Abstract: Techniques relating to streaming video are disclosed. These techniques include identifying one or more streaming video sessions for one or more users based on a plurality of events relating to streaming video for the one or more users. The techniques further include storing data for the one or more streaming video sessions in an electronic database, based on the plurality of events, identifying a plurality of metadata relating to the events, and determining, based on a threshold value, a time to store at least a portion of the plurality of metadata in the electronic database, the time occurring after the storing the data for the one or more streaming video sessions. The techniques further include responding to a query for metrics relating to the one or more streaming video sessions by aggregating at least a portion of the stored data.

Abstract: An apparatus includes a first member coupled to a second member. The first member defines a chamber containing a dry powder and includes a chamber wall that forms an outer boundary of the chamber. The second member includes a surface covering the chamber and defines an intake channel and an exit channel. The exit channel is fluidically coupled to the chamber via an exit opening. The intake channel is fluidically coupled to the chamber via an intake port. A center line of the intake channel is tangential to a portion of the chamber wall such that a portion of an inlet airflow conveyed into the chamber via the intake channel has a rotational motion. The intake port is defined at least in part by an intake ramp. The intake ramp includes a transition surface that forms an exit angle with respect to the surface of less than 105 degrees.

Abstract: Aspects comprise systems implementing 3-D graphics processing functionality in a multiprocessing system. Control flow structures are used in scheduling instances of computation in the multiprocessing system, where different points in the control flow structure serve as points where deferral of some instances of computation can be performed in favor of scheduling other instances of computation. In some examples, the control flow structure identifies particular tasks, such as intersection testing of a particular portion of an acceleration structure, and a particular element of shading code. In some examples, the aspects are used in 3-D graphics processing systems that can perform ray tracing based rendering.

Abstract: The disclosure relates to a patient interface for non-invasive ventilation. The patient interface is configured to seal about the mouth and nares of a patient and includes an outer wall defining an interior volume which includes a first chamber having one or more oral openings to communicate gas with the mouth and a second chamber having one or more nare openings to communicate gas with the nares. The patient interface further includes a dividing wall that separates the first chamber from the second chamber. The patient interface further includes one or more flow directors which enable gas to flow into the second chamber from the first chamber the first chamber from the second chamber. The one or more flow directors are configured to direct the gas flow through the one or more nare openings.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for training a machine learning model. A method includes: maintaining a plurality of training sessions; assigning, to each worker of one or more workers, a respective training session of the plurality of training sessions; repeatedly performing operations until meeting one or more termination criteria, the operations comprising: receiving an updated training session from a respective worker of the one or more workers, selecting a second training session, selecting, based on comparing the updated training session and the second training session using a fitness evaluation function, either the updated training session or the second training session as a parent training session, generating a child training session from the selected parent training session, and assigning the child training session to an available worker, and selecting a candidate model to be a trained model for the machine learning model.

Abstract: A system for monitoring networked computing devices with integrated electronic data encryption and decryption mechanism is provided. In particular, the system may comprise one or more host applications which may interact with an API layer to transmit encrypted host-related data through a secure data rails to a consolidated data repository. One or more downstream monitoring applications may retrieve and decrypt the host-related data from the consolidated data repository for analysis. In this way, the system may provide a secure, scalable way to monitor host computing systems and flow of sensitive electronic data.

Abstract: The invention relates to a method (100) for determining a hydrocarbon-water contact position in a hydrocarbon reservoir, said method comprising the steps of: —Providing (110) at least two reservoir fluid samples collected, from connected hydrocarbon reservoir(s), at different known sampling depth values, —Measuring (120) abundance of at least one isotope of noble gas from each of the at least two reservoir fluid samples, and —Calculating (130) the hydrocarbon-water contact position in the hydrocarbon reservoir from the measured abundances and the known sampling depth values of the at least two reservoir fluid samples.

Abstract: With the advent of augmented reality devices becoming increasingly prevalent, accessible, and cross-compatible, there is an opportunity to leverage the capabilities of such devices in order to streamline user interactions related to complex resource activities which require elevated security and typically are only conducted on an in-person basis. The present invention provides systems and methods for securely verifying a user during an augmented reality device session for the purposes of conducting complex resource activities.

Abstract: Various aspects of the disclosure relate to a unified framework application programming interface (API) to facilitate communicate between applications developed using different technology stacks. The unified framework API integrates communication functionality for each different technology stacks into unified publication and subscription API functions such that each application calls the unified framework API functions to publish information or to subscribe to receive published information. Each application publishes data using its native communication protocol and receives data in its native format, where the unified framework API performs an automatic translation of the information as needed.

Abstract: A system and method for determining event discrepancies between disparate systems is described. The system can receive sets of events from multiple systems. The system can normalize the sets of events to convert them into normalized events. From a normalized set of events, the system can concurrently generate a plurality of event arrays. The system can apply one or more rules to the event arrays to generate at least one event array parameter.

Abstract: An apparatus for performing dental surgery includes a central processing unit that controls automated operation of the apparatus and a display that renders an image of a target tooth requiring surgical intervention. The image of a target tooth being created from an image file received from the central processing unit. An input device receives surgical instructions from a user for providing the surgical intervention. The instructions are provided to the central processing unit for process. The surgical instructions include visual indications on the image of a target tooth that is to be treated. A robotic arm that includes an end effector is in communication with the central processing unit. The central processing unit controls the robotic arm to remove a region of the target tooth. The system also simultaneously mills the final tooth restoration in a separate milling chamber.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for training an action selection neural network used to select actions to be performed by an agent interacting with an environment. In one aspect, a system comprises a plurality of actor computing units and a plurality of learner computing units. The actor computing units generate experience tuple trajectories that are used by the learner computing units to update learner action selection neural network parameters using a reinforcement learning technique. The reinforcement learning technique may be an off-policy actor critic reinforcement learning technique.

Abstract: The description relates to prototyping systems, including hubs for electrically connecting devices. One example can include an electrically insulative substrate and at least two connector tabs defined by the substrate, each connector tab including a data contact, a power contact, and a ground contact positioned over the substrate. A data bus can be positioned relative to the substrate and electrically connect all of the data contacts, a power bus can be positioned relative to the substrate and electrically connect all of the power contacts, and a ground bus can be positioned relative to the substrate and electrically connect all of the ground contacts.

Abstract: Computer systems and associated methods are disclosed to implement the non-interactive join of privacy-preserving dataset sketches. In some embodiments, an entity can publish a one-time sketch of their dataset that would enable another entity to join their data without exposing private information. The sketch can map, using a hash function, the identities associated with a first value of the dataset to a data structure, in some embodiments. A same or different entity can join the first sketch with a privacy-preserving second sketch of a second dataset that includes added noise, and can determine an estimate of a number of identities that correspond with specific values of the first and second datasets from the joined dataset. The sketch can be published just one time, and therefore does not require separate new private computations with privacy budgeting for each additional party when a join is desired, in some embodiments.

Abstract: The description relates to prototyping systems, including hubs for electrically connecting devices. One example can include an electrically insulative substrate and at least two connector tabs defined by the substrate. Each connector tab can include a data contact a power contact and a ground contact positioned on the substrate. A data bus can be positioned relative to the substrate and electrically connect all of the data contacts, a power bus can be positioned relative to the substrate and electrically connect all of the power contacts and a ground bus can be positioned relative to the substrate and electrically connect all of the ground contacts in accordance with a first prototyping format. The example can also include adapter contacts positioned on the substrate and configured to electrically connect to a data contact, a power contact, and a ground contact of another device that complies with a second different prototyping format.

Abstract: A drug delivery system for injecting a medicament includes a housing, a container configured to receive a medicament including a stopper configured to move within the container and a closure, a needle in fluid communication with the container, a spacer configured to be engaged with the stopper, a first plunger, a first spring configured to bias the first plunger in an axial direction, second plunger disposed about the first plunger, a second spring configured to bias the second plunger in an axial direction. The first plunger is configured to move the spacer and the container relative to the housing via the first spring to establish fluid communication between the container and the patient needle, and the second plunger is configured to move the spacer and the stopper relative to the container via the second spring.

Abstract: With the advent of augmented reality devices becoming increasingly prevalent, accessible, and cross-compatible, there is an opportunity to leverage the capabilities of such devices in order to streamline user interactions related to complex resource activities which require elevated security and typically are only conducted on an in-person basis. The present invention provides systems and methods for securely verifying a user during an augmented reality device session for the purposes of conducting complex resource activities.

Abstract: The disclosed exemplary embodiments include computer-implemented systems, devices, and processes that securely distribute digital assets within a computing environment using permissioned distributed ledgers. For example, an apparatus may receive, from a computing system, an allocation request, a first digital signature applied to the allocation request, and a second digital signature applied to the allocation request and to the first digital signature. Based on a validation of the first and second digital signatures, the apparatus may approve the allocation request and allocate a digital asset to the first device in accordance with the approved allocation request. The apparatus may also perform operations that record a public key and asset data identifying a digital asset onto a distributed ledger, and may generate and transmit, to the first device, confirmation data indicative of the allocation of the digital asset to the first device.

Abstract: A suction catheter system is described with a suction nozzle that can extend from a guide catheter of the like. The suction nozzle can be positioned by tracking the suction nozzle through a vessel while moving a proximal portion of the suction extension within the lumen of the guide catheter. A suction lumen extends from the proximal end of the guide catheter through at least part of the guide catheter central lumen and through the suction tip. Desirable suction flow can be established using the guide lumen to facilitate the suction. Also, a delivery catheter is described with an elastic tip that can track closely over a guidewire. The elastic tip of the delivery catheter can be expanded to provide for the delivery of medical devices past the tip.