Abstract: Calls received by a data center that are associated with a request are monitored. Features are subsequently extracted from the monitored calls so that a machine learning model may use such features to determine that the request will cause the data center to malfunction. The machine learning model can be trained using data derived from a transaction log for the data center. At least one correction action to prevent the data center from malfunctioning can then be initiated in response to such determination. Related apparatus, systems, techniques and articles are also described.

Abstract: Compilation is initiated of previously-compiled code in which only a subset of the previously-compiled code was modified since a previous compilation. Thereafter, modified code corresponding to the subset of the previously-compiled code that was modified since the previous compilation is identified. Further, dependent code within the previously-compiled code that is dependent on the modified code is also identified. Using this information, only the identified modified code and the dependent code can be compiled. In some variations, at least a portion of the other parts of the previously-compiled code can be reused. Related apparatus, systems, techniques and articles are also described.

Abstract: Methods for treating subterranean formations are provided. In one embodiment, the methods comprise providing a treatment fluid comprising an aqueous base fluid and a surfactant comprising an ethoxylated amine or derivative thereof; introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation; and producing fluids from the wellbore during or subsequent to introducing the treatment fluid into the wellbore.

Abstract: Each of a plurality of resource files can be instrumented. Thereafter, usage data of the received files is received from a plurality of clients each executing a different instance of a web application. The usage data comprises is collected by the instances of the web application when being used by a respective one of a plurality of users. A dependencies list is then generated for the resource files based on the received usage data. In addition, a priorities list is generated for the resource files using the received usage data which indicates how frequently the resource files are being used. Further, groups of resource files are generated based on co-occurrence levels of the resource files in the dependencies list and the priorities list. Later, at least a portion of the groups of resource files are transmitted to the client for caching in a local cache pool. Related apparatus, systems, techniques and articles are also described.

Abstract: Described herein is a high confidence ground truth information service executing on a network of edge computing devices. A variety of participating devices obtain high confidence ground truth information relating to objects in a local environment. This information is communicated to the ground truth information service, where it may be verified and aggregated with similar information before being communicated as part of an acquired ground truth dataset to one or more subscribing devices. The subscribing devices use the ground truth information, as included in the ground truth dataset, to both validate and improve their supervised learning systems.

Abstract: Disclosed herein are systems and methods for dynamically minimizing a perceived risk for a multimodal mobility service, The systems and methods may include identifying a safety-related attribute for a route from a starting location to an ending location. The safety-related attribute may be associated with a perceived risk for a dimension of the route. A risk score for the route may be determined using the safety-related attribute. The risk score for the multimodal mobility service based on the perceived risk for the dimension of the route.

Abstract: Disclosure herein are systems and methods for deploying an autonomous vehicle during an idle time. As disclosed herein, a request for a mobility service may be received. The request may include constraints for usage of the autonomous vehicle. An optimal mobility service strategy may be determined based on the constraints. The optimal mobility service strategy may be selected from a plurality of mobility service strategies. A notification may be transmitted to a user device. The notification may include details of the optimal mobility service strategy.

Abstract: Methods and apparatus, including computer program products, are provided for a distributed database application system. In some implementations, there may be provided a method which may include receiving, by a transaction controller defining a data access layer of a database and via an application server associated with a client interface, a request to modify data stored in the database, the transaction controller comprising an application programming interface (API); establishing, by the API, a virtual connection between the transaction controller and the application server, and a physical connection between the transaction controller and the database; providing, by the API to the application sever via the virtual connection in response to the request, a representation of the data; and executing, by the application server, the request, the executing comprising modifying, via the virtual connection, the representation of the data without modifying the data stored in the database.

Abstract: A predictive cache system learns data access patterns to build a graph of related data items. A main cache hosted by a cache server is accessed by a cache client having a local cache. A request to the cache server for one of the related data items generates a response including some or all of the related data items, which are stored in the local cache and can be served locally for subsequent requests. Predictive cache behavior coexists with legacy non-predictive cache operation. Load on the cache server and aggregate latency are considerably reduced. Graphs can be specific to a particular context. Locally cached content can be distributed and reused by other cache clients. The predictive cache system is suitable for large-scale web applications. Variations are described.

Abstract: An optical fingerprint sensing apparatus is provided. A control circuit controls a first selection circuit to output at least one of fingerprint sensing signals on sensing signal lines, and controls a second selection circuit to output at least one of background noise signals on dummy sensing signal lines, so that the first selection circuit and the second selection circuit simultaneously output the fingerprint sensing signal and the background noise signal, respectively. The signal processing circuit cancels background noise of the fingerprint sensing signals according to the background noise signal.

Abstract: A rotor mechanism includes a plurality of rotor bars and a rotor core. The rotor bars are disposed along the edge of the rotor core. The rotor core has a plurality of magnetic flux-barrier units and at least one flux channel. Each magnetic flux-barrier unit extends from one of the rotor bars to another rotor bar. The flux channel passes through the flux-barrier units and surrounds an axis of the rotor core, wherein each magnetic flux-barrier unit is a magnetic flux barrier, and the area between the adjacent magnetic flux-barrier units and the flux channel are pathways for magnetic flux.

Abstract: Techniques are described for graph based code performance analysis of software, such as software that is being developed and tested in a development environment. Implementations provide a technique for instrumenting code by adding various annotations into the code. Each annotation may be a function call that executes with the annotated code, but does not alter the behavior and/or functionality of the annotated code apart from outputting call tracking information during execution. The call tracking information generated by annotations can be analyzed to generate a call graph that depicts calling relationships between functions in the code. The call graph can be presented within a user interface and/or automatically analyzed to develop recommendations regarding code coverage for testing, impact information describing how changes to one function impact another function, code optimization recommendations, and so forth.

Abstract: Methods for treating subterranean formations are provided. In one embodiment, the methods comprise providing a treatment fluid comprising an aqueous base fluid and a surfactant comprising an ethoxylated amine or derivative thereof; introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation; and producing fluids from the wellbore during or subsequent to introducing the treatment fluid into the wellbore.

Abstract: Described herein includes a permission management system that optimizes determination of whether a user has permission to perform an operation using an attribute table. The system may include a permission processor for: determining whether the requesting user has permission to perform the operation, the determining including: generating an attribute table comprising the one or more target users and one or more user attributes, the one or more user attributes comprising metadata associated with the one or more target users; storing the attribute table on the database; generating a reduced attribute table, the generating comprising removing one or more target users from the attribute table; and applying the one or more permission rules to each of the target users remaining in the reduced attribute table.

Abstract: Techniques are described for graph based code performance analysis of software, such as software that is being developed and tested in a development environment. Implementations provide a technique for instrumenting code by adding various annotations into the code. Each annotation may be a function call that executes with the annotated code, but does not alter the behavior and/or functionality of the annotated code apart from outputting call tracking information during execution. The call tracking information generated by annotations can be analyzed to generate a call graph that depicts calling relationships between functions in the code. The call graph can be presented within a user interface and/or automatically analyzed to develop recommendations regarding code coverage for testing, impact information describing how changes to one function impact another function, code optimization recommendations, and so forth.

Abstract: Methods and apparatus, including computer program products, are provided for a distributed database application system. In some implementations, there may be provided a method which may include receiving, by a transaction controller defining a data access layer of a database and via an application server associated with a client interface, a request to modify data stored in the database, the transaction controller comprising an application programming interface (API); establishing, by the API, a virtual connection between the transaction controller and the application server, and a physical connection between the transaction controller and the database; providing, by the API to the application sever via the virtual connection in response to the request, a representation of the data; and executing, by the application server, the request, the executing comprising modifying, via the virtual connection, the representation of the data without modifying the data stored in the database.

Abstract: Methods and compositions for treating subterranean formations with treatment fluids comprising alkyl polyglycoside surfactants are provided. In one embodiment, the methods comprise providing a treatment fluid comprising an aqueous base fluid; and a surfactant comprising an alkyl polyglycoside or derivative thereof; introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation; and producing fluids from the wellbore during or subsequent to introducing the treatment fluid into the wellbore.

Abstract: The present disclosure relates to compositions, systems and methods for removing iron sulfide scale from a solid object, such as an oilfield component. The compositions include a carbon-carbon (C—C) double bond with an electron withdrawing group bonded to at least one of the double-bonded carbons.