3 results about "Object domain" patented technology

The embodiment of the invention provides a data query method and device and a storage medium, and the method comprises the steps: building a business coordinate system according to an oil and gas business model, the business coordinate system comprises a main domain, a sub-domain and a knowledge graph, the main domain comprises an object domain and a business domain, the sub-domain comprises a working domain and a professional domain, and the knowledge graph comprises an object domain and a business domain; determining entity association of the main domain and the sub-domain by utilizing the knowledge graph; obtaining term features, sentence pattern structures and context information in a user question statement, and matching the term features, the sentence pattern structures and the context information with the service coordinate system to obtain key information of the user question statement; and identifying the key information through a query vector library to obtain a logical statement, and converting the logical statement into an executable SQL statement for data query. According to the method, the accuracy of data query is improved.

The application discloses a dynamic bit rate allocation method and system considering parallel multi-channel video encoding, comprising the following steps: distributing the obtained multi-channel parallel power monitoring video stream to the corresponding video encoding channel based on the channel mapping relationship, and performing object domain type and encoder capability identification; determining the target object domain of the video stream, and determining the semantic importance level of the target object domain; combining the semantic importance level of the target object domain, the internal encoding complexity and the area characteristics to calculate the video stream complexity score; determining the code rate allocation strategy based on the video encoding channel attribute, solving the optimal code rate allocation scheme based on the code rate allocation strategy according to the video stream complexity score to obtain the target code rate; and matching the optimal key parameters of the video encoder according to the target code rate to compress and encode the video stream. The application can effectively balance the video quality of each channel, improve the code rate resource utilization rate and the encoding efficiency, and take into account the video content value.

A computer-based method for performing K-nearest neighbor (K-NN) queries on spatial data in distributed or parallel systems. The data consists of query and object data. The query domain is pre-partitioned, with an object domain calculated for each partition based on its geometry and K candidate objects. This domain determines the relevant objects for the K-NN query. If the query dataset is also partitioned in the same way, suitable objects can be retrieved selectively. The partitions and their objects are distributed across multiple processors, significantly reducing the amount of data per processor. Only objects within the respective object domain are considered. This method enables efficient, large-scale K-NN queries with low computational and data overhead while maintaining high accuracy.