Abstract: Embodiments are disclosed for a method for dynamic access paths. The method includes generating real-time statistics (RTS) estimates based on a log of a database. Further, the method includes generating access paths based on a structured query language command and the RTS estimates. The method also includes training a machine learning model to map the RTS estimates to the access paths.

Abstract: Provided are a vesicular adaptor and a single-chain cyclic library constructed by using the adaptor. The library can be used for RNA sequencing and other sequencing platforms dependent on a single-stranded cyclic library, and has the advantage of high throughput sequencing, high accuracy and simple operations.

Abstract: The present invention relates to a method for enhanced path mapping based on safety consideration. To provide a method to determine a superior path from at least two alternative paths, it is proposed that the navigation system adds one or more new safety parameters based on safety consideration in path mapping process and calculate a path safety index for the alternative paths. The safety parameters may include a biometric index of at least one of drivers of vehicles on the alternative paths, a physical status of the vehicles or environment, a driving habits index of at least one of drivers of the vehicles and/or an autonomous vehicle safety index of at least one of the vehicles.

Abstract: An equilibrium-conductance-compensated eccentric method for obtaining power transfer coefficients of a direct current (DC) power network, including: establishing an equilibrium-conductance-compensated globally-linear function that relates all bus translation voltages to a bus injection power according to given bus load parameters and given bus source parameters of the DC power network; establishing an equilibrium-conductance-compensated globally-linear eccentric matrix-equation model for steady state of the DC power network; establishing an equilibrium-conductance-compensated globally-linear eccentric matrix relation between non-reference bus injection powers and non-reference bus translation voltages by using ordinary inversion of matrices; establishing an equilibrium-conductance-compensated globally-linear eccentric expression of a branch-transferred power in terms of the non-reference bus injection powers; and obtaining power transfer coefficients of the DC power network according to the equilibrium-conduc

Abstract: A database is selected from a plurality of databases included in the distributed database cluster. A shard map of the database is acquired, wherein the shard map includes a distribution of a plurality of shards on the plurality of nodes, and one or more nodes of the plurality of nodes each includes at least one shard of an old version of the database to be upgraded to a new version. A sustainable serviceability of the database corresponding to each of the one or more nodes is predicted according to the shard map based on the assumption that the at least one shard of each of the one or more nodes has been upgraded from the old version to the new version.

Abstract: In an approach, a processor detects at least one training message delivered by a user on a social media application, the training message being accessible by an operator. A processor records training feedback performed by the operator on the social media application regarding to the at least one training message. A processor trains an analysis engine module using (i) the at least one training message as input and (ii) the training feedback as output. A processor generates a predicted feedback for a subsequent message based on the trained analysis engine module.

Abstract: Provided are an adaptor element in a bubble shape, a method of constructing a sequencing library with such an adapter element. The adaptor element is a hybrid formed with a long-chain nucleic acid A and a short-chain nucleic acid B. The hybrid is in the bubble shape with paired regions at two terminals and a non-paired region in the middle.

Abstract: Embodiments of the present disclosure relate to methods, systems, and computer program products for managing a distributed system. In one embodiment, a computer-implemented method is disclosed. In the method, packets that are to be transmitted among a group of nodes in a distributed system may be collected into a queue of packets, here a packet in the queue is associated with a source node and a destination node in the group of nodes. A snapshot in the group of snapshots may be obtained from a node in the group of nodes, therefore a group of snapshots may be obtained from the group of nodes. A snapshot of the distributed system may be generated based on the queue of packets and the group of snapshots. In other embodiments, a computer-implemented system and a computer program product for managing a distributed system are disclosed.

Abstract: Provided are techniques for supporting a join operation against multiple NoSQL databases. A search request with a field and a value for the field is received, wherein the search request is to be issued against a plurality of database divisions formed from NoSQL databases. A simple database search is performed against a structured index to generate a first result set. An extended database search is performed against a linear database division index to generate a second result set by: identifying a relationship for the field that identifies related fields and identifying documents for the field and the related fields using a linear database division index. The first result set and the second result set are merged to form a merged result set of documents. The documents from the merged result set are displayed in response to the search request.

Abstract: A mobile computing system includes a case and a frame installed into the case. The components of the mobile computing system are affixed to the frame. The frame includes a first section and a second section. The first section is flexibly coupled to the second section by at least one first flexible joint and is not otherwise rigidly coupled to the second section. The frame is fabricated as a single molded piece.

Abstract: Embodiments of the invention provide methods, systems, computer program products for managing a call waiting in a queue during a request for staff services provided by a call center. According to the method, a first voice segment received in a call made by a device is recorded first. Next, whether a part of the first voice segment is related to a first predefined voice segment is determined. The volume of device is adjusted in response to the part of the first voice segment being related to the first predefined voice segment. A user of the device is alerted in response to the part of the first voice segment being not related to the first predefined voice segment.

Abstract: A file is transmitted to a plurality of hosts. The hosts are divided into host groups. A host in each host group is selected as a master host. A data block is received by a master host in a host group. The master host sends the data block to both a master host in a next host group and a next host in the host group in order that the next host in the host group sends the data block to a next host of the next host in the host group, and the master host in the next host group sends the data block to both a master host in a next host group of the next host group and a next host of the next host in the next host group.

Abstract: Embodiments of the present disclosure relate to a method for building an application. According to the method, a request is received from a building environment to acquire at least one component for executing at least one function of at least one feature of the application. The at least one feature is to be deployed to at least one target node in a distributed service platform comprising a plurality of nodes. The at least one target node and the at least one component are determined based on the request. The at least one component is acquired from the at least one target node. The at least one component is sent to the building environment for building the at least one feature.

Abstract: Provided are techniques for supporting a join operation against multiple NoSQL databases. A search request with a field and a value for the field is received, wherein the search request is to be issued against a plurality of database divisions formed from NoSQL databases. A simple database search is performed against a structured index to generate a first result set. An extended database search is performed against a linear database division index to generate a second result set by: identifying a relationship for the field that identifies related fields and identifying documents for the field and the related fields using a linear database division index. The first result set and the second result set are merged to form a merged result set of documents. The documents from the merged result set are displayed in response to the search request.

Abstract: In one embodiment, in response to a route from a source location to a target location, the route is analyzed to identify a list of one or more driving scenarios along the route that match one or more predetermined driving scenarios. The route is segmented into a list of route segments based on the driving scenarios. At least one of the route segments corresponds to one of the identified driving scenarios. A path is generated based on the route segments for driving an autonomous driving vehicle from the source location to the target location. The path includes a number of path segments corresponding to the route segments. At least one of the path segments of the path is determined based on a preconfigured path segment of a predetermined driving scenario associated with the path segment, without having to calculating the same at real time.

Abstract: A computer-implemented method for propagating changes to a live website includes logically moving a second immutable delta partition located in a staging database of a staging environment to a production environment. The second immutable delta partition is a replica of a first immutable delta partition located in the staging database of the staging environment. The computer-implemented method further includes logically moving a second delta index located in the staging database to the production environment based on altering the second delta index for the staging database to reference: (i) unique network addresses corresponding to data partitions located in a production database of the production environment and (ii) a unique network address of the second immutable delta partition located in the staging database.

Abstract: A file is transmitted to a plurality of hosts. The hosts are divided into host groups. A host in each host group is selected as a master host. A data block is received by a master host in a host group. The master host sends the data block to both a master host in a next host group and a next host in the host group in order that the next host in the host group sends the data block to a next host of the next host in the host group, and the master host in the next host group sends the data block to both a master host in a next host group of the next host group and a next host of the next host in the next host group.

Abstract: An emotional state of a user and one or more images of one or more respective objects observed by the user in an environment using an augmented reality device are received. It is determined whether the one or more objects include at least one negative impact object having a source color that can be changed to improve the emotional state of the user. In response to a determination that the one or more objects include at least one negative impact object having a source color that can be changed to improve the emotional state of the user, the augmented reality device is caused to render the at least one negative impact object with a target color assigned to improve the emotional state of the user.

Abstract: This application provides an additional object display method, an additional object display apparatus, and a computer device, and relates to the field of computer application technologies. The method includes: displaying a trigger control in a video playback interface; pausing playback of a video in response to an activation operation on the trigger control, and displaying a reference picture frame; obtaining a target object in the reference picture frame in response to a drag operation on the trigger control; and displaying, corresponding to the target object, an additional object corresponding to the trigger control in a picture frame of the video during playback of the video, so that an additional object matches a video playback picture during playback of the video.

Abstract: An example operation may include one or more of connecting, by a virtual blockchain manager node, to a blockchain configured to store a plurality of user transactions committed by a user node, identifying, by the virtual blockchain manager node, a user request transaction from the plurality of the user transactions for a creation of a virtual blockchain for the user, wherein the user request transaction contains a rule, creating, by the virtual blockchain manager node, the virtual blockchain based on the user request transaction, populating, by the virtual blockchain manager node, the virtual blockchain with the user transactions from the plurality of the user transactions from the blockchain based on the rule, and executing, by the virtual blockchain manager node, a smart contract to record the rule and a hash of all blocks from the virtual blockchain onto the blockchain.