Abstract: Examples disclosed herein relate to propagating changes made on a file system volume of a primary cluster of nodes to the same file system volume also being managed by a secondary cluster of nodes. An application is executed on both clusters, and data changes on the primary cluster are mirrored to the secondary cluster using an exo-clone file. The exo-clone file includes the differences between two or more snapshots of the volume on the primary cluster, along with identifiers of the change blocks and (optionally) state information thereof. Just these changes, identifiers, and state information are packaged in the exo-clone file and then exported to the secondary cluster, which in turn makes the changes to its version of the volume. Exporting just the changes to the data blocks and the corresponding block identifiers drastically reduces the information needed to be exchanged and processed to keep the two volumes consistent.

Abstract: Methods and systems are described for monitoring, at a source device, the rendering at a destination device of content received by the destination device from the source device. In one use case, a source device monitors the fidelity of screen-sharing by a remote device. At the destination device, a metric is generated characterizing the content rendered at the destination device. Using this metric, the similarity between the content rendered at the destination device and source content transmitted by the source device is estimated. An indication of the estimated similarity is then displayed on a display associated with the source device.

Abstract: A computer-implemented method, comprising receiving, by a computer system, binary image data, the computer system configured to detect a pixel value in the binary image data to represent a non-machine language value related to the binary image data; determining, by the computer system, that the binary image data further comprises at least a pixel value that is altered in a manner to change the non-machine language value related to the binary image data when read by an image recognition system; and alerting, by the computer system, to the image recognition system to review the binary image data.

Abstract: Described herein are methods and systems for controlling the charge and discharge characteristics of lithium-metal liquid-electrolyte (LiMLE) electrochemical cells that ensure extended cycle life even at high charge rates. In some examples, a method comprises charging a LiMLE electrochemical cell using a set of charge characteristics and discharging the cell using a set of discharge characteristics. These characteristics are specifically tailored to the cell design. For example, the cell temperature can be higher during the charge than during the discharge, especially for viscous electrolytes. For example, the cell can be heated before charging, e.g., using a separate heater and/or charge-discharge pulses (before or while charging the cell). In the same or other examples, the set of charge characteristics comprises charge pulses such that each pair of charge pulses is separated by a discharge pulse. The current during each discharge pulse can be greater during each charge pulse.

Abstract: Methods for processing a 3D point cloud of a building into polygons using an electronic computing device are presented, the methods including: causing the electronic computing device to receive the 3D point cloud; causing the electronic computing device to segment the 3D point cloud into a number of facades; and causing the electronic computing device to generate a number of polygons representing the number of facades. In some embodiments, the causing the electronic computing device to segment the 3D point cloud into a number of facades includes: performing voxel downsampling operation on the 3D point cloud; calculating a point normal for every point in the voxel downsampled 3D point cloud; and performing region growing to find each of the number of facades.

Abstract: Described herein are battery assemblies that comprise lithium-metal electrochemical cells and pressure-applying structures disposed adjacent to the cells and applying uniform pressure to the cells. Specifically, this uniform pressure is applied between a minimum threshold and a maximum threshold at any operating state of charge of these cells and, in some examples, over the entire operating lifetime of the cells. A pressure-applying structure can be positioned between a pair of adjacent cells or between a cell and an assembly enclosure. In some examples, the footprint of the pressure-inducing structure fully covers the footprint of the negative-electrode planar portion. The pressure-inducing structure may have a stress relaxation of less than 5% and/or a compression set of less than 10%. The pressure-inducing structure may remain in an elastic deformation region at any operating condition. In some examples, the pressure-inducing structure is foam or aerogel.

Abstract: Described herein are battery assemblies that comprise lithium-metal electrochemical cells and lithium-ejecta containment components. A lithium-ejecta containment component is configured to prevent or at least reduce the migration of lithium metal that has been ejected from any of the lithium-metal electrochemical cells. For example, a lithium-ejecta containment component can be positioned between a pair of lithium-metal electrochemical cells and/or between the battery-assembly enclosure and each cell. In the same or other examples, a lithium-ejecta containment component can be integrated into the battery-assembly enclosure and/or cell enclosures. Furthermore, a lithium-ejecta containment component can be configured to absorb and contain the ejected lithium metal. In further examples, a lithium-ejecta containment component is configured to direct the ejected lithium metal away from the battery assembly.

Abstract: Methods for processing a 3D point cloud of a building into polygons using an electronic computing device are presented, the methods including: causing the electronic computing device to receive the 3D point cloud; causing the electronic computing device to segment the 3D point cloud into a number of facades; and causing the electronic computing device to generate a number of polygons representing the number of facades. In some embodiments, the causing the electronic computing device to segment the 3D point cloud into a number of facades includes: performing voxel downsampling operation on the 3D point cloud; calculating a point normal for every point in the voxel downsampled 3D point cloud; and performing region growing to find each of the number of facades.

Abstract: Methods and systems to train artificial intelligence modules are described, which protect privacy of sensitive data by virtue of the fact that the data source extracts blocks of partial data from the source item of content and distributes the extracted partial data to a plurality of processing nodes in an intermediate processing system. The processing nodes each perform an initial portion of the training process, for example by performing a convolution of the partial data, to produce a partial model. The partial models are transmitted to a merging module which amalgamates them and completes the training process to generate a global model for the AI task.

Abstract: A method of fabricating a casting, the method including applying a substrate to a sacrificial mold, the sacrificial mold including a shaped non-planar receiving surface to receive the substrate and provide a casting of the substrate having a shaped structure corresponding to the receiving surface; and subjecting the sacrificial mold and casting to freeze drying conditions and sublimating the sacrificial mold from the casting to form a cast article including the shaped non-planar structure.

Abstract: An apparatus for providing a connector for a microwave filter port is disclosed. According to one aspect, a subassembly includes a connector having a connector pin, a connector seat having a pass through conduit with a first opening for receiving the connector with the connector pin and a second opening at an opposite end of the pass through conduit, the connector pin protruding from the second opening when the connector is mounted to the connector seat. The subassembly further includes a coupling conductor soldered to the connector pin, where the coupling conductor is configured to be soldered to the connector pin before insertion of the subassembly into a channel of the microwave filter port.

Abstract: A method of fabricating a casting, the method including applying a substrate to a sacrificial mold, the sacrificial mold including a shaped non-planar receiving surface to receive the substrate and provide a casting of the substrate having a shaped structure corresponding to the receiving surface; and subjecting the sacrificial mold and casting to freeze drying conditions and sublimating the sacrificial mold from the casting to form a cast article including the shaped non-planar structure.

Abstract: A service may provide an e-commerce platform through which users may search for, view, and purchase products. To ensure users receive relevant results when querying for particular products or product classes, a list of ranked classes may be generated, from which the query results are based. For example, products may be classified into classes and particular text from search data may be associated with one or more of the products based on click log data. For instance, input text from previously performed queries may be associated with products interacted with following those queries (e.g., products clicked on to view/purchase). Training data that associates the particular text with the respective one or more classes into which the clicked on products are classified may be generated, and in response to receiving a query including the particular text as input, the list of ranked classes may be generated based on the training data.

Abstract: A computer-implemented method, comprising receiving, by a computer system, binary image data, the computer system configured to detect a pixel value in the binary image data to represent a non-machine language value related to the binary image data; determining, by the computer system, that the binary image data further comprises at least a pixel value that is altered in a manner to change the non-machine language value related to the binary image data when read by an image recognition system; and alerting, by the computer system, to the image recognition system to review the binary image data.

Abstract: A service may provide an e-commerce platform through which users may search for, view, and purchase products. To ensure users receive relevant results when querying for particular products or product classes, a list of ranked classes may be generated, from which the query results are based. For example, products may be classified into classes and particular text from search data may be associated with one or more of the products based on click log data. For instance, input text from previously performed queries may be associated with products interacted with following those queries (e.g., products clicked on to view/purchase). Training data that associates the particular text with the respective one or more classes into which the clicked on products are classified may be generated, and in response to receiving a query including the particular text as input, the list of ranked classes may be generated based on the training data.

Abstract: A method of fabricating a casting, the method including applying a substrate to a sacrificial mold, the sacrificial mold including a shaped non-planar receiving surface to receive the substrate and provide a casting of the substrate having a shaped structure corresponding to the receiving surface; and subjecting the sacrificial mold and casting to freeze drying conditions and sublimating the sacrificial mold from the casting to form a cast article including the shaped non-planar structure.

Abstract: A microfilter, a manufacturing method thereof, and a microfiltration unit for holding the microfilter are provided. The microfilter has: a non-epoxy based microfilm; and a plurality of microholes provided on the surface of the non-epoxy based microfilm and penetrating therethrough via UV laser ablation, wherein the surface of the non-epoxy based microfilm is patterned into predetermined sections for locating isolated targets and quick enumeration.

Abstract: A service may provide an e-commerce platform through which users may search for, view, and purchase products. To ensure users receive relevant results when querying for particular products or product classes, a list of ranked classes may be generated, from which the query results are based. For example, products may be classified into classes and particular text from search data may be associated with one or more of the products based on click log data. For instance, input text from previously performed queries may be associated with products interacted with following those queries (e.g., products clicked on to view/purchase). Training data that associates the particular text with the respective one or more classes into which the clicked on products are classified may be generated, and in response to receiving a query including the particular text as input, the list of ranked classes may be generated based on the training data.

Abstract: Utilizing vision systems at a wellsite, which may include operating a video camera to generate a video signal comprising images of one or more pieces of equipment or components and receiving the video signal by a processing system, which may then process the images to monitor or determine physical and/or operational characteristics associated with the one or more pieces of equipment in the images. The physical and/or operational characteristics may include amount of stretch of a drill string extending within a wellbore and/or amount of stretch an uppermost tubular of a drill string extending within a wellbore.