Abstract: A data processing method applied to a database system is disclosed. The method includes: obtaining a model training request, where the model training request includes a plurality of training samples and a model training policy, and the plurality of training samples is grouped into N training sample groups; generating an execution plan of the model training policy and an estimated execution cost of the execution plan executed by the database system; obtaining, based on the estimated execution cost, M training sample groups in the N training sample groups; training a to-be-trained model in parallel by using the M training sample groups, to obtain M pieces of parameter update data; and updating the to-be-trained model based on the M pieces of parameter update data, to obtain a trained model. This method reduces time overheads of the model training.

Abstract: Disclosed is a method for estimating database management system performance, in which a performance change ratio of a DBMS can be determined once a first knob group, a second knob group, and a data volume of active data in data managed by the DBMS are obtained, without actually configuring the second knob group in the DBMS, executing a job by the DBMS, and then observing the execution. In other words, the performance change ratio of the DBMS can be estimated without interacting with the DBMS. DBMS security can be ensured, performance measurement approaches are provided for self-tuning and self-management of the DBMS, and reliable and stable running of the DBMS is ensured.

Abstract: Techniques for calculating a per-tenant cost in a multi-tenant data storage system. In one example, a method comprises the following steps. One or more cost contribution factors associated with a storage provider entity operating a data storage system for a plurality of tenants of the data storage system are identified. One or more cost items chargeable to each of the plurality of tenants are identified, the one or more cost items being associated with usage of the data storage system by each of the plurality of tenants. The one or more cost contribution factors associated with the storage provider entity are correlated with the one and more chargeable cost items for each of the plurality of tenants. A respective cost value payable by each tenant is determined based on the correlation step. In one further example, the methodology calculates a fixed energy cost associated with storing tenant data and a dynamic energy cost associated with the tenant accessing the stored data.

Abstract: Disclosed is a method for estimating database management system performance, in which a performance change ratio of a DBMS can be determined once a first knob group, a second knob group, and a data volume of active data in data managed by the DBMS are obtained, without actually configuring the second knob group in the DBMS, executing a job by the DBMS, and then observing the execution. In other words, the performance change ratio of the DBMS can be estimated without interacting with the DBMS. DBMS security can be ensured, performance measurement approaches are provided for self-tuning and self-management of the DBMS, and reliable and stable running of the DBMS is ensured.

Abstract: Embodiments of the present disclosure relate to an apparatus and method for facilitating access to data in a distributed storage system by using a processing unit configured to collect information related to running status of the distributed storage system; obtain metadata related to data stored in the distributed storage system; in response to a request from a client, provide to the client the information related to running status and metadata related to data to be accessed; and extend storage nodes in the distributed storage system so that the client can directly access the storage nodes by using the information related to running status and the metadata related to data to be accessed. Other embodiments are also disclosed.

Abstract: The present disclosure provides a power management apparatus, method and system. The apparatus comprises: a client management module for configuring power management client module(s) on one or more clients, the power management client module being for power management of the client; a data collector module for collecting, via the power management client module(s), data related to the power management of one or more user accounts on one or more clients; and a repository module for storing the collected data.

Abstract: Embodiments of the present invention relate to a computer program product, an apparatus and a method for monitoring a target object by multiple cameras by building a surveillance network based on attributes of the multiple cameras, the surveillance network describing reachability between locations of the multiple cameras; and in response to determining that the target object is detected at a first camera among the multiple cameras, monitoring the target object based on the reachability between locations of the multiple cameras.

Abstract: Example embodiments of the present invention relate to a method and a system for datacenter management. The method includes retrieving logical relationship information regarding a datacenter and generating a layered information model of the logical relationship information regarding the datacenter. The datacenter then may be managed according to commands received from a datacenter management device configured to navigate the layered information model.

Abstract: Disclosed is a least square-based mechanical arm control method for robot experimental teaching, which includes: acquiring an image of a target object, and calculating position coordinates of the target object by using the image of the target object; setting a pickup distance, selecting a plurality of first sample points and second sample points according to a position target, and controlling, by using a swing steering engine, a claw to sequentially move along a first trajectory and a second trajectory; reading a duty ratio S of PWM signals in the swing steering engine, and calculating a value of Di=S/P; fitting xi based on a least square method to obtain a fitted equation; adjusting the pickup distance, and correspondingly setting the duty ratio of PWM signals in the swing steering engine according to the fitted data and controlling the claw to sequentially move along the first trajectory and the second trajectory.

Abstract: Embodiments of the present invention provide a method and apparatus for performing cross-layer orchestration of resources in a data center having a multi-layer architecture. The method comprises: performing unified control of all resources in all layers of the data center; performing unified storage of all topologies and machine-generated data of all layers of the data center; and orchestrating the resources of the data center based on the unified control and the unified storage. Embodiments of the present invention provide a higher level orchestration than methods in the prior art, and employ some functions provided by methods in the prior art to provide a unified manner when the demand changes for orchestrating a layered cloud data center, in order to immediately provide a suitable capability.

Abstract: Embodiments of the present invention relate to method and apparatus for system problem diagnosis and recovery. According to embodiments of the present invention, problem symptom information in a system can be automatically monitored and collected BY a monitoring apparatus (or referred as to “agent”) deployed at the system side. Upon after receiving such information, the diagnosis apparatus, for example, may automatically determine a root cause of the problem by querying a backend knowledge repository, and possibly generate an executable software package for recovering the problem. If the diagnosis apparatus determines that the currently available information is insufficient to determine a creditable enough root cause and/or is insufficient to generate the software package for recovering the problem, the diagnosis apparatus may interactively control the monitoring apparatus to collect desired additional information. In this way, the efficiency and accuracy of problem diagnosis and recovery may be improved.

Abstract: Embodiments of the present invention relate to a computer program product, an apparatus and a method for monitoring a target object by multiple cameras by building a surveillance network based on attributes of the multiple cameras, the surveillance network describing reachability between locations of the multiple cameras; and in response to determining that the target object is detected at a first camera among the multiple cameras, monitoring the target object based on the reachability between locations of the multiple cameras.

Abstract: The present disclosure provides a power management apparatus, method and system. The apparatus comprises: a client management module for configuring power management client module(s) on one or more clients, the power management client module being for power management of the client; a data collector module for collecting, via the power management client module(s), data related to the power management of one or more user accounts on one or more clients; and a repository module for storing the collected data.

Abstract: Embodiments of the present invention relate to a computer program product, an apparatus and a method for monitoring a target object by multiple cameras by building a surveillance network based on attributes of the multiple cameras, the surveillance network describing reachability between locations of the multiple cameras; and in response to determining that the target object is detected at a first camera among the multiple cameras, monitoring the target object based on the reachability between locations of the multiple cameras.

Abstract: The present disclosure provides a power management apparatus, method and system. The apparatus comprises: a client management module for configuring power management client module(s) on one or more clients, the power management client module being for power management of the client; a data collector module for collecting, via the power management client module(s), data related to the power management of one or more user accounts on one or more clients; and a repository module for storing the collected data.

Abstract: Techniques for calculating a per-tenant cost in a multi-tenant data storage system. In one example, a method comprises the following steps. One or more cost contribution factors associated with a storage provider entity operating a data storage system for a plurality of tenants of the data storage system are identified. One or more cost items chargeable to each of the plurality of tenants are identified, the one or more cost items being associated with usage of the data storage system by each of the plurality of tenants. The one or more cost contribution factors associated with the storage provider entity are correlated with the one and more chargeable cost items for each of the plurality of tenants. A respective cost value payable by each tenant is determined based on the correlation step. In one further example, the methodology calculates a fixed energy cost associated with storing tenant data and a dynamic energy cost associated with the tenant accessing the stored data.

Abstract: Embodiments of the present disclosure provide a method, system and computer program product for providing a secure access to data in mobile devices by acquiring the data from one of a plurality of remote storage devices in response to receiving an access request for the data from one or more applications; storing the data in a secure memory space in the mobile device; providing the one or more applications with an access to the data in the secure memory space when a predetermined condition is satisfied, wherein the predetermined condition at least comprises the one or more applications having an access permission to the secure memory space.

Abstract: Example embodiments of the present invention relate to a method and a system for datacenter management. The method includes retrieving logical relationship information regarding a datacenter and generating a layered information model of the logical relationship information regarding the datacenter. The datacenter then may be managed according to commands received from a datacenter management device configured to navigate the layered information model.

Abstract: Example embodiments of the present invention provide a method, apparatus and computer program product for determining a share of power consumption by an application executing on a server. The method includes obtaining metrics relating to operation of the server and obtaining metrics relating to server resource utilization attributable to the application. A transformation is then performed using the metrics relating to operation of the server and server resource utilization attributable to the application to determine the respective share of power consumption by the application executing on the server. Additionally, greenhouse-gases attributable to the application also may be calculated.

Abstract: Example embodiments of the present invention relate to a method and a system for datacenter management. The method includes retrieving logical relationship information regarding a datacenter and generating a layered information model of the logical relationship information regarding the datacenter. The datacenter then may be managed according to commands received from a datacenter management device configured to navigate the layered information model.