Patents by Inventor Sergey Serebryakov
Sergey Serebryakov 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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Publication number: 20240153555Abstract: Systems and methods are provided for employing analog content addressable memory (aCAMs) to achieve low latency complex distribution sampling. For example, an aCAM core circuit can include an aCAM array. Amplitudes of a probability distribution function are mapped to a width of one or more aCAM cells in each row of the aCAM array. The aCAM core circuit can also include a resistive random access memory (RRAM) storing lookup information, such as information used for processing a model. By randomly selecting columns to search of the aCAM array, the mapped probability distribution function is sampled in a manner that has low latency. The aCAM core circuit can accelerate the sampling step in methods relying on sampling from arbitrary probability distributions, such as particle filter techniques. A hardware architecture for an aCAM Particle Filter that utilizes the aCAM core circuit as a central structure is also described.Type: ApplicationFiled: January 12, 2024Publication date: May 9, 2024Inventors: Catherine Graves, Giacomo Pedretti, Sergey Serebryakov, John Paul Strachan
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Publication number: 20240112029Abstract: A crossbar array includes a number of memory elements. An analog-to-digital converter (ADC) is electronically coupled to the vector output register. A digital-to-analog converter (DAC) is electronically coupled to the vector input register. A processor is electronically coupled to the ADC and to the DAC. The processor may be configured to determine whether division of input vector data by output vector data from the crossbar array is within a threshold value, and if not within the threshold value, determine changed data values as between the output vector data and the input vector data, and write the changed data values to the memory elements of the crossbar array.Type: ApplicationFiled: December 5, 2023Publication date: April 4, 2024Inventors: Sai Rahul Chalamalasetti, Paolo Faraboschi, Martin Foltin, Catherine Graves, Dejan S. Milojicic, John Paul Strachan, Sergey Serebryakov
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Publication number: 20240046988Abstract: Embodiments of the disclosure provide a system, method, or computer readable medium for providing a differentiable content addressable memory (aCAM) that implements an analog input analog storage and analog output learning memory. The analog output of the differentiable CAM can provide input to a learning algorithm, which may compute the gradients in comparison to historic values and reduce data inaccuracies and power consumption.Type: ApplicationFiled: July 28, 2022Publication date: February 8, 2024Inventors: GIACOMO PEDRETTI, Catherine GRAVES, Sergey SEREBRYAKOV, John Paul STRACHAN
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Patent number: 11881261Abstract: Systems and methods are provided for employing analog content addressable memory (aCAMs) to achieve low latency complex distribution sampling. For example, an aCAM core circuit can include an aCAM array. Amplitudes of a probability distribution function are mapped to a width of one or more aCAM cells in each row of the aCAM array. The aCAM core circuit can also include a resistive random access memory (RRAM) storing lookup information, such as information used for processing a model. By randomly selecting columns to search of the aCAM array, the mapped probability distribution function is sampled in a manner that has low latency. The aCAM core circuit can accelerate the sampling step in methods relying on sampling from arbitrary probability distributions, such as particle filter techniques. A hardware architecture for an aCAM Particle Filter that utilizes the aCAM core circuit as a central structure is also described.Type: GrantFiled: December 17, 2021Date of Patent: January 23, 2024Assignee: Hewlett Packard Enterprise Development LPInventors: Catherine Graves, Giacomo Pedretti, Sergey Serebryakov, John Paul Strachan
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Patent number: 11868855Abstract: In exemplary aspects, a golden data structure can be used to validate the stability of machine learning (ML) models and weights. The golden data structure includes golden input data and corresponding golden output data. The golden output data represents the known correct results that should be output by a ML model when it is run with the golden input data as inputs. The golden data structure can be stored in a secure memory and retrieved for validation separately or together with the deployment of the ML model for a requested ML operation. If the golden data structure is used to validate the model and/or weights concurrently with the performance of the requested operation, the golden input data is combined with the input data for the requested operation and run through the model. Relevant outputs are compared with the golden output data to validate the stability of the model and weights.Type: GrantFiled: November 4, 2019Date of Patent: January 9, 2024Assignee: Hewlett Packard Enterprise Development LPInventors: Sai Rahul Chalamalasetti, Sergey Serebryakov, Dejan S. Milojicic
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Publication number: 20230418792Abstract: Systems and methods are provide for automatically constructing data lineage representations for distributed data processing pipelines. These data lineage representations (which are constructed and stored in a central repository shared by the multiple data processing sites) can be used to among other things, clone the distributed data processing pipeline for quality assurance or debugging purposes. Examples of the presently disclosed technology are able to construct data lineage representations for distributed data processing pipelines by (1) generating a hash content value for universally identifying each data artifact of the distributed data processing pipeline across the multiple processing stages/processing sites of the distributed data processing pipeline; and (2) creating an data processing pipeline abstraction hierarchy for associating each data artifact to input and output events for given executions of given data processing stages (performed by the multiple data processing sites).Type: ApplicationFiled: June 28, 2022Publication date: December 28, 2023Inventors: Annmary Justine KOOMTHANAM, Suparna Bhattacharya, Aalap Tripathy, Sergey Serebryakov, Martin Foltin, Paolo Faraboschi
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Patent number: 11853846Abstract: A crossbar array includes a number of memory elements. An analog-to-digital converter (ADC) is electronically coupled to the vector output register. A digital-to-analog converter (DAC) is electronically coupled to the vector input register. A processor is electronically coupled to the ADC and to the DAC. The processor may be configured to determine whether division of input vector data by output vector data from the crossbar array is within a threshold value, and if not within the threshold value, determine changed data values as between the output vector data and the input vector data, and write the changed data values to the memory elements of the crossbar array.Type: GrantFiled: April 30, 2018Date of Patent: December 26, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: Sai Rahul Chalamalasetti, Paolo Faraboschi, Martin Foltin, Catherine Graves, Dejan S. Milojicic, John Paul Strachan, Sergey Serebryakov
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Publication number: 20230344851Abstract: An example device includes processing circuitry and a memory. The memory includes instructions that cause the device to perform various functions. The functions include receiving datastreams from a plurality of sensors of a high performance computing system, classifying each datastream of the each sensor to one of a plurality of datastream models, selecting an anomaly detection algorithm from a plurality of anomaly detection algorithms for each datastream, determining parameters of the each anomaly detection algorithm, determining an anomaly threshold for each datastream, and generating an indication that the sensor associated with the datastream is acting anomalously.Type: ApplicationFiled: June 29, 2023Publication date: October 26, 2023Inventors: Sergey Serebryakov, Tahir Cader, Nanjundaiah Deepak
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Patent number: 11774956Abstract: Multi-metric artificial intelligence (AI)/machine learning (ML) models for detection of anomalous behavior of a machine/system are disclosed. The multi-metric AI/ML models are configured to detect anomalous behavior of systems having multiple sensors that measure correlated sensor metrics such as coolant distribution units (CDUs). The multi-metric AI/ML models perform the anomalous system behavior detection in a manner that enables both a reduction in the amount of sensor instrumentation needed to monitor the system's operational behavior as well as a corresponding reduction in the complexity of the firmware that controls the sensor instrumentation. As such, AI-enabled systems and corresponding methods for anomalous behavior detection disclosed herein offer a technical solution to the technical problem of increased failure rates of existing multi-sensor systems, which is caused by the presence of redundant sensor instrumentation that necessitates complex firmware for controlling the sensor instrumentation.Type: GrantFiled: March 19, 2021Date of Patent: October 3, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: Sergey Serebryakov, Tahir Cader, Deepak Nanjundaiah
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Patent number: 11750629Abstract: An example device includes processing circuitry and a memory. The memory includes instructions that cause the device to perform various functions. The functions include receiving datastreams from a plurality of sensors of a high performance computing system, classifying each datastream of the each sensor to one of a plurality of datastream models, selecting an anomaly detection algorithm from a plurality of anomaly detection algorithms for each datastream, determining parameters of the each anomaly detection algorithm, determining an anomaly threshold for each datastream, and generating an indication that the sensor associated with the datastream is acting anomalously.Type: GrantFiled: September 18, 2020Date of Patent: September 5, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: Sergey Serebryakov, Tahir Cader, Nanjundaiah Deepak
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Publication number: 20230197151Abstract: Systems and methods are provided for employing analog content addressable memory (aCAMs) to achieve low latency complex distribution sampling. For example, an aCAM core circuit can include an aCAM array. Amplitudes of a probability distribution function are mapped to a width of one or more aCAM cells in each row of the aCAM array. The aCAM core circuit can also include a resistive random access memory (RRAM) storing lookup information, such as information used for processing a model. By randomly selecting columns to search of the aCAM array, the mapped probability distribution function is sampled in a manner that has low latency. The aCAM core circuit can accelerate the sampling step in methods relying on sampling from arbitrary probability distributions, such as particle filter techniques. A hardware architecture for an aCAM Particle Filter that utilizes the aCAM core circuit as a central structure is also described.Type: ApplicationFiled: December 17, 2021Publication date: June 22, 2023Inventors: CATHERINE GRAVES, GIACOMO PEDRETTI, SERGEY SEREBRYAKOV, JOHN PAUL STRACHAN
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Patent number: 11644882Abstract: One embodiment provides a system and method for predicting network power usage associated with workloads. During operation, the system configures a simulator to simulate operations of a plurality of network components, which comprises embedding one or more event counters in each simulated network component. A respective event counter is configured to count a number of network-power-related events. The system collects, based on values of the event counters, network-power-related performance data associated with one or more sample workloads applied to the simulator; and trains a machine-learning model with the collected network-power-related performance data and characteristics of the sample workloads as training data 1, thereby facilitating prediction of network-power-related performance associated with a to-be-evaluated workload.Type: GrantFiled: June 2, 2021Date of Patent: May 9, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: Harumi Kuno, Alan Davis, Torsten Wilde, Daniel William Dauwe, Duncan Roweth, Ryan Dean Menhusen, Sergey Serebryakov, John L. Byrne, Vipin Kumar Kukkala, Sai Rahul Chalamalasetti
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Patent number: 11544540Abstract: Systems and methods are provided for implementing hardware optimization for a hardware accelerator. The hardware accelerator emulates a neural network. Training of the neural network integrates a regularized pruning technique to systematically reduce a number of weights. A crossbar array included in hardware accelerator can be programmed to calculate node values of the pruned neural network to selectively reduce the number of weight column lines in the crossbar array. During deployment, the hardware accelerator can be programmed to power off periphery circuit elements that correspond to a pruned weight column line to optimize the hardware accelerator for power. Alternatively, before deployment, the hardware accelerator can be optimized for area by including a finite number of weight column line. Then, regularized pruning of the neural network selectively reduces the number of weights for consistency with the finite number of weight columns lines in the hardware accelerator.Type: GrantFiled: May 10, 2019Date of Patent: January 3, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: John Paul Strachan, Sergey Serebryakov
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Publication number: 20220404235Abstract: Systems and methods are provided for improving statistical and machine learning drift detection models that monitor computing health of a data center environment. For example, the system can receive streams of sensor data from a plurality of sensors in a data center; clean the streams of sensor data; generate, using a machine learning (ML) model, an anomaly score and a dynamic threshold value based on the cleaned streams of sensor data; determine, using the ML model and based on the anomaly score and the dynamic threshold value, a correctness indicator for a first sensor in the plurality of sensors; and using the correctness indicator, correct the first sensor.Type: ApplicationFiled: June 17, 2021Publication date: December 22, 2022Inventors: TAHIR CADER, SERGEY SEREBRYAKOV, TORSTEN WILDE, JEFF HANSON
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Publication number: 20220390999Abstract: One embodiment provides a system and method for predicting network power usage associated with workloads. During operation, the system configures a simulator to simulate operations of a plurality of network components, which comprises embedding one or more event counters in each simulated network component. A respective event counter is configured to count a number of network-power-related events. The system collects, based on values of the event counters, network-power-related performance data associated with one or more sample workloads applied to the simulator; and trains a machine-learning model with the collected network-power-related performance data and characteristics of the sample workloads as training data 1, thereby facilitating prediction of network-power-related performance associated with a to-be-evaluated workload.Type: ApplicationFiled: June 2, 2021Publication date: December 8, 2022Inventors: Harumi Kuno, Alan Davis, Torsten Wilde, Daniel William Dauwe, Duncan Roweth, Ryan Dean Menhusen, Sergey Serebryakov, John L. Byrne, Vipin Kumar Kukkala, Sai Rahul Chalamalasetti
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Publication number: 20220300712Abstract: Artificial-intelligence (AI)-based question-answer (QA) trace analysis of a text corpus that identifies answers to a natural language question and assesses the manner in which those answers evolve over time based on associated context is described herein. A set of QA trace records can be generated that includes a collection of answers derived from a text corpus in response to a posed natural language question along with contextual information relating to the answers. The set of QA trace records can be ordered based on corresponding date attributes gleaned from the contextual information to produce a time-series of QA trace records that can be processed by various types of downstream processing. Such downstream processing can include data visualization, pattern recognition, or the like for assessing how an answer to a natural language question evolves over time, identifying patterns/trends that develop over time with respect to the set of answers, and so forth.Type: ApplicationFiled: March 22, 2021Publication date: September 22, 2022Inventors: Suparna BHATTACHARYA, Mayukh DUTTA, Manoj SRIVATSAV, Sergey SEREBRYAKOV
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Publication number: 20220299985Abstract: Multi-metric artificial intelligence (AI)/machine learning (ML) models for detection of anomalous behavior of a machine/system are disclosed. The multi-metric AI/ML models are configured to detect anomalous behavior of systems having multiple sensors that measure correlated sensor metrics such as coolant distribution units (CDUs). The multi-metric AI/ML models perform the anomalous system behavior detection in a manner that enables both a reduction in the amount of sensor instrumentation needed to monitor the system's operational behavior as well as a corresponding reduction in the complexity of the firmware that controls the sensor instrumentation. As such, AI-enabled systems and corresponding methods for anomalous behavior detection disclosed herein offer a technical solution to the technical problem of increased failure rates of existing multi-sensor systems, which is caused by the presence of redundant sensor instrumentation that necessitates complex firmware for controlling the sensor instrumentation.Type: ApplicationFiled: March 19, 2021Publication date: September 22, 2022Inventors: SERGEY SEREBRYAKOV, TAHIR CADER, DEEPAK NANJUNDAIAH
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Patent number: 11385863Abstract: Disclosed techniques provide for dynamically changing precision of a multi-stage compute process. For example, changing neural network (NN) parameters on a per-layer basis depending on properties of incoming data streams and per-layer performance of an NN among other considerations. NNs include multiple layers that may each be calculated with a different degree of accuracy and therefore, compute resource overhead (e.g., memory, processor resources, etc.). NNs are usually trained with 32-bit or 16-bit floating-point numbers. Once trained, an NN may be deployed in production. One approach to reduce compute overhead is to reduce parameter precision of NNs to 16 or 8 for deployment. The conversion to an acceptable lower precision is usually determined manually before deployment and precision levels are fixed while deployed.Type: GrantFiled: August 1, 2018Date of Patent: July 12, 2022Assignee: Hewlett Packard Enterprise Development LPInventors: Sai Rahul Chalamalasetti, Paolo Faraboschi, Martin Foltin, Catherine Graves, Dejan S. Milojicic, Sergey Serebryakov, John Paul Strachan
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Publication number: 20220121885Abstract: Testing for bias in a machine learning (ML) model in a manner that is independent of the code/weights deployment path is described. If bias is detected, an alert for bias is generated, and optionally, the ML model can be incrementally re-trained to mitigate the detected bias. Re-training the ML model to mitigate the bias may include enforcing a bias cost function to maintain a level of bias in the ML model below a threshold bias level. One or more statistical metrics representing the level of bias present in the ML model may be determined and compared against one or more threshold values. If one or more metrics exceed corresponding threshold value(s), the level of bias in the ML model may be deemed to exceed a threshold level of bias, and re-training of the ML model to mitigate the bias may be initiated.Type: ApplicationFiled: October 19, 2020Publication date: April 21, 2022Inventors: Sai Rahul Chalamalasetti, Dejan S. Milojicic, Sergey Serebryakov
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Patent number: 11294763Abstract: A computer system includes multiple memory array components that include respective analog memory arrays which are sequenced to implement a multi-layer process. An error array data structure is obtained for at least a first memory array component, and from which a determination is made as to whether individual nodes (or cells) of the error array data structure are significant. A determination can be made as to any remedial operations that can be performed to mitigate errors of significance.Type: GrantFiled: August 28, 2018Date of Patent: April 5, 2022Assignee: Hewlett Packard Enterprise Development LPInventors: John Paul Strachan, Catherine Graves, Dejan S. Milojicic, Paolo Faraboschi, Martin Foltin, Sergey Serebryakov