hardware indicator. The optimal number of threads value is an extremum value of an execution parameter value as a function of a number of threads value. A dataset parameter value is determined for a dataset. A hardware parameter value is determined as a characteristic of each distinct executing computing device in the computing environment. The optimal number of threads value for each set of task configurations is stored in a performance dataset in association with the common values.

Optimal number of threads determination system

Growing community of inventors

Harrisburg, NC, United States of America

Joshua David Griffin