4results about How to "Avoid deletion" patented technology

This invention relates to the field of pattern recognition technology and discloses a method and system for evaluating and correcting phase factors based on numerical weather prediction. The method includes: collecting numerical weather prediction data for a target area at the current forecast lead time, and obtaining historical initial phase forecast results and current phase data; performing phase pattern recognition processing to determine the phase transition zone based on the current initial phase forecast results and wet-bulb criticality; performing phase boundary offset comparison to obtain the phase boundary offset direction and correction buffer zone; marking freezing rain protection candidate grid points; prohibiting the deletion of freezing rain protection candidate grid points as spatially isolated anomalies when they are located within the correction buffer zone; and performing freezing rain protection correction on the freezing rain protection candidate grid points to obtain the corrected phase forecast results. This application improves the retention capacity and correction accuracy of freezing rain risk grid points within the phase transition zone, and enhances the stability of phase forecast results.

The application discloses a data sharing method, which can realize safe and reliable data sharing based on a blockchain technology. The data sharing method comprises the following steps: in the case that a first user requests to share target data, a SIM card of the first user acquires a first authentication credential from a blockchain node, the first authentication credential being generated by the blockchain node based on an authentication key and user information of a second user stored in the blockchain; the SIM card of the first user encrypts the target data based on the first authentication credential and a private key of the first user, and obtains a first ciphertext; and the SIM card of the first user sends the first ciphertext to a SIM card of the second user.

This application provides a table entry management method and apparatus, relating to the field of communication technology and applied to network devices. The method includes: setting a hardware MAC address table to prevent aging; executing a software table entry polling task to poll each storage location of the software MAC address table; the software table entry polling task performing a logical AND operation between the authentication type of the first software MAC address table entry at the polled storage location and an aging filter bitmap mask; wherein the aging filter parameter bit of the aging filter bitmap mask is set to a binary value of 1; determining that the corresponding bit of the aging filter parameter bit in the logical AND operation result has a binary value of 1, identifying that the first software MAC address table entry matches the aging filter parameter; and polling the next storage location of the software MAC address table to skip the aging deletion process of the first software MAC address table entry. This solution can solve the problem of user terminals being online, but hardware MAC address table entries being aged, thus improving the user's internet experience.

The invention provides a data management method, a server and a storage medium, and belongs to the technical field of data processing.The method comprises the steps that in response to an operation request for any target attachment, a unique identifier of the target attachment is determined; according to the unique identifier, querying attachment information corresponding to the target attachment from an attachment table; updating a reference count in the attachment information, wherein the reference count is used for representing the number of times that the target attachment is referenced by the business entity; according to the operation request, a reference relation table of the target attachment is updated, and the reference relation table is used for recording the incidence relation between the service entity and the attachment. In this way, for one attachment, the server only stores the data stream in the attachment once, redundant storage caused by repeated copying of the same attachment is avoided, the number of times that the attachment information is referenced by the service entity is recorded through the number of times of reference, so that when deletion operation is executed, the number of times of reference of the attachment is used as a reference, deletion of the currently referenced attachment is avoided, and user experience is improved. Accessories are prevented from being deleted by mistake, and a data management mode is optimized.