6 results about "Selection rule" patented technology

The application discloses a kind of methods, devices and equipment and storage medium for the synchronization of anti-replay counter of controller area network.The method comprises: constructing data block set based on the high part of anti-replay counter, including multiple data blocks with the same length in the data block set;Based on the CAN communication identifier of the controller area network CAN message to be sent and the low part of the anti-replay counter, use the preset data block selection rule to select one or more data blocks from the data block set as the coded data block;Encoding the coded data block to obtain the encoding fragment;The length of the encoding fragment is the same as the length of each data block;Fill the encoding fragment into the idle bit in the CAN message to be sent, and send the filled CAN message to the receiving end.The method sends data using idle bit, which can reduce bus burden and improve resource utilization.

This invention proposes a method and system for diagnosing DAS wellbore flow stability based on the square coherence coefficient distribution, belonging to the field of fluid acoustics technology. The method includes: acquiring raw time-series acoustic signals related to wellbore flow using DAS to obtain multi-channel raw time-series DAS data; preprocessing the data and segmenting it according to sliding time windows to obtain multiple time window samples; determining at least one reference channel according to a preset reference channel selection rule; calculating the square coherence coefficient between the reference channel and channels at various spatial locations within the target well section, and constructing a time-space-frequency distribution; extracting high-coherence regions and one or more stability features within the target frequency band; constructing a flow stability index based on the features and performing graded flow stability diagnosis; this invention also discloses a system and storage medium for executing the method, applicable to wellbore or pipeline flow stability diagnosis and abnormal section identification scenarios.

The present application relates to the technical field of open-pit mine blasting, in particular to a quick layout method for perforation position of open-pit mine blasting, which is characterized by the following steps: constructing a simple polygon through boundary point sequencing and legality verification for irregular boundary areas; extracting the minimum rotating outer rectangle of the blasting area based on the convex hull algorithm to adaptively determine the layout direction of the hole network; constructing the long and short axis system according to the hole spacing and row spacing within the minimum rotating outer rectangle, and generating candidate hole positions by using the staggered point selection rule based on the axis number and the point number parity; finally, screening the effective hole positions within the boundary by the ray method, and outputting the geographic coordinate results by using the coordinate projection conversion module. The present application can effectively process irregular boundaries, adaptively determine the hole network direction, improve the uniformity of hole position distribution and the calculation efficiency, and output high-precision coordinates that can be directly used for drilling navigation, thereby significantly reducing the cost of manual correction.

This invention relates to the field of medical data processing technology, and more particularly to a method and system for imputing missing data in the classification of pancreatic cystic lesions. When imputing missing data in the dataset using an improved chain equation multiple imputation method, this invention selects a suitable model from a model library containing linear models, multinomial regression models, and gradient boosting tree models according to dynamic model selection rules, based on the characteristics of the variable to be imputed. Dynamic weights are then assigned based on the model's expected contribution. Furthermore, the candidate model set is redefined and model weights are redistributed in each iteration, allowing the iteration process to gradually approach the true value of the missing value, significantly improving the statistical fidelity and distribution accuracy of the imputed value.

The application provides a multi-path parallel table lookup method and device and a storage medium, and belongs to the technical field of communication. The method comprises the following steps: pre-fetching a preset number of messages from a corresponding cache, and selecting a message to be sent according to a preset selection rule after the messages are placed in order; calculating the number of corresponding lookup tables for each message to be sent; determining an idle channel, and mapping the corresponding message to the corresponding channel according to the number of lookup tables to perform multi-path parallel table lookup. The application can flexibly allocate channel resources according to the actual number of tables to be queried by the message, avoid resource fragmentation caused by fixed channel allocation, allow multiple messages to query different table items at the same time by dynamically allocating messages to idle channels, and break the serial bottleneck of the traditional pipeline. Meanwhile, the application can realize entry order preservation, ensure that the next message is processed immediately after all table item lookups of the current message are completed, and two messages can be processed in one cycle.

An embodiment of a method for implementing by a Wireless Transmit-Receive Unit (W TRU) includes receiving, from a Primary Mobile Network (PMN) to which the WTRU is registered, information related to a Secondary Mobile Network (SMN) and including an indication of an SMN selection rule, selecting an SMN in response to a trigger and to the SMN selection rule, registering to the selected SMN, and requesting establishment of a Multi-Access Protocol Data Unit (MA-PDU) session having DualSteer functionality and with an access leg over the registered SMN and with another access leg over the registered PMN.