5results about How to "Eliminate redundant data" patented technology

The invention discloses a water quality monitoring method and device based on Internet of Things, and relates to the technical field of data analysis. Acquiring monitoring data of the target water area in a preset time period through a plurality of monitoring nodes arranged in the target water area; extracting key feature data from the monitoring data according to the key variable set corresponding to the node; the key variable set is determined by historical monitoring data; preprocessing the key feature data to obtain a standard time sequence matrix; the standard time sequence matrix comprises a plurality of parameter time sequence vectors; and taking the standard time sequence matrix as the input of the deep learning model corresponding to the target node to obtain a dissolved oxygen prediction sequence. Under different water environments, contributions of influence factors of dissolved oxygen changes are different, and characteristic parameters closest to dissolved oxygen can be found through historical monitoring data of nodes, so that redundant data are eliminated, interference of noise data is reduced, and accuracy of machine learning model prediction is improved.

The application provides a knowledge graph construction system and method based on a relational database, comprising a database connection module, a knowledge graph construction module and a graph editing and display module, based on form structure analysis, form association relationship identification and analysis and form basic item acquisition of the relational database, realizing graph construction and fusion integration of the relational database; based on graph visualization display, graph entity editing, graph entity relationship editing and graph extraction information configuration, realizing graph editing and display capability. The application supports graph construction of multiple data sources, breaks data islands, carries out multi-element combination of data, provides a combined information analysis basis for users, provides entity fusion integration capability, effectively improves graph availability and eliminates redundant data.

The invention provides a trade data management method and system based on a block chain, and relates to the technical field of trade data management. Determining data point distances among the transaction nodes through the trade data, and constructing a distance difference matrix of the trade data according to the data point distances; trade records between different transaction nodes are extracted from the trade data, correlation dependency degrees between the transaction nodes are determined through the trade records between the different transaction nodes, and a trade dependency relationship is obtained according to all the correlation dependency degrees; performing node domain decoupling on the trade data by using the spacing difference matrix and the trade dependency relationship to obtain a plurality of trade node domains, and determining an intra-domain fuzzy factor of each trade node domain; the trade records in the trade node domains are stored in a classified mode according to the corresponding intra-domain fuzzy factors, the trade records can be stored in a classified mode according to the dependency relationship between the trade nodes, and therefore the storage efficiency of a trade data management system is improved.

This invention discloses a rapid method for constructing semantic electronic maps based on geographic entities, comprising: determining the entity category of each element in the basic surveying and mapping data of the area to be constructed based on a multi-level classification framework, and lightweight compressing the basic surveying and mapping data of each element; converting the geometric surveying and mapping data and attribute information of the elements into geographic entity geometry and geographic entity attributes according to the geometric mapping and attribute mapping relationships of the elements, constructing multi-dimensional semantic relationships of entities, and obtaining two-dimensional geographic entities; selecting a three-dimensional transformation method according to the type of the two-dimensional geographic entity to convert the two-dimensional geographic entity into a three-dimensional geographic entity; performing conflict detection on the generated three-dimensional geographic entity model, and handling the conflict of elements, correcting the corresponding three-dimensional geographic entities to ensure the reliability and accuracy of the constructed three-dimensional geographic entities; and finally constructing a three-dimensional electronic map based on the three-dimensional geographic entities of all elements.

The invention discloses a test record generation method and device and electronic device.The method is applied to the financial science and technology field or other fields and comprises the steps that when a recording request of a target test case is received, target equipment is checked according to a recording starting rule, and a checking result is obtained; recording a display screen connected with the target equipment under the condition that the inspection is passed; when it is detected that the target device meets the recording ending condition, recording of the display screen is stopped, and an initial video file is obtained; identifying a video clip containing the test object in the initial video file to obtain a target video file; and generating a test record of the target test case according to the target video file. Through the application, the problem that the reason of the problem is difficult to locate according to the test record when the application has the problem due to the lack of the test record of the key step in the test process due to the personal subjective opinion of the tester when the application is tested in the related technology is solved.