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Probability based big data query method

A query method and big data technology, applied in the database field, can solve problems such as inability to meet query requirements

Active Publication Date: 2015-12-02
NORTHEASTERN UNIV
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Problems solved by technology

However, the complete query method adopted by the current database system can no longer meet this query requirement, and it is urgent to define an approximate complete query technology to make up for this gap.

Method used

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Embodiment Construction

[0079] The present invention proposes a probability-based big data query method. During the query process, the query performance is improved by specifying the query probability and the integrity of the query data is lost. It is a new type of data query technology, and has better Versatility, applicability and scalability. The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. A probability-based big data query method in this embodiment, such as figure 1 As shown, it includes: the step of dividing the data set with multiple attributes according to the data model; the step of loading the data set according to the data probability placement model; and the step of performing probability query on the data set.

[0080] The data model defines how data is organized in the database system, mainly including two parts: the logical model and the physical model of the data. figure 2 is the data model diagr...

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Abstract

The present invention discloses a probability based big data query method and pertains to the technical field of databases. The method comprises: the step of partitioning a data set with a plurality of attributes according to a data model; the step of loading the partitioned data set according to a data probability placement model; and the step of performing probability query on the data set. The method is an approximately complete query method, which improves the query performance of data by appropriately sacrificing query integrity; realizes probability placement of data and solution of existence probability of data in each storage file by using a probability based data placement model; enables data query in a database system through total probability query by using a heuristic data query method; and ensures a query error of probability query through probability calculation.

Description

technical field [0001] The invention belongs to the technical field of databases, in particular to a probability-based big data query method. Background technique [0002] The high integration of the ternary world of man, machine, and things has triggered the explosive growth of data scale and the high complexity of data models. The world has entered the era of networked big data. The advent of the big data era has brought great challenges to traditional data management systems. NoSQL (NotonlySQL) databases have been widely favored by academia and industry for their high scalability, high availability, and flexible data models. Data query technology is one of the core technologies of database systems. With the development of cloud computing technology and NoSQL database technology, NoSQL-based data query technology has attracted much attention and has been widely studied in the industry. [0003] As we all know, the current mainstream NoSQL database is mainly based on the M...

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/2433G06F16/24532G06F16/278
Inventor 宋杰伍晋博张一川张莉
Owner NORTHEASTERN UNIV
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