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Method for searching massive data with multi-dimensional information

A massive data, multi-dimensional information technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of no authoritative reports, inevitable connection operations, and the optimization effect is not very obvious, so as to simplify addressing. Effect

Active Publication Date: 2013-12-04
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But also due to the inevitable connection operation, its optimization effect is not very obvious
MOLAP stores data as a data cube, but it needs to manage and optimize the dimensions, resulting in no authoritative reports on the current research on MOLAP and the system

Method used

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  • Method for searching massive data with multi-dimensional information
  • Method for searching massive data with multi-dimensional information
  • Method for searching massive data with multi-dimensional information

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Embodiment Construction

[0068] Hereinafter, the present invention will be further described in detail by taking certain marine scientific data as an example, in conjunction with the accompanying drawings and specific implementation methods.

[0069] This embodiment takes certain marine scientific data as the research object, and the marine data is massive data with three-dimensional information. Including: Time Dimension, Area Dimension and Depth Dimension, which are represented by Time, Area and Depth respectively. The dimension structure is as follows figure 1 shown. Among them, Time has four levels: Year, Month, Day, and Slot. Among them, Slot refers to a test in three time periods of a day, and its dimension values ​​are "morning", "afternoon" and "evening", and its dimension tree structure is as follows figure 2 shown. exist figure 2 , if there are 3 years of data (January 1, 2010 to December 31, 2012), then at the Year dimension level, there are 3 dimension values ​​corresponding to 2010,...

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Abstract

The invention discloses a method for searching massive data with multi-dimensional information, which relates to the field of data mining. The method comprises steps of: loading the dimensional information of the massive data with the multi-dimensional information; loading the massive data; adopting an on-line analysis processing (OLAP) method to search the massive data. The method for searching massive data with multi-dimensional information organizes the massive data with the multi-dimensional information through a dimensional coding method, utilizes a data segmentation storage method to simplify the data block addressing, quickly realizes dimensional hierarchy transformation in an intermediate variable (i.e. analytic path) manner, screens the data through utilizing a selecting method based on the data block, and only computes and processes the actual participating data.

Description

technical field [0001] The invention relates to the field of data mining, in particular to a massive data query method with multi-dimensional information. Background technique [0002] With the advent of the era of big data, it poses great challenges to traditional data analysis fields such as traditional data management and query. In order to deal with the challenges brought by massive data, the MapReduce programming model and distributed file system are widely used in academia and industry to deal with this challenge. OLAP (On-Line Analytical Processing) is a very important analysis means and method in the field of traditional data analysis. In the field of big data, new requirements are also put forward for OLAP analysis. [0003] OLAP can be divided into ROLAP (Relational OLAP-oriented online data analysis and processing), MOLAP (Multidimensional OLAP-oriented multi-dimensional online analytical processing) and HOLAP (Hybrid OLAP hybrid online analytical processing) ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 宋杰郭朝鹏王智徐澍张一川朱志良
Owner NORTHEASTERN UNIV LIAONING
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