Abstract: An embodiment of the present invention discloses a computing resource configuration method and device for enterprise cloudification. The method comprises the following steps: obtaining parameters configured by a user through a configuration page, wherein the parameters include a proportion of a bidding instance to an on-demand instance; determining a total amount of computing resources required by a computing task after the computing task is obtained; determining the computing resources corresponding to the bidding instance and the computing resources corresponding to the on-demand instance based on existing computing resources, the total amount of the computing resources and the proportion; and applying for the computing resources from a cloud provider based on the computing resources corresponding to the bidding instance and the computing resources corresponding to the on-demand instance. Big data is computed in a bidding instance mode so that the total cost of the computing resources is greatly reduced.

Abstract: A rotating device and an electronic equipment accessory are provided. The rotating device includes a first connecting member and a second connecting member rotatable about a rotation axis relative to the first connecting member. An angle formed between the rotation axis and a length direction of the rotating device is acute such that the second connecting member can move upwards when rotating with respect to the first connecting member. Therefore, when the rotating device is applied to an electronic equipment accessory which is mounted on electronic equipment, the rotating device acting as a stand can be arranged between a magnetic charging structure of electronic equipment and a bottom edge of the electronic equipment, such that the rotating device will not shield the magnetic charging structure. The rotating device can act as a stand with a good support effect due to existing of the acute angle.

Abstract: A rotating device and an electronic equipment accessory are provided. The rotating device includes a first connecting member and a second connecting member rotatable about a rotation axis relative to the first connecting member. An angle formed between the rotation axis and a length direction of the rotating device is acute such that the second connecting member can move upwards when rotating with respect to the first connecting member. Therefore, when the rotating device is applied to an electronic equipment accessory which is mounted on electronic equipment, the rotating device acting as a stand can be arranged between a magnetic charging structure of electronic equipment and a bottom edge of the electronic equipment, such that the rotating device will not shield the magnetic charging structure. The rotating device can act as a stand with a good support effect due to existing of the acute angle.

Abstract: An electronic equipment accessory includes an accessory body and a holder assembly connected to the accessory body. The holder assembly includes a support member and a base. The base is rotatably connected to the accessory body. The support member is rotatable relative to the base between an extended position and a folded position. At the extended position, an included angle is formed between the support member and the base to thereby allow the accessory body to be supported on a support surface. The support member is rotatable relative to the base in one direction and the base is rotatable relative to the accessory body in another direction, thus the support member of the electronic equipment accessory can be adjusted with respect to the accessory body in multiple directions to thereby allow the electronic equipment accessory to support electronic equipment on a support surface at multiple different directions or tilted angles.

Abstract: An electronic equipment accessory includes an accessory body and a holder assembly connected to the accessory body. The holder assembly includes a support member and a base. The base is rotatably connected to the accessory body. The support member is rotatable relative to the base between an extended position and a folded position. At the extended position, an included angle is formed between the support member and the base to thereby allow the accessory body to be supported on a support surface. The support member is rotatable relative to the base in one direction and the base is rotatable relative to the accessory body in another direction, thus the support member of the electronic equipment accessory can be adjusted with respect to the accessory body in multiple directions to thereby allow the electronic equipment accessory to support electronic equipment on a support surface at multiple different directions or tilted angles.

Abstract: A rotating device and an electronic equipment accessory are provided. The rotating device includes a first connecting member and a second connecting member rotatable about a rotation axis relative to the first connecting member. An angle formed between the rotation axis and a length direction of the rotating device is acute such that the second connecting member can move upwards when rotating with respect to the first connecting member. Therefore, when the rotating device is applied to an electronic equipment accessory which is mounted on electronic equipment, the rotating device acting as a stand can be arranged between a magnetic charging structure of electronic equipment and a bottom edge of the electronic equipment, such that the rotating device will not shield the magnetic charging structure. The rotating device can act as a stand with a good support effect due to existing of the acute angle.

Abstract: A Certification Authority (CA) server for issuing digital certificates generates a first digital certificate associated with a first public key of the device and calculates an update factor for the first private key. Based on the first public key, the calculated update factor, and a predefined public system parameter, the CA server calculates a second public key for a determined time period for the device. The CA server generates a second digital certificate valid at the determined time period and associated with the second public key and sends the second digital certificate to the device. A device may calculate an update factor for a stored first private key, calculates a second private key based on the calculated update factor and the first private key, receives from the CA server a second digital certificate associated with a second public key, and validates the device based on the second digital certificate.

Abstract: An electronic equipment accessory includes an accessory body and a holder assembly connected to the accessory body. The holder assembly includes a support member and a base. The base is rotatably connected to the accessory body. The support member is rotatable relative to the base between an extended position and a folded position. At the extended position, an included angle is formed between the support member and the base to thereby allow the accessory body to be supported on a support surface. The support member is rotatable relative to the base in one direction and the base is rotatable relative to the accessory body in another direction, thus the support member of the electronic equipment accessory can be adjusted with respect to the accessory body in multiple directions to thereby allow the electronic equipment accessory to support electronic equipment on a support surface at multiple different directions or tilted angles.

Abstract: An embodiment of the present invention discloses an index recommendation method and apparatus based on data features. The method includes following steps: acquiring multiple dimensions from query historical data of a user, and constructing an aggregation group according to the dimensions; creating initial indexes according to the aggregation group, which are divided into multiple levels according to dimension combinations; pre-screening the initial indexes of each level based on a sampling algorithm to obtain a candidate index set; and searching an index subset with the minimum cost value from the candidate index set through a genetic algorithm or a greedy algorithm to serve as a recommended index. The present invention can significantly improve the efficiency of pre-computation and save the storage and computation cost.

Abstract: The disclosure provides a cloud computing-based adaptive storage layering system and method. The system includes a data node management module, a metadata management module, an adaptive storage layering module, and a pre-aggregated query routing module. According to predefined rules, node capacity is expanded and shrunk, collected queried hit models and scanned file paths are aggregated and sorted, and layering loading and pre-loading are performed on files. Based on the disclosure, an efficient On-Line Analytical Processing (OLAP) query execution engine may be constructed, to deal with complex OLAP queries of various reporting system. Therefore, the execution efficiency of cloud OLAP engines can be significantly enhanced.

Abstract: The present invention discloses a method and a device for processing information by batch-stream fusion, and a storage medium. The method comprises the following steps: Obtaining an index based on an input query statement; extracting a pre-computed index data segment based on the index as a query result; and extracting a re-computed index data segment to update the query result. The present invention solves the technical problem that real-time data and offline data are difficult to fuse and analyze.

Abstract: The disclosure provides a cloud computing-based adaptive storage layering system and method. The system includes a data node management module, a metadata management module, an adaptive storage layering module, and a pre-aggregated query routing module. According to predefined rules, node capacity is expanded and shrunk, collected queried hit models and scanned file paths are aggregated and sorted, and layering loading and pre-loading are performed on files. Based on the disclosure, an efficient On-Line Analytical Processing (OLAP) query execution engine may be constructed, to deal with complex OLAP queries of various reporting system. Therefore, the execution efficiency of cloud OLAP engines can be significantly enhanced.