Abstract: This application provides a communication method, a gateway, and a management method and apparatus. A first data center is configured to provide non-public cloud services, and a second data center is configured to provide public cloud services. A gateway configured in the second data center is connected to a first subnet of the first data center, and is connected to a second subnet of the second data center. The first subnet and the second subnet have a same private network segment. The method includes: a layer 2 gateway receives a first address resolution protocol (ARP) request packet, which is used to request a MAC address of a second device in the second subnet, sent by a first device in the first subnet, and the gateway sends the first ARP reply packet, which carries a first MAC address of the gateway, to the first device.

Abstract: A positioning method includes obtaining an estimated extrinsic parameter of a camera and an intrinsic parameter of the camera, where the estimated extrinsic parameter of the camera is obtained based on world coordinates of a plurality of estimation points in a shooting region of the camera, image coordinates of the plurality of estimation points, and the intrinsic parameter of the camera; obtaining image coordinates of a target in an image shot by the camera; and obtaining world coordinates of the target based on the estimated extrinsic parameter of the camera, the intrinsic parameter of the camera, and the image coordinates of the target.

Abstract: This application relates to the artificial intelligence field, and provides an image processing method, an apparatus, and a system. The image processing method includes: obtaining a plurality of image blocks by segmenting a to-be-analyzed pathological image; inputting the plurality of image blocks to a first analysis model to obtain a first analysis result, where the first analysis model classifies each of the plurality of image blocks based on a quantity or an area of suspicious lesion components; inputting at least one second-type image block in the first analysis result to a second analysis model to obtain a second analysis result, where the second analysis model analyzes a location of a suspicious lesion component of each input second-type image block; and obtaining a final analysis result of the pathological image based on the first analysis result and the second analysis result.

Abstract: In a code analysis method, a code analysis system obtains information about a service scenario that represents an objective of code analysis. The code analysis system generates a code analysis algorithm for the service scenario based on the information about the service scenario. When code analysis needs to be performed, the code analysis system obtains information about source code and object code that are specified by a user, and analyzes similarity between the source code and the object code according to the code analysis algorithm to obtain an analysis result. The similarity between the source code and the object code is analyzed according to the code analysis algorithm generated based on the information about the service scenario, to obtain the analysis result that meets a requirement of the service scenario.

Abstract: In a shard adjustment method for a time series database, feature information of an access request of at least one user for a data table of a time series database is obtained. The data table is divided into a plurality of shard groups according to a predetermined rule, and each shard group can be further divided into a plurality of shards. Each shard group is set in a different time period, and each shard is set in a different node. Then, the predetermined rule is adjusted based on the feature information, and a new shard group and/or a new shard that match/matches the access habit are/is generated according to an adjusted rule.

Abstract: A microservice call method is provided. The method includes: a network interface card receives service call requests separately generated by a plurality of first services deployed on a first device, where each of the plurality of first services is corresponding to one second service, and the second service is used to process first data of a service call request generated by the first service corresponding to the second service; and the network interface card sends the service call request to the second service based on service governance logic related to the first data. In this way, a problem that contention of a plurality of proxies for a system resource causes process context switching and further causes a sharp increase in a service delay is resolved, and application performance is improved.

Abstract: An architecture analysis apparatus (106) receives an architecture model input by a user, and analyzes a plurality of modules included in the architecture model to obtain a call relationship between the modules. Then, the plurality of modules are allocated to different layers based on an architecture setting entered by the user, whether a call relationship between the plurality of modules complies with a call rule is detected, and a detection result is displayed to the user by using an interface.

Abstract: A method and computing system for rendering subsurface scattering are provided. An optical property and a thickness are received for each of a plurality of material layers. A latent space is trained for each of the plurality of material layers. A global transfer matrix is generated for at least one multi-layer material, each of the at least one multi-layer material including an ordered set of material layers selected from the plurality of material layers, by determining a transfer matrix for each adjacent pair of material layers in the ordered set of material layers using the latent space for each material layer in the adjacent pair of material layers, the transfer matrix describing angular and azimuthal reflectance and angular and azimuthal transmittance, and determining the global transfer matrix as a product of the transfer matrices of each adjacent pair of material layers.

Abstract: This application discloses a method. A database access scheduling module (331 to 333) establishes a communication connection to a database access service engine (121 to 123) using an identifier of the database access service engine (121 to 123). The database access scheduling module (331 to 333) receives an access request sent by the database access service engine (121 to 123), where the access request carries an identifier of a database instance (371 to 375). The database access scheduling module (331 to 333) sends the access request to the database instance (371 to 375). In this way, the database access service engine (121 to 123) may send the access request to the database instance through the database access scheduling module (331 to 333) based on the communication connection actively established by the database access scheduling module (331 to 333) to the database access service engine (121 to 123).

Abstract: A model training system includes a cloud data storage platform and a cloud model training platform. The cloud data storage platform is configured to: store training data; and receive a training data calling request, and export training data corresponding to a data calling instruction to the cloud model training platform based on the training data calling request. The cloud model training platform is configured to: receive a model training creation instruction to obtain a to-be-trained model; generate the training data calling request, and send the training data calling request to the cloud data storage platform; and train the to-be-trained model by using the training data exported from the cloud data storage platform, to obtain a training result model. In the technical solutions of the present invention, a risk of leaking training data can be reduced.

Abstract: A node switchover method is provided, including: A source database nod executes a first query command. Then, the source database node sends target data to a destination database node, where the target data is data for executing a second query command in an execution result of the first query command. Next, the destination database node executes the second query command by using the target data. In the method, some complex operations implemented for node switchover sink to a database node, so that a routing node at which middleware is located does not need to identify a query statement, record a transaction state in real time, or cache a large quantity of query commands that change operation context. This avoids consuming more processor and memory resources of the routing node, reduces costs and overheads of the routing node, and ensures service performance.

Abstract: A live streaming method includes that a live streaming platform plays a live video generated by a first cloud phone under control of a first client, where the first cloud phone and the first client are located in a first region. The live streaming platform switches control permission for the first cloud phone from the first client to a second client. The live streaming platform migrates a running environment of the first cloud phone to a second cloud phone online, where the second cloud phone and the second client are located in a second region. The live streaming platform plays a live video generated by the second cloud phone under control of the second client.

Abstract: A bare-metal connection storage method includes establishing a storage network, where the storage network includes a plurality of bare-metals, an access switch, a core switch, and a storage device. The plurality of bare-metals are coupled to the access switch, the access switch is coupled to the core switch, and the core switch is coupled to the storage device. The method configures the storage network, so that each of the plurality of bare-metals is coupled to the storage device.

Abstract: A device detects anomalies on an input stream of events. Each event includes a value. The device has: a modeling unit configured to represent each event into at least one histogram over a predefined tree data structure to obtain a model of the input stream; a change detection and adaptation module configured to detect a long term change of the distribution of the events in the input stream based on the model of the input stream; and a scoring unit configured to calculate an anomaly score representing the probability of an anomaly in the input stream of events based on the model of the input stream and the detected long term change.

Abstract: A cross-network wake-up method and a related device are disclosed. In the method, an Internet of things (IoT) platform sends a wake-up instruction to an agent device that maintains a heartbeat connection to the IoT platform, and then sends, through the agent device, a wake-up message to a to-be-woken-up IoT device deployed on a same private network as the agent device. This resolves a technical problem that after a public-private network address mapping becomes invalid, a message from the IoT platform cannot reach a IoT device through a network address translation (NAT) device, and the IoT device cannot receive messages from the IoT platform.

Abstract: In a method, an instance management node receives a request for creating a service instance; the instance management node obtains a cache configuration corresponding to the service instance; and the instance management node creates the service instance on a computing node, and creates a cache instance on the computing node based on the cache configuration. In this way, the service instance may provide a service by using the matched cache instance.

Abstract: A security management arrangement for monitoring to detect a targeted attack on an application. Operation of the arrangement includes receiving a suspected attack alarm issued by a centralized security monitoring apparatus. The arrangement determines an application associated with the suspected attack alarm. The arrangement further operates to obtain monitoring information obtained through monitoring of the application. The arrangement further determines, based on the monitoring information, the application has been attacked.

Abstract: In one example method, a second memory stores data in a database, and the second memory is a memory independent of a first device and a second device. When determining that a database service needs to be switched, the first device may migrate a redo log of the database from a first memory of the first device to the second memory. The second device migrates the redo log from the second memory to a third memory of the second device, and the first device and the second device perform operating system status migration online.

Abstract: A method for presenting an associated conflict block comprises obtaining a first conflict file comprising a plurality of first code blocks, wherein a second code block of the first code blocks comprises a first code snippet of a current version of the second code block, a second code snippet of a basic version of the second code block, and a third code snippet of a to-be-merged version of the second code block. A first instruction triggered on a user interface for activating a to-be-processed code block is received, wherein a first type of the to-be-processed code block is of an unresolved conflict block or a single-side change block. A fourth code snippet comprised in the to-be-processed code block and indexes of N associated code blocks of the to-be-processed code block is presented on the user interface.

Abstract: An image analysis method, including: obtaining influencing factors of t frames of images, where the influencing factors include self-owned features of h target subjects in each of the t frames of images and relational vector features between the h target subjects in each of the t frames of images, self-owned features of each target subject include a location feature, an attribute feature, and a posture feature, and t and h are natural numbers greater than 1; and obtaining a panoramic semantic description based on the influencing factors, where the panoramic semantic description includes a description of relationships between target subjects, relationships between actions of the target subjects and the target subjects, and relationships between the actions of the target subjects.