Abstract: Method and apparatus for measuring and influencing article selection in a social network are disclosed. A learning-and-guiding module tracks access to articles by users of the social network and determines patterns of users' attraction to articles based on contents of articles and attributes of users. The module utilizes learned user-articles characteristics to influence article selection through communicating with users through the social network. The module relies on historical usage data characterizing user's affinity to articles. To guard against usage data obsolescence due to shifting interests, usage data are frequently adjusted to place more emphasis on recent usage patterns.

Abstract: A method for controlling an inverter-based resource (IBR) connected to a power grid during a grid event includes operating the IBR based on a first virtual impedance reference prior to the grid event, the first virtual impedance reference being used for determining a first virtual impedance of the IBR defining a first virtual reactance and a first virtual resistance. The method also includes receiving an indication of a start of the grid event that causes a change in the first virtual impedance reference to a second virtual impedance reference. Immediately after the change in the first virtual impedance reference, the method includes activating a soft activation module for outputting a second virtual impedance defining a second virtual reactance and a second virtual resistance that maintains a magnitude of the second virtual impedance at or above a magnitude of the second virtual impedance reference so as to reduce current in the inverter-based resource.

Abstract: Technology is shown for verifying a leaf certificate in a PKI chain of trust involving receiving a leaf certificate signed by an intermediate certificate embedded in the leaf certificate. The intermediate certificate is extracted from the received leaf certificate and its public key used to calculate a signature for the received leaf certificate. The calculated signature is compared to a signature included in the received leaf certificate. The received leaf certificate is verified when the calculated signature matches the signature included in the received leaf certificate. The intermediate certificate can be included as a X.509 property of the leaf certificate.

Abstract: A method for controlling a network of inverter-based resources connected to a power grid during a disturbance includes employing a distributed transient virtual impedance algorithm among the network of inverter-based resources (IBRs) after a start of or in anticipation of the disturbance. The distributed transient virtual impedance algorithm includes determining, via at least one of one or more power flow equations, one or more energy function equations, and one or more estimated power capabilities, a virtual impedance control parameter and a modified power reference for one or more of the IBRs.

Abstract: A record processing and storage system operates by: receiving formatted row data that includes a fixed-length batch section and a temporary variable-length batch section; storing, in a compressed data format, at least one variable-length data value of each of a plurality of temporary variable-length row sections of each of the plurality of formatted row data; generating a plurality of modified formatted row data from the plurality of formatted row data by, for each formatted row data, replacing a fixed-length offset value for each variable-length field stored in the compressed data format with a key value utilized to access the corresponding variable-length data value in the compressed data format; and truncating the each formatted row data to remove inclusion of the temporary variable-length batch section; and storing the plurality of modified formatted row data as a plurality of pages in a page storage system.

Abstract: Systems, methods, and storage media for optimizing automated modelling of resource allocation are disclosed. Exemplary implementations include operations for: receive or retrieve by a computer system, operational information associated with a plurality of users; allocate, by the computer system, at least a first time portion to at least a first task associated with a first user of the plurality of users based on analysis of the operational information; and dynamically modify, by the computer system, the first time portion responsive to receiving or retrieving additional operational information over time.

Abstract: According to some embodiments, system and methods are provided including receiving, via a communication interface of an event detection and classification module comprising a processor, data from one or more sensors in a system; determining an event occurred based on the received data; applying a coherency similarity process to the received data via a classification module; determining whether the event is an actual event or a mal-doer event based on an output of the classification module; transmitting the determination of the event as the actual or the mal-doer event; and modifying operation of the system based on the transmitted output. Numerous other aspects are provided.

Abstract: A record processing and storage system is operable to receive a plurality of formatted record data. Each of the plurality of formatted record data includes a fixed-length batch section that includes a plurality of fixed-length row sections. Each of the plurality of fixed-length row sections includes at least one fixed-length data value at least one fixed-length offset value. Each of the plurality of formatted record data further includes a variable-length batch section that includes a plurality of variable-length row sections. Each of the plurality of variable-length row sections includes at least one variable-length data value, where the fixed-length offset value for the corresponding one of the plurality of records indicates an offset of the at least one variable-length data value in the each formatted record data. A plurality of pages that include the plurality of formatted record data are generated and stored in a page storage system.

Abstract: A processing system concurrency optimization system includes a processing system having first and second processing subsystems, a power system that is coupled to the first and second processing subsystems, a processing system concurrency optimization database, and a processing system concurrency optimization subsystem that is coupled to the power system and the processing system concurrency optimization database. The processing system concurrency optimization subsystem determines that a first workload has been provided for performance by the processing system, and identifies a first processing system concurrency optimization profile that is associated with the first workload in the processing system concurrency optimization database.

Abstract: A computing cooling system includes a chassis, heat dissipation device(s) in the chassis, a first fan system in the chassis configured to generate a first airflow that is directed past the heat dissipation device(s) and out of the chassis, and a second fan system in the chassis configured to generate a second airflow that is that is directed into the chassis. A board in the chassis includes a first board section located adjacent the first fan system, and a second board section located adjacent the second fan system and configured to receive the second airflow. The first board section includes first components that are thermally coupled to the heat dissipation device(s) and that are configured to operate in a first temperature range, and the second board section includes second components that are configured to operate in a second temperature range that is lower than the first temperature range.

Abstract: A computing device cooling system includes a chassis including chassis surface(s). The chassis houses component(s), chassis surface temperature sensor(s) configured to report a chassis surface temperature associated with the chassis surface(s), component temperature sensor(s) configured to report a component temperature associated with the component(s); a first fan system configured to generate a component cooling airflow that reduces the component temperature of the component(s), and a second fan system configured to generate a chassis surface cooling airflow that reduces the chassis surface temperature of the chassis surface(s). A fan control system is coupled to the chassis surface temperature sensor(s), the component temperature sensor(s), the first fan system, and the second fan system.

Abstract: A phase change memory cell for a semiconductor device that includes a heater element on a first conductive layer with a spacer surrounding sides of the heater element. The phase change memory cell includes a first dielectric layer on the conductive layer and on a bottom portion of the spacer surrounding the heater element and a second dielectric layer on the first dielectric layer surrounding a top portion of the heater element. The phase change memory cell includes a phase change material on a top surface of the heater element and on the second dielectric material.

Abstract: A renewable power system is provided. The renewable power system includes a plurality of power generating devices and a plurality of power converters. Each power converter of the plurality of power converters is electrically coupled to at least one power generating device of the plurality of power generating devices and a load. The renewable power system further includes a plurality of controllers. Each of the plurality of controllers includes a processor coupled in communication with at least one power converter of the plurality of power converters. The processor is configured to detect a load power of the load, determine an available power of the plurality of power generating devices, and, in response to the load exceeding the available power of the plurality of power generating devices, adjust at least one parameter of the at least one power converter.

Abstract: The present invention relates to controlling a 2D application in a mixed reality application. In order to provide further simplification in terms of operating devices and equipment for the medical personnel, a device (10) for controlling a 2D application in a mixed reality application is provided. The device comprises a 2D application interface (12), a processor (14), a mixed reality application interface (16) and a control interface (18). The 2D application interface receives data representative of a 2D application. The application comprises interactive elements providing commands for user control of the 2D application. The processor identifies and extracts the interactive elements based on the data representative of the 2D application. The processor also translates the interactive elements to user interface features of a mixed reality display application.

Abstract: Method and system with federated learning model for health care applications are disclosed. The system for federated learning comprises multiple edge devices of end users, one or more federated learner update repository, and one or more cloud. Each edge device comprises a federated learner model, configured to send tensors to federated learner update repository. Cloud comprises a federated learner model, configured to send tensors to federated learner update repository. Federated learner update repository comprises a back-end configuration, configured to send model updates to edge devices and cloud.

Abstract: A method for controlling a network of inverter-based resources (IBRs) during a disturbance includes, in response to a start of the disturbance, employing a system-level overload ride-through (SLORT) algorithm among the network of IBRs. The SLORT algorithm includes determining, via a SLORT control module, a modified parameter set for one or more of the IBRs using regularly-updated system-level analyses, transmitting, via the SLORT control module, the modified parameter set to the IBRs, and automatically activating, via one or more local controllers of the IBRs, the modified parameter set, wherein automatically activating the modified parameter set comprises rapidly re-parameterizing one or more parameters of the one or more of the IBRs for a duration of and for a time period after the disturbance so as to transition the network of IBRs from a pre-disturbance stable state to a post-disturbance stable state.

Abstract: A method for controlling a network of inverter-based resources connected to a power grid during a disturbance includes employing a distributed transient virtual impedance algorithm among the network of inverter-based resources (IBRs) after a start of or in anticipation of the disturbance. The distributed transient virtual impedance algorithm includes determining, via at least one of one or more power flow equations, one or more energy function equations, and one or more estimated power capabilities, a virtual impedance control parameter and a modified power reference for one or more of the IBRs.

Abstract: A method for controlling an inverter-based resource (IBR) connected to a power grid during a grid event includes operating the IBR based on a first virtual impedance reference prior to the grid event, the first virtual impedance reference being used for determining a first virtual impedance of the IBR defining a first virtual reactance and a first virtual resistance. The method also includes receiving an indication of a start of the grid event that causes a change in the first virtual impedance reference to a second virtual impedance reference. Immediately after the change in the first virtual impedance reference, the method includes activating a soft activation module for outputting a second virtual impedance defining a second virtual reactance and a second virtual resistance that maintains a magnitude of the second virtual impedance at or above a magnitude of the second virtual impedance reference so as to reduce current in the inverter-based resource.

Abstract: A record processing and storage system is operable to receive a plurality of formatted record data. Each of the plurality of formatted record data includes a fixed-length batch section that includes a plurality of fixed-length row sections. Each of the plurality of fixed-length row sections includes at least one fixed-length data value at least one fixed-length offset value. Each of the plurality of formatted record data further includes a variable-length batch section that includes a plurality of variable-length row sections. Each of the plurality of variable-length row sections includes at least one variable-length data value, where the fixed-length offset value for the corresponding one of the plurality of records indicates an offset of the at least one variable-length data value in the each formatted record data. A plurality of pages that include the plurality of formatted record data are generated and stored in a page storage system.

Abstract: The technology disclosed provides systems and methods related to preventing exfiltration of training data by feature reconstruction attacks on model instances trained on the training data during a training job. The system comprises a privacy interface that presents a plurality of modulators for a plurality of training parameters. The modulators are configured to respond to selection commands via the privacy interface to trigger procedural calls. The procedural calls modify corresponding training parameters in the plurality of training parameters for respective training cycles in the training job. The system comprises a trainer configured to execute the training cycles in dependence on the modified training parameters. The trainer can determine a performance accuracy of the model instances for each of the executed training cycles.