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698 results about "Data correlation" patented technology

In statistics and probability theory, correlation means how closely related two sets of data are. Correlation does not always mean that one causes the other. It is very possible that there is a third factor involved.

Network security situation awareness system and method based on information correlation

The invention relates to a network security situation awareness system and method based on information correlation. The system comprises a data acquisition module, a network security situation evaluation module, a network security situation prediction module and a network situation visualization module, wherein the data acquisition module is used for acquiring network essential information; the network security situation evaluation module is used for quantitatively analyzing threat, frangibility and stability of the network by utilizing the network essential information, thereby analyzing the current network security situation; the network security situation prediction module is used for predicting the network security situation according to historical information and current state of the network security situation; and the network situation visualization module is used for visually displaying network security indexes according to the analysis and prediction result of the network security situation. The invention solves the problem that the existing network situation awareness system lacks data validity verification, data correlation and quantitative analysis, so that the network security situation awareness is more accurate.
Owner:INST OF COMPUTING TECH CHINESE ACAD OF SCI

Data correlation query method and data correlation query device

The invention provides a data correlation query device and a data correlation query method. The data correlation query device comprises a data acquisition unit, an SQL (structured query language) execution unit, a cache number-picking formula construction unit and a cache execution unit. The data acquisition unit is used for obtaining a fundamental field of a fact table and selecting a field of a dimension table based on the fundamental field to be used as an correlation field for correlation of the fact table and the dimension table; and the SQL execution unit is used for implementing query operations through SQL statements based on the fundamental field and a datasheet with the fundamental field, and obtaining a result set; the cache number-picking formula construction unit is used for obtaining a main key value corresponding to the correlation field from the result set, and constructing a cache number-picking formula in combination with a data path with the correlation field; and the cache execution unit is used for obtaining the value of the correlation field according to the cache number-picking formula and combining the value of the correlation field and the result set to obtain final query results. The fact table and the dimension table can be associated efficiently, results can be implemented efficiently, the fatal pressure on the system caused by correlation query of the fact table and the dimension table with a large number of data can be avoided, and the efficiency can be improved.
Owner:YONYOU NETWORK TECH

Device and method for instruction scheduling

The invention provides a device and a method for dynamically scheduling instructions transmitted from an operation queue to a reservation station in a microprocessor. The method comprises the following: a step of writing instructions, which is to set and then write the operand states of the decoded instructions on the basis of data correlation between the decoded instructions to be written into the operation queue and effective instructions in the operation queue, as well as instruction execution results which have been written back and are being written; a step of updating the operand states, which is to update the operand state of each instruction not transmitted on the basis of the data correlation between each instruction not transmitted and the instructions being written back of instruction execution results; a step of judging to-be-transmitted instructions, which is to judge whether the to-be-transmitted instructions with all operands ready exist on the basis of the operand state of each instruction not transmitted; and a step of transmitting instructions, which is to transmit the judged to-be-transmitted instructions to the reservation station when the reservation station has vacancies. Pipeline efficiency can be effectively improved by transmitting the instructions with the operands ready to the reservation station on the basis of the data correlation between the instructions.
Owner:LOONGSON TECH CORP

Ship intelligent energy efficiency management system

ActiveCN107563576AScientific and effective energy efficiency managementReduce energy consumptionForecastingTechnology managementEconomic benefitsEngineering
A ship intelligent energy efficiency management system includes a basic function module and an advanced function module. The basic function module is used for monitoring and evaluation on energy consumption and energy efficiency; through automatic collection and online monitoring of ship navigational status and energy consumption condition data, by applying data correlation analysis and a data model algorithm, analysis, evaluation and predication are performed on ship energy consumption, energy efficiency and discharge, so that data evaluation and analysis results and assisting decision suggestions are provided for ship operation managers and intelligent energy efficiency management basic functions of ship energy efficiency real time monitoring, intelligent evaluation and optimization andcomprehensive report generation are implemented. The advanced function module is used for navigational speed optimization and establishing of a ship energy efficiency analysis model and a navigationalspeed optimization analysis model, so that the navigational speed optimization function based on voyage number plan and economic benefit is implemented. Real time evaluation is performed based on data collected in real time. Ship operation condition is regulated based on energy efficiency improvement on the basis of actual data, so that ship energy efficiency management becomes more scientific and effective.
Owner:中船重工信息科技有限公司

Positioning method and positioning system of location fingerprints

The invention discloses a positioning method and a positioning system of location fingerprints. The positioning method of location fingerprints comprises the following steps of: (1) dividing a first region, in which a positioned point is located, into a plurality of second regions, and selecting a plurality of sampling points in each second region; (2) collecting information about access point signal receiving strength of each sampling point, recording coordinate information and region attribute information of the sampling points, and inputting the collected information to a database; (3) creating a corresponding table of lists about region attributes and access point medium access control addresses; (4) extracting the access point medium access control addresses of the first m sampling points with the highest access point signal receiving strength, performing retrieval in the corresponding table, and matching n regions having the highest coincidence degree of the access point medium access control addresses with the m sampling points; and (5) extracting location fingerprint points in the n regions from the database, performing data correlation method operation with the sampling information of the positioned points, and acquiring location coordinate information of the positioned points.
Owner:SHANGHAI DINGZHU COMM TECH
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